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I'm a freelancer who specializes in fullstack JavaScript development with over 7 years of experience building scalable and high-performance applications. I focus on Node.js, React, Vue.js, and TypeScript, with expertise in backend APIs (REST/GraphQL), frontend frameworks, and databases such as PostgreSQL, MongoDB, and Redis. I’ve also worked with AWS, Docker, and CI/CD pipelines to deliver secure and reliable deployments. What differentiates me is my ability to work end-to-end — from designing backend architectures to building responsive frontends — and my passion for exploring Web3 technologies like Solana and Anchor, where I’ve built projects such as an escrow system, NFT staking, and marketplaces. Employment and project experience Senior Fullstack Developer Publicis (via Hexagon) January 2024 – Present Developed backend and frontend features using Node.js, React, and TypeScript. Implemented SSO with Auth0 and integrated third-party APIs. Collaborated with a team of 9 including backend/frontend devs, designers, and PO. Fullstack Developer DomusVi 2022 – 2023 Built a fullstack application to synchronize daily data from nursing homes across multiple countries. Developed backend with Node.js, frontend with Vue.js, and integrated multilingual support. Backend Developer Eldermark 2021 – 2022 Led backend migration from Wakanda to Node.js. Designed architecture in Node.js/TypeScript and integrated Redis caching. Fullstack Developer AXA Health Keeper 2019 – 2021 Enhanced digital health platform with fitness tracking and API integrations (Fitbit, Garmin, Apple Health). Built unified data abstraction layer to manage API rate limits and normalization.…I'm a freelancer who specializes in fullstack JavaScript development with over 7 years of experience building scalable and high-performance applications. I focus on Node.js, React, Vue.js, and TypeScript, with expertise in backend APIs (REST/GraphQL), frontend frameworks, and databases such as PostgreSQL, MongoDB, and Redis. I’ve also worked with AWS, Docker, and CI/CD pipelines to deliver secure and reliable deployments. What differentiates me is my ability to work end-to-end — from designing backend architectures to building responsive frontends — and my passion for exploring Web3 technologies like Solana and Anchor, where I’ve built projects such as an escrow system, NFT staking, and marketplaces. Employment and project experience Senior Fullstack Developer Publicis (via Hexagon) January 2024 – Present Developed backend and frontend features using Node.js, React, and TypeScript. Implemented SSO with Auth0 and integrated third-party APIs. Collaborated with a team of 9 including backend/frontend devs, designers, and PO. Fullstack Developer DomusVi 2022 – 2023 Built a fullstack application to synchronize daily data from nursing homes across multiple countries. Developed backend with Node.js, frontend with Vue.js, and integrated multilingual support. Backend Developer Eldermark 2021 – 2022 Led backend migration from Wakanda to Node.js. Designed architecture in Node.js/TypeScript and integrated Redis caching. Fullstack Developer AXA Health Keeper 2019 – 2021 Enhanced digital health platform with fitness tracking and API integrations (Fitbit, Garmin, Apple Health). Built unified data abstraction layer to manage API rate limits and normalization.

Hamza Kholti

Back-End Developer, Full Stack Developer, Front-End Developer, +2

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I'm a freelancer who specializes in fullstack JavaScript development with over 7 years of experience building scalable and high-performance applications. I focus on Node.js, React, Vue.js, and TypeScript, with expertise in backend APIs (REST/GraphQL), frontend frameworks, and databases such as PostgreSQL, MongoDB, and Redis. I’ve also worked with AWS, Docker, and CI/CD pipelines to deliver secure and reliable deployments. What differentiates me is my ability to work end-to-end — from designing backend architectures to building responsive frontends — and my passion for exploring Web3 technologies like Solana and Anchor, where I’ve built projects such as an escrow system, NFT staking, and marketplaces. Employment and project experience Senior Fullstack Developer Publicis (via Hexagon) January 2024 – Present Developed backend and frontend features using Node.js, React, and TypeScript. Implemented SSO with Auth0 and integrated third-party APIs. Collaborated with a team of 9 including backend/frontend devs, designers, and PO. Fullstack Developer DomusVi 2022 – 2023 Built a fullstack application to synchronize daily data from nursing homes across multiple countries. Developed backend with Node.js, frontend with Vue.js, and integrated multilingual support. Backend Developer Eldermark 2021 – 2022 Led backend migration from Wakanda to Node.js. Designed architecture in Node.js/TypeScript and integrated Redis caching. Fullstack Developer AXA Health Keeper 2019 – 2021 Enhanced digital health platform with fitness tracking and API integrations (Fitbit, Garmin, Apple Health). Built unified data abstraction layer to manage API rate limits and normalization.…I'm a freelancer who specializes in fullstack JavaScript development with over 7 years of experience building scalable and high-performance applications. I focus on Node.js, React, Vue.js, and TypeScript, with expertise in backend APIs (REST/GraphQL), frontend frameworks, and databases such as PostgreSQL, MongoDB, and Redis. I’ve also worked with AWS, Docker, and CI/CD pipelines to deliver secure and reliable deployments. What differentiates me is my ability to work end-to-end — from designing backend architectures to building responsive frontends — and my passion for exploring Web3 technologies like Solana and Anchor, where I’ve built projects such as an escrow system, NFT staking, and marketplaces. Employment and project experience Senior Fullstack Developer Publicis (via Hexagon) January 2024 – Present Developed backend and frontend features using Node.js, React, and TypeScript. Implemented SSO with Auth0 and integrated third-party APIs. Collaborated with a team of 9 including backend/frontend devs, designers, and PO. Fullstack Developer DomusVi 2022 – 2023 Built a fullstack application to synchronize daily data from nursing homes across multiple countries. Developed backend with Node.js, frontend with Vue.js, and integrated multilingual support. Backend Developer Eldermark 2021 – 2022 Led backend migration from Wakanda to Node.js. Designed architecture in Node.js/TypeScript and integrated Redis caching. Fullstack Developer AXA Health Keeper 2019 – 2021 Enhanced digital health platform with fitness tracking and API integrations (Fitbit, Garmin, Apple Health). Built unified data abstraction layer to manage API rate limits and normalization.

