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SKELAR Logo SKELAR · IT - Software Development

Backend Engineer (Node.js)

Ukraine; Poland, Kyiv · Job Posted February 20, 2026
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Job Description

We are hiring a Backend Engineer (Node.js) who will act as a founding engineer for our Payments & Operations zone. You will build the financial backbone of the company that handles 5x growth, ensuring scalability, reliability, and automation across our revenue streams.

Job Responsibility

  • Act as a cross-functional partner: Work directly with Payment, Marketing, and Ops teams to translate business goals into technical solutions
  • Own the Payments Domain: Design and build resilient payment infrastructure (Node.js/NestJS)
  • Infrastructure & DevOps: Take full ownership of your services' lifecycle — from architectural design to deployment and monitoring in cloud environment (GCP, Kubernetes, Terraform)
  • Data & Analytics: Build reliable data pipelines (BigQuery) to empower analytics
  • Collaborate, don't isolate: work closely with the wider Engineering Chapter
  • (Nice to have) Contribute to simple internal tools or dashboards (React/Next.js) to unblock Ops teams

Requirements

  • 3+ years of commercial experience building scalable web backends
  • Expert with Node.js (NestJS preferred) and TypeScript
  • Strong experience with PostgreSQL (transactions, isolation levels) and asynchronous architectures (Queues, Event-driven)
  • Hands-on DevOps experience: comfortable setting up CI/CD, configuring Docker, and managing resources in Kubernetes/GCP
  • Revenue-driven mindset
  • Proactive communication
  • Use AI in your workflow

Nice to have

  • Experience in FinTech, E-commerce, or High-load projects
  • Deep understanding of Payment Processing (Idempotency, Reconciliation, Fraud prevention)
  • Experience with Data Engineering (BigQuery, ETL pipelines)
  • Familiarity with Infrastructure as Code (Terraform)
  • Willingness to occasionally touch Front-end (React) to build internal tools

What we offer

  • Competitive compensation
  • Founding Engineer Impact with high autonomy
  • No Legacy Bureaucracy
  • Strong Community: Regular knowledge-sharing sessions
  • Office in Warsaw or Kyiv with generator/Starlink, plus perks (lunches, gym, health insurance)
  • A meaningful mission - helping people live better lives
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