Saif Hendili
Full Stack Developer · MERN · Blockchain · SaaS · Founder
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About
Full Stack Developer and SaaS Founder with 5+ years building production-grade platforms across blockchain, e-commerce, health-tech, and logistics. At ARTMO I improved performance by 60% (800 ms → 320 ms) and built the Masterclass feature that enabled €30K+ in platform revenue across 10,000+ artists.
At Mirai
Tech — a French dev agency — I shipped 4 client products end-to-end (Buzzly, Calista, MMCorps, Findeez). I recently founded Trackili.tn — an AI-powered CRM with 10 paying merchants, integrating WhatsApp, Shopify, and Jax Delivery into one dashboard for Tunisian e-commerce sellers. Seeking senior/lead full-stack or founding-engineer roles in Europe or Canada.
Experience
Founder & Full Stack Developer - Trackili.tn - Tunisia
(2026-05)
- Founded Trackili.tn — a CRM/SaaS that unifies WhatsApp Business, Instagram DMs, Messenger, and Shopify orders into a single kanban dashboard for Tunisian e-commerce sellers.
- Integrated Gemini AI to auto-extract customer name, phone, city, and purchase intent from Arabic, French, and Darija messages — cutting manual order entry to near zero.
- Built a bi-directional Shopify webhook integration: products and orders sync in real time so sellers manage fulfilment without leaving the platform.
- Delivered geographic analytics by governorate — order volume, return rates, ad ROI calculator — giving sellers precise data on where to allocate ad budget.
- Sole founder: defined product roadmap, designed full architecture, wrote all code, and managed infrastructure — reached 10 paying merchants within weeks of launch.
Full Stack Developer - Mirai Tech Solutions - France (Remote)
(2025-06 - 2026-05)
- Contributed as one of 5–7 engineers at a French dev agency ranked #1 on Codeur.com (395,000+ providers), delivering web & mobile SaaS products for startup clients.
- Designed and deployed 5+ scalable client web applications serving 5,000+ users with >99.9% uptime SLA.
- Optimised CI/CD pipelines (GitHub Actions + Docker), cutting release cycle by 30% and reducing manual deployment errors.
- Refactored REST API layer, reducing average response time by 45% through query optimisation and Redis caching.
Full Stack Developer (Internship → Permanent Contract) - ARTMO - Germany (Remote)
(2023-02 - 2025-04)
- Part of a 5-person engineering team building a blockchain marketplace for 10,000+ artists across 200+ countries: Ethereum smart contracts, MetaMask & WalletConnect crypto payments.
- Achieved 60% performance boost (800 ms → 320 ms) through Node.js profiling, MongoDB index optimisation, and React lazy-loading / code-splitting.
- Built a 500K-record Elasticsearch-powered search engine enabling instant artist and artwork discovery.
- Designed 10+ REST APIs processing 50,000+ requests/day with rate-limiting, JWT auth, and zero security incidents.
- Built the Masterclass feature end-to-end: artists stream live courses, learners purchase access to attend and ask questions in real time — generating €30K+ in new platform revenue.
Full Stack Developer - New-Tec - Tunisia
(2021-02 - 2023-02)
- Built 12+ internal business applications (HR, payroll, finance, operations) serving 500+ staff across 3 departments.
- Integrated 15+ third-party APIs (Stripe, Google Workspace, CRM) boosting operational efficiency by 40%.
- Designed an RBAC backend architecture; 0 security vulnerabilities detected in third-party audits.
- Maintained systems processing 100,000+ monthly financial transactions with full audit-trail logging.
Full Stack Developer - Freelance - Tunisia
(2020-06 - 2021-01)
- Sun Logistics — built a full-stack transit & finance platform: invoice management, TLA tracking, freight cost calculation, and document generation, cutting processing time by 35%.
- Fish Online Store — delivered a full e-commerce platform for a seafood seller with product catalogue, secure payments, and real-time inventory management.
- E-Recruitment Platform — built an internal hiring system for a company to manage intern and worker recruitment end-to-end: applications, screening, scheduling, and onboarding — reducing the hiring cycle by 50%.
Education
Engineering Degree in Computer Science - Computer Science - ESPRIT — École Supérieure Privée d'Ingénierie et de Technologies (2023)
Bachelor's Degree in Management Information Systems - Management Information Systems - FSEG — Faculté des Sciences Économiques et de Gestion (2020)
