---
title: Senior Staff Full-Stack TypeScript Engineer at unspecified (fintech payments platform)
description: Hello Colleagues!
---

# Senior Staff Full-Stack TypeScript Engineer

**Company:** unspecified (fintech payments platform)  
**Location:** Kraków preferred, Poland; remote  
**Posted:** 2026-11-05  
**Apply by:** 2026-12-20

**Tags:** javascript, typescript, node.js, react, frontend, backend, fullstack

[Apply / View original posting](https://t.me/Pol_relocation/59283)

## Job description

Hello Colleagues!

**Looking for Senior Staff Full-Stack TypeScript Engineer

-Location: Kraków preferred**; candidates from other **locations in Poland are also considered**
-Type of work: Full-time\Remote.
-Contract B2B .**
**

Building a modern fintech payments platform combining traditional payment rails with crypto infrastructure, covering real-time processing, settlement, reconciliation, and wallet services.

**Must have:**
• Russian C1, English B2.
• 8+ years of production TypeScript/JavaScript experience across frontend and backend
• Deep React and GraphQL expertise (Apollo Server/Client)
• Strong hands-on experience building and operating AWS serverless systems
• NoSQL at scale (DynamoDB or similar) alongside PostgreSQL
• Experience leading technical direction for teams of 5–15 engineers (architecture, code reviews, mentoring)
• Proficiency with AI-assisted development tools, including 1+ year of experience with Anthropic Claude

**Nice to have:**
• Payments/fintech experience (settlement, PCI compliance, ledger systems, fee models)

**Additional details:**
**• Location: Kraków preferred**; candidates from other locations in Poland are also considered
• Hands-on IC role with daily coding, architectural decisions, and end-to-end technical ownership
• Stack: TypeScript, React 19, Node.js, GraphQL/Apollo, AWS, DynamoDB, PostgreSQL, Playwright, CDK

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