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  • $90 hourly
    • 0.0/5
    • (NaN job)
    ↗️ I can start immediately however. I'd like to be sure we match well. 📌 Requirements call is a must! 🛑I will not participate in small fixes projects - sorry, guys. I know how to manage your expectations and to meet all your requirements. I am a Sofware Architect with 8+ years of engineering experience. I develop secure applications as a full-stack developer using Java and Kotlin. I create dynamic front-ends as a full-stack developer using JavaScript and TypeScript. I optimize database performance as a full-stack developer by leveraging SQL. I design responsive interfaces as a full-stack developer with HTML and CSS. I integrate strong back-end logic as a full-stack developer using Spring Framework. I build scalable solutions as a full-stack developer with Java and Kotlin. I enhance interactivity as a full-stack developer using JavaScript and TypeScript. I develop enterprise applications as a full-stack developer with Spring Framework. I structure software systems as a full-stack developer using Java and Kotlin. I ensure smooth API communication as a full-stack developer using RESTful architecture. I create seamless front-end experiences as a full-stack developer using JavaScript and TypeScript. I optimize data storage as a full-stack developer with SQL. I develop interactive UIs as a full-stack developer using HTML and CSS. I implement scalable solutions as a full-stack developer using Spring Framework. I enhance application performance as a full-stack developer with Java and Kotlin. I improve security as a full-stack developer using best practices in Spring Framework. Why Work With Me? I manage development workflows as a full-stack developer using Git. I build scalable applications as a full-stack developer with strong web development skills. I integrate third-party services as a full-stack developer using API integration. I create powerful back-end systems as a full-stack developer with Spring Framework. I develop dynamic front-ends as a full-stack developer using Angular and AngularJS. I enhance user experiences as a full-stack developer with jQuery. I focus on secure applications as a full-stack developer by prioritizing website security. I improve system architecture as a full-stack developer using RESTful architecture. I build fast applications as a full-stack developer with React and Node.js. I deploy scalable solutions as a full-stack developer using Amazon Web Services, Docker, and Kubernetes. I manage cloud-based applications as a full-stack developer with AWS. I enhance system security as a full-stack developer using Spring Framework. I optimize performance as a full-stack developer with Java and Kotlin. I improve web interfaces as a full-stack developer with JavaScript and TypeScript. I ensure structured data management as a full-stack developer with SQL. I develop flexible web designs as a full-stack developer with HTML and CSS. How I Can Help You I write clean code as a full-stack developer using Java and Kotlin. I manage databases as a full-stack developer with SQL. I optimize data storage as a full-stack developer using PostgreSQL, MongoDB, MySQL, and Redis. I configure servers as a full-stack developer using NGINX, Apache HTTP Server, and Apache Tomcat. I create efficient back-end systems as a full-stack developer with Spring Framework. I develop secure APIs as a full-stack developer using Apache Groovy. I deploy scalable applications as a full-stack developer with AWS, Docker, and Kubernetes. I optimize cloud solutions as a full-stack developer using AWS. I enhance business logic as a full-stack developer with Spring Framework. I improve API performance as a full-stack developer using Apache Groovy. I develop modern web applications as a full-stack developer using React and Node.js. I implement scalable back-end logic as a full-stack developer with Spring Framework. I integrate responsive front-end components as a full-stack developer with JavaScript and TypeScript. I ensure security and efficiency as a full-stack developer by following best coding practices. Let’s Work Together If you need a full-stack developer with deep expertise in Spring Framework, Java, Kotlin, SQL, JavaScript, HTML, and TypeScript, let’s discuss your project. Send me an invite, and let’s create something great!
    Featured Skill Microservices
    Web Development
    PostgreSQL
    Kotlin
    RESTful API
    RESTful Architecture
    API
    AngularJS
    React
    TypeScript
    Java
    JavaScript
    Angular
    Hibernate
    Microservice
    Spring Framework
  • $70 hourly
    • 0.0/5
    • (NaN job)
    Software architect and engineering lead with over 15 years of experience. Specialize in enterprise service architecture and design within the healthcare domain.
    Featured Skill Microservices
    Cloud Architecture
    Web API
    Database Development
    Database Design
    Angular
    Microservice
    Service Design
    Agile Software Development
    Software Development
    Software Architecture
    C#
    Java
  • $65 hourly
    • 0.0/5
    • (NaN job)
    Senior Full Stack / Serverless Engineer specializing in migrating from legacy code, working in polyglot (multi-language) environments, and protecting data integrity. I build modular, testable, and scalable systems that guarantee the integrity of your data, ensuring it can keep up with all your business needs. I have driven the migration of large-scale enterprise applications from legacy implementations to modern, cloud-based architectures while ensuring no loss of data in flight and minimizing downtime. As business needs change, technologies evolve, and developers leave a team, you must get to a robust, easy-to-maintain, well-documented codebase. Without institutional knowledge of the history behind each design decision, you can wonder how to escape a chaotic situation without affecting your end users. I bring a systematic approach to navigating these kinds of projects. Whether this is where your system is now, or you're starting something new and want to ensure you keep up with best practices from the start, working with me will ensure you end up with maintainable, thoroughly tested, clearly documented, and stable code. I will start by getting to know your business needs and technical requirements and, from there, develop a plan that divides your goals into clearly defined short-term milestones. My fixed-priced contracts ensure that your budget is not affected by surprises. At the same time, my agile approach to planning will keep things flexible enough to accommodate any shifting priorities.
