2 987 Emplois pour Stack Developer - France

Are you a full-stack developer with a passion for building cutting-edge solutions? We're hiring on behalf of a fast-growing, profitable startup that's making waves in the crypto space. This company, backed by industry leaders like GSR and Ledger, is creating innovative asset management tools for institutional clients and consumers. With over four years of deep expertise in crypto exchange connectivity, they're already a major player in the market.

This company has found its Product-Market Fit (PMF) and is experiencing exponential growth, having already secured over 130 clients for one of its key solutions and 4 for another. As a key member of a small, agile team, your ideas and initiatives will be vital as they aim to hit €1M in monthly revenue within the next six months.

You'll join the core team to directly contribute to the development of two primary products:

• Product 1: Improve the UI and expand support to new platforms.
• Product 2: Integrate new exchanges and optimize performance, scalability, and robustness.

Your Responsibilities Will Include:

• Enhancing the UI/UX of their web platform and sharing best practices.
• Developing new applications with similar functionalities.
• Integrating new exchange APIs and implementing robust testing frameworks.
• Contributing to a potential cloud migration and improving their transaction reporting system

• Frontend: React, Zustand, MUI, Jest, Storybook, ethers.js
• Backend: Nest.js, Postgres, Prisma, Mongo, Redis
• Infrastructure: GCP, AWS, neon.tech, railway
• Tools: Vite, Webpack

We're searching for an "A player" with a proactive attitude and a drive to move projects forward.

• Experience: At least 2+ years of experience with React, building production-level applications, libraries, and APIs.
• Knowledge: A deep understanding of modern client-side React architecture (v18/19), state management, and UI component libraries. You should also be proficient with the JS/TS ecosystem (bundlers, linters, testing tools, etc.).
• Skills: Experience with cloud providers (AWS, GCP) and Docker. Strong knowledge of Nest.js is essential.
• Autonomy: The ability to take initiative and solve problems on your own.
• Bonus Points: Experience with Web3, DeFi, or FinTech applications, as well as specific AWS components like ECS Fargate and deployment tools like Terraform.
• English speaking is a must have, French speaking is a bonus

• Full-time position

• 50K - 90K EUR salary per year (based on experience)

This is a unique opportunity to join a company at a pivotal moment in its growth. You'll work with top talent in an entrepreneurial environment where your ideas have a direct impact. With an attractive compensation package and flexible remote work options (within the European time zone), this is your chance to be part of a mission-driven team that is poised for explosive growth.

To learn more and apply, please submit your information through this confidential posting. We will not be sharing your details with the company until you have been fully vetted and have given us your explicit consent.

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility: At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing

MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting

2 days ago Be among the first 25 applicants

À propos

Adelean develops and deploys search engines in the broad sense of the term:

• e-commerce engines
• Enterprise Search engines
• Conversational engines (like Perplexity or ChatGPT)
• Dashboards for observability, monitoring and security
  
  

• A2 : a data integration platform and a complete, innovative e-commerce search engine, compatible with Elasticsearch, OpenSearch and Apache Solr.
• all.site : an enterprise and conversational search engine based on GenAI RAG (Retrieval-Augmented Generation) architecture, as well as a collaborative platform for sharing search engines - a true “GitHub for search engines”.
  
  

• Business administration consoles for different search engines
• Development and evolution of the all.site and adelean.com websites
• Integrations with other technologies (OpenSearch Dashboards, Elastic Kibana, React, Magento, PrestaShop, etc.)
  
  

• A stimulating environment where innovation and new ideas are encouraged
• A small, close-knit, creative team made up of recognized experts
• High autonomy and real flexibility in work organization
• Access to training and technical conferences
• The opportunity to contribute to the growth of a young and dynamic company active in the innovative search engine and AI sector
  
  

• React.js, TypeScript
• Redux Toolkit, RTK Query
• React Testing Library, Vitest
• PrimeReact
• NestJS, Node.js
• Angular (for legacy applications)
• Hugo (similar to Astro, Jekyll)
  
  

• Full Stack development (Front & Back)
• Knowledge of UI/UX
• Ability to produce user documentation (APIs or interfaces)
• Experience with unit testing
• Mastery of web and mobile constraints and challenges
• Experience developing Single Page Applications
• Strong communication skills with business teams and ability to challenge requirements
• Creativity and the ability to propose ideas
• Mastery of version control tools
• Knowledge of the French language is strongly advised
  
  

