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

Sygnum is a global digital asset banking group, founded on Swiss and Singapore heritage. We empower professional and institutional investors, banks, corporates and DLT foundations to invest in digital assets with complete trust. Our team enables this through our institutional-grade security, expert personal service and portfolio of regulated digital asset banking, asset management, tokenisation and B2B services.

In Switzerland, Sygnum holds a banking licence and has CMS and Major Payment Institution Licences in Singapore. The group is also regulated in the established global financial hubs of Abu Dhabi and Luxembourg.

We believe that the future has heritage. Our crypto-native team of banking, investment and digital asset technology professionals are building a trusted gateway between the traditional and digital asset economies that we call Future Finance. To learn more about how Sygnum’s mission and values are shaping this digital asset ecosystem, please visit sygnum.com and follow us on LinkedIn and X.

Our Values

A key pillar of our success are the Sygnum values that define and unite us a team. We proudly call them our SYGN values:

• S stands for the importance we hold in Seeking and seizing opportunities, and the way we take personal ownership for delivering results for our clients;
• Y represents the way we say Yes to maintaining the highest level of integrity and fairness in everything we do. Sygnumers always display confidence without attitude;
• G reminds us to always Grow and win together. We only succeed by supporting each other and challenging ourselves, and our team-mates, to reach for new heights;
• N is here for Nose for value because we are always looking to focus on what matters most to our clients, partners and team.

Sygnum has one of the most diverse teams in the industry. Diversity plays a central role in keeping our work culture open, our teams productive and energised, and our solutions at the forefront of the industry. In the spirit of our SYGN value to “grow and win together”, we fully embrace an equal opportunity mindset in the way we onboard, develop and promote our team members.

About the role

The Custody Value Stream is a cross-functional team committed to the secure custody of digital assets, our foremost mission. As part of a regulated digital asset bank, we are entrusted with the safekeeping 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 specialists in product management, engineering, and architecture to deliver and operate scalable, end-to-end custody solutions. 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

• Actively participate in developing new features and improvements by writing and reviewing high-quality, secure code with comprehensive test coverage
• Constantly enhance the quality and security of applications, identifying existing technical debt and making plans to repay it
• Respond to production incidents promptly and efficiently, collaborating with cross-functional teams to resolve issues and restore service continuity
• Collaborate with platform engineers to enhance CI/CD pipelines and streamline release processes
• Collaborate with SRE engineers and solution architects to optimize application availability, resilience, and observability
• Nurture and guide more junior software engineers through coaching and mentoring
• 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 bake those aspects in the software development lifecycle
• You are comfortable taking ownership of the whole development lifecycle, from designing solutions to running the application in production
• You are proactive and get motivated with new opportunities and challenges

What will make you stand out?

• Expertise in Java and/or Typescript
• Expertise in security and applied cryptography
• Expertise in an industry framework such as 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 AWS is beneficial
• 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

Joining Sygnum means being part of a dynamic, global team that is building a trusted gateway between the traditional and digital asset economies. Working at Sygnum, you will experience our fast-paced, exciting work environment that embraces meritocracy and collaboration and open communication. Alongside our ambitious long-term mission, we also come together for reaching important milestones and annual crypto-industry anniversaries like Bitcoin Pizza Day, and regularly celebrate together at themed company events as part of our journey to shape Future Finance.

Sygnum offers a comprehensive package of benefits for all team members. They include:

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