Summary
✨ AI‑Generated
A fully remote backend engineering role for an experienced developer who will split time between evolving a large Java-based system and building a new platform from scratch using Go, Vue, and PostgreSQL. The role offers the opportunity to become the team's Go specialist while developing expertise in a complex financial domain. Candidates should have at least five years of backend engineering experience, including three or more years working with Go in production, and be able to overlap with GMT+3 working hours for at least six hours per day.
Highlights
Fully remote work with flexible arrangements, an opportunity to become the team's Go reference point, exposure to both modern platform development and a mature financial system, and onboarding support for the Java stack and financial domain.
Description
Remote Full-time position
Company Description
STB Union is the ultimate financial app for everyday money management needs.
It offers a multicurrency account and STB Visa card, worldwide money transfer app, 24/7 currency exchange, and more.
With STB Union, you can effortlessly manage your finances and transactions.
Role Description
This is a full-time Backend Engineer role at STB Union, offering flexible remote work arrangements.
Candidates must have overlapping working hours with time zone GMT+3 for at least 6 hours daily.
The work splits roughly 50/50 between two streams: maintaining and extending our existing system - a large Java monolith with microservices around it.
Building a new platform from scratch on Go, Vue and PostgreSQL, AI-first with Claude Code.
You would become the team's Go reference point while the team onboards you on Java and on a complex financial domain.
Required Qualifications
- 5+ years of backend engineering, including 3+ years of production Go
- Genuine willingness to work in Java - roughly half the work is Java on a legacy codebase
- Experience developing new features and architecting a codebase
- AWS (ECS/SQS/RDS), PostgreSQL, Git (GitLab/GitHub), Docker
- Daily use of AI coding tools, with full ownership and review of everything that ships
- Prior experience working remotely in a distributed team
- Fluent in Russian (C1) and English (B2) - both verbal and written
- Experience in fintech or banking sectors
Preferred Qualifications
- Experience with Java and Spring Boot (or Vert.x)
- Experience with Vue 3 — the frontend of the new platform
- Experience with Kubernetes, NATS or Kafka
- Experience with more than one programming language
Core Responsibilities
- Leading end-to-end feature delivery together with Product/QA/DevOps teams — you own the feature through design, implementation, tests, review and production
- Building Go services for the new platform, plus Java features and integrations on the existing one
- Designing scalable solutions for complex business problems and contributing to technical architecture decisions
- Writing maintainable well-tested code with Claude Code
- Participating in manual and AI code reviews and providing constructive feedback
- Monitoring and maintaining production systems
- Implementing best practices for security and performance
Tech Stack: Go/Java/SpringBoot/Vert.x, AWS (ECS, SQS/SNS, S3, ElastiCache), PostgreSQL, Terraform, GitLab, Docker, K8s, Grafana, Angular/Vue 3, React Native.
Language Requirement Note: This position requires fluency in Russian and English due to team composition and business requirements.
