Freelancer profile translated to English.

Description

Experienced full stack web developer with 8 years of experience, specializing in back-end development in Java (Spring Boot) and microservices architectures. Expert in cloud and DevOps technologies (Kubernetes, Docker, GitLab CI), with a strong command of modern front-end technologies, particularly Angular. Experience in technical leadership and team mentoring. Recognized technical author with two books published by Éditions ENI. Curious and rigorous, I am looking for challenging assignments in demanding technical environments where I can leverage my skills.

Languages

French
Native or bilingual
English
Fluent
Ukrainian
Conversational

Workplace preferences

Remote only

Primarily works remotely

Michelin
Full Stack Java/Angular Developer - Tech Lead
January 2023 - November 2025 (2 years and 10 months)
Building an internal SaaS to manage Michelin products with a data-driven marketing approach. Tech Lead responsibilities for a team of 4 developers and 2 Product Owners.
• Developing REST APIs with Java 17 on a Spring Boot microservices architecture
• Technical leadership: system architecture, code review, team mentoring, and strategic technical decision-making
• Kubernetes orchestration in production: deployment, configuration, pod scaling, monitoring with Grafana and Prometheus (previously Splunk)
• Implementing CI/CD pipelines with GitLab CI: one-click deployment to production and pre-production (4 pods), automation of PostgreSQL database migrations and dumps
• Integrating Kafka into the ecosystem: consuming and producing messages with Apache Avro schema registry, refactoring a data pipeline in coordination with the BI team
• Performance optimization: load testing with Gatling, PostgreSQL tuning, source code analysis and optimization
• Angular front-end development: creating and updating web components to develop new features
• Mentoring a junior developer on an ancillary project: intensive pair programming, technical presentations on Kafka and system architecture, in-depth code reviews
Technical stack: Java 17, Spring Boot, microservices architecture, Apache Kafka, Apache Avro, Kubernetes, Docker, GitLab CI, PostgreSQL, Grafana, Prometheus, Angular, Gatling
Kubernetes Gitlab CI/CD Java 21 Spring boot PostgreSQL
SAP Concur
Java/SQL Developer
January 2022 - January 2023 (1 year)
Java development of a web application for managing removals and indemnities for the French government. Team of 6 developers and 2 Product Owners.
• Java 11 development with custom SAP framework and Hibernate for the persistence layer
• Development of numerous complex PL/SQL functions, procedures, and scripts for managing and updating data in an Oracle database
• Front-end redesign with Ext JS and SCSS
Java 21 Spring boot Oracle PL/SQL Ext.js
DoubleTrade
Backend Developer
July 2019 - January 2022 (2 years and 6 months)
Development of a business intelligence SaaS for public procurement in France. Evolution from junior developer to application maintainer.
• Large-scale microservices architecture: 50 microservices communicating via Apache Kafka (asynchronous) and Feign (synchronous)
• Development of numerous REST APIs, including a complete user statistics feature
• PostgreSQL query optimization: identification and resolution of slow queries to improve performance
• Implementation of continuous integration with GitLab CI, code review, and continuous improvement of code quality