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Hire the best Spring Boot Freelancers in Poland

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  • $35 hourly

    • 4.8/5
    • (4 jobs)
    IT Specialist with over 15 years of experience in a variety of organizations . Committed to continuous learning to ensure my skills are up to date, flexible and organized, with ability to work effectively. Excellent contributor as part of a team and proven ability to work on own initiative.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Flutter
    Linux System Administration
    Jakarta EE
    Vaadin
    PrimeFaces
    Bash
    PostgreSQL Programming
    TypeScript
    Angular
    Ansible
    Android
    Database Architecture
    Java
    PostgreSQL
  • $50 hourly

    • 5.0/5
    • (16 jobs)
    Experienced Dev-Ops and Cloud Engineer with 8 years of expertise serving startups and enterprise clients 🚀. Specializing in AWS Cloud solutions ☁️, Infrastructure as Code 🏗️, Docker 🐳, Kubernetes ☸️, CI/CD ♾️, serverless architectures ⚡ and microservices. Certified AWS Cloud Solutions Architect and DevOps expert 🏅. Dedicated to ensuring high performance and reliability through advanced monitoring and observability practices. Greetings! I'm Artur, DevOps/Cloud Engineer & Serverless Enthusiast from Poland 🇵🇱 I have been involved in software development for over 8 years. “You can't do today's job with yesterday's methods and be in business tomorrow" My main goal at work is to deliver value to my clients. I do my best to understand the client's needs and design and provide a tailor-made solution based on these needs. Let's bring modern architecture and technology innovation to your business to help you earn money, save money, or both! During my career path, I have worked in many roles, thanks to which my competence is quite wide. AWS Cloud Engineer ☁️ - Cloud migration. Helping migrate existing infrastructure/applications to AWS - Cloud cost optimization. Analyzing cloud usage and identifying areas to reduce spending without affecting performance or functionality. - Cloud security and compliance. Helping ensure cloud infrastructure and applications to be are secure and compliant with relevant regulations and standards. - Cloud performance optimization. Optimize the performance of cloud applications by analyzing and fine-tuning cloud resources like storage, network, and compute - Designing and deploying cloud-ready services according to 12 Factor-App methodology DevOps & SRE ⚙️ - Developing and implementing CI/CD pipelines and releases process. Using mainly GitHub Actions, and other similar products eg. GitLab, Bitbucket Pipelines, and CircleCI. - Managing microservices platforms based on Docker. Extensive experience in deploying services with AWS ECS and Kubernetes. - Automating infrastructure provisioning and configuration management using tools like Terraform, CloudFormation or AWS CDK. - Ensuring system monitoring. Planning infrastructure responsible for monitoring and component configuration (metrics, dashboards, alarms, and notifications). Experience with ELK Stack, Prometheus, Grafana, Loki, Cloud Watch, and DataDog. - Centralized management of permissions, secrets, and credentials using HashiCorp Vault - Designing and implementing disaster recovery, business continuity, and backup plans. Infrastructure failure prevention using Chaos testing approach. - Infrastructure performance monitoring. Detection of bottlenecks and anomalies. Automate handling of critical events. Software Developer 🧑🏼‍💻 - Backend developer experienced with Java, Kotlin, Node, JavaScript, and TypeScript. - Knowledge of the Spring Framework ecosystem. - Experienced in designing and implementing APIs, including REST, GraphQL, and gRPC. - Knowledge of various database solutions, such as relational databases (e.g. MySQL, PostgreSQL) and NoSQL databases (e.g. Redis, DynamoDB), and ORMs like Hibernate. - familiar with the TDD approach. JUnit/Mockito/Jest are always in my toolbox. More info about me in my Link Bio: abartosik.dev 🌐
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Microservice
    Grafana
    Prometheus
    Node.js
    Java
    Serverless Computing
    Cloud Computing
    AWS Lambda
    CI/CD
    Kubernetes
    Terraform
    Cloud Architecture
    Docker
    Amazon Web Services
  • $60 hourly

