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Rating is 4.7 out of 5.
4.7/5
based on 131 client reviews
  • $50 hourly
    • 4.9/5
    • (23 jobs)
    Full stack developer with lots of experience in Grails, Java, J2EE, Hibernate, Spring, Struts, SpringBoot. Professional and academic background on architecting and building Multi-Tenant Software as a Service. Over the last 11 years, I have worked on variety of projects including web sites/Web applications, Enterprise applications, SAAS and Cloud, Microservices, Mobile Applications My skill sets include: * Languages: Java, Groovy, SQL, C, Ruby, CSS, HTML, JavaScript, PHP * Frameworks Grails, SpringBoot, Bootstrap, Ruby on Rails, Hibernate, Hadoop, Spring, YII, Laravel * Libraries/APIs Java Collections, jQuery UI, jQuery, JAX-RS, Google Gson, JavaMail, Amazon API, Asterisk-Java, Selenium, HTMLUnit, Jsoup * Databases: - Relational: Mysql, PostgreSQL, Oracle, DB2; - NoSQL: Redis, Memcached, SimpleDB; In my case, I enjoy working with small businesses and individual decision makers to provide architectural and custom business solutions that help my clients resolve mission-critical problems, grow their business, and improve their revenue stream and profitability.
    Featured Skill Groovy
    Twitter/X Bootstrap
    Asterisk
    J2EE
    JDBC
    Grails
    jQuery
    Hibernate
    Apache Groovy
    Spring Framework
    Java
  • $50 hourly
    • 5.0/5
    • (1 job)
    Over 2 decades of rich experience in the software industry where almost a decade was spent working in the United States for organizations like Circuitcity, Walmart, Disney etc. In India, he has leveraged his expertise in various capacities at Unisys, TCS, Infogain and Ericsson. Having witnessed and being a part of the dot-com boom (and bust), entrepreneurship bug found him pretty early in his career where he developed a product for Insurance Surveyors. This product boasted of over 1000 installations across the country before it was bought by a new entrant in the Indian Insurance sector. Since then, Abhay has shuttled between India and US working in various capacities such as Lead Architect, Program Manager, Account Manager with his last stint as leading the Program Management Office at Infogain Corp. Abhay has strong expertise in architecting very large scale ecommerce sites like Circuitcity and Walmart with annual revenue of over a billion dollars. A keen planner, strategist and implementer with demonstrated ability to translate new ideas into solutions and to manage key account relationships and large scale projects. Specialties: Comprehensive understanding of project management life cycle, Full-stack development, SOA, Groovy, Grails, Java, Javascript, Vue.js, NoSQL, RDBS, Mysql, MariaDB, Design Patterns, AWS, DevOps, Git.
    Featured Skill Groovy
    Design Analysis
    Design-to-Code
    JavaFX
    Architecture
    DevOps
    JavaScript
    Vue.js
    Java
    Grails
    Apache Groovy
  • $90 hourly
    • 5.0/5
    • (99 jobs)
    A coder with 12 years of experience in web development. I've worked on Java (6 to the latest), Grails (1.3.7 to latest), CakePHP 2/3/4, and PHP5, PHP7, and PHP8 having very good knowledge of HTML, Javascript, and its libraries (jQuery, Reactjs, ReactNative, Nodejs, etc), and CSS/SCSS. Worked in the team as well as individually. Very good at handling subversion and coordination with different version controls like SVN, and GIT. Qualities: 1. Excellent logical and problem-solving skills 2. Very good learner 3. Excellent communication skills 4. Helping nature 5. Scheduled and smart worker Languages, tools, and platforms: 1. Java (6 to latest) 2. Groovy on Grails (1.3.7 to latest) 3. PHP, CakePHP 2/3/4 4. JQuery, JQuery mobile, Bootstrap, Foundation CSS, D3.js, AngularJs, KnockoutJs, ReactJs, ReactNative 5. Google Apps Integration 6. Amazon Web Service (Ec2, RDS, Transcoder, S3, SQS, SNS, etc.) 7. Heroku 8. MySQL, Postgres Have experience in implementing functionality like: 1. Dynamic form builder 2. Reports generation 3. Business Intelligence applications 4. CRM applications 5. Firearms management applications 6. Calendar applications 7. Wedding management application 8. Dating websites 9. Google Marketplace Application integration 10. PayPal, Mollie, and other payment integration 11. Video Streaming
    Featured Skill Groovy
    XML Web Services
    JavaScript
    Google Maps API
    Apache Groovy
    Grails
    CodeIgniter
    PHP
    Java
    SQL
    Bitbucket
    CakePHP
    MySQL
    RESTful API
  • $40 hourly
    • 5.0/5
    • (48 jobs)
    I'm a highly motivated and experienced developer with over 10 years of expertise in Java, Groovy, and Grails. I possess a strong understanding of back-end development principles and a proven track record of delivering robust and scalable applications. Skills & Technologies: Java, Groovy, Javascript, Typescript Grails, Spring Boot, SparkJava RESTful APIs, Google APIs MySQL, PostgreSQL, MongoDB, MariaDB JavaScript, TypeScript, jQuery libraries, Bootstrap, W3CSS Git, GitHub, BitBucket IntelliJ IDEA, Postman JIRA, Asana, Trello AWS, Docker ChatGPT, Gemini, DeepSeek Additional Information: I'm proficient in utilizing various project management tools to ensure efficient collaboration and project delivery. I'm a quick learner and possess excellent problem-solving skills. What I offer: Strong technical expertise in Java, Groovy, and Grails. Ability to design, develop, and deploy back-end applications. Experience with various databases and APIs Familiarity with front-end technologies and cloud platforms Excellent communication and collaboration skills Why Choose Me? Over 10 years of experience in the industry Proven track record of delivering successful projects Dedicated, reliable, and results-oriented
    Featured Skill Groovy
    Apache Groovy
    Grails
    Bitbucket
    Hibernate
    MySQL
    Web Application
    RESTful API
    GitHub
    PostgreSQL
    Java
    Docker
    Git
    MongoDB
  • $25 hourly
    • 4.9/5
    • (55 jobs)
