Hire the best Hibernate Developers in Ukraine

Check out Hibernate Developers in Ukraine with the skills you need for your next job.
  • $35 hourly
    Greetings 👋 I'm a Senior Java Developer and certified AWS Architect and Engineer with over 11 years of experience in backend development. I work with Spring Boot, Spring MVC, and JPA Hibernate to build efficient and scalable applications. From optimized database interactions to building solid APIs, I’ve taken care of the backend. I focus on reliable software and optimizations of mission-critical applications and infrastructure. As for Backend Skills ⚙️: I have been working with Java since version 6 up to version 21. Use a wide variety of Spring projects, starting from common Spring Boot and Spring MVC and finishing with Spring Cloud and Spring Batch. Database Proficiency 💾: I enjoy working with MS SQL Server, PostgreSQL, and MySQL, designing, optimizing, and managing databases. I also have a lot of NoSQL experience, including Redis, DocumentDB aka MongoDB, Aerospike, DynamoDB, OpenSearch aka ElasticSearch. For reporting purposes use Amazon Redshift. Cloud Experience ☁️: I've been working with Amazon Web Services for 8 years and I have Architect + Developer Associate certificates. I prefer building cloud-based apps using tools like Docker, Kubernetes, AWS Lambda, RDS with scalable clusters and zero-downtime deployment. Proficiency in API Integration 🌐: Worked with REST, SOAP, Swagger, OpenAPI 3 Performance optimization 🚀: Main tools used here are JMeter or Gatling, JProfiler, AWS X-Ray Working on my Front-end skills ⚛️: Currently expanding my skill set to the front-end world with ReactJS, HTML, CSS, and Tailwindcss to create gripping user interfaces. Connect systems with messaging ✉️: Have a long journey with Apache Kafka, SQS/SNS and RabbitMQ Graphical User Interface (desktop) 🖥️: With JavaFX and FXML, I create dynamic user interfaces that blend functionality with visual elegance for desktop applications
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Spring Data JDBC Extensions
    Web Development
    PostgreSQL
    Terraform
    Kubernetes
    AWS Development
    JavaFX
    Amazon Web Services
    Apache Maven
    Java Persistence API
    Spring Framework
    Spring MVC
    Java
    Spring Boot
  • $40 hourly
    👋 Greetings, I`m an experienced team lead / senior Java software developer with 8+years of hands-on web&mobile applications in ✔️ e-commerce, ✔️ FinTech, ✔️ SaaS domains, for mid-size and enterprise projects My Specialization ✅ Java (8+): Widely utilizing recent Java features, including Lambdas, Stream APIs, DateTime APIs, and Functional Interfaces. ✅ Java EE: RESTful Services, SOAP Services, JPA, Hibernate, API Integration etc. ✅ Spring: Spring Core, SpringBoot, Spring Data, Spring Cloud, etc. ✅ Other "frameworks": Keycloak authorization, JHipster, Swagger, Liquibase, Axon, Vaadin ✅ SQL Databases: PostgreSQL, MySQL, MariaDB, Oracle ✅ NoSQL Databases: MongoDB, Redis, Hazelcast ✅ Message Broker: Kafka and Zookeeper ✅ Firebase messaging ✅ Message Queues: ActiveMQ & RabbitMQ. ✅ ELK: logstash, elasticsearch, kibana ✅ Testing: JUnit, Spring Test, Mockito, Integration Test, Unit Test. ✅ Versioning: GIT, GITHub, BitBucket, GitLab etc ✅ DevOps: Jenkins, Docker, Kubernetes, CI/CD ✅ Hands-on design, development, implementation, and optimization of the application. ✅ Apply software engineering best practices incl. design review, code review, and refactoring. ✅ Experienced with the full Software development life cycle (SDLC) including gathering requirements, development (design, coding, debugging), testing & deployment I`m glad to be involved in your project and do my best to reach maximum impact 🚀 Several testimonials from previous clients: 💪 "After Roman has joined our team, we need nothing, except the Roman-clone machine" - my team lead said to HR after the probation period ended 😎 "Anything can happen, even if management is absent, but the team will continue to deliver if Roma is here" - my Lead Project manager in the latest project
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    OAuth
    Web Application
    Mobile App
    Web Development
    Spring Boot
    RabbitMQ
    MongoDB
    SQL
    Spring Framework
    Database
    Microservice
    API
    Kotlin
    Java
  • $56 hourly
    I’m a ☕ 𝐉𝐚𝐯𝐚 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 with over a 𝐝𝐞𝐜𝐚𝐝𝐞 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 in developing business applications. I’ve consistently delivered robust, scalable, and maintainable software solutions across different industries like telecommunications, cartography and infrastructure. My passion lies in tackling complex challenges head-on and transforming them into elegant, efficient code. Whether you're looking to build a new application from the ground up, optimize an existing system, or solve a specific problem, I bring a wealth of experience and a results-driven mindset to every project. My expertise extends to cloud technologies, particularly with AWS, where I've architected and deployed cloud-native solutions that are both efficient and resilient. Let's collaborate to turn your vision into a reality with the power of Java. 💻 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝘀𝗸𝗶𝗹𝗹𝘀 ✅ Object-Oriented Design ✅ Java ✅ Spring stack (Core, MVC, Batch, Boot, Security), JakartaEE(JSF, JSP, EJB) ✅ JPA, Hibernate ✅ MySql, PostgreSQL, Oracle ✅ Cloud (AWS, AWS Lambda, API Gateway, DynamoDB, EC2) ✅ JUnit, Mockito ✅ Maven, Gradle ✅ JavaScript, HTML, CSS ✅ ReactJS ✅ GIT, SVN 📄 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲𝘀 ⭐️ Oracle Certified Associate, Java SE 8 Programmer ⭐️ AWS Certified Solutions Architect – Associate 👨‍🎓 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 ⭐️ Master degree in Software Engineering from Yuriy Fedkovich Chernivtsi National University
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Docker
    PostgreSQL
    Spring Framework
    Apache Maven
    SQL
    React
    Git
    MySQL
    AWS Lambda
    Amazon DynamoDB
    Amazon Web Services
    Spring Boot
    REST API
    Java
  • $45 hourly