    • 5.0/5
    • (6 jobs)
    🎯 What Value Can I Bring to Your Business? 🚀 I help businesses achieve digital transformation goals by delivering scalable, high-impact solutions. Whether you need to automate workflows, optimize performance, or integrate cutting-edge AI technologies, I bring the expertise to turn your ideas into reality. ✅ Save Time & Reduce Costs by automating repetitive tasks and streamlining operations. ✅ Improve Performance & Scalability with robust backend architectures that grow with your business. ✅ Enhance User Experience by integrating seamless APIs and cloud-based solutions. ✅ Stay Ahead of the Competition with custom AI tools that offer actionable insights and intelligent automations. ✅ End-to-End Platform Development - From concept to launch, I can build entire platforms tailored to your business needs, covering everything from backend architecture to frontend design. 💼 How I Ensure Success: Discovery & Consultation 📋 - Understanding your unique needs and business objectives. Solution Design & Documentation 📐 - Creating a roadmap with clear deliverables and timelines. Development & Integration 🛠️ - Building secure, scalable, and efficient systems tailored to your requirements. Testing & Deployment ✅ - Ensuring your solution is production-ready with rigorous testing. Ongoing Support & Optimization 🔄 - Providing continuous improvements and feature upgrades to keep your system future-ready. 🤝 Let's Connect and Build Something Great Together! 🔧 Technical Skills & Technologies 🖥️ Programming Languages: Java (Spring Boot, Hibernate) Python (FastAPI, Django) ⚙️ DevOps & Cloud: Docker 🐳 & Kubernetes ☸️ for containerization and orchestration CI/CD pipelines (GitHub Actions, Jenkins) AWS ☁️ (EKS, S3, Lambda) Azure & Google Cloud Platform (GCP) 📊 Databases: PostgreSQL 🐘, MongoDB 🍃, MySQL Redis for caching ⚡ 🤖 AI & Machine Learning Tools: OpenAI GPT integrations Custom LLMs (Large Language Models) deployments NLP (Natural Language Processing) and NER (Named Entity Recognition) solutions 🔗 Integration Expertise: I specialize in integrating with platforms like: Twitch, WhatsApp, TikTok, Instagram, Facebook Monday.com, GoHighLevel, Make.com, Zapier Payment gateways, CRMs, ERPs, and more!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Solution Architecture
    Software
    OCR Algorithm
    ChatGPT
    Django
    Make.com
    Zapier
    Automation
    DevOps Engineering
    Java
    Python
    Artificial Intelligence
  • $50 hourly

    • 5.0/5
    • (21 jobs)
    As a seasoned Senior Software Engineer, I've amassed a wealth of experience working with various technologies over the years. My expertise lies particularly in Java and Spring Boot, where I've specialized in developing robust and efficient solutions. I've collaborated with teams worldwide, showcasing my adaptability, and I've also successfully managed solo projects. My background spans diverse work environments, from agile startups to established corporations, providing me with a broad perspective and versatile skill set. My project portfolio encompasses a wide array of domains, including advertising, mobile solutions, online education, media, and fintech. This breadth of experience enables me to tackle challenges from multiple angles and deliver comprehensive solutions. I'm passionate about delivering high-quality work and thrive on collaboration within dynamic teams. I'm eager to bring my expertise to your projects, contributing to innovation and collective success. Let's connect and explore how I can elevate your projects with my proven track record.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Messaging System
    AWS Application
    Software Architecture & Design
    API
    Database Architecture
    CI/CD
    Docker
    API Integration
    RESTful Architecture
    Containerization
    Vue.js
    Spring Framework
    Java
  • $35 hourly

    • 5.0/5
    • (8 jobs)
    I am responsible for writing REST back-end service from scratch alone using Java 11, Spring Boot 2.2.0, configuring deployment process by writing multi-stage build dockerfile and makefile for terraform, scope of service requests required me to write some sort of a framework to get rid of boilerplate code. Also I am involved into front-end part for the other service, which require me to write components using react hooks, consuming API using Axios and manage state using redux hooks.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    JUnit
    MySQL
    PostgreSQL
    Spring Framework
    Mockito
    React
    Java
    JavaScript
    Java Servlet API
    Spring MVC
  • $60 hourly