    Greetings! I am a seasoned Full-Stack Java Developer with over a decade of experience in crafting robust and scalable solutions using cutting-edge technologies. I specialize in Java frameworks such as Spring Boot and Grails, and I am well-versed in modern frontend technologies like Next.js, Tailwind CSS, and Bootstrap Skills: Programming Languages: Java, Groovy, PHP, Python Frameworks: Spring Boot, Grails, NextJS, Laravel, Django, Flask Database: MySQL, PostgreSQL, MongoDB, Oracle Web Technologies: HTML5, CSS3, JavaScript Version Control: Git, SVN, Mercurial Build Tools: Maven, Gradle Testing Frameworks: JUnit, TestNG, Spock Deployment: Docker, Jenkins Key Highlights: Extensive Experience: With a career spanning more than 10 years, I have successfully delivered a myriad of projects, showcasing my ability to adapt to evolving technologies. Spring Boot Mastery: Proficient in leveraging Spring Boot to develop microservices, RESTful APIs, and enterprise-level applications, ensuring optimum performance and scalability. Grails Proficiency: Adept at utilizing the Grails framework for rapid development, allowing for the creation of dynamic and feature-rich web applications. Frontend Expertise: Experienced in crafting engaging user interfaces using Next.js, Tailwind CSS, and Bootstrap, delivering seamless user experiences. Full-Stack Knowledge: Well-versed in both frontend and backend development, ensuring seamless integration and a holistic approach to project execution. Why Choose Me: Proven Track Record: I take pride in my track record of delivering projects on time and exceeding client expectations. Effective Communication: Clear and prompt communication is at the core of my work ethic, ensuring a smooth and transparent collaboration. Versatility: My expertise spans both frontend and backend development, allowing me to offer comprehensive solutions tailored to your project's needs. Client Satisfaction: My goal is not just to meet client requirements but to surpass them, leaving clients satisfied with the end result. Let's Discuss Your Project: If you are looking for a reliable and experienced Full-Stack Java Developer with expertise in Spring Boot, Grails, and modern frontend technologies, let's connect. I am eager to discuss your project requirements and contribute to its success.
    Featured Skill Groovy
    Network Administration
    Java
    Spring Boot
    Python
    PHP
    Web Development
    Amazon Web Services
    MySQL
    API Integration
    Apache Groovy
    SQL
    Grails
    Bootstrap
    GraphQL
    React
  • $75 hourly
    • 5.0/5
    • (104 jobs)
    As a seasoned Atlassian Consultant with over 10 years of experience, I am adept at handling a variety of Atlassian technologies, such as Jira, Confluence, Bitbucket, and Bamboo, in server, data centre, and cloud settings. My specialty is in the nexus of business and technology, where I offer a special fusion of strategic thinking and technological know-how. 🔧 Technical Proficiency: I am good at creating customized solutions with Atlassian's toolkit. I have practical expertise utilizing each tool to its fullest capacity to increase productivity and operational efficiency, from Jira & Script Runner development to Confluence collaboration settings, Bitbucket repository administration, and Bamboo continuous integration. 🔍 Analytical & Detail-Oriented: I can proactively detect problems and develop creative solutions thanks to my analytical skills. I carefully set up processes, make unique fields, and create user-friendly dashboards that enable groups to work together harmoniously and produce outstanding outcomes. 🛠️ How I Can Add Value: Complete Atlassian Support: I provide end-to-end support for the whole Atlassian ecosystem, including Jira for agile project management, Confluence for collaborative documentation, Bitbucket for version control, and Bamboo for automated builds. Efficient Configurations: I specialize in fine-tuning configurations, ensuring optimal performance on diverse platforms including Linux, Windows, AWS, Docker, and Azure. Customization & Automation: I turn Atlassian products into customized solutions that meet your particular company needs, from creating custom plugins and putting automation rules into place to setting up complex permissions and alerting systems. Seamless Integration: I make it possible for Atlassian products and third-party apps to integrate seamlessly, creating a unified online space where data moves freely and improving decision-making and teamwork. 🌟 Why Work With Me? I am not just a consultant, I am your dedicated partner in maximizing the capabilities of Atlassian tools. My commitment to innovation, coupled with my in-depth knowledge of the Atlassian ecosystem, ensures your projects are not just successful but transformative. Let's collaborate to redefine your digital journey with Atlassian. Connect with me, and let's embark on this transformative experience together Certifications: ✅ Atlassian Certified Master ✅ Certified Jira Cloud Administrator (ACP-120) ✅ Certified Jira Service Desk Administrator(ACP-400) ✅ Certified JIRA Administrator (ACP-100, ACP-JA) ✅ Certified JIRA Project Administrator (ACP-600, ACP-JPA) ✅ Atlassian Certified in Managing Jira Cloud Projects (ACP-MJCP, ACP620) ✅ ISTQB Certified Test Manager ✅ Microsoft Certified Professional ✅ ITIL V3 Certified ✅ Certified Professional Scrum Master ✅ Certified Azure Solution Architect ✅ Certified AWS practitioner ✅ JAVA SE8 Programmer Search Keywords Jira Consultant, Atlassian JIRA Consultant, Atlassian Confluence, Bitbucket, Jira Expert, Confluence Expert, Jira SME, Atlassian SME, Confluence SME, Jira scripting, Jira Developer, Jira plugin, Jira addon, Jira add-on, Jira Agile, Jira configuration, jira workflows, Jira permissions, Jira architect, Jira professional, Jira Consultant, Jira migration, Jira help, Jira tutor, Jira mentor, Jira trainer, Jira administration, Jira administrator, Jira support, Jira technical support, Jira Align, Jira consultancy, Jira architect, Senior Jira Consultant, Jira integration expert
    Featured Skill Groovy
    Automated Testing
    Training
    Migration
    ServiceNow
    Jira
    Test Automation Framework
    Agile Project Management
    RESTful API
    Apache Groovy
    Database
    Agile Software Development
    Atlassian Confluence
    Atlassian Crowd
    Project Workflows
    Scripts & Utilities
    System Administration
  • $10 hourly
    • 4.5/5
    • (2 jobs)
    An expert Java, Python developer with Masters degree in Natural language processing (NLP) & Machine Learning, having 6+ years of software development experience. What I do: - Java development using Spring/Spring MVC/Spring Boot. - Write Technical focused articles - Develop Python scripts - Teach Java, Python, Spring, and SQL courses 1on1 In ML & NLP area: - Text classification, Tokenization & Noise removal (Preprocessing). - POS Tagging, Stemming & Lemmatization. - Text clustering by using word embedding. - Machine translation & transliteration (text-to-text). - Information Extraction and Named Entity Recognition. - Sentiment Analysis & Legal Document Analysis. - Legal Document Analysis. - Phrase Matching and Vocabulary Hard skills: - Development: Python, Java, Groovy, Spring MVC, VueJS, SQL - NLP: NLTK, CoreNLP, OpenNLP - Machine Learning: NumPy, SciPy, Scikit-learn, Weka - Deep Learning: PyTorch - DBA: MySQL, MongoDB Throughout my career, I have effectively worked in both independent and collaborative environments.
