Hire Top Freelance
JavaScript Developers
in Belgium

Principal Java developer and technical lead with over 13 years of industry experience in designing, developing, and leading Java/J2EE projects across diverse sectors, including telephony, banking, IoT, healthcare, and manufacturing. I led and mentored teams of 4+ developers and managed the entire software development life cycle (SDLC) while consistently prioritizing code quality. demonstrated rapid proficiency in adapting to and mastering new technologies. Skilled in automated testing, leveraging tools such as JUnit, Integration, Wiremock, and Testcontainers to ensure robust software quality. Proficient in adhering to the SOLID principles and employing clean coding methodologies. Key technical expertise includes Java 17, Spring Boot, microservices, Hibernate, Maven, Git, CI/CD, Docker, Kubernetes, Postgres, MySQL, CosmosDB, JUnit, TDD, BDD, DDD, and microservices.

JavaScriptAzureRESTful APIAngularApache KafkaSpring BootApache MavenDevOpsElasticsearchJUnitNoSQLGitSpringSQLJava

I drive on binary highways.

JavaScriptAngular 2Web DevelopmentReactGoogle Cloud PlatformObjective-CFull StackAssemblyC

I have 20 years of experience in tech (Python, JS/TS, full stack web, reverse engineering, security, AI...), started 7 companies, dealt with a massive range of different problems at different scales and worn every single hat you can think of. Highly versatile in tech, business, finance, and legal compliance. I am six domain experts in one. I find your unknowns and solve them. Book time with me [here](https://cal.com/jleclanche). Background ---------- * Currently: Founder & CEO @ [Seven Seed](https://sevenseed.eu/), Director @ [Ingram](https://ingram.tech) * Previously: Co-founder & CTO @ [Ola Financial Technologies](https://olainvierte.com) * Previously: CTO @ [HearthSim](https://hearthsim.net/), Int. CEO @ [Magic Find](https://www.magicfind.us) * Programming in Open Source since 2006. * Consultant since 2012. Specialized in FinTech since 2016. Solutions engineering & Software architecture. Certified Stripe partner. [Website](https://leclan.ch) · [LinkedIn](https://linkedin.com/in/jleclanche) · [Book a meeting](https://cal.com/jleclanche)

JavaScriptPayment gatewayStripeReactAWS (Amazon Web Services)System AdministrationFinTechTypeScriptDatabase AdministrationPython