    • 5.0/5
    • (7 jobs)
    Experienced backend Java developer with over a decade of expertise in developing and maintaining high-quality software solutions. My career includes roles at Accenture, Credit Suisse and GFT Group. Based in Poland, I have also worked in London with Luxoft and Unibet, a leading company in the gambling industry. Top-rated Upwork freelancer, ranked in the top 5% of performers with a 100% Job Success Score. Proficient in Java, Spring Boot, REST APIs, and cloud technologies (AWS). Adept at working with distributed international teams, emphasizing clean code practices and delivering challenging projects. Programming Languages: Java, JavaScript, Scala APIs & Integrations: RESTful APIs, GraphQL, WebSocket, RabbitMQ, JMS, Kafka Cloud & DevOps: AWS (Cloudformation), Docker, CI/CD (Jenkins, GitHub Actions) Frameworks & Tools: Spring Framework, Spring Boot, Hibernate, JPA Version Control: Git, GitLab, Bitbucket Databases: MySQL, PostgreSQL, MongoDB, Redis Testing: JUnit, Mockito, Cucumber, TDD Others: Observability, Keycloak, Angular, Maven, Bash
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    CI/CD
    Amazon Web Services
    Spring MVC
    Java Persistence API
    Hibernate
    API
    RESTful API
    SQL
    Docker
    Web Application
    AngularJS
    Java
    MySQL
    Spring Framework
  • $45 hourly

    • 4.9/5
    • (11 jobs)
    Hello👋 Are you looking for experienced and certified Java engineers to boost your project? You are on the right page! Clear Solutions team provides Java engineers and grows their skills for you. We have more than 12 years of experience in IT and 8+ in Java. My team and I are happy to provide: 🚀 Java developers with transparent knowledge for transparent rates 🚀 People development services: technical assessments, mentoring, evaluation etc. Based on more than 500 interviews and technical assessments we made in the industry so far we created our own evaluation scale. Therefore you always know what set of knowledge you pay for each grade. Do you feel this is what you need? Let's schedule a quick call and find out how we could help you to grow ✅ I have an experience in the following: 👉 migration from on prem to AWS 👉 building microservce architecture from scratch 👉 delivering robust and high-quality code with unit tests 👉 building java high-load and distributed applications 👉 migration from monolith to microservices 👉 building the right engineering culture inside the company 👉 mentoring technical leaders Tech Stack: 🔹 Languages: Java 8, Java 16, Groovy. Spring boot, RESTful API, DB design, 🔸 Frameworks: Spring, Spring Boot, Hibernate, Spring Data 🔹 Clouds: AWS 🔸 SQL: PostgreSQL, MariaDB, Oracle 🔹 NoSQL: Elasticsearch, Redis, MongoDB, Cassandra, DynamoDB 🔸 Message brockers: Apache Kafka or RabbitMQ 🔹 Testing: Junit5, Testcontainers, Spock, RestAssured We have expertise in the following fields: ✅ FinTech, ✅ Trading, ✅ Cryptocurrency, ✅ Banking, ✅ Data processing, ✅ Healthcare, ✅ Social Networking and more. Do you feel this is what you need? Let's schedule a quick call and find out how we could help you to grow As a Backend Developer, I specialize in building robust Java Applications using Core Java, Spring Framework, and Spring Boot 3, leveraging tools like Maven, Gradle, and Bazel for efficient builds, and integrating Hibernate, JPA, and Apache POI for database and document handling. I have extensive experience with RESTful Architecture and SOAP for designing APIs, ensuring Application Security, and implementing testing frameworks like JUnit, JUnit5, Mochito, and AssertJ. I work across diverse environments, including Docker, AWS, Amazon Elastic Beanstalk, AWS Lambda, Google Cloud, and Azure (Azure Cosmos DB), utilizing databases like PostgreSQL, MySQL, MongoDB, Oracle Database, Microsoft SQL Server, IBM Db2, and RabbitMQ. On the frontend, I use HTML, CSS, JavaScript, TypeScript, Angular, AngularJS, and React, collaborating seamlessly using tools like Jira. For messaging and event-driven architecture, I rely on Apache Kafka, Apache ActiveMQ, and RabbitMQ, and for advanced testing, I employ Testcontainers. With a focus on Software Architecture & Design, I also develop Standalone Applications, Desktop Applications, and Web Services, ensuring scalable, secure solutions for enterprise systems and Microservices Architecture.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Amazon Web Services
    MySQL
    MongoDB
    Kubernetes
    RabbitMQ
    RESTful API
    Elasticsearch
    Docker
    Hibernate
    Spring Framework
    Java
    SQL
    Apache Kafka
  • $40 hourly