    Featured Skill Microservices
    Spring Boot
    API Integration
    API Development
    Flask
    Koa
    ExpressJS
    Node.js
    Automated Deployment Pipeline
    Cloud Services
    AWS Lambda
    Terraform
    Microservice
    RESTful API
    Web Development
  • $38 hourly
    • 0.0/5
    • (NaN job)
    👋Problem-solving cybersecurity professional leveraging 8 years of work experience in cybersecurity research and implementation at a reknown telecommunication lab. Ph.D., CISSP-certified, I am skilled in designing, implementing and troubleshooting innovative security solutions protecting networks and systems, with a particular interest for cloud-native environments. My goal is to equip organizations with robust cybersecurity foundations, enhancing overall business resilience. ✨Skillset✨ Scripting and Security automation using Python Cloud computing and microservice architecture ( AWS, Docker) Risk management and vulnerability management IDS / IPS and anomaly detection Governance, Risk and Compliance Technical writing and documentation
    Featured Skill Microservices
    Information Technology
    Research Paper Writing
    Information Security
    Cyber Threat Intelligence
    Cybersecurity Monitoring
    Technical Writing
    Python
    Microservice
    Phishing Detection
    Website Audit
    Cloud Computing
    Risk Management
    Cybersecurity Management
  • $70 hourly
    • 0.0/5
    • (NaN job)
    I’m a senior full-stack developer with over 7 years of experience, working across industries like e-commerce, AI, SaaS, logistics, travel, and finance. My focus is on building web applications that make a meaningful impact. I’m skilled in a variety of technologies—like React, Angular, Vue.js, Next.js, Python, Django, FastAPI, and AWS—so I can create solutions that are both smart and easy to use. My Toolkit - Front-End: React, Angular, Next.js, Vue.js, TypeScript, JavaScript, Tailwind CSS, Material UI, Bootstrap - Back-End: Python, Django, FastAPI, Flask, Celery, Microservices, REST, GraphQL - Databases: PostgreSQL, MySQL, MongoDB, Redis - Cloud: AWS (Lambda, S3, ECS, CloudFormation, RDS), Azure, Google Cloud - DevOps: Docker, Kubernetes, CI/CD, Jenkins - Testing: unittest, pytest, Jest, Cypress Over the years, I’ve worked on some cool projects. I helped develop an IoT asset tracking system that saved $2B in outbound slack and improved cash flow by $1B. I also played a key role in optimizing product management for an e-commerce platform. On the tech side, I improved search accuracy by 40% using Elasticsearch and boosted user engagement by 30% through a front-end revamp with React. I also modernized legacy systems, making them more scalable and efficient. When I’m not coding, you’ll probably find me out on the trails in the Pacific Northwest or grabbing a coffee at a local café. I’m all about teamwork and love tackling new challenges. If you’re interested in working together, let’s chat and see what we can build!
    Featured Skill Microservices
    GraphQL
    Docker
    Microservice
    Amazon Web Services
    RESTful API
    Node.js
    JavaScript
    TypeScript
    Angular
    Vue.js
    React
    Flask
    FastAPI
    Django
    Python
  • $70 hourly
    • 0.0/5
    • (NaN job)
    - Results-driven Full Stack Developer with over 12 years of comprehensive experience in the design, development, implementation, and testing of enterprise applications across Healthcare, Banking, and Finance domains. Proficient in the full Software Development Life Cycle (SDLC), with strong expertise in .NET and .NET Core technologies. - Extensive experience in developing web applications using Classic ASP, ASP.NET Web Forms, and ASP.NET MVC. Skilled in building dynamic, user-centric interfaces with HTML5, CSS, JavaScript, jQuery, AJAX, AngularJS, and Angular. - Well-versed in working with various RDBMS platforms including MySQL, SQL Server, MS Access, Oracle, and DB2. Strong background in data integration and reporting using ETL tools such as SSIS, SSRS, Crystal Reports, and Tableau. - Proficient in developing and consuming Web APIs, Web Services, and WCF services, with practical experience in asynchronous programming, multithreading, and implementing design patterns. Experienced in migrating legacy applications to Microsoft Azure Cloud. - Hands-on experience with version control and CI/CD tools including Git, TFS, SVN, VSS, and Azure Pipelines. Adept at issue tracking and resolution using JIRA. Recognized as a dedicated team player with a strong work ethic, adaptability, and a continual learning mindset.
    Featured Skill Microservices
    VB.NET
    Git
    JavaScript
    Web API
    NoSQL Database
    SQL
    RESTful API
    Microservice
    Microsoft Azure
    Entity Framework
    React
    Angular
    ASP.NET
    .NET Framework
    C#
  • $40 hourly
    • 0.0/5
    • (NaN job)
    Senior software engineer specializing in high-performance backend systems, scalable microservices and cross-platform desktop applications. I bring 8+ years of experience across Rust and Golang for building cross-platform user interfaces. I help teams and companies with: - Backend: Rust and Golang for reliable, low-latency applications - Desktop Apps: Rust with Tauri for lightweight, modern UIs - Microservices: gRPC/REST APIs, PostgreSQL and Redis, Dockerized services - DevOps & Deployment: CI/CD pipelines for building, testing and deploying production apps I take ownership of projects end-to-end from architecture and development to delivery. I prioritize clean, maintainable code and clear, timely communication. Let's build something robust, efficient and user-friendly together.
    Featured Skill Microservices
    Crypto Wallet
    Web3
    Polkadot
    Solana
    CI/CD
    Docker
    Redis
    PostgreSQL
    Smart Contract
    Blockchain
    Desktop Application
    Microservice
    Solidity
    Golang
    Rust
  • $65 hourly
    • 0.0/5
    • (NaN job)
    Seasoned Data Engineer & Backend Developer with deep expertise in building high-performance, secure, and scalable data platforms for industries like Fintech, Health & Nutrition Tech, Digital Media (Amazon Music), Insurance, and Gaming/Sports Betting. I specialize in Python-driven data architectures on AWS and Azure, enabling real-time analytics, rigorous data quality, and secure data handling for batch and streaming workloads. My solutions turn complex datasets into business intelligence that powers product innovation and regulatory compliance. 🔹 Cloud-Native Data Pipelines – Expert in architecting ELT/ETL workflows using Apache Airflow, DBT, AWS Glue, and Azure Data Factory. 🔹 Streaming & Real-Time Systems – Built Kafka- and Kinesis-based pipelines with schema registry, Spark Streaming, and Azure Event Hubs. 🔹 Secure & Governed Architecture – Implemented granular IAM, end-to-end encryption, metadata lineage (AWS Glue Catalog, Azure Purview), and compliance controls for SOC and HIPAA-style standards. 🔹 Backend & Microservices – Designed modular FastAPI/Flask services, asynchronous job queues (Celery, Lambda), and robust APIs (OAuth2, JWT, API Gateway). 🔹 Data Modeling & Storage Optimization – Skilled in dimensional models, data vaults, and tuning storage engines (PostgreSQL, Redshift, Snowflake, S3/ADLS Lakehouses). 🎧 On Amazon Music, I contributed to scalable event-driven services and analytics pipelines that processed billions of user interactions to drive personalization and reporting. ✅ Let’s work together if you need: Real-time & batch data infrastructure Secure cloud data platforms (AWS, Azure) Streaming data ingestion & CDC (Debezium, Kafka) Optimized data lake/warehouse design Backend services to support analytics and product features 📈 Whether you're building a modern data stack or re-architecting legacy systems, I bring hands-on expertise, architectural clarity, and a delivery mindset.