    Featured Skill Groovy
    Apache Groovy
    Full-Stack Development
    Web Development
    GraphQL
    RESTful API
    Vue.js
    Technical Writing
    Blog Writing
    Spring Framework
    Machine Learning
    Java
    Python
  • $50 hourly
    • 5.0/5
    • (104 jobs)
    ⭐ Atlassian © ACM, ACP-100, ACP-120, ACP-300, ACP-400, ACP-420, ACP-600, ACP-620 ⭐ Scrum.org © PSM I, PSPO I ⭐ 8+ yrs ■ High availability and quick response ⭐ 100% 5★ testimonial ⬜ ATLASSIAN © Atlassian Certified Master 🎖 ACP-100 ■ Certified Jira Administrator 🎖 ACP-120 ■ Certified Jira Cloud Administrator 🎖 ACP-300 ■ Certified in Agile Development with Jira Software 🎖 ACP-400 ■ Certified in Jira Service Desk Administration 🎖 ACP-420 ■ Certified in Managing Jira Service Projects for Cloud 🎖 ACP-600 ■ Certified Jira Project Administration 🎖 ACP-620 ■ Certified in Managing Jira Cloud Projects ⬜ SCRUM.ORG © 🎖 PSM 1 ■ Professional Scrum Master 1 🎖 PSPO 1 ■ Professional Product Owner 1 During my past years, I have worked with the Atlassian suite as a: ✅ Business User ✅ Software Developer (Mobile Application) ✅ Project Manager ✅ Atlassian Plugins Developer ✅ Atlassian Administrator ✅ Atlassian Custom Integration (ScriptRunner, Groovy + Python Scripting) ✅ Agile/SCRUM Master I am your BEST value you are looking for !
    Featured Skill Groovy
    Marketing Automation
    CRM Automation
    HubSpot
    Atlassian GreenHopper
    Jira
    No-Code Development
    Airtable
    Low-Code Development
    Zapier
    GitHub
    Python
    ITIL
    Atlassian Confluence
    GitLab
  • $16 hourly
    • 4.5/5
    • (3 jobs)
    Software engineer with over 13 years of experience. I specialize in developing web applications, most of them hosted in the cloud, using providers like AWS. I also really like relational database design. I have mostly worked with open source web application frameworks, based on Java, such as Grails and Spring Boot. I have experience migrating large amounts of data between warehouses. I have worked with PBX telephone systems, and I have provided support to internal clients of the organizations I have worked for. I am also a fan of Excel. I am a very committed and responsible person, organized, proactive and honest, who prioritizes the satisfaction of her clients.
    Featured Skill Groovy
    SQL
    MySQL
    Asterisk
    PBX
    Spring Boot
    Scrum
    PostgreSQL
    JavaScript
    jQuery
    Apache Groovy
    Grails
    Java
  • $48 hourly
    • 5.0/5
    • (55 jobs)
    I am Atlassian Certified Jira specialist from Ukraine with 15+ years of practice and 3500+ hours of Jira Administration. I help clients make the most use of Jira Software | Service Desk (Cloud and Server). My strengths are automation using Script Runner and Automation add-ons, as well as Jira integrations and FORGE App Development. Achievements ⭐️ Atlassian Certified in Managing Jira Projects for Cloud ⭐️ Atlassian Certified Jira Administrator for Cloud ⭐️ 20+ clients (10 to 500 users), doing fixed price projects and providing longterm Jira support ⭐️ 3500+ hours of Jira administration ⭐️ 16+ years of working experience as team lead and project/product manager ⭐️ led 16 workshops on different Jira topics ⭐️ speaker at IAMPM courses ⭐️ Forge developer ⭐️ developed MS Project plugin for JIRA integration I can help you with 🛠 configure custom workflows, custom fields, screens, permissions and notifications settings 🛠 automate processes and repetitive tasks (Automation add-on and groovy scripting with ScriptRunner add-ons) 🛠 create advanced custom reports of any complexity for Jira Server/DC (inside JIRA or in 3rd-party BI solutions and reporting services) 🛠 develop MS Project addons for integrations with other tools (like Jira) 🛠 analyze JIRA Server data using SQL working directly with database. Such a practice helps clients to get quick insights from Jira data and to find data inconsistencies 🛠 custom development of API’s, integrations with Tempo and Table Grid Editor API 🛠 help you to decide on the best suitable and powerful enough add-ons 🛠 configure third-party add-ons (Tempo Timesheet, Tempo Planner, EasyBI, Table Grid Editor, Rich Filters, SIL, Structure, Big Picture) 🛠 audit your instance, point to the bottlenecks, suggest improvements and implement an instance cleanup 🛠 provide a consultancy service or ongoing support During my career, I've worked with the Atlassian tools as a: 🔥 Project/Product/Program Manager 🔥 Team Lead 🔥 Jira Administrator 🔥 CMMI Appraisal Team member 🔥 Software Developer (Oracle and MS SQL Server DB Developer) This experience helps me understand business processes for different project roles My favorite Jira add-ons are ScriptRunner, MyGroovy and EasyBI. These add-ons allow making complex automations, integrations and data analyses with no limits. My approach is to be a business analyst before doing any task. At the beginning, I try to understand client needs and requirements. In most cases, I develop a prototype or simulate the case in my test environment. Then I suggest effective ways to accomplish the task based on my experience and knowledge of best practices. I’m organized, committed to quality, process and result oriented If this is something I can help you with, please reach out! Contact me for any Jira consultation task
    Featured Skill Groovy
    SQL Server Integration Services
    SQL Server Reporting Services
    Microsoft SQL SSAS
    Project Management
    Microsoft Project
    Atlassian Confluence
    Jira
    API Integration
    Apache Groovy
    Microsoft Power BI
    SQL
  • $50 hourly
    • 5.0/5
    • (6 jobs)
    Hi, my name is Almas Abdrazak. My experience in IT area is over 6 years. I am a Senior Backend Developer specialized in Java backend technologies, who have worked with microservice architectures, streaming apps, SQL databases and CI/CD pipelines. I'm interested in Database Theory and I'm a big fun of Postgres and Cassandra. In a free time I contribute to opensource, write my own projects and learn Japanese.
