Freelancer profile translated to English.
Back to original languageAbout Alexandre
I act as aCTO, Senior Tech Lead, or technical reinforcementfor startups, scale-ups, and product teams facing challenges in structuring, accelerating, or stabilizing their development.
I work in contexts where quick decisions, delivering what matters, and making pragmatic compromises between time-to-market, technical debt, and scalability are crucial. My approach is intentionally **hands-on**: I am directly involved in the code, particularly on the product core, architecture, performance, and reliability.
I frequently work in constrained environments: **small teams, limited resources, rapid growth, load peaks, or production incidents**. My role is to structure the technology to serve the product, without unnecessarily burdening processes, while upskilling the team.
At the interface between **product, business, and technology**, I transform concrete needs into deliverable solutions. I also know when to say no when a request puts the product, quality, or team at risk.
My approach favors **simple, robust, and scalable architectures**, with particular attention to reliability, observability, and execution.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lille (up to 50km)
Experience
- VoLogCTO / Product & Tech Lead - Volog (SaaS)ENTERTAINMENT AND LEISUREDecember 2025 - Today (8 months)Paris, FranceDesign, development, and operation of a productivity-orientedSaaSproduct, from concept to production, with real usage and active users.**Responsibilities**:- Definition of the product vision and functional/technical roadmap- Design of the application architecture and APIs- Backend development and structuring of the product core- Deployment, monitoring, incident management, and reliability- Continuous arbitration between time-to-market, technical debt, and scalability**AI & Advanced Features**:- Integration of AI and LLM components for concrete use cases: semantic search, user assistance, and content exploitation- Implementation of RAG (Retrieval-Augmented Generation) approaches, focusing on source quality, performance, and response relevance- Management of operational costs, latency, and infrastructure impacts related to AI usage- Particular attention to data security and seamless integration of AI into an existing architecture**Context**:- Product designed, launched, and operated in production, with real constraints on costs, performance, reliability, and operations.- Rapid iterations based on concrete user feedback- Pragmatic approach: AI is used when it brings real product value, without overcomplicating the architecture.
- StadiumGOCTOSPORTSFebruary 2023 - Today (3 years and 6 months)Paris, FranceCTO at a carpooling SaaS startup, with a small technical team. I am at the heart of the product to design, build, and evolve a critical platform focused on real usage and volume.Product Vision & ArchitectureDefinition of robust architectures for transactional platforms: user matching, trip management, payments, real-time notifications, scalability, and resilience. Pragmatic technical choices focused on reliability and performance.Development & ExecutionDaily involvement in the code, particularly on the core business: carpooling logic, backend performance, APIs, security, and data quality. Code reviews, resolution of complex issues, continuous improvement.Technical LeadershipStructuring the work of a small team: prioritization, functional breakdown, technical debt management. Upskilling developers and maintaining a high level of quality without excessive process.Product & Business InterfaceTranslating field challenges (user adoption, load peaks, regulatory constraints) into concrete technical solutions. Ability to challenge requests and optimize time-to-market.Reliability & OperationsImplementing the fundamentals: CI/CD, monitoring, incident management, security, backups, and essential documentation.
- WidopWeb Developer - LeadDIGITAL AND ITSeptember 2017 - December 2022 (5 years and 3 months)Lille, FranceSeveral missions for various clients of Wid'op as a Senior / Lead Web Developer. Primarily Symfony / Laravel.- Pumpkin- Picomto- PicwicToys- H2O at Home- ImmoWeb- CutMeGo- Cuvelier Fauvarque- etc.
Reviews
Recommendations
JGMR
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Education
- Professional Bachelor's Degree - E-commerceIUT de Calais2010