    Featured Skill Microservices
    Django
    Microsoft Power BI
    Databricks Platform
    Data Modeling
    Back-End Development
    Snowflake
    Data Warehousing & ETL Software
    Microservice
    FastAPI
    SQL
    AWS Glue
    Apache Kafka
    dbt
    Apache Airflow
    Python
  • $100 hourly
    • 0.0/5
    • (NaN job)
    — TOP RATED PLUS Freelancer on UPWORK — EXPERT VETTED Freelancer (Among the Top 1% of Upwork Freelancers) — Full Stack Engineer — Data Engineer ✅ AWS Infrastructure, DevOps, AWS Architect, AWS Services (EC2, ECS, Fargate, S3, Lambda, DynamoDB, RDS, Elastic Beanstalk, AWS CDK, AWS Cloudformation etc.), Serverless application development, AWS Glue, AWS EMR Frontend Development: ✅ HTML, CSS, Bootstrap, Javascript, React, Angular Backend Development: ✅ JAVA, Spring Boot, Hibernate, JPA, Microservices, Express.js, Node.js Content Management: ✅ Wordpress, WIX, Squarespace Big Data: ✅ Apache Spark, ETL, Big data, MapReduce, Scala, HDFS, Hive, Apache NiFi Database: ✅ MySQL, Oracle, SQL Server, DynamoDB Build/Deploy: ✅ Maven, Gradle, Git, SVN, Jenkins, Quickbuild, Ansible, AWS Codepipeline, CircleCI As a highly skilled and experienced Lead Software Engineer, I bring a wealth of knowledge and expertise in the areas of Java, Spring, Spring Boot, Big Data, MapReduce, Spark, React, Graphics Design, Logo Design, Email Signatures, Flyers, Web Development (HTML, CSS, Bootstrap, JavaScript & frameworks, PHP, Laravel), responsive web page development, Wordpress and designing, and testing. With over 11 years of experience in the field, I have a deep understanding of Java, Spring Boot, and Microservices, as well as Java EE technologies such as JSP, JSF, Servlet, EJB, JMS, JDBC, and JPA. I am also well-versed in Spring technologies including MVC, IoC, security, boot, data, and transaction. I possess expertise in web services, including REST and SOAP, and am proficient in various web development frameworks such as WordPress, PHP, Laravel, and CodeIgniter. Additionally, I am highly skilled in Javascript, jQuery, ReactJs, AngularJs, Vue.Js, and Node. C#, ASP.NET MVC In the field of big data, I have experience working with MapReduce, Spark, Scala, HDFS, Hive, and Apache NiFi. I am also well-versed in cloud technologies such as PCF, Azure, and Docker. Furthermore, I am proficient in various databases including MySQL, SQL Server, MySql, and Oracle. I am familiar with different build tools such as Maven, Gradle, Git, SVN, Jenkins, Quickbuild, and Ansible.
    Featured Skill Microservices
    Apache Spark
    Database
    WordPress
    Cloud Computing
    Spring Framework
    Data Engineering
    NoSQL Database
    React
    Serverless Stack
    Solution Architecture Consultation
    Spring Boot
    DevOps
    Microservice
    AWS Fargate
    AWS CloudFormation
    Java
    CI/CD
    Amazon ECS
    Containerization
  • $80 hourly
    • 0.0/5
    • (NaN job)
    Hi, I am a full stack developer with 10+yrs of experience and expertise on software development. Experience and Expertise in: + Project Management + MERN Stack + PHP + Java + PostgresSQL + MySQL + Yii + Laravel + Codeigniter + Fuelphp + Prestashop + Opencart + Javascript + ReactJs + React Native + VueJs + Angular + NodeJS + Express + jQuery + AJAX + Rest Api + GraphQL + HTML5 + CSS3 + XML + SOAP + RSS + AWS + Git + Hybrid Mobile Apps + Wordpress Development, Wordpress plugin development & customization + Wordpress Theme Development & Customization + WooCommerce + Responsive Web Design + Web Development Have any questions? Contact me! Regards Umesh Maharjan
    Featured Skill Microservices
    OpenCart
    API
    Yii2
    Vue.js
    ExpressJS
    React
    Node.js
    Java
    PHP
    Microservice
    WordPress
    CSS 3
    MongoDB
    Angular
    MySQL
  • $40 hourly
    • 0.0/5
    • (NaN job)
    ✅ TOP RATED Freelancer on UpWork, specializing in 🚀high-performance🚀 Nextjs / React sites, GraphQL, MongoDB, and Postgres backends, mobile development with React Native, and secure smart contracts with Solidity. I'm the perfect all-in-one package for creating any site, service, or product. Being a freelancer and content writer, I'm constantly keeping up with the latest tech and best practices. Feel free to look at my other specialized profiles for what you're looking for, or just shoot me a message └(^o^ )Ｘ( ^o^)┘.
