Senior Fullstack Engineer

In this role, you will:

• Design, build, and maintain modern frontend features across our core web applications and interfaces
• Collaborate closely with product, design, and backend engineering to deliver intuitive, performant user experiences
• Take ownership of key frontend components and contribute to architectural decisions
• Develop and iterate on full-stack features, using TypeScript across the stack and Next.js on the frontend
• Shape the look, feel, and functionality of data-intensive tools that empower users to understand and reduce their emissions

This role is part of the Engineering team - a group focused on building scalable infrastructure for carbon intelligence, working closely with product managers and climate scientists., * Frontend & Backend: TypeScript on both the frontend (React) and the backend (NextJS), and Rust for our Core API.

• Database: PostgreSQL
• Infrastructure: Vercel and AWS
• Source Control & CI/CD: GitHub

• Third-Party Applications:Auth0 for authentication
• Datadog for observability

Why Join Us?

• Make a real impact on climate change through technology
• Join a collaborative, values-driven and mission-first team
• Work on challenging and meaningful problems from Day 1
• Enjoy a remote-first culture and flexible working arrangements

Role Requirements

• 5+ years of experience building frontend and full-stack applications, ideally in SaaS environments
• 3+ years of production experience with TypeScript and Next.js, building and maintaining full-featured web applications
• Proficiency in RESTful API integration, state management, and component-based UI architecture
• Strong working knowledge of PostgreSQL or similar databases
• Familiarity with Rust and/or AWS infrastructure is a plus
• Structured, outcome-oriented mindset with strong problem-solving and communication skills
• Self-driven and comfortable working autonomously in a distributed team setting

Compensation: Competitive salary and benefits, including employee stock options, learning stipend, regular team offsites, and more

If you're looking for a role that has an impact on the world, and not just a balance sheet, Climatiq is the place for you. We're a fast-growing startup embedding carbon intelligence into business decisions worldwide. Our platform-combining the world's leading emissions database with sophisticated AI and calculation tools-helps thousands of sustainability teams work faster and reduce emissions across corporate and product carbon footprints. Our team is united by fighting climate change. We value both speed and quality because the crisis demands we move fast without cutting corners. That requires trust, clear communication, and everyone delivering excellent work. Our HQ is in Berlin, and we have a remote-friendly team across Europe. We are supported by world-renowned investors including Alstin Capital, Singular, Cherry Ventures and more, and we're a certified B Corp., Climatiq provides an embedded carbon intelligence software that enables developers to automate GHG emission calculations based on verified scientific models. Its suite of products includes the largest dataset of emission factors, and intelligent APIs that integrate with any existing software for real-time monitoring of greenhouse gas emissions., BerlinStartupJobs is the leading platform for inspiring jobs in Europe's new startup capital. Founded in 2011, our aim is to connect startups and established tech companies in Berlin with the best talents. Read more >>