Software Engineer – Backend

As a (Senior) Software Engineer on the TaxCore team, you'll be part of a shared engineering team that serves both Taxfix and Steuerbot. Based in Berlin or Stuttgart with a flexible hybrid setup, you'll build and evolve the core shared services that power core experiences across both brands.

What you'll do

• Build, maintain, and continuously improve core shared services and internal tools that power stable, intuitive user experiences for both Taxfix and Steuerbot.
• Design and implement scalable, reliable backend systems and architecture that enable core functionality across Taxfix and Steuerbot.
• Collaborate across teams to design, ship new features and share capabilities, working pragmatically beyond the boundaries of your immediate team.
• Contribute to shaping the long-term technical direction of core backend services, bringing both depth of expertise and a pragmatic, outcome-focused mindset.
• Contribute across the team's stack, including occasional frontend work on internal tooling.
• Take ownership, remove blockers, and help the team stay focused on what matters most.

What you'll need

• Strong backend engineering experience and a proven track record of building and evolving complex, scalable systems in production environments.
• Highly proficient in at least one modern programming language, with experience in Go strongly preferred.
• Solid experience with modern software architecture concepts, including API design, databases, and cloud-based systems, and hands-on experience integrating a diverse range of third-party and internal APIs.
• Comfortable with containerization and DevOps concepts, with practical experience using tools like Kubernetes.
• Deep care about code quality—writing performant, maintainable, and elegant code.
• Familiar with AI-assisted development tools like Claude Code.
• Pragmatic, hands-on builder who cuts through complexity and enjoys turning ideas into well-crafted solutions.
• Collaborative, direct, and outcome-oriented, thriving in cross-functional environments.

Nice to have

• German language skills, as this team works closely with Germany-specific tax logic.

What they offer

• Free mental health coaching sessions and yoga.
• Monthly allowance for flexible services, rollover available.
• Employee stock options for all employees.
• 30 annual vacation days and flexible working hours.
• Generous learning budget and guidance from internal L&D experts.
• Work from abroad for up to six weeks annually.