    Featured Skill Microservices
    React Native
    Tailwind CSS
    PostgreSQL
    Next.js
    MongoDB
    Vue.js
    Angular
    Microservice
    GraphQL
    Gatsby.js
    JavaScript
    Sass
    React
    Node.js
    Docker
  • $40 hourly
    • 0.0/5
    • (NaN job)
    Full Stack Developer & AI/ML Solutions Architect Passionate about transforming innovative ideas into scalable, intelligent web applications. With 10+ years of experience, I specialize in building end-to-end solutions using Python (Django/DRF, Flask, FastAPI) and React/Next.js, while integrating cutting-edge AI/ML technologies to solve real-world problems. Key Projects & Achievements: 1. SimpleTalk.ai (AI-Powered Chatbot Platform) - Led the development of a conversational AI tool using Django REST Framework for backend logic and React for a dynamic admin dashboard. - Integrated NLP models (BERT, GPT-3.5) to enable context-aware responses, reducing user query resolution time by 40%. - Designed a scalable microservices architecture with FastAPI and Docker, ensuring seamless deployment on AWS. - Result: Enhanced customer support automation for 15+ clients, handling 10k+ daily interactions with 98% accuracy. 2. Voocon.ai (Voice Analytics SaaS Platform) - Built a voice-to-text analytics tool using FastAPI for real-time audio processing and Next.js for a performant, SEO-friendly frontend. - Trained custom ML models to analyze sentiment and extract key phrases from audio, achieving 92% accuracy across multiple languages. - Implemented WebSocket-based streaming for live transcription, reducing latency by 60% compared to traditional REST APIs. - Result: Acquired 500+ active users within 3 months, with clients reporting a 30% boost in call center efficiency. 3. Dev.predictany.com (Predictive Analytics Dashboard for Developers) - Developed a data-driven platform using Django and React to forecast project timelines and resource allocation. - Integrated time-series forecasting models (Prophet, LSTM) to predict development bottlenecks, improving project delivery accuracy by 25%. - Created interactive data visualizations with D3.js and Chart.js to simplify complex insights for stakeholders. - Result: Adopted by 20+ tech teams, reducing project overruns by 15% and boosting client ROI. Technical Expertise - Backend: Python (Django, Flask, FastAPI), REST/GraphQL APIs, PostgreSQL, MongoDB - Frontend: React, Next.js, Redux, TypeScript, Tailwind CSS - AI/ML: Model development (NLP, predictive analytics), TensorFlow, PyTorch, Hugging Face - DevOps: AWS, Docker, CI/CD pipelines, Kubernetes - Collaboration: Agile workflows, Jira, Slack, Git Why Work With Me? - Proven AI/ML Integration: I don’t just code—I solve problems. My projects, like SimpleTalk.ai and Voocon.ai, demonstrate how I blend AI with web development to create measurable impact. - Full-Cycle Ownership: From ideation to deployment, I ensure scalability, security, and performance. - Client-Focused: Transparent communication, on-time delivery, and a commitment to exceeding expectations. Let’s work together partner: Whether you need an AI-powered SaaS platform, a predictive analytics tool, or a scalable web app, I bring technical excellence and a results-driven mindset to every project. Let’s discuss how I can help you turn your vision into reality.
    Featured Skill Microservices
    Python Scikit-Learn
    Natural Language Processing
    Microservice
    AI Bot
    TensorFlow
    React
    LangChain
    Generative AI
    Machine Learning
    Artificial Intelligence
    OpenAI API
    LLM Prompt
    Flask
    Django
    Python
  • $110 hourly
    • 0.0/5
    • (NaN job)
    I am an experienced Principal Engineer/DevOps Architect/Azure Architect with 20 plus years of experience in the software industry working for Fortune 100 companies such as Microsoft, Deloitte, Honeywell, Accenture to name a few. I have worked in various software projects spanning from the initial POC phase to fully functional product running in production. My key strength is to figure out how to solve a problem and find the right solution with high quality. I can help you with any kind of implementations related to Azure technologies, DevSecOps, Software Architecture and Kubernetes. Career highlights include:- - Received award from all the companies I worked for. - Microsoft Global Hackathon Award winner 2023 (Honorable mention) - Microsoft Certified Solution Architect, DevOps Architect and Kubernetes Certified Skills Used:- ⭐ C# Backend Services ⭐ Azure DevOps Pipeline Automation using PowerShell ⭐ Kubernetes Deployment and Troubleshooting ⭐ Azure Cloud Architect ⭐Terraform automation ⭐ Microsoft Identity Server integration, Okta Auth0 integration ⭐ Microsoft Teams integration ⭐ Open AI API integration ⭐.Net Core Microservices ⭐ Azure Kubernetes Service Chaos Testing using Litmus ⭐ Docker, Containerization, CI/CD ⭐ Microsoft Graph API integration ⭐ Azure AD B2C Setup ⭐ Microsoft Entra ID or Azure AD ⭐ Azure Cognitive Services ⭐ VS Code Extension Development ⭐ GITHUB Copilot ⭐ Azure Data Factory Pipelines | ETL ⭐ PostGres Sql Data Load ⭐ Sql Server and Azure SQL implementations ⭐ Azure Migrations
    Featured Skill Microservices
    Jira
    GitHub
    Microservice
    React
    TypeScript
    Azure Cosmos DB
    Azure Cognitive Services
    Azure Bot Service
    Azure App Service
    DevOps Engineering
    DevOps
    Kubernetes
    Microsoft Azure
    C#
    .NET Framework
  • $45 hourly
    • 0.0/5
    • (NaN job)
    As a seasoned Senior Software Quality Assurance Engineer with over 5 years of experience, I bring a wealth of knowledge and expertise in ensuring the highest standards of software quality. My career is built on a solid foundation of technical skills, meticulous attention to detail, and a relentless pursuit of excellence. 🚀 Core Competencies: ● Proficient in manual and automated testing, including functional, regression, performance, and security testing. ● Skilled in designing, developing, and implementing automated test scripts using tools like Selenium, QTP, JIRA, and TestComplete. ● Extensive experience with Agile and Scrum methodologies, ensuring continuous integration and delivery. ● Expertise in tracking, managing, and resolving defects using tools such as JIRA, Bugzilla, and HP ALM. ● Proficient in load and stress testing using JMeter, LoadRunner, and other performance testing tools. ● API Testing: Skilled in API testing using Postman, SoapUI, and REST Assured to ensure robust backend functionality. ● Documentation: Adept at creating detailed test plans, test cases, and test reports to provide clear insights into testing processes and outcomes. 🚀 Why Choose Me? I am passionate about delivering high-quality software solutions that exceed client expectations. My approach is characterized by a keen eye for detail, strong problem-solving skills, and a collaborative mindset. I thrive in dynamic environments and am committed to continuous learning and professional development. If you are looking for a dedicated Senior Software Quality Assurance Engineer who can elevate your software quality to new heights, let's connect and discuss how I can contribute to your success.
