Hire the Best Java Developers
in Romania

I build custom systems that help you get a better view of your business. No matter where your data is stored, we will find a way to aggregate it and improve your workflow. I focus on customer satisfaction - quick response time, quality work and proactive attitude. No project is too small, no task is too complex - I will help you get the layout and functionality you need. Let's have a chat!

👋 Hello and welcome! Andrei Petrascu here - Java Backend Developer - Full Stack Developer - Computer Science Engineer - Software Engineer . 🌾 Over 5 years of experience. 💡 Building scalable, cloud-ready web applications for individuals, startups and companies . . 🚀 I Can Help You With - Backend Development with Java 17/21, Spring Boot, Spring Security, JPA, Hibernate, Quarkus - API Design & Integration (REST, SOAP, Binance API, custom APIs) - Database Management — PostgreSQL, MySQL, Liquibase, JPA, Hibernate - Frontend Development with React, Next.js, TailwindCSS, TypeScript - Cloud Deployment — AWS (aws s3 buckets), Vercel, Render, Heroku - Unit Testing — JUnit, Mockito, JaCoCo, - Full Stack Development: web apps development, web applications, integration with 3rd-party APIs (Payments, Trading, AI tools) . . 🤝 Let’s Build Something Great I’m detail-oriented, proactive, and passionate about building reliable, maintainable systems. Let’s discuss your idea — I’ll help you turn it into a high-quality, working product. . . 🌍 Projects auronity.ai — Java backend for AI chat & analytics platform; java backend developer, API integration, spring security, user management, chat management, ai integration, liquibase, postgres, swagger, etc. . agrocentru.ro — Online marketplace connecting buyers and sellers (Java, Spring Boot, Postgres, Liquibase, React, Tailwind, Next.js, AWS, AWS S3 buckets, Vercel, Render). . BMW — Worked at BMW TechWorks Romania using Java, Quarkus, Azure Services, Terraform, IaC, SonarQube, CI/CD, ArgoCD, PostgreSQL, Kafka, Docker, Git, OIDC, and more; Java backend development for enterprise applications. . LMX (UK) (now Connectbase USA) — Java Backend developer. Developed and integrated SOAP and REST APIs for a global telecommunications access platform. . Binance Trading Bots — Startup. Automated trading systems for crypto markets. I implemented crypto trading bots using Binance API, API Integration, Automated Trading Bots for Binance. Binance Spot, Binance Futures . Zub — Dental web app with automated image detection (disease detection and treatment recommendations from X-ray images using AI), patient management. . . 🧠 Tech Stack • Java 17, 21 • Spring Boot Framework • Frontend: React, Tailwind, Next.js • AWS, S3 buckets, vercel, render • Web Services: SOAP, REST • Agile Methodology (Scrum, Jira, Confluence) • Git (GitHub, GitLab, Bitbucket) • Unit Testing: JUnit, Mockito • Debugging • JPA, Hibernate • MySQL, PostgreSQL • Data Structures and Algorithms • Heroku • Binance API, API Integration, Automated Trading Bots for Binance . . . #Full Stack: Java, Java 17, Java 21, Java Developer, Java Backend Developer, Java Spring Boot, Spring Boot, Spring Framework, Spring Boot Developer, Spring Security, Spring Data JPA, Spring MVC, Backend Development, Backend Developer, Full Stack Developer, Full Stack Development, Software Engineer, Software Development, Computer Science, Web Development, Web Developer, API Development, API Integration, REST API, RESTful API, SOAP API, Microservices, Microservices Architecture, PostgreSQL, MySQL, Database Design, Database Management, SQL, Hibernate, JPA, Liquibase, Database Migration, React, React Developer, Next.js, Next.js Developer, Frontend Development, JavaScript, TypeScript, Tailwind CSS, TailwindCSS, Responsive Web Design, Cloud Computing, AWS, Amazon Web Services, AWS S3, Cloud Deployment, Vercel, Render, Heroku, Cloud Architecture, Quarkus, Azure, Azure Services, Docker, Containerization, Terraform, Infrastructure as Code, CI/CD, Continuous Integration, Continuous Deployment, ArgoCD, SonarQube, Git, GitHub, GitLab, Bitbucket, Version Control, Unit Testing, JUnit, Mockito, Test-Driven Development, TDD, Integration Testing, JaCoCo, Code Coverage, Agile Development, Scrum, Agile Methodology, Jira, Confluence, Project Management, Binance API, Trading Bot, Automated Trading, Cryptocurrency, Crypto Trading, Binance Spot, Binance Futures, API Integration Specialist, Third-Party API Integration, Payment Gateway Integration, AI Integration, Machine Learning Integration, Authentication, OAuth, OIDC, User Management, Security, Data Structures, Algorithms, Problem Solving, OOP, Object-Oriented Programming, Design Patterns, Enterprise Applications, Scalable Applications, Web Applications, SaaS Development, Startup Development, E-commerce, Marketplace Development, Healthcare Software, Fintech, Trading Platform, Kafka, Message Queue, Event-Driven Architecture, Maven, Gradle, Swagger, API Documentation, Code Quality, Clean Code, Debugging, Performance Optimization, Telecommunications, Enterprise Software, B2B Applications, Custom Software Development, Software Architecture, System Design, Backend Architecture, Server-Side Development, Java EE, Jakarta EE, JSON, XML, HTTPS, Web Security, Data Privacy, GDPR Compliance, Remote Work, Freelance Developer, Contract Developer, Long-term Projects, Short-term Projects.

