Senior Scala Backend Developer

This is a fully remote position, open to applicants in Ukraine, +3 more countries.

📋 Description

• Design, develop, and sustain backend services utilizing Scala 3 and Cats Effect.

• Assist in defining the architecture and technical vision for a new FinTech product.

• Create dependable workflows for financial operations, domain events, and data projections.

• Implement Event Sourcing, CQRS, and Domain-Driven Design methodologies in production systems.

• Develop data and storage solutions with PostgreSQL, Redis, and MinIO.

• Enhance system performance, resilience, observability, and maintainability.

• Write automated tests and uphold high engineering standards across the codebase.

• Conduct code reviews, provide technical feedback, and support sound implementation decisions.

• Investigate production issues and deliver sustainable resolutions.

• Contribute to the ongoing development and support of the existing platform.

• Collaborate closely within a distributed four-person engineering team and contribute to technical and product decisions.

⛳️ Requirements

• Strong professional backend development experience at a senior level.

• Advanced commercial experience with Scala, preferably including Scala 3.

• Practical knowledge of functional programming and effect systems like Cats Effect.

• Solid experience with PostgreSQL and production-grade data modeling.

• Understanding of distributed systems, asynchronous processing, and concurrency.

• Experience in designing maintainable backend services and contributing to architectural decisions.

• Confident approach to automated testing, code review, and performance optimization.

• Eligibility to work or provide services and receive payments legally within the EU, subject to the employer’s compliance and contracting requirements.

• Experience in FinTech, payments, banking, or other transaction-heavy systems.

• Hands-on knowledge of Event Sourcing, CQRS, or Domain-Driven Design.

• Experience with Redis and S3-compatible object storage solutions like MinIO.

• Familiarity with financial ledgers, transaction processing, event projections, or reconciliation.

• Strong ownership of technical decisions and delivery outcomes.

• Clear communication skills within a small, distributed engineering team.

• Structured thinking when engaging with complex financial domains.

• Pragmatic judgment when balancing architecture, delivery speed, and maintainability.

• Ability to review solutions constructively and articulate technical trade-offs.

🏝️ Benefits

• Fully remote work from an eligible European location.

• Direct influence over the architecture of a new FinTech product.

• Significant ownership within a focused four-person engineering team.

• Opportunity to work with a modern functional Scala stack and complex financial systems.

• Potential for growth through product development, architectural work, and technical leadership.