• Experience with search engines and intelligent conversational assistants (AI agents)
• Use of Kibana and OpenSearch Dashboards
• Knowledge of Lucene / Solr / Elasticsearch
• Experience with the Elastic Stack (ELK)
• Strong foundations in Java
• Mastery of mockup tools (Figma, Excalidraw, Draw.io…)
• Experience with agile methods and a testing culture
• Experience with industrialization and DevOps environments
• Familiarity with cloud solutions
  
  

• Computer of your choice
• Up to 100% coverage of the Navigo IDF pass
• Participation in conferences and training
• Pleasant offices at Station F
• Remote work and flexible projects
  
  

• A questionnaire to get to know you better
• A take-home technical test (Algorithms and/or JavaScript)
• An in-depth interview + feedback and discussion about the technical test
• Possibly an additional interview before making you an offer
• Integration into the Adelean team and welcome package!
  
  

• Type de contrat : CDI
• Date de début : 01 septembre 2025
• Lieu : Paris
• Expérience : > 1 an
• Télétravail partiel possible
• Salaire : entre 28000€ et 52000€ / an

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Engineering and Information Technology
• Industries Technology, Information and Internet

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Experience : 4+ years in software development

Job Type: Full-time

Location : Paris / Remote

• Develop and maintain scalable web applications using React, Node.js, Python, or similar technologies, ensuring high performance, efficiency, and seamless user experience across platforms.
• Architect and implement robust backend systems that support scalable and secure data processing, integrating with databases, APIs, and cloud services to optimize application functionality.
• Work with cross-functional teams , including product managers, UX/UI designers, and data engineers, to design and deliver innovative solutions that address business and customer needs.
• Ensure application security, performance, and maintainability by adopting best practices in code quality, DevOps, automated testing, and infrastructure as code (IaC).
• Optimize and enhance system performance , conducting profiling, load testing, and debugging to improve responsiveness and reliability under varying workloads.
• Stay ahead of emerging technologies and industry trends , evaluating and implementing new tools, frameworks, and architectures to continuously improve the product stack.
• Contribute to technical documentation and knowledge sharing , fostering a collaborative engineering culture through peer code reviews and internal tech talks.

• Strong knowledge of frontend (React, Angular, Vue.js) and backend (Node.js, Django, Flask, Spring Boot) development.
• Experience with cloud technologies (AWS, Azure, GCP).
• Familiarity with databases (SQL, NoSQL) and API development.

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We are seeking a Full Stack Engineer. Candidate should be/have:

1. Freelance (20hrs per week).
2. Remote work experience.
3. Based in EU with a quiet home office with fast internet.
4. Deep understanding of Domain-Driven Design and Event Sourcing.
5. Expertise in front-end technologies, we use React, JavaScript, CSS.
6. Expertise in back-end technologies, we use NodeJS and Elixir.
7. Attention to detail and commitment to quality.
8. Security-conscious.

Ton poste - Full Stack Developer

En collaboration directe avec le cofondateur de la société, tu travailleras avec l’équipe produit (Product Manager, développeuses et développeurs) pour construire les applications olome.

Les missions sont les suivantes :

• Participer au développement du produit et de ses nouveaux modules

• Développer les nouvelles fonctionnalités

• Créer une expérience utilisateur unique

• Tester les développements

• Intégrer de l’intelligence artificielle

• Maîtriser la sécurité

• Travailler avec les clients olome pour améliorer l’application

Ces fonctions pourront évoluer en fonction de l'actualité du service et de ta volonté à enrichir cette période d'apprentissage.

Poste à temps partiel ou temps plein.

Stack olome

• Front : Flutter mobile & web + React

• Back : NodeJs, (TypeScript), API GraphQL & Rest

• DB : MongoDB, PostgreSQL Managé

• Infra : Infra as Code (Terraform), Kubernetes, S3, Prometheus, nginx

• Tools : Gitlab CI/CD

Tu es notre candidat·e idéal.e si :

• Tu as une expérience prouvée de Full Stack developer d’au moins 3 ans

• aimes les projet ambitieux, construire de nouvelles solutions et apporter ta pierre à l’édifice

• Tu aimes résoudre des problèmes concrets avec de la technologie

• Tu sais prendre des initiatives et tu as esprit entrepreneurial

• Tu aimes apprendre et partager tes connaissances

• Tu as un Bac+3/4/5 ou équivalent

• Tu as envie de partager tes compétences et tu maîtrises au moins partiellement notre stack

• Tu es à l’aise en anglais en particulier à l’écrit

I am partnering with an innovative Deeptech Biotech company based in Paris, France who are harnessing the power of Artificial Intelligence and multimodal data to transform the Drug Discovery process in Immunology.