    Featured Skill Groovy
    PostGIS
    Apache Groovy
    Hibernate
    NGINX
    Docker
    Java
    Golang
    PostgreSQL Programming
    Linux System Administration
  • $40 hourly
    • 4.9/5
    • (24 jobs)
    Experience in Java (J2EE) development and product architecture for 15 years, Have worked on Hibernate, Spring (MVC, AOP, Transaction management), JSP/Servlet, Guice, Jersey, JUnit, Tomcat, Jetty, Ajax, Grizzly, JQuery, Mysql, Oracle, MongoDB and DynamoDB I have substantial background delivering large scale, mission critical, real-time and low latency projects on time. I have worked as a Technical Architect, Java Team Lead and Senior Java developer. I believe that one of my strongest points is ability to balance long-term strategic development with timely delivery of tactical solutions. I like to work from the inception phase of the product and take it to the final completion. I am pretty flexible with respect to working hours.
    Featured Skill Groovy
    Core Java
    Amazon S3
    Amazon EC2
    API Development
    RESTful Architecture
    Spring Boot
    Google Guice
    React
    Quartz
    MongoDB
  • $30 hourly
    • 5.0/5
    • (9 jobs)
    Passionate programmer, ever hungry to learn and earn. I have a CAN DO attitude and i am a dedicated learner. EXPERIENCE : 9 Years Backend Skills : * Java * Grails * Node * Groovy * Spring * Hibernate * AWS Frontend Skills : * Javascript * React * Redux * AngularJs * HighCharts * Html * Sass, Less Databases : * Mysql * Mongo * Elastic Search * Snowflake
    Featured Skill Groovy
    Agile Software Development
    Elasticsearch
    RESTful API
    Software Architecture & Design
    Web Development
    React
    AngularJS
    Grails
    JavaScript
    Java
    HTML5
    MongoDB
    Spring Framework
    AJAX
  • $90 hourly
    • 5.0/5
    • (3 jobs)
    I love technology and learning new languages, frameworks and platforms. I've been an I.T. professional for 25 years and was a computer enthusiast/programmer before I made it a career. I have worked as a consultant on many large & complex projects at Fortune 500 companies. Although my experience has been large corporate systems (ERP, e.g. Oracle PeopleSoft), I have found that I want to be more involved in startup projects using modern tools and techniques. To keep current with technology trends, I often work on side projects, some of which never see the light of day and others that have a significant user base on the public web.
    Featured Skill Groovy
    Linux System Administration
    PeopleCode
    Amazon Web Services
    MySQL
    Vue.js
    Grails
    Java
    SQL
    Apache Groovy
    jQuery
  • $20 hourly
    • 4.9/5
    • (47 jobs)
    I’m a dedicated Full Stack Developer with a strong passion for creating innovative and scalable solutions. My expertise spans across Frontend and Backend Development, UI/UX Design, DevOps, Server Hosting, and Project Management. I thrive on bringing ideas to life, ensuring that each project not only meets but exceeds client expectations. I specialize in modernizing enterprise applications by revitalizing legacy systems with the latest open-source platforms and frameworks. My approach to development is holistic, involving ideation, design, implementation, deployment, and continuous improvement. Skills & Expertise: - Frontend: TypeScript, HTML, CSS, JavaScript, React, Next.js, Redux - Design Systems: Tailwind CSS, Material UI (MUI), Bootstrap, Ant Design - Backend: NodeJS, NestJS, Python, TensorFlow, .NET Core - Backend Frameworks: Express.js, Django, Flask, ASP.NET - Databases: MongoDB, PostgreSQL, MySQL, NoSQL - Development: Web & Mobile Applications, Custom Project Development - API Development: RESTful, GraphQL, Axios - Design & Prototyping: Figma, Adobe XD, Sketch - Testing & Debugging: Jest, Mocha, PyTest, Selenium - Deployment & Hosting: AWS, Azure, Google Cloud, Docker, Kubernetes - Version Control: Git, GitHub, GitLab, Bitbucket - Task Management: Jira, Slack, Trello, Asana, Notion - AI Integration: OpenAI, ChatGPT, Langchain, Fine-tuning, Knowledge Base Training Why Work with Me? - Over 7 years of experience in Full Stack Development - Up-to-date with the latest industry trends and technologies - Proven history of delivering projects on time and within budget - Strong communicator who ensures smooth collaboration - Committed to building scalable, future-proof solutions Interpersonal Skills: - Clear and confident communication - Strong analytical and problem-solving abilities - Detail-oriented with a focus on quality - Effective team leadership and project management - Always eager to learn and grow My top priority is getting the project finished on time with quality, well structured and easy maintainable code. I'm trying to bring all my work to perfection. If that is what you're searching, then feel free to contact me with any idea.
