---
title: Senior Backend Developer / Tech Lead (TypeScript/Node.js) at Fintech (crypto wallet/on-ramp)
description: **#vacancy**** ****#job**** ****#remote**** ****#hiring**** ****#BackendDeveloper**** ****#fintech**** ****#crypto**** ****#blockchain**** ****#TypeScript**** ****#NodeJS**** ****#NestJS**** ****#micr
---

# Senior Backend Developer / Tech Lead (TypeScript/Node.js)

**Company:** Fintech (crypto wallet/on-ramp)  
**Location:** Remote  
**Posted:** 2026-08-17  
**Apply by:** 2026-10-01

**Tags:** typescript, node.js, react, backend

[Apply / View original posting](https://t.me/Pol_relocation/56690)

## Job description

**#vacancy**** ****#job**** ****#remote**** ****#hiring**** ****#BackendDeveloper**** ****#fintech**** ****#crypto**** ****#blockchain**** ****#TypeScript**** ****#NodeJS**** ****#NestJS**** ****#microservices**** ****#PostgreSQL**** ****#Web3** **#Tech**** ****#Lead**** ****#wallet**** ****#onramp**** ****#offramp**** ****#cryptocards**

👩🏻‍💻 **Role: Senior Backend Developer **/ **Tech Lead** **(TypeScript/Node.js)
**💰 **Product:** **Fintech (crypto wallet, on/off-ramp, crypto cards)**
📍 **Remote | Full-time**

**What you'll do:
**🔧 **Own backend architecture across two large-scale platforms** (30+ and 25+ microservices) — system design, API contracts, data flow, inter-service communication.
🔧 **Lead complex integrations with payment providers, card issuers, and blockchain networks** — retries, circuit breakers, graceful degradation in production.
🔧 **Drive performance:** profile slow services, design caching strategies, optimize queries, plan for scale.
🔧 **Shape technical direction and make architectural decisions**.
🔧 **Build and extend AI-powered internal tools and automations** — our team runs LLM-based systems across the full dev cycle, and you'll take it further.

**What you bring:
**💡 **5+ years TypeScript/Node.js in production.** **NestJS for 2+ years** — modules, guards, interceptors, microservice transports.
💡 **Deep PostgreSQL: **schema design, indexing, EXPLAIN ANALYZE, zero-downtime migrations, database-per-service pattern.
💡 **Real microservices experience** — RPC + pub/sub, message brokers, idempotency, eventual consistency, saga/outbox. Not a monolith split into folders.
💡 **Production blockchain (MUST-HAVE)** — HD wallets (BIP32/BIP39), smart contracts, ABI, multichain, on-chain transactions with real user funds. ethers.js / viem / @solana/web3.js.
💡 **AI-driven workflow (MUST-HAVE)** — you use Claude, Copilot, or Cursor daily. You've built automations or LLM-powered tools, not just prompted ChatGPT for code snippets.
💡 System design skills — you can whiteboard a distributed system and defend every decision to engineers and stakeholders alike.
💡 **English Upper-Intermediate. Russian — fluent.
**
**Nice to have:
**NATS JetStream (streams, consumers, delivery policies), observability stack (OpenTelemetry, Prometheus + Grafana, pino, distributed tracing), Kubernetes with Helm/Kustomize, fintech domain (PCI DSS, KYC/AML, payment systems), experience mentoring mid-level engineers, React basics for back-office UIs.

**What we offer:
**✔️ **Fully remote** — international team, async-friendly culture.
✔️ **Two career tracks:** grow into Tech Lead or go deep as Staff/Principal IC. Your call.
✔️ **Real architectural ownership** — not ticket execution. You shape how the platform evolves.
✔️ **An engineering culture built around AI tools at every stage: **analysis, implementation, code review.
✔️ **Competitive salary, transparent feedback, low bureaucracy.
**
📩 **Apply if you've shipped systems that handle real money, want ownership over architecture**, **and treat AI as a multiplier**: https://utorg.teamtailor.com/jobs/8220725-senior-backend-developer-typescript-node-js

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