    "⭐️⭐️⭐️⭐️⭐️ Recommended. Always fast, efficient and always open to discussion. The assigned tasks were performed at a high level. It was easy to find common ground..." I am Top-Rated Full Stack Developer with 10 years of experience in Web/Software development. I do development, designing, debugging, covering with tests, analytics of architecture, finding the best solutions for your needs, increasing performance, finding solutions, team-leading, and managing teams of up to 10 people. I was working on various projects and different roles. I am great as a standalone developer and also perfect as a team player. I worked with 90+ Clients Across Various Platforms 🏆🔥 I am proficient in: Font-end ✅ HTML/HTML5 ✅ CSS/CSS3 ✅ JavaScript ✅ Jquery/Ajax ✅ JSP ✅ AngularJS/Angular2+ ✅ React ✅ Bootstrap ✅ FontAwesome Databases ✅ MySQL ✅ PostgreSQL ✅ MS Access ✅ MSSQL ✅ OracleDB ✅ MongoDB Application/Web Servers ✅ Apache Tomcat ✅ NGINX Programming Languages/ Technologies ✅ Java ✅ TypeScript ✅ JavaScript ✅ Software Architecture Design ✅ UML ✅ Reverse Engineering ✅ Design Patterns ✅ JDBC ✅ RMI ✅ Maven ✅ JSP ✅ Servlets ✅ Web Services ✅ JPA ✅ DataSource ✅ DBCP ✅ Rest ✅ SQL ✅ SpEl Frameworks ✅ Spring ✅ Spring Security ✅ Spring MVC ✅ Hibernate ✅ JPA ✅ Spring Data ✅ Spring Oauth2.0 ✅ EJB ✅ JUnit Development Tools ✅ Eclipse ✅ NetBeans ✅ IntelliJ idea ✅ Git Bash ✅ SmartGit ✅ Visual Studio Code ✅ Sublime Text Editor ✅ JUnit/ Log4J If you are looking for a developer who can deliver the highest quality code, facilitate easy and comprehensive communication, engage in detail-oriented programming, and ultimately satisfy the customer, you have found the right person. Looking forward to our cooperation! Best, Oleg.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Kubernetes
    SaaS Development
    Web Development Consultation
    App Development
    AWS Development
    Web Development
    Back-End Development
    Front-End Development
    Spring Boot
    Spring Framework
    Angular
    Java
  • $7 hourly
    "Hi! 👋 I'm a backend developer with 3 years of experience specializing in Java ☕ and the Spring Framework 🌱. ❗❗❗As of Feb 14 of 2025 I am actively available. ❗❗❗ With a robust understanding of SQL 🗄️, REST 🌐, and various database systems, I’m dedicated to creating high-performance, scalable, and maintainable applications. 🚀 My expertise in testing 🧪 and deployment ensures that my solutions are functional and reliable." Technical Skills: 🟡 Programming Languages: Java 🌱 Spring Framework: Spring Boot, Spring Core, Spring Data Access, Spring Web, Spring MVC, Spring Security 📦 Object-Relational Mapping: Hibernate, JDBC, JPA, OXM ✅ Testing: JUnit, Jupiter, Mockito, Unit Tests, Integration Tests 🛠️ Build Tools: Maven 🗄️ Databases: SQL, MySQL, PostgreSQL 🔄 Version Control: Git 💻 IDEs: IntelliJ IDEA, Eclipse, Neovim 🔗 Other: Java OOP, Collections, Exception Handling, Streams and Lambdas, Concurrency and Multithreading, Input/Output (I/O), Memory Management, Design Patterns, Annotations. What I Offer: 🌐 Backend Development: Building RESTful APIs and microservices with Spring Boot, ensuring efficient data handling and service integration. 📊 Database Management: Designing and implementing robust database schemas and optimizing SQL queries for MySQL and PostgreSQL. 🧪 Testing Excellence: Writing comprehensive unit and integration tests to ensure code quality and functionality. ⏩ Agile Methodologies: Familiar with Agile practices, enabling rapid development and iterative feedback. 🤝 Collaboration: Strong communicator who thrives in team environments, working closely with front-end developers, product managers, and stakeholders. Why Work With Me? ✨ I am passionate about technology and continuously seek to improve my skills and stay updated with industry trends. My approach combines technical expertise with a commitment to delivering quality solutions that meet your business needs. I take pride in writing clean, efficient code and always look for ways to enhance performance and scalability. Let’s Connect! 🎉 If you’re looking for a dedicated backend Java developer who can deliver results, I’d love to discuss your project further. Feel free to reach out, and let’s create something amazing together! Tags: #Java Spring, #Hibernate, #Java EE, #Apache Maven, #Apache Tomcat, #JavaFX, #JUnit, #Gradle, #Java Servlets, #Microservices, #Jakarta EE, #Android Development, #Java Persistence API, #Lombok, #Java Streams, #JPA, #Vaadin, #Java 17, #NetBeans, #IntelliJ IDEA, #Eclipse, #RESTful Web Services, #SOAP, #Apache Kafka, #JBoss, #Docker, #Kubernetes, #Spring Boot, #Thymeleaf, #JUnit 5, #Mockito, #Spring Security, #Vert.x, #Java Native Interface (JNI), #Apache Camel, #JavaFX Scene Builder, #Spring Data, #Apache Cassandra, #Jenkins, #SonarQube, #Log4j, #SLF4J, #Mockito, #Spring Cloud, #Apache Ant, #Java Mission Control, #GraalVM, #JavaFX CSS, #JDBC, #Eclipse IDE, #Java Web Start, #Netty, #Play Framework, #Apache Solar, #Java Card, #Java EE 8, #Quarkus, #MicroProfile, #Jakarta Faces, #Spring Batch, #Java RMI, #MikroORM, #JOOQ, #Jersey, #Selenium WebDriver, #Apache Spark, #Jenkins Pipeline, #Java Modularity (JPMS), #Spring Cloud Data Flow, #Apache Kafka Streams, #HikariCP, #Spring WebFlux, #Kotlin (for Java interoperability), #AspectJ.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Java ME
    Java Media Framework
    J2SE
    Java GUI
    JavaFX
    MySQL Programming
    MySQL
    Core Java
    Java Collections Framework
    Java Persistence API
    Java Servlet API
    J2EE
    RESTful API
    Java
  • $30 hourly
    𝐈𝐬 𝐲𝐨𝐮𝐫 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐡𝐨𝐥𝐝𝐢𝐧𝐠 𝐲𝐨𝐮 𝐛𝐚𝐜𝐤 𝐟𝐫𝐨𝐦 𝐬𝐜𝐚𝐥𝐢𝐧𝐠 𝐨𝐫 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐚𝐭 𝐢𝐭𝐬 𝐛𝐞𝐬𝐭? With over 6 years of experience as a Java Developer, I specialize in solving complex technical challenges and transforming ideas into efficient, scalable, and impactful solutions. Whether it’s optimizing your existing systems, building microservices, or leading teams toward exceptional quality, I bring the technical expertise and strategic insight your projects need to succeed. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: ➡Over 6 years of hands-on experience in software projects development, utilizing Object-Oriented Analysis (OOA), Object-Oriented Design (OOD), and Object-Oriented Programming (OOP) principles. ➡ Proficient in designing and implementing Client-Server and Multi-Tier architectures. ➡ Worked in diverse technological domains such as healthcare, fintech, and cloud computing, showcasing adaptability and versatility. 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝗮𝗻𝗱 𝗙𝗼𝗰𝘂𝘀: ➡ Successfully played the role of a tech lead, demonstrating leadership skills in guiding teams towards achieving high development standards. ➡Prioritized and maintained a focus on quality throughout the development lifecycle. ➡Strived for enhanced productivity by implementing efficient development practices. 