Available to hire

I’m a freelancer who specializes in fullstack JavaScript development with over 7 years of experience building scalable and high-performance applications.
I focus on Node.js, React, Vue.js, and TypeScript, with expertise in backend APIs (REST/GraphQL), frontend frameworks, and databases such as PostgreSQL, MongoDB, and Redis. I’ve also worked with AWS, Docker, and CI/CD pipelines to deliver secure and reliable deployments.
What differentiates me is my ability to work end-to-end — from designing backend architectures to building responsive frontends — and my passion for exploring Web3 technologies like Solana and Anchor, where I’ve built projects such as an escrow system, NFT staking, and marketplaces.

Employment and project experience

Senior Fullstack Developer Publicis (via Hexagon)
January 2024 – Present

Developed backend and frontend features using Node.js, React, and TypeScript.

Implemented SSO with Auth0 and integrated third-party APIs.

Collaborated with a team of 9 including backend/frontend devs, designers, and PO.

Fullstack Developer DomusVi
2022 – 2023

Built a fullstack application to synchronize daily data from nursing homes across multiple countries.

Developed backend with Node.js, frontend with Vue.js, and integrated multilingual support.

Backend Developer Eldermark
2021 – 2022

Led backend migration from Wakanda to Node.js.

Designed architecture in Node.js/TypeScript and integrated Redis caching.

Fullstack Developer AXA Health Keeper
2019 – 2021

Enhanced digital health platform with fitness tracking and API integrations (Fitbit, Garmin, Apple Health).

Built unified data abstraction layer to manage API rate limits and normalization.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

French

Fluent

Arabic

Fluent

Work Experience

Full Stack Developer at Publicis Groupe

April 1, 2024 - Present

Developed a full-stack application for DomusVi, a European leader in senior care, to synchronize daily data from nursing homes across multiple countries. The system dynamically generates and updates individual web pages for each care center. Built the back end in Node.js to handle data ingestion, normalization, and automated page updates. Created a responsive front end using Vue.js with multilingual content. Focused on performance, SEO, and accessibility. Collaborated with international teams to ensure content accuracy and scalability.

Tech Lead (React/Node) at AXA Health Keeper

March 31, 2024 - September 18, 2025

Led backend and frontend development for AXA Health Keeper, a digital health and wellness platform, including implementing SSO with Auth0 and Universal Login, integrating third-party APIs, performing code reviews, distributing tasks, debugging issues, and refining the project scope with the Product Owner. Contributed to feature development and cross-team collaboration to ensure reliability and scale.

Technical Lead (ReactJs) at Beemix

November 30, 2021 - September 18, 2025

Beemix is a cloud video platform. I led frontend/backend work, delegated tasks to team members, analyzed feature needs, estimated issues, reviewed team contributions, and planned timelines. Focused on delivering robust features and maintaining momentum.

Backend Developer at 4D, Morocco

April 20, 2021 - September 18, 2025

Implemented back-end for Eldermark (remote project) to support public service forms for communities, including API redesign, data migrations, and server-side logic. Collaborated closely with front-end and QA teams to deliver a compliant solution that supports future expansion and data integration.

Full Stack Developer (Mobile App & Backend) at Cochilo

February 25, 2020 - September 18, 2025

Developed the mobile app and backend for a cab/consumer platform; implemented the checkout module on the back end and ensured a smooth end-to-end flow for customer journeys.

Full Stack Developer at Mutuelle Générale (France) – Fairlynk

March 1, 2021 - September 18, 2025

Designed and implemented modules for digital contract management, including electronic signatures (Adobe Sign, DocuSign), internal signature workflow, integration with SharePoint, exporting contracts to PDF, and indexing with Elasticsearch. Built a lifecycle management module to track contracts and automate processes.

Frontend Developer (Mobile App & Back Office) at Top Kutz

September 27, 2019 - September 18, 2025

Built a mobile app and back-office interfaces for a barber platform that connects customers with barber shops in a given area. Implemented in-app features, notifications, and CI/CD integration for smooth deployment across environments.

Full Stack Developer (API Backend & Back Office) at A Student Card

February 20, 2019 - September 18, 2025

Developed an API backend and back-office tooling for a multi-function card used by teachers, students, and parents to track and improve student performance. Integrated with existing systems (TxieS and Transfiner) to expand functionality and reporting.

Backend Developer at Wakanda TNC

May 15, 2018 - September 18, 2025

Implemented a backend application for public services to allow communities to create and customize forms and connect with data providers (France Connect, DGFIP, CAF).