Senior Software Engineer - Node

Senior Fullstack Software Engineer (Node.js, React, TypeScript)

Location: Remote (EU)

Company: Series B AI Company, Berlin

Type: Full-time

About the Company

We are a Berlin-based, Series B AI company building advanced products powered by cutting-edge machine learning. With strong backing and rapid growth, we are scaling both our platform and our team to bring AI into real-world, high-impact use cases.

Our engineering culture is deeply technical, pragmatic, and product-focused. We care about building systems that are not only intelligent, but also reliable, scalable, and well-designed.

The Role

We are hiring a Senior Fullstack Engineer to help scale our core product and infrastructure. You will work across the stack using Node.js, React, and TypeScript, owning features end-to-end and contributing to key architectural decisions.

This role sits at the intersection of product and platform, turning complex AI capabilities into seamless user experiences.

What You’ll Do

• Build and scale end-to-end product features across frontend and backend
• Design robust APIs and services in Node.js and TypeScript
• Develop high-quality React applications with a focus on performance and usability
• Collaborate closely with ML engineers to productionize AI models
• Drive architectural decisions as the system scales post-Series B
• Improve engineering standards across testing, observability, and developer experience
• Mentor engineers and contribute to a high-performance engineering culture

What We’re Looking For

• Strong production experience with Node.js, TypeScript, and modern React
• Experience designing scalable systems in a growth-stage environment
• Solid grounding in system design, data structures, and engineering fundamentals
• Ability to operate with ownership in a fast-scaling company
• Strong collaboration skills across product, design, and ML teams

Nice to Have

• Experience with AI/ML-powered products or data-intensive systems
• Familiarity with cloud platforms (AWS, GCP)
• Experience in event-driven or distributed architectures
• Background in scaling systems post-Series A or B

What We Offer

• Remote-first within the EU
• Competitive salary and meaningful equity
• Opportunity to shape the technical direction of a scaling Series B company
• High ownership and autonomy
• A small, senior, highly technical team