    Featured Skill Microservices
    pandas
    Microservice
    Data Visualization
    Quality Assurance
    Technical Support
    Excel Macros
    Jenkins
    TestRail
    Jira
    Unity
    C#
    Postman
    Apache JMeter
    Manual Testing
    API Testing
    Python
    Automation
    Selenium
  • $125 hourly
    • 5.0/5
    • (32 jobs)
    Bringing new ideas to life, one byte at a time. As a seasoned professional, I bring a wealth of experience in design, strategic guidance, and product ownership to help businesses navigate the complexities of software development. My mission is to empower companies to achieve their goals by providing tailored solutions that align with their unique vision and business objectives. What I Offer: Strategic Design & Architecture I specialize in translating business goals into robust, scalable software architectures. Whether building a SaaS platform from scratch or scaling an existing product, I ensure your technical foundation is solid and future-proof. End-to-End Product Ownership I fully own the product development lifecycle from initial concept to final deployment. This includes everything from designing user experiences to managing development teams and ensuring the final product meets functional and strategic requirements. Expert Guidance With years of experience in the tech industry, I provide strategic advice that helps businesses make informed decisions about technology investments, product roadmaps, and development processes. I aim to ensure your project is technically sound and aligned with your long-term business strategy. SaaS Expertise I have extensive experience developing and scaling SaaS products and a deep understanding of the unique challenges associated with this business model. From subscription management to multi-tenant architecture, I can help you build a reliable, secure, and easy-to-manage SaaS product. Team Development & Leadership Building and leading high-performing teams is at the core of what I do. I’ve successfully assembled and guided teams across diverse projects, fostering a culture of collaboration, innovation, and excellence. Whether you need a solo expert or an entire team, I ensure everyone is aligned and focused on delivering quality results. Skills: Leadership Project management, team development, client engagement, product ownership, definition and documentation, strategic guidance, mentorship Design Domain-Driven Design, N-tier and Streaming Microservice Architectures, Machine Learning and AI, IdP integration with Auth0 and Cognito, Security Back-end AWS, Firebase, Infrastructure as Code (IaC) with Terraform and CloudFormation, ECS Fargate, Docker, Apache, Lambda, Serverless, REST, NestJS, WebSockets, SQL, MongoDB, MySQL, DynamoDB Front-end Next.js, React, Material UI, React Native/iOS/Android, WordPress, Elementor, Custom Plugins, JQuery, HTML/CSS, Bootstrap, Tailwind, SASS, LESS, Webpack, Babel DevOps CI/CD with GitHub Workflows, Jenkins, SecDevOps Languages Typescript, Node.js, JavaScript, Swift, Python, PHP Key Accomplishments: - Architected and implemented a HIPAA-compliant multi-tenant SaaS platform. - Led the development of a critical platform for a Fortune 50 company. - Delivered a turn-key e-commerce solution for a specialty retailer, fully integrated with their POS system. - Successfully developed a FinTech startup from the ground up. Why Work With Me? Holistic Approach I’m not just a developer; I’m a strategic partner who understands the broader business context and how to navigate the complexities of product development. Proven Track Record With a history of successful projects and long-term client relationships, I consistently deliver results that exceed expectations. Adaptability I tailor my approach to your specific needs, whether hands-on development, strategic guidance, or leading a team to success. Let's Work Together If you’re looking for a partner who can guide your project from concept to launch, focusing on quality, scalability, and strategic alignment, let’s connect. Together, we can bring your vision to life and build something exceptional. "Chris was an excellent extension of our technical team for a complex enterprise development effort over 6+ months. I can strongly recommend Chris' work ethic, communication, punctuality, professionalism, and engineering knowledge." "Chris' prior experience as an entrepreneur and product developer was very helpful to improve our business outcomes." "An exceptional experience in getting my AWS issues resolved. Christopher was professional, knowledgeable and efficient. Highly recommended." github.com/clalexander
    Featured Skill Microservices
    WordPress
    jQuery
    CI/CD
    Microservice
    Amazon Web Services
    NoSQL Database
    Dev & IT Project Management
    Terraform
    Full-Stack Development
    TypeScript
    JavaScript
    Web Development
    Domain-Driven Design
    React
    SQL
  • $45 hourly
    • 5.0/5
    • (1 job)
    full stack software developer with 4+ years of experience, ex-microsoft, ex-consultant. Eager to meet new people and learn new things. Checkout keatonwineman.com for more.