    Featured Skill Groovy
    WordPress
    Hugging Face
    LangChain
    Generative AI
    App Development
    Web Development
    .NET Core
    SaaS
    AngularJS
    React
    Dialogflow API
    Node.js
    Amazon Web Services
    OpenAI Embeddings
    Python
  • $225 hourly
    • 5.0/5
    • (10 jobs)
    As a skilled data engineer, developer, and biomedical engineer, I have spent the last several years honing my expertise to offer top-tier services to clients. My specialty is data engineering, including data warehousing, ETL optimization, data modeling, data governance, and data visualization. I also have a strong background in machine learning and MLOps. I have several professional certifications - including the Google Cloud Professional Data Engineering certification and the AWS Machine Learning specialty certification. This has allowed me to develop a command of a wide range of technologies, including Hadoop, DataBricks, Docker, Terraform, Apache Spark, Collibra, big data, business intelligence tools, cloud computing (AWS, GCP, and Azure), TensorFlow, Keras, and Kubernetes. My preferred languages for data projects are Python, R, SQL, Rust, and Java. I'm also proficient in several other programming languages for full-stack development including JavaScript, TypeScript, HTML, and CSS, among others. I've included examples of recent projects in my portfolio to showcase my capabilities. Recently, I completed two competitive fellowships: the DS4 Data Engineering Fellowship and the Aspen Tech Hub Tech Policy Fellowship. The Aspen Tech Hub Tech Policy Fellowship focused on training expert tech leaders in public policy and regulations in San Francisco. During this fellowship, I learned about outputs like memos, briefs, whitepapers, action plans, and presented real technical solutions to government and institutional stakeholders. During the DS4 Data Engineering Fellowship, I worked with over 32 million collective data records from the Center for Medicaid and Medicare Open Payment, Merit-Based Incentive Payment System (MIPS) Final Scores, and World Health Organization Global Healthcare Expenditures data. This experience led my team to be awarded the distinguished project award and receiving an honors certificate. To optimize data storage and processing efficiency, I implemented a strategic approach by converting raw files into Parquet format, a columnar storage file format. By leveraging the Snappy compression algorithm, I significantly reduced the memory needed to store the data by more than 83%. This transformation not only streamlined the data retrieval process but also enhanced the overall performance of data processing pipelines. My role involved developing sophisticated data models, designing efficient pipelines, and leveraging various tools such as PySpark, PyArrow, Pandas, Python, Airflow, and an AWS PostgreSQL instance. As a medical device specialist, I have a wealth of experience in regulatory and quality control, as well as all areas of the product life cycle. I have worked on class 1, class 2, and class 3 devices in several areas, including software applications, dermatological, diagnostic biotech, diagnostic radiology, orthopedic, cardiac, urology, and physical therapy devices. I am skilled in completing regulatory documents such as design history folders, risk assessments, 510(k), DIOVV, quality plans, and verification/validation testing, and I have included examples of these documents and public policy papers I have written in my portfolio. I offer services in data engineering, machine learning, medical devices, and overall software development, and I am confident that my skills and experience can deliver results that exceed your expectations. Please feel free to contact me to discuss your project and how I can help you achieve your goals. Let's connect and make your project a success.
    Featured Skill Groovy
    Dashboard
    Data Visualization
    Data Mining
    ETL
    API Development
    Compliance Consultation
    Rust
    HIPAA
    Solidity
    Medical Device
    Blockchain
    Data Engineering
    Machine Learning
    Data Science
    SQL
  • $60 hourly
    • 4.9/5
    • (752 jobs)
    Scott has worked on several sites including The Daily Exposition, The Arcade Corner, Beer Money Funds. As well as his own website SERT Media which focuses on all of his web development work. Scott specializes in website optimization, malware removal, hosting, site migration, and SEO. He uses CSS, JavaScript, HTML, PHP, and WordPress. When Scott is not working he is often found traveling with his girlfriend, working on his own websites, or reading up on the latest scientific discoveries.
    Featured Skill Groovy
    Website Security
    Page Speed Optimization
    SEO Audit
    Genesis Framework
    HTML
    Business with 1-9 Employees
    Divi
    PHP
    CSS
    JavaScript
    CSS 3
    WordPress
    Elementor
    Search Engine Optimization
  • $26 hourly
    • 4.7/5
    • (18 jobs)
    🔵 Weekly Loom Reports for all Clients 🔵 Top Rated for Full-Stack Web Development 🔵 >85% Job Success Score Hi - I build and integrate business solutions with the GPT-3.5, AutoGPT, Pinecone and DALL-E model. Past / Current clients have used it to: - build custom knowledge bases for their website - generate low-carb recipes based on user input ingredients - train new models based on GPT-3 - create a "pro-version" of Siri / Google Assistant by adding voice capabilities to chatGPT. --- With that, if you have a business idea / an MVP and would like to further develop with chatGPT / DALL-E, feel free to reach out! Companies like Lensa are using AI to make millions per day, so we know that demand is very high across the world. Users / Businesses WANT your app!! So, let's build your idea up and share it with the world - together! --- Since I started programming, I focused on: Languages: - Python - Dart - Java - Geb Frameworks: - Tensorflow (Machine Learning) - SpaCy (AI Model Training) - Flutter (iOS & Android App Development) - Flask (Web Applications) - Django (Web Applications) - Pandas (Data Science) - Selenium (Web Automation) - Groovy (Web Automation) - Beautiful Soup (Data Scraping) - Scrapy (Data Scraping) Backend: - Firebase - Firestore - MySQL Tools: - Amazon Web Services (Lambda, RDS, ECS, ECR) - Docker --- Past Projects: - Real Estate Rental App: Allows Users to schedule viewings with Agents. By scraping their data from an existing Telegram group, it significantly reduces the friction to migrate to the app platform. -> Used Flutter, Firebase, Selenium, Python. - Facebook Ads Automation Web App: niched down on large interest groups to come out with Affinity Audiences. Calls the Facebook API to run ads after. -> Used Selenium, Python, Docker, AWS, and Flutter. - App Store Optimization App: helping developers rank higher in search results so that the probability of monetizing gets higher. -> Used Selenium, Python, Docker, AWS, and Flutter. - Coverage Automation for Telekom Malaysia: automated Coverage Checking of Internet Packages. Cut employee costs by 30%. -> Used Selenium, Docker, AWS, and Python. - Scraper for Lead Gen: scraping usernames from YouTube, Steam, and Google Play Store to form email variations, and return validated emails. -> Used Scrapy, Selenium, BeautifulSoup, and Python. - Dinosaur Rogue-like Game: a simple rogue-like game just like "A Dark Room". -> Used Java & the game driver of Star Wars. - Scraper for Job Listing: to recommend relevant job listings to web visitors. -> Used Groovy & Geb. --- I always love seeing my code deployed in applications that help users - all over the world. It just makes me feel like I built something that's worthwhile. With that, feel free to reach out if this meets your needs!! - hans.
