Tech Lead, Senior Backend Developer – TypeScript, Node.js
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Job Description
Tech Lead/Senior Backend Engineer owning microservice architecture and blockchain integrations. Building stablecoin payment infrastructure for Utorg’s global fintech platform.
Responsibilities:
- Own backend architecture across two large-scale microservice platforms with 30+ and 25+ services
- Lead integrations with payment providers, card issuers, blockchain networks, and third-party APIs
- Take responsibility for integration reliability in production
- Identify bottlenecks, design caching strategies, optimize database queries, and support growing platform load
- Make architectural decisions, evaluate trade-offs, and influence engineering standards
- Contribute to AI-powered operational and development workflows
- Maintain and extend React-based back-office admin dashboards for approximately 20% of working time
- Own features end-to-end from planning and architectural design through implementation, testing, monitoring, and improvement
- Collaborate with Product, QA, Frontend, Mobile, and other cross-functional teams
- Produce technical documentation, participate in code reviews, and share knowledge
- Participate in a shared on-call rotation of approximately one week per month
- Independently drive complex integrations and partially offload the Tech Lead
- Ship initial features within 30 days, independently drive a complex integration or major feature within 60 days, and make architectural decisions within scope by 90 days
Requirements:
- 5+ years of production backend development experience with TypeScript/Node.js as the primary stack
- 2+ years of production experience with NestJS, including modules, providers, middleware, guards, interceptors, and microservice architecture with custom transports
- Production blockchain experience with on-chain transactions, multiple networks, and real user funds
- Understanding of HD wallets (BIP32/BIP39), smart contracts, ABI, ERC-20/SPL tokens, and account-based versus UTXO models
- Experience with ethers.js, viem, and solana/web3.js
- Active daily use of AI tools such as Claude, Copilot, or Cursor
- Experience optimizing business or organizational processes with AI/LLMs
- Deep PostgreSQL expertise, including schema design, indexing, query optimization, zero-downtime migrations, and database-per-service patterns
- Hands-on microservices experience with RPC, pub/sub, message brokers, idempotency, eventual consistency, saga/outbox patterns
- System design experience, including service decomposition, API contracts, data-flow architecture, and capacity planning
- Complex production integration experience with third-party APIs, payment systems, or similar external services
- Knowledge of retries, circuit breakers, and graceful degradation
- Performance engineering experience with profiling, caching, load analysis, and bottleneck identification
- Strong testing discipline with Jest, integration tests using real databases, and microservice testing
- Security-conscious development in fintech and crypto environments
- Technical research skills for evaluating trade-offs, testing hypotheses, and making data-driven architectural decisions
- English proficiency at Upper-Intermediate level
- Fluent Russian
- Nice to have: NATS JetStream, OpenTelemetry, Prometheus, Grafana, pino, Kubernetes, Kustomize/Helm, PCI DSS, GDPR, KYC/AML, payment systems, mentoring, and React basics
Benefits:
- Work fully remote as part of an agile, international team
- Engineering culture encouraging adoption of modern tools and development practices, with influence over technologies, workflows, and technical decisions
- Two career tracks: Tech Lead or Staff/Principal IC
- Career progression and professional development
- Competitive salary range based on individual performance review
- Transparent feedback and culture valuing ownership, open dialogue, and visible impact
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