    • 5.0/5
    • (4 jobs)
    I’m a Java Software Engineer with various experiences across many different technologies. Eager to tackle new technical challenges and functional discussions.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    SonarQube
    Axon
    Database Design
    Java
    API
    Apache Tomcat
    Database
  • $55 hourly

    • 5.0/5
    • (3 jobs)
    I'm a Senior Software Engineer with over 9 years of experience, I have gained extensive expertise in designing and implementing high-quality software solutions that meet the client's business requirements. Throughout my career I was working on multiple projects, here I'm sharing three of the most challenging ones: At UBS (a Swiss bank with a $60bln capitalization), I was a Senior Java Developer, and I was responsible for developing a regulatory reporting engine to handle dozens of millions of transactions the bank processes daily. This project was part of implementing their new business requirements around designing a project on an entirely new event-driven technological stack. There were several main challenges that I faced when designing and implementing the system: 1. System should handle millions of transactions per day that have to be reported in a timely manner. 2. System should be tolerant to hardware failures, including the loss of the entire data center. 3. Around 40 developers should be able to work on the project productively with minimal conflicts. 4. Correctness of reporting is essential – every introduced bug can have disastrous consequences – the system should have checks in place that prevent buggy code from being deployed to production. 5. Transaction reporting domain is very complicated, and business requirements are frequently changing. System design should be flexible enough to adjust to the required changes. 6. There are multiple stakeholders involved; each has different requirements for the system. At Denario, a fintech startup, I worked as a Senior Java Developer, assuming full responsibility for designing, developing, deploying, and maintaining the application and DevOps tasks. The main challenges in the projects were: 1. Developing a high-performance system 2. Integrating with multiple Open Banking providers 3. Ensuring the platform was scalable, fault-tolerant, and highly available 4. Ensuring the platform was secure and user data was protected 5. Collaborating with the product team to design features that met users' needs 6. Maintaining the platform and fixing issues that arose in production 7. Assuming full responsibility for the end-to-end software development process At the Ministry of National Defense of Poland, I was a Team Leader and Technical Leader responsible for providing e-learning solutions for hundreds of thousands of users. My role involved leading a team of developers, analysts, and testers to develop and maintain a learning management system. I have experience working with a variety of technologies, including: Java, Spring Framework, Spring Boot, Hibernate, JUnit, Spock, Apache Flink, Kafka, PostgreSQL DB, Oracle SQL DB, Elasticsearch, Microsoft Azure, Kubernetes, AWS I am passionate about software development and strive to stay up-to-date with the latest trends and technologies. I am dedicated to delivering high-quality solutions and exceeding client expectations.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    API
    Spock
    Java
    Spring Framework
    JUnit
    Unit Testing
    Linux
    Apache Kafka
    SQL
    Bash Programming
    Linux System Administration
    Bash
  • $60 hourly

    • 5.0/5
    • (7 jobs)
    Totally I have: 19 years of experience in software development, 11+ years in Java development and design of web applications 8+ years of Management experience (Project Manager position and Team Lead). High level of communication, organization and negotiation skills
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Google Cloud Platform
    Liquibase
    JAXB
    Continuous Integration
    Web Application
    Apache Maven
    Hibernate
    JUnit
    Spring Framework
    Quartz
    XML
    Java
    Apache CXF
    PostgreSQL
  • $40 hourly

    • 5.0/5
    • (5 jobs)
    I'm a full-stack software engineer with more than 7 years of experience building systems and apps, working on every part of the stack, on my own and with teams, from scratch or inheriting large codebases. I have professionally used several programming languages such as Python, PHP and Java but I specialize and have a strong knowledge of JavaScript/TypeScript, both in the browser and server-side with Node.js. I have experience with: • PHP, Laravel, CodeIgniter, Symfony • Node.js, Express.js, Nestjs, GraphQL, Electron • React, Next.js, Vue.js, Nuxt.js, Vuex, Angular, Gatsby • Python, Django, Flask • Java, Spring Boot, Hibernate • TypeScript, JavaScript, Socket.io, CSS/Less/Sass/SCSS/Tailwind, Bootstrap, HTML5, WebSocket, • React Native, Flutter, Android, Java, Kotlin • Git, Github, Gitlab, Bitbucket, Trello, AWS, GCP, Azure,
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Streamlit
    API Integration
    Angular
    Vue.js
    Laravel
    CodeIgniter
    Flask
    Django
    Next.js
    React
    Java
    PHP
    Python
    Node.js
  • $49 hourly