    Featured Skill Groovy
    API Development
    Firebase
    Product Development
    API Integration
    Hybrid App Development
    Cloud Database
    Mobile App Development
    Flutter
    App Development
    Full-Stack Development
    MySQL
    Amazon Web Services
    Dart
    Python
  • $100 hourly
    • 4.5/5
    • (312 jobs)
    ** Ranked in Top 100 Developers in the world! ** Rated as Top 1% in Upwork Tests - In-depth knowledge of Yii, Flutter, Kotlin, PHP, SWIFT, and React JS. - Global experience in AI services, Automation, and Machine learning, chatbots, OpenCV, FreePBX 1) Mobile App development * iOS (Swift/ Objective-C) * Android (Java/ Kotlin) * Hybrid (Flutter/ React) 2) Website development * Web Yii , Laravel * Python, Nodejs 3) Cloud computing * AWS , S3, Azure * Google cloud platforms * Heroku * Firebase 4) Database Management * MySQL * MongoDB PostgreSQL 5) FreePBX * VOIP/SIP 6) Others: Rust , OpenCV, RASA, Chatbot, Tensorflow, Top Business Category that we have worked for: • Internet of Things (IoT) websites and apps • Medical and Health websites and apps • CRM/ERP solutions • Taxi Booking/Ride-Sharing websites and apps • Food Ordering apps • Social Media apps and websites • Real Estate, Marketplace website, and apps • E-commerce websites and apps • On-Demand Education websites and apps • Event Booking websites and apps • Classified websites and apps • Chat Web and Mobile Applications • Logistics and Transport Applications • Documentation / Prototyping/QA plus submission on Google and Apple store Currently, I am leading a team of 300+ developers. If it sounds interesting to you, let's connect and discuss your project requirements in detail!
    Featured Skill Groovy
    MERN Stack
    Native App
    iOS
    Agile Project Management
    phpMyAdmin
    Yii2
    ChatGPT
    Laravel
    Node.js
    Angular
    React Native
    Android App Development
    Flutter
    Python
    PHP
  • $49 hourly
    • 5.0/5
    • (13 jobs)
    I am a highly accomplished and top-rated Plus Software Architect with over 9 years of experience in industries such as E-commerce, Telecommunication, Travel, and Education. With a 100% job success ratio and fluent English communication skills, I excel at architecting scalable, efficient, and innovative solutions, and consistently deliver high-quality results across complex software projects. Technical Skills: - Java: Proficient in Java 7, 8, and 11, utilizing it extensively for developing robust applications. - Spring Framework: Experienced in leveraging the power of Spring Framework, Microservices, and Spring Cloud for building scalable and efficient solutions. - Messaging Technologies: Skilled in implementing asynchronous messaging using Azure Service Bus, Apache Kafka, RabbitMQ, and Netflix Conductor, enabling seamless communication between components. - Cloud Technologies: Experienced in working with AWS EC2, Amazon S3, Amazon Rout53, Amazon Redshift, and utilizing ThoughtSpot analytics. Also proficient in ELK Stack, Docker, and Docker Swarm for containerization and deployment. - Front-end Development: Hands-on experience with AngularJS and Angular 8, ensuring engaging and responsive user interfaces. - Database Technologies: Well-versed in working with various databases including Oracle, MySQL, Postgres, and MongoDB. Proficient in designing and optimizing stored procedures for efficient data retrieval and manipulation. - Web Technologies: Proficient in JWT, JavaScript, CSS, jQuery, HTML5, and Bootstrap, enabling the development of modern and visually appealing web applications. - Development Tools: Experienced in using tools such as Maven, Apache Tomcat, Gradle, and version control systems like Git and TFS, ensuring streamlined and collaborative development processes. - CI/CD and Agile Methodologies: Skilled in implementing CI/CD pipelines using Jenkins, Jira, Confluence, Bitbucket, and Agile Scrum, facilitating continuous integration, delivery, and efficient project management. - Android Development: Proficient in Android application development, creating native mobile experiences for Android users. - Familiar Technologies: Familiar with Node.js, MongoDB, and Kubernetes, keeping up-to-date with emerging technologies and trends in the industry. With my extensive technical skills and experience, I am well-equipped to contribute to complex software projects, drive innovation, and deliver high-quality solutions.
    Featured Skill Groovy
    CI/CD
    Jenkins
    MongoDB
    Hibernate
    Kubernetes
    Mockito
    Unit Testing
    RabbitMQ
    JavaScript
    Dropwizard
    Docker
    Node.js
    Apache Kafka
    Angular
    Spring Boot
    Microservice
    Spring Framework
    AngularJS
    Java
  • $45 hourly
    • 4.7/5
    • (22 jobs)
    🏆 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐉𝐚𝐯𝐚 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐀𝐈-𝐀𝐮𝐠𝐦𝐞𝐧𝐭𝐞𝐝 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐟𝐨𝐫 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐇𝐢𝐠𝐡-𝐈𝐦𝐩𝐚𝐜𝐭 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 👋 A𝐛o𝐮t M𝐞: I’m a Full-Stack Java Developer with 10+ years of hands-on experience in crafting secure, scalable, and performance-driven applications. My edge? Combining expert-level coding with AI-powered development tools to accelerate delivery without compromising on quality. As a top-rated Upwork freelancer, I help startups and enterprises turn ambitious ideas into successful software—faster, smarter, and more efficiently. ⚙️ 𝗔𝗜-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄: I seamlessly integrate AI tools into my day-to-day development to optimize output and save time: 🤖 Cursor.AI – Context-aware IDE assistant for rapid debugging and clean refactoring 🧠 GitHub Copilot – Speeds up function development and automates repetitive code 🚀 Codeium – Offers smart completions and helps maintain clean, DRY code 💡 Tabnine – Provides real-time intelligent code suggestions 🛡️ Snyk & SonarQube – Automated scanning and code quality enforcement for secure apps These tools allow me to focus more on architecture, performance, and delivering real value—while AI handles the repetitive heavy lifting. 🛠️ 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀 𝗦𝗻𝗮𝗽𝘀𝗵𝗼𝘁: Frontend: ReactJS, AngularJS, Vue.js – for sleek, responsive UIs Backend: Java, Spring Boot, Firebase – robust and scalable server-side logic Database: MySQL, PostgreSQL – efficient data modeling and management Cloud: AWS Certified – cloud-native architecture, DevOps, and CI/CD pipelines Workflow: Jenkins, Docker, GitHub Actions – automation, testing & deployment at scale 🌟 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: ⚡ Faster Delivery with AI: Smart tooling accelerates feature rollout and bug fixes 🎯 Senior Expertise: Solutions designed to scale and last 🤝 Collaborative & Transparent: Clear communication, regular updates, long-term focus 🔄 Always Evolving: I stay ahead of the curve with the latest in tech and AI 📈 𝗟𝗲𝘁’𝘀 𝗕𝘂𝗶𝗹𝗱 𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗔𝗺𝗮𝘇𝗶𝗻𝗴: If you're looking for a dependable full-stack expert who leverages AI for productivity and precision—let's chat. I’m excited to hear about your project and how I can bring it to life. 📩 𝗥𝗲𝗮𝗰𝗵 𝗼𝘂𝘁 𝘁𝗼𝗱𝗮𝘆 𝗮𝗻𝗱 𝗹𝗲𝘁’𝘀 𝗺𝗮𝗸𝗲 𝗶𝘁 𝗵𝗮𝗽𝗽𝗲𝗻!
