Haytham T.

At The Elect Coders (agency / product studio), I work as a Lead Developer / Full-Stack Software Engineer on Web & SaaS projects (B2B, B2C, e-commerce, business platforms): scoping, design, architecture, development, production deployment, and maintenance. I handle the complete cycle: backend (PHP, modern frameworks, REST/JSON APIs, webhooks), frontend (JavaScript/TypeScript, modern frameworks), SQL/NoSQL databases (modeling, queries, optimization), quality (testing, refactoring, debugging), performance (response time, asset optimization), security (JWT/OAuth auth, RBAC, hardening, GDPR best practices), and industrialization (Git, CI/CD, Docker, staging/prod environments, cloud deployment like Vercel / Railway).

In parallel, I designed and developed an AI coaching platform (sports & nutrition) from scratch: API-first architecture, dashboards, business rules engine, personalized content generation, and LLM integration via OpenAI (GPT-4 / GPT-4o). My applied AI engineering approach focuses on production reliability: structured prompt engineering, strict JSON formats usable by the backend, guardrails, consistency validations, error control, and cost optimization (token reduction, output control, workflow robustness). Experienced with remote work and international clients (France / Switzerland), I deliver production-ready, documented, and maintainable features.

At TheCodingMachine (remote – Paris), I worked as a Full-Stack Symfony / Nuxt.js Developer on business software (Envie Autonomie project): backend + frontend development, design of REST APIs and administration screens, and delivery of operation-oriented features.

I set up the local environment (Docker/WSL, front/back configuration), performed login/signup flow tests, then developed Admin & User dashboards (KPIs, charts, filters, exports, operational views). On the business side, I implemented modules for equipment management, routes, transfers/recoveries, spare parts, and workflows (statuses, steps, labels). I also created dedicated statistics endpoints, fixed bugs, and handled Product/QA/Design feedback in an Agile environment.

At MIXIT7 (remote – Paris), I rapidly evolved from Full-Stack Developer to Technical Lead, driving delivery on several web & e-commerce projects (B2B/B2C) with high quality and production deployment requirements. I managed the complete cycle: requirements analysis, technical breakdown, PHP backend development (CakePHP / CodeIgniter), JavaScript/Twig/HTML/CSS frontend, integrations (transactional/marketing emails, webhooks), MySQL management, incident correction, legacy refactoring, performance optimization, and deployments.

On products with high traffic and business constraints, I led results-oriented initiatives: automation of abandoned cart reminders (tracking/events/workflows via Sendinblue), redesign of product generation (HD/web image optimization, disk space reduction) with a measured improvement of -60% in generation time, implementation and stabilization of a pre-production environment (Git, SSH, BDD, Plesk), and server debugging.

I also led the evolution of a high-end configurator: maintenance, new features (filtering, customization, quote generation), refactoring of the quote system (dynamic groups/orders/renaming, PDF/Excel exports), complex UI bug fixes (responsive, rendering slowness, overlays, product zoom), and UI/UX redesign (flows, steps, engravings, partner collections), with +25% faster loading after redesign.

As a technical referent, I coordinated exchanges with product/QA/vendors, secured architectural choices, and ensured regular “production-ready” deliveries (quality, performance, maintainability).