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 ✅Languages: Java, Java 8, Java 11, Java EE, Java SE, JavaFX, SQL, JSON, XML, YAML. ✅Frameworks: Spring (Spring Boot, Spring MVC, Spring Data, Spring Cloud, Spring Security, Spring AOP, Spring Batch, Spring WebFlux), Quarkus, Hibernate, JPA. ✅Design Paradigms: OOA (Object-Oriented Analysis), OOD (Object-Oriented Design), OOP (Object-Oriented Programming). 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐓𝐨𝐨𝐥𝐬 ✅Databases: MySQL, PostgreSQL, MongoDB, Redis, DynamoDB. ✅Cloud Platforms: AWS (EC2, S3, SQS, SNS, Lambda, IAM, CloudFormation), Azure (Virtual Machines, Storage, Functions, App Services), OpenShift. ✅DevOps & CI/CD: Docker, Kubernetes, Helm, Jenkins, Terraform, Maven, Gradle, Git (GitLab, Bitbucket, GitFlow). ✅Messaging & APIs: Kafka, RabbitMQ, REST APIs, SOAP, gRPC, API Gateway, WebSockets. ✅Authentication & Security: OAuth2, JWT. 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐚𝐥 𝐏𝐚𝐭𝐭𝐞𝐫𝐧𝐬 & 𝐃𝐞𝐬𝐢𝐠𝐧 𝐏𝐫𝐢𝐧𝐜𝐢𝐩𝐥𝐞𝐬 ✅Architectures: Microservices, Monolithic architecture, SOA (Service-Oriented Architecture), Event-driven architecture. ✅Design Patterns: CQRS, Saga pattern, Circuit breakers, Service discovery, Distributed systems, Distributed tracing. ✅Principles: SOLID principles, Clean code. 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 & 𝐌𝐞𝐭𝐡𝐨𝐝𝐨𝐥𝐨𝐠𝐢𝐞𝐬 ✅Testing: Unit testing, Integration testing, JUnit, Mockito, TestNG. ✅Development Methodologies: TDD (Test-Driven Development), BDD (Behavior-Driven Development), Agile (Scrum, Kanban). ✅Version Control: Git, GitLab, Bitbucket. 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 Performance optimization, Code refactoring, Code reviews, Database query optimization. 𝐀𝐫𝐞𝐚𝐬 𝐨𝐟 𝐀𝐜𝐭𝐢𝐯𝐢𝐭𝐲 Backend development, Web development, Full-stack development, API development, Cloud engineering, Data engineering. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 Financial services, healthcare, e-commerce, enterprise applications, cloud computing, telecommunications, logistics, travel and hospitality, media and entertainment, automotive, blockchain, IoT, Saas, retail.. 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐑𝐨𝐥𝐞𝐬 Backend developer, Java developer, Senior Java developer, API developer, Full-stack developer, Android developer, Java networking expert. 𝐓𝐲𝐩𝐞𝐬 𝐨𝐟 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 Java development services, Backend development, API integration, Cloud computing services, Performance tuning, Code audits and reviews, SaaS application development. Are you prepared to elevate your software to new heights? Let's discuss how I can infuse strategic innovation and technical excellence into your projects. 16/12
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Kotlin
    JavaFX
    Spring Framework
    Microsoft Azure
    Amazon Web Services
    Kubernetes
    Docker
    PostgreSQL
    RESTful API
    MySQL
    Spring Boot
    Back-End Development
    Software Development
    Java
  • $40 hourly
    ⭐⭐⭐⭐⭐"Mykyta has exceptional characteristics both in hard and soft skills. He took a part in complex software development projects as a part of a large mixed group. The feedback from our customers and team is always positive." ⭐I'm the highest-rated and highest-earning Java & Groovy freelancer on Upwork with numerous 5-star reviews, including overly positive feedback. ⭐ I've developed different custom specific software using modern java & groovy software using microservice and monolithic architecture, improved performance, refactored and tested in next business domains: ✅ Utilities ✅ Fintech ✅ Auto ✅ Security ✅ Cryptocurrency ✅✅✅ Brief information about me! ✅✅✅ ✅ Senior Java & Groovy Software Engineer ✅ Specializing in back-end development | Cloud Integrations (AWS, GCP, Azure) ✅ I have over 6.5+ years of experience in Java development ✅ Experienced both in developing software from scratch and maintaining large existing projects ✅ I have hands-on experience in developing back-end web services with micro-service or monolith architecture using Java technology stack, including modern cloud-based solutions. 🌟 WHY YOU SHOULD CHOOSE ME OVER OTHERS? 🌟 ✅ Clients' feedback: I am concentrating on giving VALUE and bringing SUCCESS to all of my customers, earning their TRUST and helping them to EARN MONEY. ALL customers' feedback on my Profile is extremely important to me and proves the value that I provide. ✅ Responsiveness: Communication is extremely important as a part of every business ever existed, and once it is fast and clear, it may lead to awesome results, that's why I tend to be available for my customers in no time, reply fast and clear, as well as I try to be fair, understanding and responsive. ✅ Kindness and Empathy: My main personal principles that I implement in every facet of my life. Treating everyone with respect, aiming to understand the whole situation or problem to solve the pain of my client, and constantly work to IMPROVE the client's product. 🙋🏼‍♂️I am eager to work with you, to provide high-quality code, reliable, consistent solutions, solve your problems and bring success to your business. Contact me, and we will discuss how we can work together to FULLY meet your Business Needs, follow your business rules, and bring you success. A big area of expertise: - REST API design and development - Horizontally scalable and highly available systems - Automating development workflows and deployment pipelines - Micro-service design and development - Design and development of decentralized applications (DApps) - Monitoring, log aggregation - Java and Groovy development - Service-Oriented architecture - Spring Framework (including cloud-based stack) - Experience in NoSQL Development (MongoDB, Neo4j) - Performance and Scalability Optimization Huge Skills & Technologies set: - Java/Groovy - AWS - Linux (with distributives) - Jenkins, CircleCI, Rundeck, Rancher - Docker - MySQL, Postgres - Redis, MongoDB, Neo4j. - RabbitMQ, ActiveMQ, SQS, RabbitMQ
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Microservice
    Web Service
    Amazon Web Services
    Web Services Development
    Spring Framework
    Apache Groovy
    Grails
    Java
    SQL
    Spring Boot
    AWS Lambda
  • $25 hourly
