Senior Software Engineer (Backend): Treasury Automation

Role overview

Build backend systems that automate how funds are positioned, moved, settled, and safeguarded across financial accounts, providers, and jurisdictions. The work sits within a treasury automation team and combines distributed systems engineering, financial correctness, and operational ownership for services that move real money.

Responsibilities

- Build liquidity management capabilities to track balances across accounts, venues, and chains and rebalance funds automatically. - Develop services that support accurate, timely settlement with liquidity providers and partners. - Automate safeguarding and segregation of client funds across entities and jurisdictions. - Improve rules engines that turn treasury policy into fund movements for internal and customer use. - Design event-driven services and long-running workflows that are idempotent, traceable, and auditable. - Own production readiness through monitoring, alerting, runbooks, incident response, and an on-call rotation; shape designs, review code, and mentor engineers.

Requirements

- At least five years of backend engineering experience with Java or Kotlin and Spring Boot. - Strong distributed systems experience, including microservices, event-driven architecture, relational databases, and caching. - Experience with account or wallet systems where lifecycle management, correctness, and auditability are essential. - Knowledge of domain-driven design, hexagonal architecture, and REST API design with attention to compatibility. - Production operations experience, including on-call, incident response, and monitoring; familiarity with CI/CD, infrastructure as code, and observability tools. - Clear communication with product, operations, and engineering teams, and willingness to join an out-of-hours on-call rotation.

Nice to have

- Experience with payments, banking, regulated financial services, embedded finance, or business payment platforms. - Familiarity with multi-tenant systems, high-throughput database migrations, validation engines, feature flags, or crypto-related products. - Experience with orchestration tools such as Temporal and platforms such as Kubernetes, ArgoCD, and Grafana.

Benefits and work setup

- Hybrid or remote working, with flexible hours and a flexible holiday approach. - Salary ranges are listed for Bulgaria (€85,000–€95,000), Spain (€95,000–€105,000), and Poland (350,000–420,000 zł); compensation depends on experience and relevant certifications. - Opportunities to visit offices in different countries.