07/21/2026 updated
100 % available
Java Developer | Spring Boot | GCP | Microservices | Open to B2B Contracts (EU/EEA)
Brasov, Romania
Worldwide
Radioelectronics & Telecommunications, Technical University of MoldovaAbout me
Senior Java Engineer (6+ yrs) specialized in Spring Boot, Microservices & Cloud (GCP/AWS). Experienced in Banking, Logistics & FinTech. Open to remote B2B contract collaborations globally via Romanian PFA. Actively mastering Kotlin & advanced GCP. High-quality code guaranteed.
GCPJava (Programming Language)HibernatePostgreSQLMongoDBSpring CloudSpring BootGraphQLSpring JdbcRestful ApiSpring BatchDockerMicroservices
Java & Spring Boot Development
Over 6 years of experience developing high-quality software solutions using Java 11 and 17 as well as Spring Boot and Spring Security. Expertise in building high-performance, low-latency APIs and implementing asynchronous chunked transfer and multi-part streaming mechanisms.
Cloud & Infrastructure (GCP & AWS)
Proficiency in Google Cloud Platform including GCP Cloud Storage integration for secure distributed file hosting, as well as AWS. Hands-on experience with Docker, Openshift, Jenkins, Git, and Maven for CI/CD pipelines and infrastructure management.
Microservices Architecture & REST/GraphQL APIs
Extensive experience designing and developing microservices architectures to enhance scalability, executing monolith-to-microservices migrations, and building REST and GraphQL APIs using OpenAPI specifications.
Databases & Messaging
Strong knowledge of relational and NoSQL databases including PostgreSQL, MongoDB, and BigQuery. Experience with messaging systems such as Apache Kafka and Active MQ for event-driven architectures.
Secure Coding Practices
Implementation of secure coding standards using Spring Security, management of code reviews to maintain high codebase quality, and organization of security-focused knowledge transfer sessions.
Agile & Scrum Methodologies
Proficient in working within Agile and Scrum environments, fostering cross-functional team collaboration and driving operational efficiency across multiple industries including Banking, Finance, Automotive, and Logistics.
Kotlin & Python (Active Learning)
Actively expanding expertise in Kotlin and Python, complementing a strong Java background with modern language capabilities for broader software development use cases.
AI Coding Agents & Developer Tools
Familiarity with AI-assisted development tools including Claude Code, Junie, Copilot, and Gemini to enhance development productivity and code quality.
Frontend Technologies
Working knowledge of HTML, CSS, JavaScript, and React, enabling effective collaboration with frontend teams and full-stack contributions where needed.
Over 6 years of experience developing high-quality software solutions using Java 11 and 17 as well as Spring Boot and Spring Security. Expertise in building high-performance, low-latency APIs and implementing asynchronous chunked transfer and multi-part streaming mechanisms.
Cloud & Infrastructure (GCP & AWS)
Proficiency in Google Cloud Platform including GCP Cloud Storage integration for secure distributed file hosting, as well as AWS. Hands-on experience with Docker, Openshift, Jenkins, Git, and Maven for CI/CD pipelines and infrastructure management.
Microservices Architecture & REST/GraphQL APIs
Extensive experience designing and developing microservices architectures to enhance scalability, executing monolith-to-microservices migrations, and building REST and GraphQL APIs using OpenAPI specifications.
Databases & Messaging
Strong knowledge of relational and NoSQL databases including PostgreSQL, MongoDB, and BigQuery. Experience with messaging systems such as Apache Kafka and Active MQ for event-driven architectures.
Secure Coding Practices
Implementation of secure coding standards using Spring Security, management of code reviews to maintain high codebase quality, and organization of security-focused knowledge transfer sessions.
Agile & Scrum Methodologies
Proficient in working within Agile and Scrum environments, fostering cross-functional team collaboration and driving operational efficiency across multiple industries including Banking, Finance, Automotive, and Logistics.
Kotlin & Python (Active Learning)
Actively expanding expertise in Kotlin and Python, complementing a strong Java background with modern language capabilities for broader software development use cases.
AI Coding Agents & Developer Tools
Familiarity with AI-assisted development tools including Claude Code, Junie, Copilot, and Gemini to enhance development productivity and code quality.
Frontend Technologies
Working knowledge of HTML, CSS, JavaScript, and React, enabling effective collaboration with frontend teams and full-stack contributions where needed.
Experience
Professional experience5 - 10 years
Freelancer since2022
Languages
EnglishFluentRomanianNative speakerRussianNative speaker
Project history
Engineered a high-performance, low-latency API using Java 17 and Spring Boot to handle large file downloads under massive concurrent user traffic. Optimized memory footprint and system stability by implementing asynchronous chunked transfer and multi-part streaming mechanisms. Integrated GCP Cloud Storage for secure, distributed file hosting alongside a finely tuned PostgreSQL database for rapid metadata retrieval. Tech Stack: Java 17, Spring Boot, GCP, PostgreSQL, REST.
Developed high-quality digital solutions for an adult streaming service platform, executing monolith-to-microservices migrations. Conducted targeted debugging and performance resolutions.
Implemented technical solutions for Banking & Finance businesses using Java 17, Spring Boot 3, PostgreSQL, Kafka, and AWS. Transitioned legacy client applications to a modernized Java and Spring Boot stack. Designed and developed microservices architectures to enhance scalability. Utilized Jenkins for robust continuous integration and delivery.
Certificates
AWS Cloud Associate developer
Amazon Web Services2024
Java SE8 Associate Programmer
Oracle2018