    • 5.0/5
    • (2 jobs)
    Enthusiast of computer science, mathematics and the Mediterranean basin. Student of mathematics at the Jagiellonian University in Krakow, Poland. Experienced in software development 2+ years, looking for side jobs.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    REST API
    JavaScript
    React
    Docker
    PostgreSQL
    Java
  • $65 hourly

    • 4.9/5
    • (49 jobs)
    Highly skilled software developer with over 12 years of experience delivering exceptional solutions to clients. I specialize in full-stack development, including expertise in back-end, front-end, and DevOps, making me well-equipped to tackle complex projects. I have a proven track record in developing robust, scalable, and user-friendly applications across various industries, including finance, healthcare, and e-commerce. With excellent communication skills and a strong commitment to collaboration, I ensure smooth project delivery and successful outcomes. I am ready to bring my expertise to your next project on Upwork Back-end technologies and languages: - Java, Spring Boot, JPA/Hibernate + Spring Data - Scala, Play Framework, Akka - Node.Js, Express, Nest.Js, TypeScript - Maven/Gradle/SBT/NPM - Mysql, PostgreSql, MongoDB, Redis - GRPC, Protobuf DevOps and Microservices: - Linux/Unix - Docker - Nginx - Kubernetes - Prometheus - ELK stack Front-end technologies: - HTML/CSS/JavaScript - Angular - React
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    NestJS
    Kubernetes
    Microservice
    API
    MongoDB
    Node.js
    Angular
    TypeScript
    Scala
    PostgreSQL
    Java
    React
    Amazon Web Services
    JavaScript
  • $45 hourly

    • 5.0/5
    • (111 jobs)
    Greetings 👋 I'm a Java/Cloud architect, and lead engineer for 👨‍💻Special Software Reliability Technology (EDC) with over 18 years of experience in the area. I focus on reliable software, and mission-critical operations, for which I am utilizing custom-developed EDC technology for software reliability, to prevent system failures and crashes. I can help you with: • Cloud applications, scalable systems, • API design, development and integration, • High load/data volumes, predictive analytics, • Software for robots and machinery, • Internet of Things (IoT), • Reliable, safety-critical systems. I EARN/SAVE MONEY💰 FOR OUR CUSTOMERS by: • allowing their business to expand (or start sometimes:) • automating processes and reducing operational cost • using newer and more efficient technology • long-run cost reduction because of high-quality software. Don't take my word for it, please review my profile feedback. Some techs below... ✅ Cloud applications Cloud, serverless, scalable applications, architecture and development for Amazon Web Services (AWS) and Google Cloud Platform (GCP). ✅ Complex system development, API integration and development Develop custom software from A to Z, build sophisticated APIs, integrate third-party APIs, data hubs and gateways. ✅ Big data volumes processing, storage, and analytics Receive, process, store and analyze and send huge volumes of data. Cost-efficient data-focused systems on the cloud. ✅ Internet of things (IoT) Connect and manage thousands of simple and complex devices on the cloud, custom automation, reports and analytics. ✅ Other Workflow automation, Performance optimization, QA automation. Some tech details: ✓ Java: Java 8 and further versions, Spring, JavaEE, JavaFX ✓ Spring: SpringBoot, Spring MVC, Spring Security, Spring Data, ... ✓ Cloud: AWS, Google Cloud, Docker, Kubernetes, ECS, EKS, Cloud-native apps, scalable clusters, zero-downtime deployment. ✓ Databases: Oracle/PostgreSQL/MySQL, big volume storage (AWS Redshift, AWS Athena/S3, Aurora, Cassandra, HDFS), Redis, MongoDB, Neo4j. ✓ Web: Bootstrap, Angular, React, JavaScript, OAuth, Tomcat, JBoss. ✓ APIs: REST, SOAP, XML-RPC, WebServices, WebSockets, Swagger/OpenAPI 3 etc. ✓ AWS: Clusters, AWS EC2, AWS Kinesis, AWS Athena, AWS Redshift, AWS DynamoDB, AWS Lambda, AWS IoT, AWS SQS/SNS, AWS CloudFront/Route53/ApiGateway, vast AWS API usage, and automation. ✓ Data streaming: AWS Kinesis, Firehose, SQS/SNS, Kafka, Camel, RabbitMQ. ✓ Performance optimization: JMeter, JProfiler, AWS X-Ray, GTMetrix, Gatling. ✓ Version control: Git, Github, Bitbucket, GitLab, SVN. ✓ CI/CD: Bamboo, Jenkins, Circle CI, Sonar, Bitbucket pipelines, AWS CodeBuild/CodeDeploy. ✓ Other: Maven, Nexus, Gradle, Ant. I get things done.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    React
    Elasticsearch
    MySQL
    PostgreSQL
    Amazon EC2
    Kubernetes
    Docker
    API
    SaaS
    Internet of Things Solutions Design
    Cloud Architecture
    Amazon Web Services
    Spring Framework
    Java
  • $60 hourly