    Featured Skill Groovy
    Unit Testing
    Spring Boot
    Spring Framework
    JavaScript
    React
    API Integration
    MongoDB
    Angular
    SaaS
    Java
    Microservice
    Hibernate
    Amazon Web Services
    J2EE
    API Development
  • $55 hourly
    • 4.7/5
    • (11 jobs)
    As a software developer for the last 13+ years, I have helped many clients develop software applications based on desktop, web-based (front-end and back-end APIs), and mobile (front-end and backend APIs) platforms. I developed most of the applications in Java-based technologies and Spring Framework, Microservices, Struts2, JavaFX, and front end as HTML5/CSS3/JavaScript/ES6/JQuery and ReactJS I have also completed jobs related to the configuration and customization of ERP solutions like Ofbiz and Moqui In mobile application development, I am more comfortable in developing mobile applications using React Native. I developed applications in various domains by using the most popular databases, including Oracle, MySql, SQL Server, Postgres, etc. I am good at developing Oracle PL/SQL code for enterprise applications. Project management and code version control tools are essential for the smooth progress of the project, and I am comfortable in Git, JIRA, Redmine, Bugzilla, Basecamp, and Trello, etc. During this journey from developer to architect, I have enjoyed every moment of it and learned how to develop scalable and robust applications and recently have invested in learning Test Automation, Kubernetes, Mockito, and integrations containing Zapier, Quickbooks, and Zoho, etc I believe a detailed discussion at the project's initial stage but quick and regular communication during project development is key to success. Availability: 30-35 hours/week. Excellent communication skills. Thanks Harkomal Singh
    Featured Skill Groovy
    Oracle PLSQL
    Microsoft Azure
    Spring Framework
    Hibernate
    Spring Boot
    Java
    Django
    Python
  • $45 hourly
    • 4.9/5
    • (146 jobs)
    I have 14+ years of experience in web development, mobile development application. I have done many works with PHP and Java for web application especially with different MVC framework like CakePHP, Grails, Laravel, Ruby on Rails, CodeIgniter, Zend, Symfony, Yii and different CMS like concrete5, moodle, modX. I am highly experienced in any MVC Framework even with different programming languages. I am also internationally certified on Java. I have done android game application and android home widget application in Java. I have experience with many programming language like Python especially Pylons and Django web application, Ruby especially Ruby on Rails web application, Java with Grails including script languages such as ajax, json, javascript, xml, rss, xslt and flex for active script language and with content management systems. I have been using sql server, mysql, oracle, mongodb and sqlite3 for database. I have participated on National and International project. I have masters on Software Engineering.
    Featured Skill Groovy
    Concrete5 CMS
    RESTful API
    MongoDB
    PostgreSQL
    Spring Boot
    Java
    React
    Ruby on Rails
    PHP
    Python
    Grails
    Laravel
    MySQL
    CakePHP
    CodeIgniter
  • $55 hourly
    • 4.9/5
    • (160 jobs)
    ⭐⭐⭐ "Unni did excellent work! Trustworthy and capable. Great communication" ⭐⭐⭐ ⭐⭐⭐"Am writing this review to express my deep gratitude and appreciation for Unni's remarkable contribution to our project. Unni has demonstrated an exceptional ability in managing a complex integration task, a challenge that had previously stymied the efforts of five other individuals". ⭐⭐⭐ ⭐ I am senior developer specializing in Back-End and Cloud development. 👑 24 years of professional application development experience ✅ 150 ➕ Jobs ✅ 150 ➕ Reviews ✅ 3000 ➕Hours I have worked with ⭐High Profile clients⭐ in my Career which I have listed some of them below: ✅ FirstTennessee (Fortune 500) ✅ Amex (Fortune 500) ✅ EDB Norway ✅ ICICI Bank My core expertise and experience are: ✅ Android Application development ✅ Web development using Java 8, Spring Boot framework, JavaScript, HTML 5 ✅ Back end development with Java 8, Spring Boot frame work ✅ REST API development using Spring Boot ✅ Desktop development using Swing and JavaFX ✅ Micro services with Spring Boot ✅ Experience in Graph algorithms ✅ Bitcoin and Block chain development using Bitcoinj frame work ✅ Eclipse RCP development ✅ Open source application modification and development ✅ ChatGPT ✅ Java - 12+ years ✅ Java 8 - 5 years ✅ JavaScript - 5+ years ✅ Spring Boot - 3 + years ✅ Spring Framework - 3 + years ✅ React ✅ GraphQL ✅ AWS ✅ AWS Lambda ✅ Cloud Development ✅ AWS Amplify ✅ Aws AppSync ✅ DynamoDB ✅ Quarkus framework ✅ Micronaut ✅ CI/CD ✅ Android - 2 + years ✅ Spring Security - 2+ years ✅ WebRTC , WebSocket - 2+ years ✅ Python - 1+ year ✅ Node.js - 1 + year ✅ Play Frame work - 1 year ✅ GIS Development - 1 year I would like to go the extra mile to meet customer expectations for every project I am doing with 100% quality. I am looking for long-term association with clients to get complete benefits and am interested in achieving their business objectives and goals.
