Senior Software Engineer

Who you are

• Fluency in written and spoken English, our business language
• At least 5 years of experience in software development, ideally in a product-focused environment
• Strong expertise in TypeScript, particularly for backend development with Node.js
• A proven track record of designing and delivering high-quality, scalable products
• Strong architectural knowledge, including experience with micro-services and maintainable system design
• The ability to lead initiatives and make sound decisions with a high degree of ownership and autonomy
• A product-oriented mindset, with the ability to contribute to discovery, prioritisation, meetings, and squad rituals
• Experience working in financial services, payments, fintech, or another regulated industry
• Experience with wallet, treasury, cash management, accounting, reconciliation, or payment account products
• Experience integrating with third-party providers through APIs, external services, and webhooks
• Experience with ledgers, financial data consistency, event-driven systems, or event-sourcing patterns
• Knowledge of compliance, security, banking operations, or maintaining reliable regulated platforms
• Experience with AWS, Kubernetes, Terraform, or infrastructure-as-code
• Experience supporting international, multi-entity, or multi-currency use cases

What the job involves

• We are looking for a talented Senior Software Engineer to join our Product, Design, and Engineering organisation and help shape the future of spend management
• You will join our Wallet squad, part of the Payment Groups, helping build reliable, scalable, and user-friendly financial services for finance teams
• This role is primarily backend-focused, with an expected split of approximately 70% backend and 30% frontend
• You will take ownership of functional and technical topics across the full feature lifecycle, from discovery and specification through technical design, development, testing, documentation, deployment, and maintenance
• As a Senior Software Engineer, you will also help shape the squad’s technical direction, lead initiatives, support strong engineering practices, and contribute to a positive and collaborative team culture
• Design, develop, and maintain reliable services for wallet accounts, deposits, balances, cash movements, and payment flows
• Build clear and trustworthy experiences that help finance teams understand current and future cash positions
• Contribute to capabilities that improve liquidity, funding flows, and the movement of funds in, out, and between entities
• Work on international and multi-entity use cases, including multi-currency wallet capabilities
• Contribute to accounting, segregation, reporting, and operational workflows that support accurate and compliant financial services
• Define and evolve robust architectures, applying principles such as hexagonal architecture, clear domain boundaries, and strong data consistency
• Lead technical initiatives from discovery and design through implementation, delivery, and continuous improvement
• Use AI-assisted development tools daily, share effective practices, and help promote responsible usage across engineering

The application process

• As we are an international team, please submit your application and CV in English

Benefits

• Transport reimbursement: Monthly contributions to your transport card (metro, bus or train)
• Offsites and events: Regular team events to exchange with other Spendeskers and get to know each other better
• Annual leave: 28 days per year to rest and relax
• €50 on your Spendesk card: To buy anything you need for work
• For Spendeskers with kids: Generous parental leave & a lot of flexibility for working parents
• Great offices: In the hearts of Berlin, London, Madrid, and Paris