    Hi, I`m an experienced Software Developer, the best option for your ideas. There is no fear of emerging problems, I find the best solutions for them. I ensure: • Swift and responsive communication • Dedicate to the utmost client convenience. • High-quality work with punctual deadlines Main skills: ▸ Java ▸ Spring(MVC, Security, Boot, Data, Rest) ▸ Hibernate ▸ Docker ▸ Kafka ▸ Kubernetes ▸ CI/CD ▸ Selenium ▸ Git ▸ SQL ▸ MQTT ▸ Protobuf ▸ Internet of Things In my work, I have encountered different kinds of developments: Web programs; Programming tools; Server software for IOT gadgets; I don't stop at what I have achieved, because there is no limit to perfection!
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    CI/CD
    Internet of Things
    Selenium WebDriver
    Kubernetes
    Apache Kafka
    Docker
    PostgreSQL
    JDBC
    Spring MVC
    Thymeleaf
    Spring Boot
    Git
    Java
    Spring Framework
  • $60 hourly
    Greetings! I have been working as a Java developer for more than 12 years, my main clients are from Europe, Israel, India, China and USA. I am developing both desktop software and web applications, RESTful microservices etc. You can safely entrust me with the work on your project and will never be disappointed in our cooperation, I can guarantee the high responsibility and quality of the tasks that I carry out, which you can be sure of when you take me to your team. Main skills: Java technologies: - Java 8, 9, 11, 17 - JavaFX - Zuul, Ribbon, Eureka - Spring: Core, MVC, Web-flow, Integration, Batch, Boot, Social, Data, Config - Quarkus - Maven 2/3, JUnit 4 - JMS: RabbitMQ, ActiveMQ - JDBC, Hibernate 3.x, Neo4j - ESB, JNDI, JSP - WebDriver - JHipster NodeJS development: assisting libraries: express, async, soap, log4js connectivity: mongodb, redis, stomp-client, socket-io testing, building: should, mocha, grunt deployment: PM2, npm publishing and related activities promises, some EcmaScript 6 thingies Front-end development: Angular HTML 5, CSS 3, JavaScript (ES 5/6) JQuery, Bootstrap Other: pug (jade) Datastores: MySQL, MongoDB, PostgreSQL Other: AWS, Google Cloud, Azure services: Compute Engine, Cloud Storage, Data Store, SQL regular usage of Linux-based systems (anything necessary to develop and support software) infrastructure: Jenkins, SVN, git - commit/push/pull level ActiveMQ, Camel Elasticsearch
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Microservice
    Web Service
    Java
    JavaScript
    Jakarta Server Pages
    Spring Framework
    JavaFX
    Spring Boot
    Docker
    PostgreSQL
    MySQL
    MongoDB
    Node.js
  • $40 hourly
    I specialize in outsourced projects, from developing applications from scratch, adding new features, and debugging, to testing, bug fixing, refactoring, troubleshooting, and providing customer support. With a keen eye for detail and a passion for problem-solving, I'm dedicated to delivering high-quality work on time and within budget. Let me help bring your project to life! Skills ✅ Programming Language: Java and Python ✅ Technologies: Spring Framework, Hibernate ✅ Cloud: AWS(EC2, Open Search, Lambda, Elastic Beanstalk, S3), Google Cloud ✅ Database: MySQL, PostgreSQL, Oracle DB, MongoDB ✅ Testing: JUnit, Mockito, PowerMockito, JMockit ✅ VCS: Git (GitHub, GitLab, Bitbucket, Gerrit) ✅ Build tools: Maven, Gradle ✅ Operating Systems: MacOS, Windows, Linux ✅ Agile methodology: Scrum ✅ IDE: IntelliJ and Eclipse ✅ Tools: Postman, Swagger, Atlassian products, Redmine My strengths include: - developing web services using a micro-service architecture and creating RESTful services - collaborating with international teams through Scrum methodology - excelling in both team-oriented and individual projects - passionate about exploring new technologies and seeking challenging work with a team of professionals. Don’t hesitate to contact me.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Node.js
    Smartphone
    Android App Development
    Mobile App Development
    Amazon EC2
    MySQL
    Amazon S3
    PostgreSQL
    iOS
    Android
    Spring Boot
    Python
    React
    Java
  • $35 hourly
    I am a full-stack engineer (Java+ Angular) with 7+ years of experience. Responsible and enthusiastic. Love building high-growth world-class products. Why me: - Great knowledge of Java,AWS, Azure, GCP. Good knowledge of Angular. - Good communication. I've worked in and led multiple distributed teams. - Technically scale multiple high-growth, high-load venture-backed startup and enterprise products. I know how to build scalable and reliable software.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Spring Boot
    Spring MVC
    Amazon Web Services
    SQL
    Docker
    Angular
    Spring Cloud
    Apache Kafka
  • $55 hourly
    I am a Lead Back-end developer, driven by a passion for crafting exceptional solutions. With an extensive background spanning over 9 years in Java + Spring projects, I possess a strong foundation in solution architecture. Let us move beyond the technicalities and focus on the reasons why our collaboration would be highly successful: 1. Proven Track Record: Having successfully completed more than 10 projects, I have consistently delivered high-quality products that have satisfied clients. 2. Diverse Experience: Throughout my career, I have worked across diverse industries, including Healthcare, E-commerce, IoT, CRM, and E-Learning. This exposure has enabled me to explore various domains and adapt to new challenges. 3. Expertise in AI and ML: I possess extensive expertise in AI, GPT, and ML technologies. By joining forces, we can create intelligent and cutting-edge solutions that push the boundaries of innovation. 4. Agile Collaboration: I firmly believe in an agile and iterative approach. Through close collaboration and rapid iteration, we can attain remarkable results. Allow me to highlight the technologies I have mastered: Spring Security, Spring Scheduled, Spring Data, Spring Batch, JPA, JDBC, Hibernate Jsoup, Sqs, RabbitMq RDBMS, SQL, PostgreSQL, Redis, MongoDB, ElasticSearch, GraphDB, DiamondDB Furthermore, I am familiar with the following tools: SSH, Docker, Jenkins, Linux, Nginx, Gitlab Runners, Bash (Base) Deployment: Git, Tomcat, GlassFish, Maven, Gradle, Swagger, OpenSearch To ensure top-notch quality, I rely on JUnit, Selenium, and Spring Assured for testing purposes. I’m not just your go-to developer; I am here to cultivate a strong professional relationship. Let us collaborate and endeavor to create something truly exceptional. I am excited to embark on this journey with you!