    Featured Skill Groovy
    Apache Kafka
    API Development
    Micronaut
    Spring Security
    Spring Boot
    Core Java
    Apache Maven
    Spring Framework
    GraphQL
    Android
    Android App Development
    Python
    Firebase
    Java
    JavaScript
  • $20 hourly
    • 5.0/5
    • (11 jobs)
    🚀 Full-Stack Developer | Node.js | Laravel | AWS | Vue.js | Next.js | GraphQL Hi, I'm Vinay S., a dedicated Full-Stack Developer with 6+ years of experience in building high-performance, scalable, and secure web applications. I specialize in Node.js, Laravel, AWS, Vue.js, Next.js, Angular.js, GraphQL, and TypeScript, delivering top-notch solutions tailored to business needs. I have successfully completed 50+ projects across various industries, helping businesses build robust backend architectures, modern frontend applications, and scalable cloud solutions. 💡 Why Work With Me? ✅ Strong expertise in Backend & API Development using Node.js, Laravel, and GraphQL ✅ Scalable Cloud Solutions with AWS (Lambda, Cognito, EC2, S3, RDS, CloudFormation, Kubernetes) ✅ Microservices & Serverless Architecture for high-performance applications ✅ Modern Frontend Development using Vue.js, Angular.js, React.js, Next.js, and TypeScript ✅ Database Management with MongoDB, MySQL, PostgreSQL ✅ Real-time applications with Socket.io, WebSockets ✅ Secure Authentication & Authorization using JWT, OAuth, Firebase Auth ✅ Third-party API integrations (Twilio, Stripe, PayPal and manymore) 💻 Tech Stack & Skills: 🔹 Backend: Node.js, Laravel, CodeIgniter, CakePHP, Core PHP 🔹 Frontend: Vue.js, Angular.js, React.js, Next.js, TypeScript, JavaScript, jQuery 🔹 Databases: MongoDB, MySQL, PostgreSQL 🔹 Cloud & DevOps: AWS (Lambda, S3, RDS, EC2, Cognito, CloudFormation), Kubernetes, Docker 🔹 Other Technologies: GraphQL, RESTful APIs, Microservices, Serverless, OAuth, WebSockets, Socket.io Let’s Build Something Great Together! I'm committed to delivering high-quality, scalable, and secure applications while ensuring long-term client satisfaction. Whether you need a custom web app, API development, or cloud-based solution, I’m ready to help! 📩 Available for full-time/part-time projects & long-term collaborations. Looking forward to working with you! Best Regards, Vinay S.
    Featured Skill Groovy
    AWS Lambda
    Web Development
    RESTful API
    RESTful Architecture
    HTML
    Vue.js
    Angular
    React
    Node.js
    HTML5
    CakePHP
    CodeIgniter
    PHP
    Laravel
    Custom PHP
  • $15 hourly
    • 4.7/5
    • (23 jobs)
    Learning and implementing new technologies is my passion. Developing reusable code, library/frameworks joys me too much than any other things. I have been in web and software development for about 5 years. During this period I worked on lots of small to big projects and got expertise myself on various server side, client side and desktop technologies like HTML, CSS, JavaScript, jQuery, AJAX, Bootstrap, AngularJS, JSP, JSTL, Spring MVC, Grails, PHP, JavaFX, Swing etc. I am also expert in various database technologies like SQL, PLSQL, Oracle, MySQL, Postgres. Configuring server and application deployment on Apache Tomcat, Apache, Digital Ocean are also in my expertise list.
    Featured Skill Groovy
    MySQL Programming
    Amazon EC2
    Oracle Database
    JavaScript
    Grails
    Laravel
    JasperReports
    Git
    SQL
    Database
    PHP
    Vue.js
  • $50 hourly
    • 4.0/5
    • (39 jobs)
    Shubham Agarwal, a seasoned software engineer and entrepreneur with 10+years of experience! 🚀 At TechlyCodes, we are passionate about empowering businesses with technology that drives growth with a unique and deliberate approach to IT solutions, specifically focused on ERP implementations. Here's what sets us apart: 🏆Affordable and Tailored Solutions: We understand every business is unique. That's why we work closely with you to design solutions that meet your specific needs, budget, and service requirements. 🏆NetSuite Expertise: We are NetSuite champions, believing it's the best ERP tool for growing businesses. We offer a comprehensive suite of services including implementation, customization, administration, integration, and optimization. 🏆Proven Track Record: With over 120+ successful NetSuite projects for leading brands, we have a proven methodology that delivers results – fast. 🏆Holistic Support: We offer pre-ERP consulting to capture your processes, perform gap analysis, and recommend the optimal setup. 🏆Long-Term Commitment: Our focus is on customer success and building long-term partnerships. We deliver agile, cost-effective on-site implementations and provide ongoing optimization services to ensure you maximize the value of your investment. Beyond NetSuite: Our expertise extends beyond NetSuite. We can assist you with leading technologies like Salesforce CRM, Kyriba, Blackline, Celigo, and Dell Boomi to ensure a fully integrated ecosystem for your business. 🔗 Our Services: 🔗Pre-ERP Consulting 🔗NetSuite Implementation & Customization 🔗NetSuite Administration & Integration 🔗Suitecommerce Advanced (SCA) Implementation 🔗NetSuite Optimization We are a team of certified NetSuite and SuiteSuccess consultants, passionate about helping your business thrive. Let TechlyCodes be your trusted partner on your journey to empowering the ERP and CRM Solutions. DM right away to connect with us and discuss your IT needs! 📩
    Featured Skill Groovy
    NetSuite Administration
    Financial Analysis
    API Integration
    Oracle NetSuite
    NetSuite Development
    SuiteScript
    Financial Reporting
    SQL
    JavaScript
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