Principal Engineer (fxm)

spotixx is a Frankfurt-based European FinTech building technology for the regulated financial sector. Since 2019 we have grown into a team of 60 professionals with deep roots in the German and European banking landscape shaped by years of hands-on experience in fraud investigation and financial crime prevention. We specialize in Anti-Money Laundering (AML) and fraud detection enabling secure compliant data exchange between financial institutions. Using advanced data science and AI we are helping shift the industry toward collaborative intelligence and more effective prevention. As a self-funded company we focus on sustainable growth and real impact. With offices in Frankfurt and Wilhelmshaven and strong inbound demand we are expanding our team. If you want to work on meaningful problems grow with the company and be part of a flexible hybrid work environment spotixx offers the opportunity to do just that.

• Take ownership of the platforms systems design including the architecture data models contracts and integration boundaries and the trade-offs behind them.
• Stay hands-on through the highest-risk parts of the build and ship code the team learns from.
• Set the design standard: the architectural security and verification patterns the team builds to and the design reviews that uphold them.
• Design for security and scale building systems that withstand banking-grade load and scrutiny.
• Raise the technical output of the team through direction design review and pairing.
• Build AI leverage: agentic workflows with the evals and guardrails needed to ship reliably.
• Represent us technically with customers including workshops and due diligence with bank architects CISOs and risk teams in German and English.
• Partner with senior management and your manager on strategy and prioritisation.

• A deeply experienced hands-on technologist typically with 8 years building production software able to own systems design and still ship code others learn from.
• Fluent in German and English both essential for our engagement with German banks.
• Large-enterprise context: you have delivered systems inside a large corporate or for a vendor supplying one and understand how enterprise architecture reviews security assessments and change control work.
• Excellent systems design skills covering distributed systems services contracts data and integrations.
• AI-forward: you already use coding agents and AI-assisted building in your own work or personal projects.
• A track record of raising the engineers around you through influence design review and example.
• Senior-management maturity: you translate technical risk into terms the business can act on.
• Credible and calm when bank architects and risk functions question design choices.
• Security-minded: secure-by-design thinking OAuth/OIDC and data protection appropriate to banking.
• Rigorous about quality: you design for verifiability and verify rather than assume.
• Regulated-industry experience with banking or FinTech a major bonus.
• Cloud experience: GCP preferred with AWS or Azure also welcome plus familiarity with IaC containers and CI/CD.
• Nice to have: Python/FastAPI React/TypeScript the GCP stack privacy-enhancing technology or applied cryptography (MPC especially) multi-tenant SaaS and the anti-financial-crime domain.

Attractive compensation.

Flexible hybrid work model (Frankfurt home office within Germany).

High ownership and real impact from day one.

Flat structures that let the team move quickly.

Collaborative international team culture.

Work on high-impact products that help fight financial crime.

Own the architecture of our core data-sharing platform and build it hands-on.

We welcome applications from all qualified people as diversity enriches us. Your perspective matters: regardless of gender age origin religion sexual orientation or disability. Applicants with disabilities will be given preference when equally qualified.

We are looking forward to receiving your application!