Senior Fullstack Software Engineer m/f/d in B2B SaaS AI Startup

At traide AI, we believe customs specialists deserve smarter, faster workflows—and we know the future of global trade depends on it. As a Fullstack Software Engineer, you’ll play a pivotal role in turning cutting-edge AI research into intuitive web experiences that transform how teams work.

You’ll join a tight-knit, VC-backed B2B startup—calm but ambitious—where your ideas shape both product and culture. Partner with designers, AI engineers, and product leads to architect and build features end-to-end, using TypeScript, React, and our GraphQL API. You’ll tackle complex UI challenges, optimize for performance, and define standards that keep our codebase healthy at scale.

If you’re driven by real customer impact, love sharing knowledge, and thrive in a fast-moving environment that values clear thinking over hype, let’s talk.

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.
• Collaborate with backend engineers to build seamless fullstack experiences, working closely with our GraphQL API.
• Act as the go-to frontend expert in a cross-functional team, tackling complex challenges and empowering others to contribute confidently.

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 and Technical Excellence

• Continuously optimize the frontend for speed, responsiveness, and maintainability.
• Set and uphold high standards for code quality, architecture, and best practices within the team.
• Proactively identify and solve technical challenges before they become blockers.
• 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.

Knowledge Sharing

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

• You bring 5+ years of hands-on software engineering experience, ideally building complex products in dynamic environments.

• You hold a bachelor’s degree (or higher) in Computer Science or a related discipline.

• You are deeply proficient in TypeScript, including advanced type-level programming.

• You are a React expert, with a strong record of architecting and delivering modern frontends.

• You embrace AI tools in your workflow and are driven to master emerging technologies.

• You know the web platform inside out—HTML, CSS, and browser APIs are your bread and butter.

• You have a solid grasp of Node.js fundamentals.

• You’re curious about adjacent fields like Design, Product Management, DevOps, and AI Engineering.

• 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.

✔️ A place where you can be your authentic self!

✔️ Startup culture with a passionate, international team forming an inclusive community

✔️ A work culture with a lot of flexibility and individual responsibility based on trust and integrity, where everyone strives to grow & learn

✔️ Regular events during and around work like hackathons, drinks and team events

✔️ Flexible hybrid work policy with days together in the office but also a contigent of weeks where you can work fully remote

Does this sound like an interesting opportunity? We would love to hear from you.

Our application process is short and consists of a screening call, a technical interview and an opportunity to get to know the team in person. We are looking forward to your application!