Paris, Ile-de-France, France · Remote OK
Sweep is looking for a Senior Fullstack Engineer (freelance) to work on our Sustainability Data Intelligence Platform. Climate change is the defining issue of our time. Sweep builds a sustainability data intelligence pla…
Skills: React, TypeScript, GraphQL, Relational Databases, Distributed Systems
Montpellier, Occitania, France · Hybrid
A propos de Kaliop Le digital pas comme les autres Depuis 2002, Kaliop accompagne la transformation numérique des entreprises. Nous concevons et déployons des produits numériques sur mesure : plateformes clients, sites i…
Skills: Product Design, UX Design, UI Design, User Research, Design Thinking
Montpellier, Occitania, France · On-site
$600/hr–$1k
<p>En 2022, Phénix Solar est née d'une ambition claire : transformer les espaces inexploités en sources d'énergie durable.</p> <p>Comme le Phénix qui renaît de ses cendres, nous donnons une seconde vie aux toitures, park…
Skills: Artificial Intelligence, Generative AI, AI Tool Development, Data Analysis, Business Process Optimization
Montpellier, Occitania, France · Hybrid
$55k–$65k/yr
Description de l'entreprise Et si vous choisissiez plus qu’un simple job ? ✨ HELPLINE est spécialisée dans l’infogérance du support utilisateur et la mise en œuvre d’une expérience collaborateur augmentée par l’IA, où l’…
Skills: SQL Server Administration, Performance Tuning, Ansible, Windows Server, Database Migration
Montpellier, Occitania, France · On-site
$50k–$60k/yr
Description de l'entreprise Et si vous choisissiez plus qu’un simple job ? ✨ 🚀 HELPLINE est spécialisée dans l’infogérance du support utilisateur et la mise en œuvre d’une expérience collaborateur augmentée par l’IA, où…
Skills: Angular, React, Front-end Architecture, API Integration, Continuous Delivery
Montpellier, Occitania, France · On-site
$50k–$60k/yr
Description de l'entreprise Et si vous choisissiez plus qu’un simple job ? ✨ 🚀 HELPLINE est spécialisée dans l’infogérance du support utilisateur et la mise en œuvre d’une expérience collaborateur augmentée par l’IA, où…
Skills: Angular, React, Front-end Architecture, API Integration, Continuous Delivery
Montpellier, Occitania, France · Hybrid
Company Description Ubisoft is a global leader in gaming with teams across the world creating original and memorable gaming experiences, from Assassin’s Creed, Rainbow Six to Just Dance and more. We believe diverse persp…
Skills: 3D Animation, MotionBuilder, Combat Gameplay Animation, Keyframe Animation, Motion Capture
Montpellier, Occitania, France · Remote OK
Avec plus de 850 collaborateurs, Studi est LA grande école en ligne française, acteur incontournable de l’edtech et leader sur son marché de la formation en ligne et l’alternance. Filiale Edtech de Galileo Global Educati…
Skills: Large Language Models, Prompt Engineering, Fine-tuning, LangChain, LlamaIndex
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est une société de conseil spécialisée en transformation digitale des organisations, fondée en 2007 par Sébastien Videment. Installée initialement à Paris, elle s’est déployée en régio…
Skills: Java 17/21, Spring Boot, Hibernate, CI/CD, Technical Leadership
Montpellier, Occitania, France · On-site
Description de l'entreprise Septeo est un acteur de référence du software en Europe, présent à l’international et reconnu parmi le top 5 des éditeurs de logiciels sectoriels en France. En forte croissance et en transform…
Skills: Team Management, Customer Relationship Management, KPI Analysis, Operational Performance Tracking, Change Management
Montpellier, Occitania, France · On-site
Description de l'entreprise Septeo, éditeur de logiciels de référence en Europe, est un groupe qui grandit vite. Qui se transforme. En 10 ans, nous sommes devenus un des leaders européens de la tech, une référence dans l…
Skills: B2B Sales, Business Development, Client Relationship Management, Needs Analysis, Product Demonstration
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est un cabinet de conseil, pilotage et développement IT fondé en 2007 présent à Paris, Sophia-Antipolis, Aix-en-Provence, Montpellier, Toulouse, Nantes... Et bientôt sur de nouveaux te…
Skills: Infrastructure Supervision, Incident Management, System Backup, Information System Security, IT Auditing
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est un cabinet de conseil, pilotage et développement IT fondé en 2007 présent à Paris, Sophia-Antipolis, Aix-en-Provence, Montpellier, Toulouse, Nantes... Et bientôt sur de nouveaux te…
Skills: C#, .Net, Git, Rest, Agile Methodologies
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est un cabinet de conseil, pilotage et développement IT fondé en 2007 présent à Paris, Sophia-Antipolis, Aix-en-Provence, Montpellier, Toulouse, Nantes... Et bientôt sur de nouveaux te…
Skills: QA Testing, Test Planning, Test Execution, Regression Testing, Test Automation
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est un cabinet de conseil, pilotage et développement IT fondé en 2007 présent à Paris, Sophia-Antipolis, Aix-en-Provence, Montpellier, Toulouse, Nantes... Et bientôt sur de nouveaux te…
Skills: Kubernetes, Azure, AWS, Google Cloud, Jenkins
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est un cabinet de conseil, pilotage et développement IT fondé en 2007 présent à Paris, Sophia-Antipolis, Aix-en-Provence, Montpellier, Toulouse, Nantes... Et bientôt sur de nouveaux te…
Skills: Java, Back-end Development, Software Architecture, Framework Migration, Technical Documentation
Montpellier, Occitania, France · On-site
Description de l'entreprise Septeo est un acteur de référence du software en Europe, présent à l’international et reconnu parmi le top 5 des éditeurs de logiciels sectoriels en France. En forte croissance et en transform…
Skills: Team Management, Customer Relationship Management, KPI Analysis, Operational Performance Tracking, Change Management
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est un cabinet de conseil, pilotage et développement IT fondé en 2007 présent à Paris, Sophia-Antipolis, Aix-en-Provence, Montpellier, Toulouse, Nantes... Et bientôt sur de nouveaux te…
Skills: Java, Back-end Development, Software Architecture, Framework Migration, Technical Documentation
Montpellier, Occitania, France · On-site
Description de l'entreprise Meritis est une société de conseil spécialisée en transformation digitale des organisations, fondée en 2007 par Sébastien Videment. Installée initialement à Paris, elle s’est déployée en régio…
Skills: Product Ownership, Agile Methodologies, Scrum, Kanban, Backlog Management
Montpellier, Occitania, France · On-site
Description de l'entreprise Septeo, éditeur de logiciels de référence en Europe, est un groupe qui grandit vite. Qui se transforme. En 10 ans, nous sommes devenus un des leaders européens de la tech, une référence dans l…
Skills: Social Media Strategy, Editorial Writing, Content Production, Community Management, Data Analysis
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
The engineer will own full-stack features end-to-end, from database schema and backend logic to the React/TypeScript UI. Responsibilities include designing robust data models, managing observability, and integrating AI tools to accelerate development.
