Backend Engineer (Node.js)

SKELARKyiv, Kyiv, Ukraine1w ago

In Office Mid EMEA Fintech Payments Cloud Computing Backend Engineer E-commerce Node.js Terraform Front-end GCP

Upload My Resume

Drop here or click to browse · PDF, DOCX, TXT

Apply in One Click

Requirements

— 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 you can expect

Responsibilities

— Act as a cross-functional partner: Work directly with Payment, Marketing, and Ops teams to translate business goals into technical solutions that drive revenue;
— Own the Payments Domain: Design and build resilient payment infrastructure (Node.js/NestJS), ensuring transactional integrity, smart retries, and accurate financial data synchronization;
— Infrastructure & DevOps: Take full ownership of your services' lifecycle — from architectural design to deployment and monitoring in our cloud environment (GCP, Kubernetes, Terraform); — Data & Analytics: Build reliable data pipelines (BigQuery) to empower analytics and ensure every cent is accounted for;
— Collaborate, don't isolate: While you lead the Payments zone, you’ll work closely with the wider Engineering Chapter, sharing knowledge and building the platform together;
— (Nice to have) Contribute to simple internal tools or dashboards (React/Next.js) to unblock Ops teams when needed.
What matters to us
— 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: You are comfortable setting up CI/CD, configuring Docker, and managing resources in Kubernetes/GCP;
— Revenue-driven mindset: You understand that "code quality" means "business reliability". You care about metrics like Payment Success Rate as much as CPU Load;
— Proactive communication: You don't wait for tasks — you identify problems and propose technical solutions to business challenges;
— You use AI in your workflow to move faster and think broader.

Benefits

— Founding Engineer Impact: You will be the architect of a critical business zone with high autonomy, but surrounded by a strong engineering ecosystem;
— No Legacy Bureaucracy: We are young, fast, and you will set the standards for processes and code quality;
— Strong Community: Regular knowledge-sharing sessions with engineers across Skelar (10+ successful businesses);
— Office in Warsaw or Kyiv with generator/Starlink, plus perks (lunches, gym, health insurance);
— A meaningful mission - helping people live better lives, every day.
Leaply is backed by SKELAR, a venture builder with 10+ successful B2C businesses in its portfolio. SKELAR provides world-class payment infrastructure for our model, plus financial and legal support across target regions, and runs internal clubs focused on professional growth in marketing, engineering, and payments - there’s always someone to learn from or lean on.
Beyond business, SKELAR supports the SKELAR Foundation, a charitable initiative created by employees to support the Ukrainian Armed Forces - funding large projects that bring us closer to victory.