Full-Stack Software Engineer

About Us

We’re on a mission to make taxes effortless for everyone. Backed by top-tier investors, we’re building a platform that empowers fintechs, banks, and tax advisors to launch powerful tax features for their end users with just a few lines of code.

The Role

To drive this vision, we’re seeking an experienced Full-Stack Software Engineer (TypeScript) who has a passion for building products from the ground up, owning them end to end, across the stack.

You’ll be part of our core tech team laying the foundation of our platform — a team driven by low hierarchies and high impact. We’re headquartered in Berlin and offer a remote-friendly environment.

The Opportunity

In this role, you will:

• Actively shape the platform’s architecture and influence key product decisions
• Build the backbone of a tax infrastructure that will make taxes easier for all Europeans
• Enable fintechs to offer and create their own tax tools by integrating our system

Your Responsibilities

• Hands-on Ownership: Take full ownership of designing, implementing, and scaling the foundation of our platform from scratch
• Architect & Execute: Make key architectural decisions and build scalable systems that are robust, reliable, and maintainable under load
• Feature Delivery: Ship new features at high velocity without compromising code quality, reliability, or performance
• Culture Building: Play a key role in fostering a high-performing, collaborative engineering culture as we scale the team

Experience We’re Looking For

Strong technical background with 5+ years of full-time engineering experience, preferably across the following tech stack:

• Frontend Development: Proficiency in React, Next.js, and TypeScript; familiarity with Redux or Zustand, and styling frameworks like TailwindCSS or Styled Components
• Backend Development: Experience with Nest.js (or Express.js), designing scalable RESTful or GraphQL APIs, authentication (JWT, OAuth2), and event-driven architectures (Kafka, WebSockets)
• Database Management: Expertise in PostgreSQL, schema design, query optimization, and ORMs like Prisma
• Cloud Infrastructure (Nice to Have): Google Cloud Platform (Cloud Run, Functions), CI/CD with GitHub Actions, Docker, and Kubernetes

Note: If you don’t cover all aspects of the stack, we still encourage you to apply — we trust you can learn quickly!

Who We’re Looking For

• You thrive on autonomy, take ownership of details, and drive your projects from start to finish
• You prefer focused building and coding time over meetings
• You ship high-quality code efficiently and enjoy being productive
• You’re excited to work with a high-performing team of talented peers
• You’re ready to help shape the future of our engineering team and product

Bonus Points

• Knowledge of programming languages like Go or Kotlin
• Understanding of microservice architectures and high-load systems
• Experience in fintech startups or regulated industries like payroll, fintech, or tax
• Experience building embedded or white-label software products

What We Offer

• Impact from Day One: Your code will power tax tools used by financial institutions across Europe
• High-Performance Team: Work with ambitious, talented people who challenge and support your growth
• Hybrid/Remote Freedom: Flexibility to work remotely or from our Berlin hub
• Career Growth: Rapid growth potential as we build our engineering organization
• Creative Freedom: Freedom to implement your ideas and have real impact
• Learning Budget: Support for professional development through a dedicated budget

Important: This position requires a valid work permit for Germany at the time of application. We currently do not offer visa sponsorship or relocation support.