Collaboration with Vanbox's CTO to finalize a first version of the mobile application that lets you control all the connected objects in your van.Data and commands can be received and sent either via an MQTT pubsub or via Bluetooth.

Lead ReactJS developer in a full-remote team of around 30 engineers, spread over 4 continents.Modernization of the stack to increase productivity:- implementation of a monorepo thanks to turborepo- switch to pnpm, vite, vitest, etc.Reinforcement of Typescript env and front-end libraries:- use of Yup then Zod to validate API and form inputs- abandon lodash in favor of libs such as ts-pattern, ts-belt, etc.- switch to Redux Toolkit Query (RTK Query) then react-query to simplify both our query system and state-managementCreation of the design-system:- in collaboration with a team of designers via Figma- using the atomic-design approach, which corresponds well to a component-oriented library like React- use of Radix-ui for basic components and Stitches for stylingImproved testing tools:- switch to vitest for its speed and better typescript environment support- choice of testing-library/react for integration tests- automated real use-cases e2e tests using playwright- synchronization with checklyhq for prod monitoring and alertingAuthentication management:- multi-domain auth support: login.conduktor.io and *.conduktor.appfor the saas version- creation of a wapper to support multiple front-end auth servers (oidc, keycloack, auth0, ...) for the on-premise versionIn-app subscriptions:- Using chargebee APIs- Action and conversion tracking via segmentImplementation of CI/CD:- use of Github actions- optimizations using caches and docker images- switch from Netlify to Vercel for API, certificate management and multi-domain supportTeam and project management:- choice of an efficient workflow with the PO, designers and the devs team- use of Linear to manage stories and tasks- daily and fun retrospectives

Typescript, NodeJS, Java and devops trainer:- Helping to design course material and projects- Participation in teaching methods- Skills validation

Healthcare end user tablet/mobile app (react native), and another backoffice web application (react) built alone as freelancer.Firebase was chosen as the solution to get to market quickly, and the platform enabled us to manage hosting, DB, authentication, etc. efficiently. I enjoyed my time working there, the product is really promising and the collaboration with the technical and product teams were stressless but so effective!

Development of a complete multi-company solution comprising three modules:1) API (Typescript, Nest.js, MongoDB,)Backend for administration of different companies, with rights/roles management2) CRM (Typescript, React, Material UI)Web application for company management: users, pricing, cash register forms, equipment, etc.3) Online sales (Responsive, Next.js, Paypal, SystemPay)Customisable website, managing availability for each activity, with online payment

Optimiz.me, SaaS software publisher for SEO, lead-tech, architect and full-stack developerCreation from scratch of Mazen, implementation of Typescript microservices on NodeJS, via Kubernetes- Front-end development in Typescript and React/Redux/SaaS stack, live update via Server-Sent-Event- Kubernetes administrator, GCP computes and services, MongoDB cluster, MariaDB- Fully automated CI/CD, with execution of unit tests, integrations and E2E via Cypress- Google Pubsub-based architecture for scalability, backpressure and fault tolerance- Monitoring and alerting via StackDriver; Business incident management via Sentry- Integration with numerous APIs: Keycloack, Recurly, Google Adwords, DataForSeo, SemRush, ...Management and development of a proxy with over 100 nodes to query Google Search- Load-balancing and Rate-Limit with HAProxy, deployment via Ansible, application on nodes in NodeJSOther- Clean-code, Code-review, Domain Driven Design, Agile practices (sprints, continuous improvement, etc.)

1 year on the free Open-Paas tool, desire to work on a web stack:- Development of a rich interface with Angular; UX research- Full automation of end-to-end testing via Docker and docker-compose5 years on the open-source tool OBM, responsible for the synchronization module (Java):- Synchronization server: improved stability and scalability- Automation: continuous integration and deployment, simplification with Docker, ...- Endurance testing: Creation (Scala/Gatling), automation, analysis and correctionsOther- Administration of production Linux servers: apache, cassandra, postgres, obm...- Technology watch on Docker, REST APIs and API Gateways