Senior Software Engineer, Custody Value Stream (80-100%)

About the role

• The Custody Value Stream is a cross-functional team committed to the secure custody of digital assets, our foremost service.
• As part of a regulated digital asset bank, we are inherently entrusted with the safeguarding of client assets, and we place security, compliance, and operational integrity at the heart of everything we do.
• We operate in an agile, product-led environment, bringing together specialties in product management, engineering, to deliver and operate scalable, end-to-end custody services.
• Our platform is continuously evolving to uphold the highest standards of security, reliability, and resilience; ensuring that client assets remain protected in an increasingly complex digital landscape.
• We are looking for a Senior Software Engineer to Join our agile Scrum team within the custody value stream, where you'll contribute to building secure, scalable, and innovative solutions that power our digital asset custody services.

Your main responsibilities

• Deliver code end-to-end — from writing and reviewing secure, well-tested code to running it confidently in production
• Drive continuous improvement of application quality and security, treating technical debt as a risk to be actively managed
• Ensure platform reliability by working across engineering disciplines — CI/CD, SRE, DevOps, and networking — to raise the bar on availability, resilience, and observability
• Grow the team's capability by mentoring junior engineers and raising engineering standards through example

Profile and Mindset

• You are passionate about building scalable backend services leveraging the latest industry standards
• You have a collaborative and growth mindset
• You care about quality and security and take whole ownership in the software development lifecycle
• You are comfortable taking ownership of the whole development lifecycle, from redesigning solutions to running the application in production
• You are proactive and get motivated with new opportunities and challenges

Our ideal candidate

• 8+ Experience in TypeScript and/or Java
• Expertise in security and applied cryptography
• Expertise in an industry framework such as NestJS, Spring or Quarkus
• Expertise in working with RDBMS (ideally Postgres)
• Working experience with utilizing Kafka
• Experience with distributed systems and infrastructure
• Designing flexible and robust REST APIs with an API first approach
• Understanding microservices, event driven architecture and being able to implement complex functionality with high quality and security
• Working knowledge of Docker and containerization
• Experience of working with Kubernetes is beneficial
• Experience of working with MM is beneficial
• Experience of working with AWS is beneficial

Our Engineering Culture

• Team first mindset
• We deliver frequently, with high quality and security
• We celebrate success and learn from our failures
• We are pragmatic and look for simplicity
• We have positive impact

Our Offer

• Attractive combination of market salaries and entrepreneurial incentive schemes
• Flexible Work at home policies
• Professional development via Mentoring and Buddy programs
• One-month fully paid sabbatical after five years of continuous employment