Senior Backend Engineer
SumsubLondon, United Kingdom
JavaMongoDBElasticSearchAirflow
Now we are looking for a Senior Backend Engineer to build and evolve backend services that power our core products.
What You Will Be Doing:
- Design and develop core platform components, services, and shared libraries that power every product team across the company.
- Build foundational infrastructure that enables product teams to deliver features faster while maintaining consistency, reliability, and security.
- Develop security-critical services for protecting sensitive data, secure access, and encryption.
- Design and optimize high-load distributed systems for image and video processing.
- Improve the performance, scalability, and fault tolerance of mission-critical platform services.
- Shape our observability platform by evolving monitoring, logging, tracing, and alerting capabilities.
- Plan and execute large-scale, zero-downtime data migrations.
- Expand and improve our multi-region infrastructure to meet latency, availability, and data-residency requirements.
- Drive architectural decisions and take ownership of platform initiatives from design to production.
- Work on a diverse set of technically challenging problems spanning distributed systems, infrastructure, security, and developer productivity.
About You:
- Strong experience with backend development (Java, databases, distributed systems)
- Confident in system design and building scalable, production-ready solutions
- Able to work independently and take full ownership of complex tasks
- Understand performance, reliability, and best practices for backend services
- Experience working in a product-driven engineering team
- Comfortable collaborating with other teams and contributing to shared codebases