    • 5.0/5
    • (11 jobs)
    10+ years of software engineering experience. Former UpWork employee (was laid off with 21% of the workforce). My goal is to help you achieve more spending less time and money. Working on Ptah.sh - Docker Swarm-based Heroku and Vercel alternative. I have rich experience working with different technologies: from PHP & Python, through JavaScript and Go, to mobile development with React Native and Flutter. Started multiple projects on my own: - e-sportstats.com - where I was a CTO and led a small team of 5 engineers - ptah.sh - Docker Swarm-based Heroku alternative where I am the sole founder and engineer Among that, I lead various conferences and made a couple courses for internal use for the companies I've been working with.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Laravel
    Django
    MySQL
    PostgreSQL
    Java
    JavaScript
    PHP
    Python
    Demandware
    React
    Node.js
  • $20 hourly

    • 5.0/5
    • (5 jobs)
    Overview: With over 6 years of hands-on experience in software development, I bring a wealth of expertise in designing, developing, and deploying high-performance applications. My primary focus is on building scalable, secure, and maintainable solutions that drive business success. I am proficient in a wide range of technologies, including: Languages: Java, Kotlin, Python Cloud & DevOps: AWS, Terraform Database: PostgreSQL Frameworks: Spring Boot, Spring MVC, Thymeleaf Testing: JUnit What I Offer: Full-Stack Development: From designing intuitive user interfaces to building powerful back-end systems, I deliver end-to-end solutions. Cloud Solutions: Leveraging AWS and Terraform, I can set up, manage, and optimize cloud infrastructures, ensuring your applications are both scalable and cost-effective. Microservices Architecture: Skilled in Spring Boot and Spring MVC, I create modular and efficient microservices that enhance performance and maintainability. Database Management: I specialize in PostgreSQL, ensuring your data is structured, secure, and optimized for high-speed access. Test-Driven Development: Utilizing JUnit, I write clean, reliable code that passes rigorous testing, reducing bugs and improving software quality. Why Work With Me? Problem Solver: I excel in tackling complex challenges and finding innovative solutions that align with your business objectives. Detail-Oriented: My code is not just functional but also clean, well-documented, and maintainable. Client-Focused: I prioritize communication and collaboration, ensuring that your vision is realized in every project. Let’s collaborate to turn your ideas into reality with cutting-edge software solutions. I'm excited to help you achieve your goals!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    PostgreSQL
    Java
    API
    RESTful Architecture
    API Integration
    SQL
    Thymeleaf
    Hibernate
  • $25 hourly