Position : Full-Stack Developer

Location : Paris, France (3 days a week onsite / 2 days remote working)

Salary : Depending on experience

Job Overview

You’ll be instrumental in building and maintaining user-friendly web platforms that allow researchers and industry collaborators to access advanced AI models. Your work will translate complex scientific insights into intuitive interfaces that support biotech and therapeutic applications.

Key Responsibilities

• Develop and maintain interactive web applications using Next.js to visualize AI-derived scientific outputs and facilitate model-driven workflows.
• Design and implement dashboards and tools that enable users to explore biological data, interpret predictive outputs, and interact with machine learning models—such as fine-tuning interfaces and response visualizations.
• Create scientifically accurate, interactive data visualizations (e.g., expression heatmaps, response curves, patient stratification logic, network diagrams).
• Oversee application deployment using platforms like Vercel (or equivalents), set up CI / CD pipelines, and ensure reliable uptime for external and internal users.
• Collaborate closely with interdisciplinary teams—product managers, UX designers, data scientists, ML engineers—to embed research ideas into functional tools that advance precision medicine workflows.

Ideal Candidate Profile

Following your application, Jay Robins, a specialist AI recruiter will discuss the opportunity with you in detail.

He will be more than happy to answer any questions relating to the industry and the potential for your career growth.

The conversation can also progress further to discussing other opportunities, which are also available right now or will be imminently becoming available.

This position has been highly popular, and it is likely that it will close prematurely. We recommend applying as soon as possible to avoid disappointment.

We are looking for a talented and motivated full stack developer to join our team and contribute to the development of our innovative satellite-based maritime connectivity solution.
You will be responsible for the design, development and maintenance of our solution in collaboration with a multidisciplinary team.

• Design and develop web applications for our connectivity solution.
• Collaborate with design, product and engineering teams to define and implement functionalities.
• Maintain and optimize the performance of existing applications.
• Participate in code reviews and guarantee the quality of the code produced.
• Integrate third-party APIs and satellite connectivity services.
• Keep up to date with new technologies and best development practices.

• Development experience (front-end and back-end).
• Knowledge of front-end and back-end frameworks (e.g. Flask).
• Experience with relational and non-relational databases (e.g., MySQL).
• Continuous integration and deployment (CI/CD) skills.
• Knowledge of satellite connectivity technologies and network communication protocols.
• Ability to work in a team and communicate effectively.
• Knowledge of Linux appreciated.

• Master’s degree in computer science or software engineering.
• Experience in the field of connectivity solutions or telecommunications a plus.

Dynamic and innovative work environment.
Competitive salary and attractive benefits.

Join to apply for the Full Stack Developer role at Samouraï Coop

Job Description

Passionate about React Native, Node.js, Vue.js, or other frameworks, you're a front-end ninja.

Interested in cryptography, privacy, peer-to-peer, and distributed ledgers, you're a curious human.

Comfortable working alone or with a team, remotely without an in-office setup.

You are skilled, creative, and prefer a flexible work environment over rigid Agile processes.

You dislike excessive management and prefer a fast, autonomous workflow with trusted teammates.

You will leverage your coding and organizational skills to support a multi-front vision and strategy.

We are fully remote, collaborating via Slack, Discord, Trello, Github, etc.

• Develop for secret projects focused on privacy and Web3 tools.
• Participate in various development phases from R&D to deployment.
• Review team members' work and approve code (LGTM).
• Lead topics or support others, especially in P2P auto-management.

• Connect daily with the team to foster collaboration and innovation.
• Write documentation for the community.
• Audit and review implementations.
• Build projects from scratch to release.
• Propose ideas and work autonomously.

• Passion, technical skills, and human sensibility are essential.
• Must be passionate about Web3.

Salary depends on skills and projects. Opportunities include full-time, part-time, project-based, or SamBounties.

Apply now!

Samouraï Coop, founded in 2017, is a remote-first production and 360° agency passionate about creation, culture, and technology. It fosters innovation and supports independent creation within a dynamic, small team.

The company operates in three areas: services, productions (films, web series, NFTs), and consulting (Web3, Blockchain).

Since 2020, the team has been fully remote, comprising directors, editors, technicians, artists, developers, and designers, all working in an agile, innovative environment.

Visit samourai.world