Every project shipped.
Six years across logistics, HRTech, TravelTech, fitness, ed-tech, and consultancy. These are the 9 projects that actually went to production — grouped by era and domain. Every project has its own details page; case studies cover my role at the employer. See also About, Experience and Articles.
What projects has Lamjed Gaidi worked on?
Lamjed Gaidi is a senior full-stack engineer in Tunis. Since 2021 he has delivered web, mobile and backend products in logistics (IntiGo, including an LLM agent called Argus, an e-commerce module in staging pilot, Shopify, WooCommerce and PrestaShop integrations, and a family of four iOS apps and one Android app), PropTech (Lodgo), AI fitness coaching (FitIn, RAG on React Native), TravelTech (24Resa), HR technology (Mindquest) and EdTech (Qramer). The table below gives each project's context, skills and verified outcomes.
| Project | Context and period | What he built | Skills and technologies | Outcome and status |
|---|---|---|---|---|
| Argus (LLM operations agent) Full Stack Software Engineer (CDI) | IntiGo, last-mile delivery, Tunisia April 2026 to present | A tool-calling LLM agent for sales, marketing and operations triage: Claude for reasoning, local Gemma and Qwen models through Ollama for privacy-sensitive data, MCP tools over a read-only data replica, and human approval before any action. | Claude API, Ollama, MCP, Tool calling, Human-in-the-loop, Python, TypeScript | Email-triage V1 is in use at IntiGo; further modules are planned. In use (V1), more modules planned |
| IntiGo e-commerce module (seller side) Full Stack Software Engineer (CDI) | IntiGo April 2026 to present | Theme-based storefront builder with publish revisions, catalogue and coupons, a cash-on-delivery confirmation queue with risk scoring and an order-event journal, and Meta Pixel plus Conversions API with event deduplication, handing orders into the delivery network. | Next.js, FastAPI, PostgreSQL, Meta Pixel, Meta Conversions API, Risk scoring | Running as a staging pilot; not in production. Staging pilot |
| Merchant integrations, mobile apps and reliability Full Stack Software Engineer (CDI) | IntiGo April 2026 to present | Shopify app, WooCommerce plugin and PrestaShop module (1.7, 8, 9) that push orders and tracking into IntiGo; four iOS apps and one Android app on a shared React Native and FastAPI foundation with automated store releases; automated database backups across six targets with Slack and email alerts; maintenance of legacy Django and PostgreSQL systems; extraction of parcel chat into a multi-tenant SaaS (tenant layer in progress). | Shopify API, WooCommerce, PrestaShop, PHP, React Native, FastAPI, GitHub Actions, Django, PostgreSQL, Nginx | First production change in week 1; backups with alerts running within two weeks. Shipped, chat SaaS in progress |
| Lodgo (vacation-rental marketplace) Freelance Full Stack Engineer, front-end lead | DevWavews, freelance, PropTech June 2026 to present | Four full-stack modules owned end to end: FAQ, SEO, Stories and Admin dashboard, with multilingual public pages, plus CI optimisation (sharded Storybook tests) and Azure deployment through Docker and GitHub Actions. | Next.js, NestJS, MongoDB, Elasticsearch, Storybook, Chromatic, Vitest, Playwright, Azure | Four modules delivered; shorter pull-request feedback from the CI changes. Ongoing |
| FitIn / CoachFit (AI fitness coaching app) Freelance React Native developer and AI integration | Freelance via Upwork, mobile B2C May 2025 to July 2026 | Complete MVP in React Native (Expo) with a RAG pipeline (OpenAI API, Supabase and pgvector) that grounds coach answers in the app content; Supabase Edge Functions for authentication, subscriptions and real-time chat; Stripe, in-app purchases and AdMob; WebRTC live coaching and text-to-speech workouts. | React Native, Expo, OpenAI API, RAG, Supabase, pgvector, Stripe, WebRTC | MVP delivered as the solo engineer reporting to three co-founders. Delivered |
| 24Resa (hotel booking platform) Freelance Full Stack Developer, IAM and API integration | Kreatek, freelance, TravelTech January 2024 to May 2025 | Granular role-based access control at module and button level across three modules of a multi-tenant platform, an Ant Design to Tailwind CSS migration, Travelgate and Cyberesa PMS integrations, a B2C booking engine in French and English, a B2B affiliate portal and an XML-OUT API. | Next.js, TypeScript, Tailwind CSS, RBAC, MySQL, Redis, REST APIs | B2C engine, B2B portal and OTA inventory API delivered. Delivered |
| Mindquest (HRTech applicant-tracking platform) Full Stack Engineer | Tech-Expert, full-time October 2023 to February 2025 | Security and quality overhaul with SonarQube, a Next.js server-side rendering migration with code splitting, five or more microfrontend modules, and mentoring of seven junior developers. | Next.js, Node.js, GraphQL, Kafka, Jest, Cypress, SonarQube, Azure AKS | 180+ security vulnerabilities resolved, test coverage up 45 percent, Security Rating A, page load cut from 2.9 s to 1.3 s. Delivered |
| TikTrak, Agri Location and Qramer Full Stack Developer (MERN and React Native) | Digicross, full-time January 2021 to October 2023 | Web and mobile products (TikTrak, the Agri Location agricultural equipment sale and rental app, and the Qramer educational-materials marketplace), plus a shared GitLab CI and Expo pipeline that automated testing and iOS and Android releases. | React, React Native, NestJS, MongoDB, PostgreSQL, GitLab CI, Expo | The Qramer platform reached 3,000+ students in six months (a platform result, not a personal metric). Delivered |
What applied AI projects has Lamjed Gaidi built?
