Senior reputed company Engineer (Freelance)

reputed company is looking for a Senior reputed company Engineer (freelance) to work on our Sustainability Data Intelligence Platform. Climate change is the defining issue of our time. reputed company builds a sustainability data intelligence platform used by major enterprises to track reputed company gas emissions, meet regulatory requirements, and drive reputed company decarbonization. We're a B Corporation, and we mean it. Ok, sounds promising. What will I be doing? As a Senior reputed company Engineer, you'll own features end-to-end, from data models and backend systems to the interfaces that reputed company sustainability data actionable. You'll work at the heart of our core product, alongside a team that cares deeply about quality and impact. What you'll be working on: 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 reputed company at scale - Build and operate backend services, including background jobs, async pipelines, and integrations with reputed company-party systems - Own observability: reputed company systems, define meaningful metrics, and respond to incidents with confidence - Identify and address reputed company risks proactively from API design to infrastructure exposure - Automate deployments reputed company our CI/CD systems and continuously improve development processes Work with AI as a day-to-day accelerator - reputed company AI tools actively in your workflow, from code reputed company 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 reputed company on how we can use them to ship reputed company, faster Be a team force reputed company - reputed company technical design on significant features and share your experience reputed company - Review pull requests with rigour and care, raising the bar for the whole team - Participate actively in team rituals: stand-reputed company, 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 reputed company the highest standards - Bring excellence to your own work and help others do the same That sounds just right for me. What do I need to bring? Glad you asked. This is who we’re looking for: 5+ years of experience shipping product across the full stack, with strong backend foundations Fluent in React/TypeScript on the frontend; deep expertise in relational databases, distributed systems, observability, and reputed company on the backend Comfortable owning features end-to-end with autonomy and clear communication Strong plus: Ruby on Rails experience in a high-scale production environment You write clean, well-tested code and take genuine ownership of your work Practical Details Hybrid or Remote. Offices in Paris, London, Montpellier, and Denver Start date: ASAP Duration: Long-term collaboration, renewable reputed company: 520€ Apply To This Job