Candidates need 5+ years of full-stack experience with strong backend foundations and fluency in React and TypeScript. Experience with Ruby on Rails in high-scale environments is a strong plus.
Climate change is the defining issue of our time. Sweep builds a sustainability data intelligence platform used by major enterprises to track greenhouse gas emissions, meet regulatory requirements, and drive real decarbonization. We're a B Corporation, and we mean it.
As a Senior Fullstack Engineer, you'll own features end-to-end, from data models and backend systems to the interfaces that make sustainability data actionable. You'll work at the heart of our core product, alongside a team that cares deeply about quality and impact.
Build and own core product features
- Design and implement full-stack features from the ground up: database schema, backend logic, GraphQL API, and React/TypeScript UI
- Take full ownership of significant parts of the system: reliability, performance, and long-term maintainability are yours to drive
- Participate in every stage of the development lifecycle, from design and implementation to rollout and smooth operation in production
- Contribute to and challenge our technical architecture as we scale
Bring genuine backend depth
- Design robust data models and schemas built to perform at scale
- Build and operate backend services, including background jobs, async pipelines, and integrations with third-party systems
- Own observability: instrument systems, define meaningful metrics, and respond to incidents with confidence
- Identify and address security risks proactively from API design to infrastructure exposure
- Automate deployments via our CI/CD systems and continuously improve development processes
Work with AI as a day-to-day accelerator
- Leverage AI tools actively in your workflow, from code generation and review to debugging and documentation, to move faster without compromising quality
- Contribute to how we integrate AI-assisted development practices across the engineering team
- Stay curious about emerging AI capabilities and bring new ideas on how we can use them to ship better, faster
Be a team force multiplier
- Lead technical design on significant features and share your experience openly
- Review pull requests with rigour and care, raising the bar for the whole team
- Participate actively in team rituals: stand-ups, planning, retros
- Contribute to our culture of quality: incremental, well-tested, observable changes
Pursue quality, always
- Champion clean code, solid test coverage, and strong engineering practices
- Improve processes and methodologies to reach the highest standards
- Bring excellence to your own work and help others do the same
Glad you asked. This is who we’re looking for:
5+ years of experience shipping product across the full stack, with strong backend foundations
Solid experience with Ruby on Rails in a high-scale production environment is a must
Fluent in React/TypeScript on the frontend; deep expertise in relational databases, distributed systems, observability, and security on the backend
Comfortable owning features end-to-end with autonomy and clear communication
You write clean, well-tested code and take genuine ownership of your work
Hybrid or Remote. Offices in Paris, London, Montpellier, and Denver
Start date: ASAP
Duration: Long-term collaboration, renewable
Rate: 520€
Applications will only be reviewed starting August 17th, as our team is currently on leave.
Your sustainability data management platform.
Sweep is the enterprise sustainability data management platform trusted by the world’s leading companies and financial institutions. Our SaaS solution helps organizations meet complex reporting requirements, map environmental impact across their value chain, and strategically implement sustainability strategies that deliver business value. Sweep delivers transparent, granular, and actionable data-backed insights. Our platform empowers decision-makers to identify regulatory and climate risks, engage their supply chain, design robust ESG transition plans, and build long-term business resilience. From medium-sized companies to global giants like L’Oréal, Orange, Crocs, Wickes. Our clients use Sweep to embed sustainability at the core of their operations and stay competitive in a rapidly evolving regulatory and economic landscape. Sweep has been recognized by Verdantix, IDC, and MEDEF as a leader in sustainability data management. Co-founded by Rachel Delacour, Yannick Chaze, and Raphael Guller, we are B Corp certified and active members of the World Bank’s Carbon Pricing Leadership Coalition, France Invest, and the International Emissions Trading Association. Learn more at www.sweep.net
Offices: Paris, FR · Montpellier, FR · London, GB
There are currently 124 open software positions in Montpellier, France listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include SEPTEO, Meritis Group, everience Italia, Scalian, Nexton IT, among others. Browse the listings above to see every active employer.
Yes — 53 of the 124 open software positions offer remote or hybrid work (5 remote, 48 hybrid).
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