Argus, a tool-calling LLM agent at IntiGo (Claude, Gemma and Qwen through Ollama, MCP, a read-only data replica, human approval), whose email-triage V1 is in use; and FitIn, a mobile coaching app with a RAG pipeline (OpenAI API, Supabase, pgvector). Further Argus modules are planned, not shipped.
What technologies does Lamjed Gaidi use most?
TypeScript, JavaScript, Python, PHP and SQL; React, Next.js and Tailwind CSS; Node.js, NestJS, Express and FastAPI; React Native and Expo; PostgreSQL, MongoDB, Redis and Supabase; Jest, Cypress, Playwright, SonarQube, GitHub Actions and GitLab CI; and for applied AI, the Claude and OpenAI APIs, tool calling, MCP, RAG and Ollama.
In progress · IntiGo
Work in flight, with its real status (pilot, building, shipped).
- 01
Argus
The company's brain — an always-on AI operator system, grounded in production data, supervised by humans.
- 02
Intigo Chat SaaS
The parcel-messaging backbone we run internally, being spun out at intigo.chat — one chat layer for every actor in the delivery chain, sold to other operators.
- 03
Intigo Ecommerce
A storefront builder, a catalog and a confirmation desk in one back-office, connected to IntiGo's delivery network — so a Tunisian seller goes from "I have products" to "parcel on the road" without leaving IntiGo.
Logistics · current CDI
IntiGo — my current permanent role, since April 2026.
- 01
IntiGo – Logistics Engineering Platform
End-to-end logistics engineering at a last-mile e-commerce delivery platform in Tunisia (10M+ parcels delivered). Delivered production features from Week 1 and owned critical infrastructure — automated DB backups with Slack & email alerts, Shopify & WordPress integrations, and the buyer-facing web/mobile apps.
Next.jsFastAPIReact NativePHPWordPress / WooCommerceShopify APIDjangoPostgreSQL+9
Freelance · concurrent
Client work I ship alongside the CDI — same quality bar, multiple live surfaces.
- 01
Lodgo (DevWavews)
PropTech vacation-rental marketplace built by the DevWavews agency, connected to Guesty and Hostaway property-management systems. Full-stack ownership on 4 modules — FAQ, SEO, Stories (blog), Admin Dashboard — running in parallel with my IntiGo CDI.
PropTechVacation RentalProperty ManagementPMS IntegrationsGuestyHostawayNext.js 16React 19+23 - 02
24Resa
PropTech / TravelTech hotel booking platform integrating three core modules with an advanced IAM (Identity and Access Management) system, connecting to Travelgate marketplace and the Cyberesa property-management system (PMS) for seamless hotel distribution and inventory sync.
PropTechTravelTechHotel BookingProperty ManagementPMS IntegrationsCyberesa PMSTravelgate APIReact.js+18 - 03
FitIn
AI-powered mobile fitness coaching app featuring RAG (Retrieval-Augmented Generation) architecture, Serverless Edge Functions, and Freemium monetization model. Successfully published and managed on both Apple App Store and Google Play Store.
React Native 0.82Expo SDK 54TypeScriptRAG System ArchitectureVector Database (PostgreSQL/Supabase)Semantic SearchServerless Functions (Edge/Supabase Functions)Supabase Edge Functions+21
Consultancy · architecture
Roadmap definition and system architecture where the tech decisions matter most.
- 01
Dekacom Platforms
Strategic roadmap definition and complete technical ecosystem architecture for two high-stakes enterprise platforms: an AI-powered Big Data engine and a white-label mobile SaaS factory.
NestJSReact NativeNext.js 14TypeScriptBullMQRedisMongoDBPostgreSQL+8
HRTech · Tech-Expert
Permanent role — quality, security, and mentoring years.
- 01
MindQuest
Connecting the best talents to the best IT & Finance offers in France and Europe - A comprehensive platform that connects talented professionals with job opportunities, offering personalized support.
React 16/18Next.js 14Node.js 12/18Express.jsGraphQLSonarQubeAzureAKS+9
Digicross era · foundations
Where I learned the craft — MERN, React Native, GitLab CI, and the discipline of shipping.
- 01
TikTrak
Exclusive software solution for professionals in the sale and rental of equipment in France. Simplifying evaluation, estimation, resale, and rental management for agricultural and public works equipment.
React.js 16ReduxReact NativeExpoNode.js 16Express.jsMongoDBHeroku+8 - 02
Agri Location
Mobile application dedicated to agriculture professionals, offering an exclusive software solution for managing the sale and rental of agricultural equipment.
React NativeExpoReduxNode.js 16Express.jsMongoDBFigmaGitLab CI/CD+1 - 03
Qramer
Marketplace dedicated to educational materials, offering an exclusive platform for the sale and purchase of specialized educational resources.
Next.js 13ReactReduxNode.js 16Express.jsMongoDBFigmaGitLab CI/CD+2