I'm a full stack JavaScript developer. I have experience working with ReactJS and NodeJS. I'm familiar with the WebExtensions API and I've created a lot of browser extensions. I'm also a Java developer and I'm familiar with the Android SDK.

PROFILE Motivated Computer Science graduate with hands-on experience in Java and Flutter development, seeking to expand my expertise and contribute to innovative projects. I approach problems from multiple perspectives to develop the most effective solutions. VOLUNTEERING AND PERSONAL EXPERIENCE Microsoft Learn Student Ambassadors - Technology Dep. Member Dec 2020 - Nov 2021 Collaborated with the team managing websites and platforms for student interactions. Notable project: Developed a Feedback and Rating Platform for student activities. Romanian Water Polo Federation - Web Developer (WordPress) Nov 2020 - Mar 2021 Volunteered with a team of students to revamp the Romanian Water Polo Federation's website and image using WordPress. EY Tech Challenge Hackathon - teamwork Developed a React Native app as part of a team to improve the quality of life in Bucharest using the 5-minute city approach, highlighting key objectives near the user. Axes Software Hackathon - solowork

Hello, as a Full Stack Web Developer I specialize in creating dynamic, responsive, and scalable web applications across various industries. My expertise encompasses the entire spectrum of web development, from front-end to back-end technologies, and I am always eager to stay current with the latest trends and innovations. Key skills: - Programming languages: JavaScript, TypeScript, CSS, HTML, Java, SQL - Frontend: React.js, Next.js - Backend: Node.js, Express.js - Database: PostgreSQL, MongoDB, MySQL, Firebase, Supabase - Infrastructure / CI-CD: Git, GitLab CI, GitHub actions, Bitbucket, Docker, NGINX, Laragon - Cloud: Microsoft Azure, Google Cloud

💡 Transforming Ideas into Scalable Web Applications 💡 I am a results-driven Full-Stack Developer with 3 years of experience delivering high-quality web applications. Having worked at IBM, I bring enterprise-level expertise in building robust, secure, and efficient systems. 🔹 Frontend Expertise: Angular | JavaScript | TypeScript | HTML | CSS 🔹 Backend Mastery: Java | Spring Boot | REST APIs | SQL | JPA | Hibernate 🔹 Why Work With Me? ✔️ Clean, maintainable, and scalable code ✔️ Seamless API integrations ✔️ Performance optimization for fast, efficient applications ✔️ Reliable communication and on-time delivery I am passionate about helping businesses bring their ideas to life through technology. Whether you need a custom web app, API development, or a full-stack solution, I am here to deliver. Let’s build something amazing together! 🚀 📩 Invite me to your project, and let’s discuss how I can help.