Principal Engineer (f/x/m)

Remotely; Frankfurt; Hybrid; EUR 120.000 - 190.000; Vollzeit

Benefits dieser Stelle

Flexible hybrid work model (Frankfurt+

High ownership and real impact

Flat structures

Collaborative international team

Work on high-impact products fighting:

Zusammenfassung

spotixx, a Frankfurt-based FinTech, seeks a deeply experienced technologist to own the platform design and ship high‑quality code. You will drive architecture, data models, and security reviews while staying hands-on on critical builds.

You will lead design reviews, mentor peers, and collaborate with bank architects in German and English to align strategy with enterprise needs. In this role you’ll shape scalable, secure systems, build AI‑enabled workflows, and represent technical decisions to

Qualifikationen

• 8+ years of hands-on production software experience with ownership of systems design.
• Fluent German and English for engagements with German banks.
• Experience delivering in large enterprise contexts with security reviews.
• Strong systems design across distributed services, data, and integrations.
• Familiarity with coding agents, AI-assisted building, and multi-tenant SaaS.
• Ability to influence and elevate engineering teams and translate risk for business.

Aufgaben

• Own platform design including architecture, data models, contracts and boundaries.
• Stay hands-on on high-risk parts of builds and ship learnings back to the team.
• Set design standards for architecture, security and verification patterns.
• Design for security and scale to banking-grade load and scrutiny.
• Raise team output through direction, design reviews and pairing.
• Build AI leverage with agentic workflows and guardrails.
• Represent technically to customers, including workshops with bank architects.
• Partner with management on strategy and prioritisation.

Kenntnisse

Systems design

Distributed systems

Security engineering

AI integration

Leadership

German language

English language

Tools

GCP

AWS

Azure

Kubernetes

CI/CD

Terraform

OAuth/OIDC

Jobbeschreibung

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.

Tasks

• Take ownership of the platform's 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.

Requirements

• 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.

Benefits

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!