    • 5.0/5
    • (1 job)
    I develop native Android and iOS applications of any complexity fast, skilfully and always on time. I graduated from a computer science faculty and have 3-year experience in mobile phone software development. Software development is not only my profession, but a favourite hobby as well. I’m a perfectionist, therefore I strive to implement all tasks the most elegant way. In my assignments I also take care of the technical aspect of the application and I make recommendations. After development I will help to publish and subsequently support and further develop the application. For development under iOS, I have the following skills: Tools: Xcode, Swift, Push-notification, VSC, TestFlight, Firebase, Crashlytics, JSON Library:, AFNetworking 2.x/3.x, Alamofire, CoreData, Realm, SDWebImage, CryptoSwift, KeychainAccess Patterns: Observer, Delegate, Singleton, The Clean Architecture (MVP, MVVM) For development under Android, I have the following skills: Tools: Android Studio, Android SDK, Java, Kotlin, VSC, Push-notification, LiveData, Room, SQLite, Firebase, Crashlytics, XML, JSON Library: Retrofit 2, Gson, Realm, Navigation, Cicerone, Picasso Patterns: Observer, Singleton, The Clean Architecture (MVP, MVVM) For server development, I have the following skills: Tools: IntelliJ IDEA, Spring Boot, Java, Swagger, JS, MySql, MongoDB Library: Spring, Hibernate, JPA, WEB Patterns: MVC
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Android SDK
    Apache HTTP Server
    Kotlin
    iOS Development
    Swift
    Spring Security
    Spring Framework
    Java
    Android App Development
  • $40 hourly

    • 4.3/5
    • (0 jobs)
    Experienced in Java and Spring Boot, I build scalable backend systems and robust RESTful APIs. Proficient in Google Cloud Platform and MongoDB for dynamic solutions. Skilled in SQL, Docker, and ensuring top-notch Quality Assurance. Expertise in Python, Machine Learning, and AI App Development. I integrate artificial intelligence and automation to create innovative solutions.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Amazon Web Services
    Artificial Intelligence
    Automation
    AI App Development
    Machine Learning
    Django
    Python
    React
    Quality Assurance
    SQL
    MongoDB
    Google Cloud Platform
    RESTful Architecture
    Java
  • $30 hourly

    • 5.0/5
    • (1 job)
    I develop multiplayer games for PC, VR and phones. Extensive experience in the full range of development from prototype to release . Experience: 1. UE Marketplace Plugin for navigation: AI Grid Path Finder 2. Individual entrepreneur - Application development for Gazprom Neft. 3. Roborace (Charge) - Development of a simulator for a sports car. - Development of procedural generation of the city. - Development of deep neural networks. 4. Virtuality Club - Development of single and multiplayer projects for VR. - UI development. - Development of Skills and Abilities. 5. Narratex - Development of single and multiplayer projects for VR. Skills: - UE4 (C++, bp) - Java (Spring Boot) - WebSocket - SQL(PostgresSQL)
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Websockets
    Java
    SQL
    C++
  • $25 hourly

    • 5.0/5
    • (7 jobs)
    I am a full stack developer with experience in building medium and enterprise web applications. I’m experienced in Java, JavaEE, Spring, HTML/CSS/JS, React, JPA, Databases Also I have some experience Docker, RabbitMQ, ELK stack, I’ll fully project manage your brief from start to finish Regular communication is really important to me, so let’s keep in touch!”
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Servlet
    Spring Framework
    React
    Spring Security
    CSS
    HTML
    Spring Batch
    EJB
    Java
    JavaScript
    JSTL
    Jakarta Server Pages
    Hibernate
    jQuery
  • $25 hourly

    • 5.0/5
    • (3 jobs)
    I’m a developer with experience in building both front end and back end for small and medium sized businesses. Whether you’re trying to win work, list your services or even create a whole online store – I can help! I’m experienced in Java, Spring, Hibernate, SQL, Docker, Jenkins, React, Angular, JavaScript, plain HTML and CSS I’ll fully project manage your brief from start to finish.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Jenkins
    Docker
    Apache Kafka
    Angular
    Redux
    CSS
    HTML
    React
    JavaScript
    MySQL
    PostgreSQL
    Java
  • $35 hourly

    • 0.0/5
    • (1 job)
    Software Developer, using latest technologies. Experienced with building software using Spring framework as well as deploying cloud-based solutions (AWS, GCP). I always try to develop my skills and get to know new things. I’m open to face new challenges and to discover the world. I never give up on reaching a goal.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    GitHub
    Jira
    AWS CloudFormation
    AWS Application
    PostgreSQL
    Microservice
    DevOps
    Architectural Design
    Kubernetes
    Docker
    Terraform
    Python
    Java
    Google Cloud Platform
  • $63 hourly

