Emmanuel BALLERY
Tech Lead & Architect, AI-augmented development (agents, MCP, Claude)
Cognitics Engineer ENSC – Bordeaux INP · 15+ years in web engineering
Expert engineer in web development and software architecture. 15 years designing complex, high-volume business applications (SaaS, ERP, PIM) for luxury and retail key accounts (LVMH, Lacoste, Le Coq Sportif) — contractual 99% SLA, catalogues of thousands of products, 1M+ data points validated per day. Triple Back/Front/Ops skill set with a strong DevOps and Security culture (ex-DGSE). Passionate about software quality (Clean Code) and mentoring engineering teams to maximise velocity and reliability.
Targeting a salaried engineering leadership or software architect role; x10 stays active for freelance engagements. Based in Metz: on-site or hybrid (Metz, Luxembourg), hybrid in Paris or fully remote.
Experience
Senior Full-Stack Engineer · Technical Referent
Mevia — Alumnforce (Paris) — Alumnforce SaaS (alumni network management, 350 institutions). Fully remote role (from Metz), deliberately focused on technical impact: member of the technical leadership committee (4 senior referents) in a shared-governance model, no central CTO.
- Technical vision and evolution of the Alumnforce platform (architecture, scalability, security).
- Engineering standards: CI/CD, testing, quality, observability.
- Applied AI: built (in 1 month) an AI plugin wired to Jira, Jenkins and GitLab — resolves tickets, syncs with the product team and generates merge-ready MRs; 100% of PRs AI-assisted.
- Cross-team technical referent (Symfony) and developer mentoring.
Stack · Claude, PHP, Symfony, CI/CD, AI.
CTPO
Sinfin — SaaS PIM/DAM/CMS/OMS product — Development of a high-volume SaaS product.
- Clients: high-availability platforms for LVMH, Lacoste, Le Coq Sportif, ESTAC, etc. — contractual 99% SLA, catalogues of thousands of products.
- Technical expertise: full migration to Symfony 7 and API Platform in 4 months (progressive, zero downtime); performance optimisation on massive databases (Messenger, workers, caching at every level); AWS infrastructure costs cut by over 70%.
- Technical leadership: training and upskilling around ten junior developers. Strict code standards, generalised use of AI and code reviews.
- DevOps & industrialisation: CI/CD (GitLab CI) on every MR and production tag — delivery lead time cut from several weeks to under 24 h, sub-minute deploys, 300+ deployments over 2 years.
Stack · Claude, PHP, Symfony, API Platform, React, Redis, Docker, AWS.
Co-founder & CTO
Timcity — From-scratch creation of a real-estate ERP SaaS product: 26 SCCV entities of a single property developer onboarded (full accounting and construction-site tracking) in a few months.
- From-scratch design: full choice of architecture and technologies. Secure RESTful API and reactive SPA frontend.
- Developer Experience (DX): high-performance local dev environment (Docker) and QA tooling (linting, PHPUnit unit tests).
- Product engineering: translating business needs into scalable technical solutions. Complex features (accounting, document management, e-signature, invoicing, etc.).
Stack · Symfony, API Platform, Vue.js, MySQL, GitHub Actions.
Senior Web Architect & Consultant
Independent practice — Full-time bespoke application development. Dual entrepreneur/engineer hat.
- Orange (recurring client since 2015), CNRS: consulting and development on technically demanding projects (Symfony, API Platform, React, Angular). Performance audits and optimisation of existing architectures.
- Apperture for Moria, URGO: critical business applications for the medical and surgical sector. Strict regulatory constraints and digitisation of industrial processes (Symfony).
- Management application for the French Hunting Federation: modernisation of federal management tools and processing of large member-data volumes (Symfony).
- Business ERP for real estate (PROJIM): bespoke tools for property development (Symfony, API Platform).
- Teaching & mentoring (HITEMA, 3 years / 4 cohorts): lecturer in engineering schools. Training students on modern web architectures, best practices and DevOps (PHP, Symfony).
Full Stack Web Engineer / R&D
DGSE — Technical lead of a team of around ten — design and development of data-analysis tools in a high-confidentiality context (Symfony).
- Security & robustness: development under strong security constraints (OWASP, encryption).
- Standardisation: development conventions and internal libraries to unify the department's projects (PHP libraries, Symfony bundles, starter pack).
Full Stack Web Engineer
Domicalis — e-health SaaS tool (HAD) — Creation of an e-health SaaS tool for home hospitalisation.
- Architecture & product (CTPO role): design of the platform core, integration of heterogeneous data flows (connected health devices), patient-data integrity and translation of medical needs into specifications and ergonomic UX (PHP, Symfony).
- Management: operational leadership of a team of 10, plus development processes and quality follow-up.