Freelancer profile translated to English.
Back to original languageAbout Julien
Looking for a backend developer to take over or start your project?
I am Julien Janvier, a software engineer with over 15 years of experience in sectors such as e-commerce and banking.
I have had the opportunity to work with major clients like Société Générale, Groupama, Royal Canin, and the European Commission; as well as with very successful French startups like Akeneo, Convelio, Edflex, Skaleet, and Oneytrust.
I can assist you with:
- Creating a Minimum Viable Product to test your market
- Taking over a legacy project to fix bugs that annoy your clients and ensure the application's longevity for future feature development
- Integrating APIs into your information system to connect different applications or retrieve Key Performance Indicators
- Automating your daily tasks to allow you to focus on what truly adds value for you
Shall we discuss your project?
Contact me via message on Malt.
I will be available full-time starting Monday, December 4th.
Have a great day!
French
Native or bilingual
English
Fluent
Can work on-site
Nantes (up to 50km), Paris (up to 50km), Bordeaux (up to 50km), Marseille (up to 50km), Lille (up to 50km)
Experience
- OneytrustTechnical LeadE-COMMERCEJanuary 2024 - August 2024 (7 months)Oneytrust is a startup specializing in fraud detection for e-merchants. It has prestigious clients such as Galeries Lafayette, Boulanger, and Oney. Its SaaS solution scores 1.5 billion transactions per year and prevents millions of euros in fraud losses for its clients.I joined the Parcours Marchand team to improve and stabilize the platform:- Created a Continuous Integration pipeline to drastically reduce bugs, rollbacks, and regressions (from 5+ rollbacks/regressions per release to 0)- Transitioned from a manual quarterly release (~40 actions) to a semi-automated weekly release through simplification, automation, and a Continuous Delivery pipeline- Initiated the Cloud Native transition to Azure (logs, delivery, infrastructure, environment variables)- Initiated the transition from Oracle database to PostgreSQL- Phased decommissioning of legacy systems- Streamlined project installation- Decoupled business logic from infrastructure using Hexagonal Architecture- Updated dependencies and security dependencies
- AkeneoTechnical CoachSOFTWARE PUBLISHINGMay 2023 - October 2023 (5 months)Nantes, FranceAkeneo is the leading startup in Product Information Management (PIM) and product data intelligence to improve customer experience. Akeneo has over 700 prestigious French and international clients such as Legallais, Intersport, Myer, and Tarkett.Coaching 5 teams of 5 to 6 developers in discovering and learning Test Driven Development. The training is participatory, collaborative, and highly practice-oriented.The topics covered throughout the training are:- How to write readable and maintainable tests?- What is the link between tests and architecture?- Why is TDD an effective way to code?- What is Red/Green/Refactor?- How to design code incrementally?
- SkaleetSenior Software EngineerBANKING AND INSURANCEAugust 2022 - December 2023 (1 year and 3 months)Skaleet is a startup in the banking sector that provides banking institutions with a SaaS platform to launch innovative new financial services. Skaleet sells its solution to over 40 regulated financial institutions and manages over 10 million accounts worldwide.I joined the core team to provide a turnkey consumer credit offering.
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Education
- Computer Engineering DegreePolytechnic School of the University of Tours2007
- Master 2 Business Administration of ToursInstitute of Business Administration2008
Certifications
- Technical certificationAkeneo
- Business certificationAkeneo