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    CI/CD
    Business Logic Layer
    Spring Framework
    Automated Deployment Pipeline
    Requirements Specification
    MongoDB
    MySQL
    API
    PostgreSQL
  • $40 hourly
    I specialize in web application development, bringing extensive experience in Java (> 8 years) and Angular/React (> 3 years). What I provide: - API development with microservices; - Software architecture. Design of applications from scratch; - Implementation of high-load services providing high observability; - Solutions to address challenges related to scalability, maintainability, and security; - Performance optimization, fix slow segments, refactoring and data migrations; - Apply Agile practices to effectively organize work; and more. Expertise in (not only): • Fintech: payment integrations, trading, etc. • eCommerce • KYC • Healthcare • Administration systems • BigData TECHNICAL SKILLS - Programming languages: Java, Scala, JS, JQuery, Angular (typescript); - APIs: REST, MVC, Graphql, WebSocket, etc; - Databases: PostgreSQL, MySQL, Netezza, Oracle; MongoDB; - Microservices: Spring Boot, Spring WebFlux, Docker, Hibernate, Spring Security, Kafka, RabbitMQ; - Version Control Systems: Git; - Testing: JUnit, Mockito, Cucumber, LocalStack containers, Selenium; JProfiler, JMeter; - Cloud: AWS (S3, SQS, EC2, Lambda, Cognito, CloudFormation, ECR, EKS, AWS Console), GCP (Pub/Sub, Storage, GKE); - Software architecture. - Other: Maven, Gradel, Jenkins, Docker, K8s; Apache Spark, HDFS;
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Cucumber
    Kubernetes
    Docker
    Angular
    Git
    GraphQL
    RESTful API
    Software Architecture
    Amazon Web Services
    SQL
    Apache Kafka
    Microservice
    Spring Boot
    Java
  • $50 hourly
    I am a Java lead developer with over 10 years of commercial background in full circle development. Seasoned in project design and implementation from the ground up using cutting-edge technologies and software solutions. Over the years I've been involved in architecture design, planning, and team management while working on medium, big and large-size projects. I’m always wide open to new opportunities and challenges in work and eager to help customers to meet their business needs.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    PostgreSQL
    Spring Data
    Apache Kafka
    AWS Application
    Bootstrap
    Spring Boot
    Oracle
    MySQL
    Angular
    TypeScript
    MongoDB
    Java
    React
    JavaScript
  • $35 hourly
    Are you looking for a DevOps or SysAdmin? You’re on the right way!👇🏼 My name is Sofiia and I'm a DevOps and SysAdmin at one of the top dev firms in Ukraine in Kyiv as named by Clutch in 2020 🏆 About me: - 3 years of experience as system administrator - Programming languages: Java, JavaScript - Technologies & frameworks: Spring, Hibernate, Kafka, OOP, jQuery - Configuration/Automation tools: Kubernetes, Kiali, Istio, Calico, Consul, Terraform, Helm, Ansible - CI/CD: GitHub actions, Jenkins, Spinnaker - Cloud: AWS, Azure - Testing: jUnit, Postman - Databases: PostgreSQL, SQLite, MySQL, JDBC, FireBase - Deployment & VCS: Git, GitHub, Docker - Segments: Magento Commerce, WordPress Marketing websites, WordPress Woocommerce, ERP/CRM systems, corporate security access domain Skynix is a team of professionals focused on LAMP and JAM stacks. We deliver complex web and mobile applications development using PHP (Laravel, Yii2, Zend, or CMS systems like Magento or WordPress) and JavaScript (React, Vue, TypeScript, Ember). Why Skynix: - Providing development services starting from 2015 - 20+ team members (Senior 25%, Middle 45%, Junior 30%) and keep on growing - Only professional and enterprise-level of attitude - the project will be delivered, you can just enjoy the process - Great at remote work with various time zones - Our developers are good in English and learn skills extremely fast Need to empower your business? Let's work together
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    CI/CD
    Apache Kafka
    Docker
    Azure DevOps
    AWS CloudFormation
    Kubernetes
    Azure DevOps Server
    AWS CodeDeploy
    Terraform
    DevOps
    GitHub
    AWS CodePipeline
    Java
    System Administration
  • $32 hourly
    Hi, everyone I am a multilingual software developer with seven years of formal and informal experience, focusing on full-stack web application programming across multiple frameworks and architectures. I have a strong background in full-stack application development, including JavaScript, React, Next.js, Node.js, Vue, Java, and Spring framework, etc What I've specialized in: ✔️HTML5, CSS3, SASS/LESS, Tailwind CSS, Canvas, ThreeJs ✔️NodeJs, GraphQL, RESTful API, Nest.js ✔️React, React Native, TypeScript, Vue, Next.js, web3.js ✔️NFT minting, NFT marketplace, NFT staking ✔️Java, Spring boot, Hibernate ✔️php, Laravel, webflow ✔️MongoDB, MySQL, PostgreSQL ✔️SDLC: Waterfall, Agile, SCRUM, TDD ✔️Cloud Hosting: AWS, Google Cloud, Azure, Firebase One of my best advantage is my passion for work, truly collaboration. You always feel safe working with me. I look forward to hearing from you,
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Smart Contract
    Solidity
    web3.js
    Front-End Development
    Tailwind CSS
    Node.js
    React
    Next.js
    Nuxt.js
    Spring Framework
    Java
    Laravel
    Angular
    TypeScript
  • $40 hourly