    Featured Skill Microservices
    Microservice
    API
    Full-Stack Development
    Vue.js
    Tailwind CSS
    Microsoft Azure
    Angular
    C#
    HTML5
    React
    Node.js
    Amazon Web Services
    CSS
    SQL
    Python
  • $80 hourly
    • 5.0/5
    • (5 jobs)
    Current working experience in Java Microservices framework using Spring Boot, Swagger-ui. Efficient in Service Oriented and middle-tier application server architectures using JAVA and C#. Expert in agile development of Web Services with RESTful API and SOAP. Extensively worked on Java Web Services J2EE, Servlet, EJB, JSP, JMX. Analysis and design of databases in Oracle, MySql Server, Hibernate as ORM. Skills in enterprise application servers (JBoss, Tomcat), web servers (Apache, Weblogic) Strong to develop use cases in Junit, Mockito, PowerMockito test framework and API. Worked in popular design patterns like Singleton, Façade, Factory, MVC Skilled in source code repository GIT, SVN to deliver scalable and reliable applications. Potential experience in web development framework Spring MVC, ASP.Net MVC and Yii. Specialized in IDEs IntelliJ IDEA, Eclipse and YourKit profiler for high volume applications. Highly exposed to JIRA, BitBucket, Confluence for documentation, code review, issue tracking. Efficiency with CMS like Drupal, worked in web design using HTML, CSS, Javascript Advanced skill with scripting languages like Java script, Jquery, Ajax, PhP, Perl, Python. Adaptable and proactive in fast paced agile environment with work ethics and able to collaborate in team or deliver solutions individually with prioritization and effective time management.
    Featured Skill Microservices
    Oracle PLSQL
    Java
    Spring Boot
    Spring MVC
    HTML
    CSS
    JUnit
    SQL
    Microservice
    J2EE
  • $60 hourly
    • 5.0/5
    • (9 jobs)
    I have a B.S. in Computer Science and over 3+ years of professional experience in the industry. I go above and beyond to deliver high quality solutions while still being affordable to small businesses and startups. I specialize in Python and React Solutions
    Featured Skill Microservices
    Node.js
    CSS
    Heroku
    HTML
    React
    Microservice
    JavaScript
    Django
    Python
  • $175 hourly
    • 5.0/5
    • (1 job)
    What I have done in a nutshell: - Designed, built, and maintained multiple mobile and web apps, cloud infrastructure, and architecture roadmap. - Assisted clients in migrating to AWS and Azure Cloud. - Helped clients solve complex technological, security, performance, and scalability problems. - Assembled, mentored, and led talented, passionate, and hardworking teams. Domain expertise: - Medical and clinical trials - Healthcare, pharma, and medical devices, including Software as a Medical Device (SaMD) - Validated software development in regulated areas such as FDA approval, HIPAA, GDPR, etc. - IoT - Financial and insurance - Retail management and operations - Human resource management - Big Data Analytics - Diabetes management My passion is delivering innovative, modern, and high quality software products to my clients. I build long term relationships. Our clients come back and refer others. As a software engineer and architect at heart, learning new technologies and new methods and applying them in the day to day work is a never ending endeavor. As a technical leader I understand a successful project requires constant attention to the client's needs and the needs of the team. Efficient teams understand and share vision with the client and among themselves, and have a strong, positive culture. I make it a personal responsibility to ensure the success of every project. Please refer to my LinkedIn profile for additional information and recommendations. Leo Kudryavtsev
    Featured Skill Microservices
    Microservice
    Mobile Development Framework
    Kubernetes
    Bluetooth
    JavaScript
    Java
    Amazon Web Services
    Cloud Computing
    Docker
    API Development
    Big Data
    Architectural Design
  • $250 hourly
    • 5.0/5
    • (11 jobs)
    Marc Adler is the former Chief Architect of Citigroup, MetLife, XP Investments, and ADP, and the former CTO of various startups. For the past 5 years, I have been a fractional CTO under the banner of "CTO as a Service" (ctoasaservice dot org), where I have helped dozens of startups. I am available to help your company to develop and troubleshoot your technical team and help you bring your ideas to fruition. If you need someone to code up your application or MVP, I can even get down and dirty with the code. Since starting CTO as a Service in late 2018, I have helped companies in EdTech, Real Estate Tech, Health Care and Wellness, financial services and trading, and many more. My model is to charge you for what you use, in the same manner that you would employ a lawyer or an accountant. You can use me for one hour a month, one hour a day, or 8 hours a day. Here are some of the ways that I could help you. * Vision: Helping you realize your vision by helping to assemble a development team and leading them to develop a product * Innovation: Taking an existing product and helping to move it to the future state * Opinions: Assessment of your current applications and development organization * Confidence: Meeting with investors. Often times, an investor will be more comfortable knowing that there is someone with a lot of senior-level experience behind the scene. * Design: Architecting and designing systems, especially cloud-based systems * Refactoring: Transforming your system into microservices * Hacking: Writing production-quality code * Documentation: Writing technical roadmaps and white papers * Faceoffs: Performing product evaluations * Due Diligence: Vetting vendors, and facing off with CEO’s, CTO’s and Chief Architects from other organizations References are available on request.
