Senior Fullstack Engineer (B2B SaaS Startup)

About the Position

Senior Fullstack Engineer (B2B SaaS Startup)

Berlin

Full-time

Permanent employee

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Our Mission

Join us in reshaping global trade in a fast-growing startup!

We are traide AI – a VC-backed, B2B deep tech startup based in Berlin, using AI to solve one of the most overlooked yet critical challenges in international trade: customs compliance. Our software automates product classification, reduces regulatory errors, and helps customers save up to 83% of their time.

Trusted by leading brands like Siemens Healthineers, Koro, and Jack Wolfskin, we've achieved 3x growth over the past 12 months – and we're just getting started.

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Responsibilities

Product Development

• Own the end-to-end delivery of new features and improvements in our web application: shaping everything from technical design to production release
• Write both client-side and server-side TypeScript code within our well-established codebases
• Tackle complex UI challenges and optimize for performance at scale

Cross-functional collaboration

• Work alongside designers to shape user flows, evaluate feasibility, and improve interfaces and user experience
• Partner with AI engineers to bring cutting-edge research and prototypes into production-ready features
• Contribute your perspective to product discussions, helping set direction with both technical and user impact in mind

Code quality & technical excellence

• Set and uphold high standards for code quality, architecture, and best practices within the team
• Design and maintain robust automated tests to ensure reliability and quality at scale
• Select and configure tooling that improves developer experience and keeps our CI/CD pipeline efficient
• Proactively identify and solve technical challenges before they become blockers

Knowledge sharing

• Share your expertise through code reviews, mentoring, and documentation - helping others level up and ensuring our knowledge grows as the team grows

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Requirements

• 10+ years of hands-on software engineering experience, ideally building complex products in dynamic environments
• Bachelor's degree (or higher) in Computer Science or a related discipline
• Deep proficiency in TypeScript, including advanced type-level programming
• Solid understanding of fullstack development: a view framework (React or similar), HTTP APIs (GraphQL/REST), server-side TypeScript (Node.js), and relational databases (Postgres or similar)
• You embrace AI tools in your workflow and are driven to master emerging technologies
• You champion code quality and drive best practices across the team
• You thrive in fast-moving environments - seeking opportunities to learn, grow, and both give and receive feedback
• Strong English skills (B2 or better); German is a plus but not required

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Nice to Have

• Ideally, you excel in a specific area of fullstack development that allows you to help others with especially challenging aspects of it - but that's a nice-to-have, not a must
• Curiosity about adjacent fields like Design, Product Management, DevOps, and AI Engineering is a plus

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We Offer

• Varied day-to-day: Every feature comes with unique technical challenges → no two days are the same
• Visible impact: You'll see the direct results of your work → for both our customers and traide AI
• Direct impact on product: Your technical decisions shape what we ship and how it performs
• Team culture: You'll be part of a team that communicates transparently, values humor, and supports each other with respect and sincerity
• Flexible working: We enjoy working together in our office at Senefelder Platz in Berlin Prenzlauer Berg/Mitte. Home office is also an option for two days per week
• Be part of our regular team events (boot trips, bowling etc.)
• Enjoy benefits like an Urban Sports Club membership

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About the Company

We value diversity and are committed to creating an inclusive environment for all employees. If you're passionate about making a difference and eager to learn, we'd love to hear from you – even if you don't meet every requirement.

And one more thing: We’re not just building an AI product, we’re building an AI company. From how we think about processes to how we grow teams and shape our culture – AI is at the core of how we operate.

Application process: You will receive feedback within two weeks. The process includes interviews, a practical challenge, and conversations with our team.