    Hey Upwork! I’m a senior Java developer and a team lead with 5 years of commercial experience at Atlassian, Cisco, and Riyad Bank. I started my commercial career as an asset to enterprise in-house development teams, tech leading and executing the new updates of world-recognized products (Jira, Trello, Riyad Bank Mobile App, and others). A year ago I decided to switch towards a start-up environment, empowering prospective businesses by embodying enterprise best practices, guiding on a natural operations scale, and of course - direct execution (Back-end, DevOps). My commercial experience: 𝐀𝐭𝐥𝐚𝐬𝐬𝐢𝐚𝐧 | 𝐎𝐰𝐧𝐞𝐫 𝐭𝐨 𝐉𝐢𝐫𝐚, 𝐂𝐨𝐧𝐟𝐥𝐮𝐞𝐧𝐜𝐞, 𝐓𝐫𝐞𝐥𝐥𝐨, 𝐁𝐢𝐭𝐛𝐮𝐜𝐤𝐞𝐭, 𝐚𝐧𝐝 𝐨𝐭𝐡𝐞𝐫𝐬. 𝐌𝐲 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: • Development of Jira (including deserialization filters to prevent RCE over JMX). • On-going support for QuickStart templates for AWS CloudFormation and ARM templates for Microsoft Azure. • Maintenance and updates of all Atlassian DC products on the Azure Marketplace. 𝐓𝐞𝐜𝐡: • Java, Spring, AWS CloudFormation, Azure, Ansible, Docker, Bash scripts. 𝗥𝗶𝘆𝗮𝗱 𝗕𝗮𝗻𝗸 | 𝟰𝘁𝗵 𝗹𝗮𝗿𝗴𝗲𝘀𝘁 𝗳𝗶𝗻𝗮𝗻𝗰𝗶𝗮𝗹 𝗶𝗻𝘀𝘁𝗶𝘁𝘂𝘁𝘂𝗶𝗼𝗻 𝗶𝗻 𝗠𝗶𝗱𝗱𝗹𝗲 𝗘𝗮𝘀𝘁 𝐌𝐲 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: • Completely rewrite the banking application, also directing the process as a team lead. • Creation of a core library used in other teams' microservices. • Foundation of microservices with the implementation of the necessary business logic • Creating a Database Schema for different Databases • Database migrations using Liquibase 𝐓𝐞𝐜𝐡: • Java 17 with Microservices, Quarkus, Hibernate, Liquibase, Oracle, Docker, Maven, OpenShift. Cisco | The world's largest provider of network equipment 𝐌𝐲 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: • Foundation of microservices with the implementation of the necessary business logic • Updating a Database Schema according to business needs • Database migrations from DynamoDB to PostgreSQL using Python script integrated to GitHub Actions • Handling and producing Kafka messages implementing business logic. 𝐓𝐞𝐜𝐡: • Java 17, Spring, Python, Microservices, Apache Kafka, Hibernate/JOOQ, Flyway, DynamoDB, PostgreSQL, Docker, Maven Currently, I’m available for a new endeavor. I’m sort of new to Upwork:sweat_smile:, so feel free to reach out directly!
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Microsoft Azure
    Amazon EC2
    AWS CloudFormation
    Microservice
    MongoDB
    PostgreSQL
    RESTful Architecture
    Spring Framework
    Spring Boot
    Spring Security
    Java
  • $60 hourly
    Freelance IT Specialist | Software Engineer Delivering innovative, high-performance systems for over 17 years. I'm focused on complex system development, I’ve built scalable, resilient solutions for both B2C and B2B environments. Specializing in Java, Spring Boot, Spring Cloud, Maven, PostgreSQL, MySQL, Cassandra, MongoDB, RabbitMQ, and Azure Service Bus, I also bring expertise in technologies like Docker, Dropwizard, Kafka, Zookeeper, AWS. I design architectures that handle evolving demands with ease, integrating third-party systems seamlessly. I know how to design and implement complex systems from scratch, and I excel at supporting and revamping existing (legacy) systems to breathe new life into them. I’m always eager to explore and research new software, evaluating it for potential use in optimizing solutions and driving innovation. A few things I value: Collaborative mindset: I thrive in team environments where communication, trust, and shared goals drive the project forward. My leadership style is about guiding and sharing knowledge, not controlling - empowering teams to innovate while staying focused on delivering results. Precision: I’m committed to delivering clean, maintainable code with robust documentation. From Javadocs to Confluence pages, I ensure clarity so that my work remains accessible and easy to evolve. Every part of the system is documented, covering CI/CD setups and module-specific details. Testing is my backbone: Quality control isn’t an afterthought - it’s built into every stage of development. My philosophy extends beyond unit tests, incorporating performance testing to ensure scalability under real-world conditions. Eternal learner and innovator: Technology doesn’t stand still, and neither do I. I’m constantly exploring new methodologies, frameworks, and ideas to bring fresh insights to my work. From AI-driven automation to future-proofing system architectures, I’m always on the lookout for ways to elevate what’s possible. Freelancer with passion: As a freelancer, every project excites me like it’s my first. I thrive in fast-moving environments and love collaborating with teams to create software that not only meets immediate needs but anticipates future challenges. I’m committed to delivering innovations that matter and clean code that future developers will thank me for. What sets me apart? I bring a holistic approach, ensuring systems are not just functional but scalable, adaptable, and maintainable. From designing complex microservice architectures to ensuring third-party integrations are seamless, I focus on building systems that deliver real, lasting impact. More than just code, I care about the people and businesses behind the software. The right technology can make workflows smoother, interactions richer, and systems smarter - and I’m passionate about helping bring those transformations to life. If you’re searching for someone who combines deep technical expertise with a drive for innovation and quality, I’m ready to partner with you to build the future. Let’s create something remarkable together. P.S. If you’ve made it to this line, the very end of this long read, just tell me and I’ll give you a discount for your patience!
