Senior Distributed Systems Engineer

About Unit

Unit is a market leader in embedded finance. We offer ready-to-launch financial services - like banking and capital - and serve millions of end-users across ~100 customers, including Wix, Bill.com, Honeybook, Relay, and more.

We’re repeat founders with technical backgrounds, working hard to build a successful company that we’re proud to work at. Our product moves $40b+ annually and processes 12m+ API calls daily. We’ve raised $160m+ from top investors including Insight, Accel, and 60+ angels.

THE ROLE

As a key member of our engineering team, you’ll have a significant impact on shaping the direction of Unit’s platform and product. You will design and build backend services that operate in a large-scale distributed microservices environment, where business workflows span multiple systems and require careful handling of consistency, retries, failures, and long-lived execution.

You will own Unit features from design to deployment, solve complex distributed challenges, and collaborate with multiple teams across the company. For the right candidate, this is a rare opportunity to help build an industry-defining company from the ground up while working on problems in Banking, Payments, Cards, and Lending that demand precision, correctness, and accountability.

Key Responsibilities

• Implement enterprise-grade backend services that can handle Unit’s scale and use cases.
• Own and develop Unit features end-to-end from design through implementation, testing, and deployment.
• Solve diverse, complex problems in a large-scale distributed microservices environment.
• Design and implement workflow-based business processes spanning multiple microservices, with a strong focus on correctness under failure, observability, and resilience.
• Collaborate with various teams across Unit to deliver groundbreaking features in the fields of Banking, Payments, Cards, and Lending.
  
  

• 8+ years of backend development experience in a microservice environment
• Hands-on experience with building, deploying, and maintaining testable, scalable systems in a cloud environment
• Good understanding of critical production systems concepts - high availability, reliability, and scalability
• Experience with Durable Execution Frameworks or similar long-running workflow orchestration systems (e.g. Temporal, Cadence, AWS Step Functions, Azure Durable Functions)
• Experience with cloud platforms (e.g. AWS, GCP, Azure)
• Experience with CI/CD
• Production experience with Kubernetes - advantage
• Experience with Scala - advantage
• Passion for Software and Functional Programming - advantage
• Experience with ZIO / Cats / scalaz - advantage
• Experience with DDD, EventSourcing, CQRS - advantage