    Featured Skill Microservices
    Node.js
    Amazon Web Services
    Golang
    C#
    Microservice
    Software Architecture & Design
    Messaging System
    Enterprise Architecture
    Microsoft Azure
    Systems Development
  • $50 hourly
    • 5.0/5
    • (3 jobs)
    👩🏽‍💻 Experienced Full Stack Developer with expertise in a diverse range of technologies, including Java, Spring Boot, React, Node.js, Flutter, and AWS. With a rich background spanning over 5 years, I have successfully contributed to the development of ride hailing platforms, Point of sale systems, and crafted customized web applications to meet diverse business requirements. 🚀 My proficiency extends across both front-end and back-end development, showcasing a comprehensive skill set that includes React for dynamic user interfaces, Node.js for scalable server-side applications, and Flutter for cross-platform mobile development. In addition, I have a strong foundation in Java and Spring Boot for robust back-end solutions. 🌐 Working with variety of companies, I have consistently demonstrated intricate problem-solving skills, a commitment to quality assurance, and a focus on timely project delivery. My portfolio stands as a testament to my ability to adapt and excel in challenging environments. ☁️ As an AWS enthusiast, I leverage cloud solutions to ensure optimal performance and security for digital applications. I am also Azure Fundamental certified, further attesting to my commitment to integrating the best cloud solutions to meet client needs. 🌍 Fluent in both English and Amharic, I bring effective communication skills to the table, fostering seamless collaboration with diverse teams. Let's work together to turn your digital vision into a reality! 🎩 Senior Full-Stack Developer with 5+ years of experience. My skill sets senior full-stack developer : ✔️ JavaScript, Java, TypeScript, Kotlin, Dart ✔️ Spring boot, Spring ( Cloud, Security, Data, MVC, Gateway…), Hibernate, JPA, React.js, Node.js, TypeScript, Flutter ✔️ Material-UI, Tailwindcss, Styled-component, CSS, ✔️ MongoDB, GraphQL, MySQL, PostgreSQL, Redis ✔️ AWS Services ✔️ Puppeteer, Junit, Mockito, Unit tests ✔️ Oauth2, OIDC / OpenId Connect ⭐ Elevating Your Project with Unparalleled Expertise ⭐ ✔️ Cutting-Edge Technical Proficiency: ✔️ Solution-Focused Ingenuity ✔️ Globally Recognized Collaboration: A track record of collaboration with esteemed international companies underscores my ability to comprehend and execute high-standard project requirements, consistently delivering world-class results. ✔️ Fluent Communication Bridge: Proficiency in both English and Amharic facilitates seamless interactions, providing a crystal-clear understanding of project needs, regardless of your team's geographical location. ✔️ Cloud Integration Mastery: I seamlessly integrate and optimize cloud solutions, ensuring your project excels in performance, scalability, and security. ⭐ Why Enlist My Expertise ⭐ ✔️ Holistic Technical Proficiency ✔️ Seasoned Mastery: With over 5 years in Full Stack Development, I've successfully spearheaded projects ranging from start-ups to globally recognized corporations. ✔️ Collaborative Leadership: As a seasoned team lead, I efficiently orchestrate, supervise, and review tasks, ensuring the seamless progression of projects. ✔️ Accessibility and Responsiveness: Prioritizing open communication, I remain highly responsive, ensuring clients are consistently in the loop, and their needs are promptly met. 🚀 As a adept Full Stack Developer, you can rely on my professional approach. With an availability of 8 hours/day, expect clean coding, efficient solutions, and innovative insights for your site or service. 💡 Quick Tip: Appreciate your interest in getting to know me better! Feel free to reach out directly or extend an invitation to your Upwork project. Together, we can turn your vision into a reality.
    Featured Skill Microservices
    Docker Compose
    Git
    Docker
    Microservice
    AWS Lambda
    REST API
    Hibernate
    Spring Boot
    JavaScript
    Node.js
    Flutter
    React
    Java
  • $90 hourly
    • 5.0/5
    • (14 jobs)
    I am a certified Azure Architect and Software Developer from Tampa, Florida. I have experience designing and building enterprise systems in the cloud and on-premise for Fortune 500 companies and small start-up businesses. My biggest customers: are Deloitte, Humana, Bernhard, and ID Logistics. I can start the project from scratch, advise on existing issues, provide technical guidance, and help to organize IT assets. My leadership experience includes managing cross-functional teams, both local and offshore. I am comfortable working with and will help with the technical decision-making. Some of my core competencies are as follows: - Cloud architect and configurations (Azure Functions, Azure Event Hub, Azure Stream Analytics, Azure IoT Hub, Azure Service Bus, Azure CosmosDB, Azure SQL, AKS, Istio, Docker, Git), Vision AI - Microservice Architecture, Event-driven development - Mobile App development using React Native - Web API development (C#, Python, Web API, OAuth 2.0, REST, GraphQL) - Web App Development (Angular, React, HTML, JavaScript) I can help you set up Azure DevOps and GitHub. If you want Authentication with Azure B2C or Azure B2B - look no further - ask me to help. Perhaps you prefer Auth0? I can help here too! CERTIFICATIONS Azure Solutions Architect Expert (2023) Microsoft Azure Architect Technologies AZ-300 Microsoft Azure Architect Design AZ-304 Feel free to reach out to me at any time!
    Featured Skill Microservices
    React Native
    .NET Core
    Azure IoT HuB
    Mobile App Development
    Architecture
    Analytics
    React
    Microsoft Azure
    Microservice
    Kubernetes
    Web Development
    C#
    Angular
    Azure Cosmos DB
    .NET Framework
  • $47 hourly
    • 5.0/5
    • (2 jobs)
    I've been working in the profession for 8 years primarily as a full stack developer. I have experience SQL, Web, Desktop, and Mobile development. I have worked on large enterprise cloud products to small websites. I'm the most comfortable using C# with .Net Framework/Core and ASP.NET on the back end, JavaScript/Vue/React/Angular on the front end, and SQL Server as a database.
    Featured Skill Microservices
    .NET Core
    Microsoft Azure
    API
    Angular
    .NET Framework
    Microservice
    ASP.NET
    Vue.js
    SQL
    React
  • $100 hourly
    • 4.9/5
    • (48 jobs)
    Are you looking for a cybersecurity expert to secure your Microsoft 365 environment and protect your business from potential threats? Look no further! As a Certified Microsoft Cloud Security Architect with over 20 years of experience, I specialize in helping SMB companies implement robust security measures using zero-trust principles and a suite of Microsoft Defender products. My extensive background in Microsoft cloud technologies allows me to drive the overall vision, architecture, execution, and delivery strategy for mission-critical systems and platforms. I have a proven track record of partnering with key stakeholders to identify process improvements and structuring implementation procedures to resolve complex business and technical challenges. Why Choose Me? Expertise in Microsoft Defender Products: I specialize in leveraging Microsoft Defender for Identity, Defender for Office 365, Intune, and Information Protection with Sensitivity Labels to secure your Microsoft 365 environment. Zero-Trust Security Principles: I implement zero-trust security principles to ensure that your organization's data and systems are protected from unauthorized access and potential threats. Proven Experience: With a background in working with Fortune 500 companies and startups in the medical, finance, transportation, and logistics fields, I bring a wealth of knowledge and experience to the table. Comprehensive Security Solutions: From device management to data loss prevention, I provide comprehensive security solutions tailored to your organization's needs. Areas of Expertise: Identity: Critical configurations in Entra ID leveraging conditional access policies to support secure identity management and device enrollment. Devices: Configuration support for Intune and Defender for Endpoint to manage and secure corporate and personal devices. Applications: Harden security posture of all Microsoft 365 apps with robust data loss prevention strategies. Data: Information Protection with Sensitivity Labels to classify and protect sensitive data. Network: Leveraging NordLayer VPN to secure remote workers and ensure secure network access. By combining my deep technical expertise with a strategic approach, I help SMB companies secure their Microsoft 365 environments and achieve their business goals through innovative cloud solutions. Let's work together to protect your business and ensure a secure and efficient IT environment.