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Oracle PLSQL
    Spring Cloud
    Requirements Specification
    Software Architecture & Design
    J2EE
    Database Modeling
    Amazon Web Services
    Microservice
    RESTful Architecture
    SQL
    Java
    MongoDB
    Spring Framework
    Spring Security
    MySQL
  • $35 hourly
    Java developer for 19 years. I have developed a web applications using Java, JSP, Servlets, DHTML, Java EE, JDBC and standalone Java applications. My competency lies in development of full end-end products. I'm seekin opportinities for build java based web applications, standalone Java applications or Eclipse plugins. Also have experience in the following areas: GWT, Swing, AWT, SQL, OOP, JUnit, OSGi, Maven, Ant, Git, SVN, CVS, Floreant POS, Marketcetera, Quickfix/J, Play 1.x, Docker and software design and testing.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Core Java
    JavaFX
    HTML
    Spring Framework
    Java Persistence API
    KNIME
    J2EE
    Jakarta Server Pages
    OSGi
    Java
    Eclipse IDE
    JavaScript
  • $40 hourly
    Over 15 years practical experience in IT. Strong experience in software development. Capable of analyzing and designing of complex systems. Quick learner in new technologies. Main stack of used technologies/frameworks: Java(J2SE, J2EE, tools), .NET(Windows Forms, Web Services, MS Office interops), HTML, CSS, JavaScript (native + jQuery).
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    J2EE
    CSS
    Spring Framework
    SQL
    Java
    Spring Boot
    HTML
    JavaScript
    JBoss Seam
  • $35 hourly
    I have 7+ years of experience in software development. I have an understanding and knowledge of the object-oriented approach, software engineering principles, and concepts. I have taken part in software development projects with 5-6 team members, including code refactoring and optimization. I have mainly worked with: JavaEE, Oracle, MySQL, XML, JSP, Servlets, Spring, Hibernate, JUnit, JDBC, Angular, JavaScript, Node.JS, React, HTML, CSS
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Selenium
    Web Development
    CSS 3
    HTML5
    Spring Framework
    AngularJS
    Java
    Node.js
    JavaScript
  • $100 hourly
    Over 15 years of practical experience in the development and architecture of enterprise systems for web, mobile and desktop. As a senior backend software developer created a lot of reliable, bug-free, well-documented RESTful APIs, heavy background jobs, web services, etc. Guru in JAVA, strong experience in .NET, ASP.NET, and experience in web development. In the past 10 years, I designed, architectured, and delivered a lot of heavy-loaded, reliable systems and services. The main domains where I was involved are: Accounting(Double-entry bookkeeping, reconciliations, chargebacks) Billing(Clients invoicing) Payments(Integration with various PSPs: PayPal, Payoneer, Transfast, WellFargo, Skrill, Adyen(visa, mc, amex), etc. ) Compliance(Users identity and data verification) Authorization and authentication(oAuth2) Me and my team successfully finished legacy migrations\modernization projects, such as: Migrated desktop app to Web Migrated\modrinzed from legacy Perl monolit to java microservice architecture: user-payments related logic Accounting related logic Invoicing related logic Compliance related log Migrated to newer vendors APIs, file-based - SOAP - REST I understand how the blockchain cryptocurrencies work and have an experience to process payments from BTC, ETH, LTC, Tether, XMR I'm familiar with AWS infrastructure and can set up enterprise-level systems on it. I take full responsibility for the architecture and quality of the logic that is delivered by me and my team. In the future, I see myself as a product architect and an engineering lead in a successful product company.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Bitcoin
    AWS Application
    OAuth
    PostgreSQL Programming
    Payment Gateway Integration
    Spring Framework
    Docker
  • $40 hourly
    7+ years of experience
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Core Java
    Apache Solr
    Jakarta Server Pages
    Java
    JavaScript
    Java Servlet API
    HTML
    jQuery
    Spring Framework
  • $45 hourly
    👉 𝗖𝗹𝗶𝗰𝗸 𝗜𝗻𝘃𝗶𝘁𝗲 𝗯𝘂𝘁𝘁𝗼𝗻 𝗼𝗻 𝗺𝘆 𝗽𝗮𝗴𝗲 𝗮𝗻𝗱 𝗹𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸! I'm a Senior Java developer with a solid computer science background and strong analytical, communication, and soft skills. With 14+ years of experience in the financial sector from Fortune 500 list, including working for the largest Swiss investment bank and an Swiss investment fund (as well as for other business domains like Auctions, Consulting etc.), I specialize in delivering high-quality web and enterprise applications tailored to your business needs. 💼 𝗪𝗛𝗬 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘? – 14+ Years in Finance / Financial / Fintech Development: Extensive expertise in building secure and robust systems for the financial industry. – Full-Stack Proficiency: Skilled in Java, JavaScript, and TypeScript for seamless backend and frontend integration. – Cloud Expertise: Proficient with AWS ( ECS, SQS, SNS, Batch, Lambda, Bedrock, RDS, EC2, CloudWatch, S3 etc.) for scalable cloud solutions. – Comprehensive Technical Leadership: I also manage an Upwork agency, offering access to additional developers to scale your projects as needed. 🚀 𝗪𝗛𝗔𝗧 𝗜 𝗖𝗔𝗡 𝗗𝗢 𝗙𝗢𝗥 𝗬𝗢𝗨: – Custom Software Development: Build scalable, secure, and high-performing web or enterprise applications using Java, Spring, and AWS. – Design & Optimize System Architecture: Design robust and growth-ready systems with cutting-edge technologies. – Front-End Excellence: Create intuitive, user-friendly interfaces using Angular / AngularJS, Vue / Vue JS / Vue.JS, React / React JS / React.JS, Knockout.js. – Cloud Solutions: Implement cloud strategies with AWS services, ensuring cost-efficiency and scalability. – Database Management: Expert in both SQL ( PostgreSQL, MariaDB / MySQL ) and NoSQL ( Apache Cassandra, DynamoDB ) for data-intensive applications. 