Freelancer profile translated to English.
Back to original languageAbout Corentin
My name is Corentin, from a French engineering school, I have several years of experience in the IT sector, whether in strategic consulting for the IdF region or technical in SG's credit applications. I have also created several applications in my free time (SaaS for complete analysis of applications on the mainframe, SaaS for intermediation to improve context via custom MCP generation from parsing and complete analysis of Git repos, and other mobile applications)
I master several programming languages and offer cleaning and context improvement services for vibe coder solopreneurs. I will take over your ongoing projects and implement all best practices to boost your agents' results on your product. Give more life to your ideas without having to revisit your features due to contextual issues.
French
Native or bilingual
English
Fluent
Spanish
Conversational
German
Conversational
Can work on-site
Paris (up to 50km)
Experience
- Covalyo (covalyo.com)Founder – AI-powered B2B SaaS PlatformJanuary 2025 - Today (1 year and 6 months)• • Took an AI product from concept to shipped, external-facing platform solo: LLMs that extract, document, and translate business logic from legacy COBOL systems for banks and insurers• • Designed and tuned the agent loops and prompt pipelines, then built an evaluation harness that pushed output quality to 95/100 on complex financial code – correctness and reproducibility as a first-class concern• • Built the full stack and operate it end-to-end: frontend, backend services, hosting (Vercel, Railway, AWS), database (Neon/PostgreSQL), CI/CD (GitHub)• • Engineered a multi-agent development workflow (Claude Code): role-specialized sub-agents, custom slash commands, hook based guardrails protecting critical files, and token-usage optimizationStack: Python, LLM APIs (Claude, GPT), agent frameworks, prompt engineering, evals, Vercel, AWS, Docker, GitHub
- StorizzzCo-founder – AI-powered Mobile ApplicationDecember 2023 - August 2025 (1 year and 8 months)France• • Co-built and shipped a consumer app generating personalized content with LLM/NLP, iterating on real user feedback• • Architected the agent/API integration layer connecting a Fluter frontend to multiple LLM providers in
- Sopra Steria (Société Générale)Software Engineer – Financial ServicesFebruary 2026 - Today (5 months)Lille, France• • Build and maintain mission-critical banking applications where reliability and correctness are non-negotiable• • Diagnose and resolve complex production incidents on transactional flows; translate business logic into specs• • Ship into a high-availability production environment alongside business and technical teams in AgileStack: Java, SQL, COBOL, DB2, JCL, CICS, production reliability
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Education
- Azure AI Fundamentals (AI-900)Microsoft2026Azure AI Fundamentals (AI-900)
- Mainframe & Java/JEE Intensive ProgramACTIV' CONSULT' TRAINING2026Mainframe & Java/JEE Intensive Program