    • 5.0/5
    • (1 job)
    I'm a passionate Java developer who's aim is to deliver the perfect software for the customer. I wouldn't describe myself just as a developer who translates English into Java. I like to take actively part in software development, like taking architectural decisions, talking with business about functionalities, brainstorming on challenges. My core experience is Java, Spring Boot. We worked both on big and smaller projects.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Spring Cloud
    RabbitMQ
    Kubernetes
    SQL
    Spring Data
    Hibernate
    Java
    Spring Batch
    MySQL
    MongoDB
    Docker
  • $30 hourly

    • 5.0/5
    • (0 jobs)
    Hi, I am a highly skilled Software engineer, with 8 years hands on experience in Software development. I have worked on project of multimillion dollars with large client For example I have worked with Walmart Lebara MyK+ And some confidential clients. My core skills are: Java, Core Jave, Spring Framework, Spring MVC, Spring boot, Spring batch, Spring Security, Kotlin, ROR, Sql DB, No Sql DB, and many more
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Microsoft Azure SQL Database
    Spring Cloud
    AWS Application
    Splunk
    Spring Batch
    Spring Framework
    Spring Data JDBC Extensions
    Spring Security
    Azure Cosmos DB
    Kotlin
    Spring Data
    Java
    SQL
    Spring MVC
  • $33 hourly

    • 0.0/5
    • (0 jobs)
    I am a passionate software developer with expertise in Java, Salesforce Development, React.js, and a strong focus on building innovative, high-quality software solutions. With a deep understanding of backend services, frontend interfaces, and database management, I excel at crafting scalable and efficient systems tailored to unique business needs. Over the years, I’ve gained experience working with tools and technologies like Force.com Apex, OOP principles, SQL, Git, and modern JavaScript frameworks such as React.js and Lightning Web Components (LWC). My expertise spans from designing robust Salesforce workflows to creating responsive frontend experiences that delight users. Beyond technical skills, I value clear communication, team collaboration, and critical thinking. I approach every project with a creative mindset, ensuring not only functionality but also a seamless user experience. My adaptability to new technologies and trends allows me to stay ahead in the ever-evolving tech landscape. Key Skills: - Backend: Java, Apex, SQL - Frontend: React.js, JavaScript, LWC, jQuery - Tools: Git, Salesforce Platform - Soft Skills: Problem-Solving, Communication, Teamwork, Active Listening, Critical Thinking Why Work With Me? - A strong commitment to code quality and scalability - An eagerness to innovate and tackle complex challenges - Transparent communication and an open-minded approach to collaboration Whether you're looking to build a custom software solution, optimize your Salesforce environment, or enhance your web application with modern React.js interfaces, I’m here to help you bring your vision to life. Let’s create something amazing together. 🚀✨
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Software Development
    Salesforce App Development
    Salesforce Lightning
    Salesforce
    MongoDB
    JavaScript
    Material UI
    React
    CSS
    Back-End Development
    SQL
    Bootstrap
    HTML
    Java
  • $45 hourly

    • 0.0/5
    • (1 job)
    - Results-driven software engineer with 3 years experience in IT - Programming Languages: Java, Javascript - Experienced in estimating, designing, implementing and testing of Java-based complex and high-performance applications - Soft skills are teamwork, time-management, quick witty, assiduity, communication - Interested in staying up-to-date with the latest technologies and best practices in software development.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    AWS Development
    Apache Kafka
    Spring Cloud
    React
    Kubernetes
    Facebook JavaScript
    Hibernate
    Spring Data
    JavaScript
    Java
  • $20 hourly

    • 5.0/5
    • (1 job)
    Hello! 👋 I’m Oleksandr, a Senior Full-Stack Developer with over 4 years of experience. I specialize in building robust web applications using Spring Boot and Angular, and have extensive experience in backend and frontend development. I help businesses streamline their processes, improve performance, and deliver seamless user experiences. Tech stack: - Java, Spring Boot, Spring Security, Spring Framework, JUnit, Mockito - JavaScript, TypeScript, Angular, Vue - SQL (MySQL, MariaDB), NoSQL (Redis) - HTML, CSS (SCSS, Bootstrap, Tailwind) - Maven, Docker, Git, Jira, Jenkins - PHP, Symfony , Laravel Let's talk I can help you! 💬 Regards Oleksandr
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Web Development
    SCSS
    NoSQL Database
    SQL
    Git
    JavaScript
    TypeScript
    Jenkins
    Docker
    Docker Compose
    Hibernate
    Spring Security
    Spring Framework
    Java
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