💪 𝗦𝗞𝗜𝗟𝗟𝗦: Programming Languages: Java 8 / 11 / 17, JavaScript, C/C++, PHP, Bash Frameworks & Libraries: Multithreading, Spring ( SpringBoot, Spring Boot, Spring MVC, SpringMVC, Spring Data, Spring Security ), JPA / Hibernate / Kundera, Akka, JMS ( IBM MQ ), REST, SOAP, Swagger, OpenAPI, REST API, JAX-RS, JAX-WS, AspectJ AOP, Vaadin 7 / 14+ / Flow, JUnit, EasyMock, Solr, Apache POI, JDBC, JSP / JSF, Play Framework, JavaMail, JavaCC, Ehcache Cloud & Infrastructure: AWS: ECS, SQS, SNS, Batch, Lambda, Bedrock, RDS, EC2, CloudWatch, S3, Docker, Hazelcast, Apache ZooKeeper Databases: RDBMS: MS SQL Server, PostgreSQL, MySQL / MariaDB, NoSQL: Apache Cassandra Version Control: Git, SVN, Mercurial Front-End Development: Angular / AngularJS, Ionic, Knockout.js, Vue.js, jQuery, HTML5, CSS, Twitter Bootstrap, Highcharts, Node.js / npm, SockJS / STOMP Build & Automation Tools: Maven, Gradle, Ant Operating Systems: Linux, Windows Cybersecurity: Web-security analysis, symmetric/asymmetric ciphers, PKI Business Domains: Fintech, Banking, Finance, Investment Funds, Payments, Consulting, CRM systems for HR, Car Auctions, Video Streaming 👉 𝗙𝗲𝘄 𝘄𝗼𝗿𝗱𝘀 𝗮𝗯𝗼𝘂𝘁 𝗺𝗲 Fond of developing applications and services using Java Springboot, acting Java backend developer but also as Java Full stack developer. Also I started Upwork agency here and act as PM, feel free to hire more developers if needed! 🎯 𝗟𝗲𝘁'𝘀 𝘀𝗵𝗮𝗽𝗲 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝗶𝗻𝘁𝗼 𝗮 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁. Contact me to get started! 📨
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    REST API
    JavaScript
    MySQL
    MariaDB
    PostgreSQL
    Vaadin
    SOAP
    Apache Kafka
    Amazon Web Services
    Akka
    Apache Cassandra
    Spring Security
    Spring Boot
    Java
  • $35 hourly
    If you see my profile, you're lucky! Because you have found someone who will make your project real, reliable and solve any type of problem. Together we will achieve required goals and build long-term effective cooperation. I am a resourceful, innovative, and competent developer with extensive experience. For a long hard 10 years of work, I can confidently call myself a full stack developer. ✔ [ Java ] [ Golang Go ] [Python][ API development ] [ Microservices ] [ REST ] [ gRPC ] ✔ [ iText ] [ POI ] [ JAXB ] [ XJC ] [ XPath ] [ Jackson ] [ mapstruct ] [ RMI ] ✔ [ Struts ] [ Spring ] [ DATA ] [ BOOT ] [ MVC ] [ Batch ] [ SAML ] [ Security ] [ Netty ] [ LightStreamer ] ✔ [ AngularJS ] [ Angular ] [ JavaScript ] [ jQuery ] [ HTML5 ] [ SocketIO ] [ SVG ] [ JSP ] ✔ [ Redis ] [ SQL ] [ MongoDB ] [ MySQL ] [ GraphQL ] [ Hibernate ] ✔ [ Docker ] [ NGINX] [ Apache ] [ Tomcat ] [ Jetty ] [ Server administration ] [ Load Balancing ] [ *NIX ] [ Security ] [ Networking ] [ Cloud ] [ Consul ] [ proftpd ] [ wekan ] [ gogh ] [ rocketchat ] ✔ [ AJAX ] [ JSON ] [ cURL ] [ Graph API ] [ Oauth 2.0 ] [ OOP ] [ UX/UI ] ✔ [ Jenkins ] [ Mockito ] [ Junit ] [ Selenium ] [ Junit ] [ Ganymed-ssh ] [ Quartz ] ✔ [ RabbitMQ ] [ ActiveMQ ] ✔ [ Android native ] ✔ [ Smart Contracts ] [ DApps ] [ Ethereum ] [ EOS ] [ ERC20 ] [ ERC721 ] [ Web3 ] [ MetaMask ] [ oraclize ] ✔ [information security] [iso 27001]
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Golang
    Spring Data
    Spring Security
    Java Servlet API
    Thymeleaf
    Android App Development
    Angular
    JavaFX
    Apache Struts
    Spring Framework
    Python
    JavaScript
    Java
    MongoDB
  • $35 hourly
    Are you looking for a Senior Full-Stack Software Engineer to implement a reliable scalable and performant solution with reasonable timing and pricing? Then you have come across the right profile. Backend development: ✅ Java backend development ✅ Kotlin backend development ✅ Building modern applications using Spring Framework, Spring Socal, Spring Data, Spring Cloud ✅ Microservice integration using Apache Camel, RabbitMQ ✅ Amazon Web Services experience including Amazon EC2, S3, SQS, SNS, Cloudfront ✅ Hosting applications on Digital Ocean ✅ Organizing data storage in Relational Database Management Systems such as SQL Server, MySQL, H2 Frontend development ✅ React.js Web development ✅ CSS, LESS, SASS ✅ JavaScript, jQuery ✅ React Hooks ✅ Redux ✅ BEM ✅ Webpack ✅ npm ✅ yarn ✅ ESLint Tools: ✅ Git and SVN version control systems ✅ Jira, Bitbucket, Gitlab ✅ TeamCity, Jenkins, GoCD Software developer with 8 years of experience. I have worked in teams of various sizes, both local and distributed. Worked on all steps of the software development lifecycle: both on projects from scratch and support. Experienced in troubleshooting production issues. Always eager to learn and share knowledge with co-workers. Aimed to develop a high-quality product and looking for suitable opportunities. I also have experience in leading teams and participating in the business development process.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    RESTful Architecture
    CSS
    JavaScript
    Java
    Spring Security
    SQL
    MySQL
    JDBC
    Spring Framework
  • $50 hourly
    I am a founder of FlexSolution company with a demonstrated history of working in the software development industry. Certified Alfresco Engineer! Skilled in Liferay, Kafka, Java, Javascript, CAS, LDAP, Maven, Hibernate, Spring Framework, Vaadin, GIT and so on. Graduated from the Kharkiv National University of Radioelectronics.
    vsuc_fltilesrefresh_TrophyIcon Hibernate
    Business Process Model & Notation
    Vaadin
    Node.js
    NestJS
    React
    Spring Framework
    SQL
    D3.js
    ExpressJS
    Redux
    React Native
    Java
    JavaScript
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