    Featured Skill Microservices
    Kubernetes
    Cloud Architecture
    Cloud Computing
    Microsoft Endpoint Manager
    Azure IoT HuB
    Docker
    API Integration
    System Administration
    Application Integration
    Azure App Service
    Android Smartphone
    Cloud Engineering Consultation
    DevOps
    Microsoft Windows PowerShell
    Microsoft Azure
    Terraform
    Microservice
    iPhone
  • $50 hourly
    • 5.0/5
    • (6 jobs)
    I am Sohaib, a seasoned Full Stack Developer with 5 years of experience building modern, high-performance web applications. I’m passionate about crafting scalable, secure solutions and automating processes to help businesses operate more efficiently. My skill set spans both frontend and backend development, incorporating Java, Python, Node.js, React, Angular, Salesforce and AI to deliver end-to-end results. What I Bring to the Table: Frontend Excellence: Proficient in HTML5, CSS3, JavaScript, React, and Angular to create dynamic, user-friendly interfaces. Backend & APIs: Experienced in Java (REST APIs, Spring Boot), Python scripting for automation, and Node.js for building fast, scalable servers. Salesforce Administration & Development: Customizing CRM processes and workflows using Flow Builder, Process Builder, Apex, and Lightning Components to maximize productivity. Database Expertise: Skilled in managing PostgreSQL, MySQL, and other relational/noSQL databases for efficient data handling and reporting. Automation & Integrations: Implementing seamless cross-platform workflows using tools like n8n, Zapier, Google Apps Script, and MuleSoft, ensuring your systems communicate effortlessly. Cloud & DevOps: Familiar with AWS, Docker, and CI/CD pipelines to streamline deployment and maintenance. I believe in transparent communication, a focus on business goals, and delivering solutions that drive real impact. Whether you need to build a brand-new platform or optimize an existing system, I’m here to help turn your vision into a functional, high-performing reality. Ready to take your project to the next level? Reach out, and let’s explore how my full-stack and Salesforce experience can add tangible value to your business. Let’s collaborate and create something outstanding together!
    Featured Skill Microservices
    CRM Development
    Salesforce Service Cloud
    Salesforce App Development
    Salesforce Einstein
    Salesforce
    CSS
    HTML
    JavaScript
    Docker
    Microservice
    Java
    RESTful API
    Kubernetes
    AngularJS
    Spring Boot
  • $70 hourly
    • 5.0/5
    • (22 jobs)
    I first discovered my passion for programming when I was 12yrs old after getting a book to learn C++ in 21 days. I'm grateful to have gotten such a start as the lessons I learned then both in programming and object oriented design have stayed with me through my entire journey. Eventually I moved on to learn other languages like Visual Basic, Liberty Basic, Python, PHP, JavaScript, Lua, Java, etc., etc. I programmed primarily as a hobbyist for about 16 years working on projects that interested me that I could learn from until I finally broke into the industry professionally in 2016. I started as a web developer and was quickly moved up to a SR Engineer as my experience clearly shined through. I had the privilege of getting to learn and work on a large team of developers that followed a strict dev ops process to ensure that we worked together to deliver on excellence. Since 2016 I have specialized in NodeJS applications. Mostly on a MEVN stack (Mongo, Express, VueJS, Node) using NuxtJS for the front-end and MoleculerJS Microservices for the backend. I am well versed with this stack and every part of the development process that it entails. I can help you plan, build and deliver your next business application or project all the way from gathering requirements to actually implementing the solution. I work quickly and efficiently and deliver quality solutions that stand the test of time. My longest running software in production so far actually had an 8 year run (it was a simple JavaScript UI for expediting note taking and troubleshooting for Medtronic Diabetes pump support specialists, they just retired it last year for something that fully integrates with SAP). I consider myself an especially great asset to startups and small-medium sized organizations due to my wide range of experience and my ability to perform in various roles surrounding software engineering. Not only can I help you develop an amazing business solution, but I can help your team implement and follow a proper dev ops process and teach them to achieve success.
    Featured Skill Microservices
    Software Documentation
    Software Architecture & Design
    Enterprise Software
    JavaScript
    Node.js
    Microservice
    Nuxt.js
    Vue.js
    API Integration
    Web Application
    Firebase Cloud Firestore
    JSON
    MongoDB
  • $80 hourly
    • 5.0/5
    • (55 jobs)
    I write code that smells like Lilac and reads like Byron. I have a compulsive love for elegant architecture, Stockholm syndrome for clear documentation, and a solid background in clean code. I’ve taken multiple projects from ideation to production, discovered new mathematical transforms, led teams of developers, wrangeled interns, and presented to executives. I’ve tested my mettle contending with stormy seas in small watercraft, particularly puckering precipices on skis, and freezing desert nights without so much as a tent to shelter under. I’ve gone ice breaking in a canoe, sent the fingers on ski blades, been skinny dipping in frigid alpine lakes, driven in LA, and have stories enough to last long into the night. All this to say, your biggest, grimiest, oldest ball of mud doesn’t scare me in the slightest. When things go awry in the worst of ways, I get loud and I lead. I combine the knowledge of a software engineer with the swarthy gumption of an adventurer, and the hard won experience of both. Let me build you something beautiful!
    Featured Skill Microservices
    Data Extraction
    Data Mining
    Web Crawling
    Blender
    Data Scraping
    C++
    Java
    C#
    SQL
    Python
    Microservice
    Distributed Computing
    Software Architecture & Design
    Serverless Computing
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