Middle Backend Developer – Node.js

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United Tech

WebsiteLinkedInAll Job Openings

201 - 500 employees

United Tech is

📋 Description

• Develop and ship web billing integrations: payment providers, subscriptions, recurring billing, webhook handling (idempotency, retries, reconciliation) • Develop and ship marketing integrations: attribution platforms, server-side conversion/events APIs, analytics and CRM/ESP pipelines • Create technical designs for product epics and decompose them into actionable tasks • Participate in team processes: grooming, sprint planning, estimations • Run investigations and tech research (3rd-party API limits, provider selection, edge cases) • Address tech debt and improve reliability and observability of integrations • Take part in the full SDLC: design, dev, code review, testing, release, support

🎯 Requirements

• 3+ years of commercial backend development experience • 2.5+ years with Node.js (TypeScript) • Solid experience with relational and non-relational databases (PostgreSQL, MongoDB, Redis) • Experience with SOA/microservices: inter-service communication and dev process • Strong fundamentals in design principles and patterns (SOLID, event-driven) • Experience integrating third-party REST APIs: auth, rate limits, retries, webhooks, idempotency • Experience with async processing / message queues (BullMQ, RabbitMQ or Kafka) • Experience with a cloud provider (AWS / GCP) • Understanding of scaling and high-load systems • Daily use of AI coding assistants (Claude Code, Cursor, GitHub Copilot) for development, refactoring, tests, and documentation • Ability to write effective prompts and review/validate AI-generated code — quality and security ownership stays with you

🏖️ Benefits

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events • Up to 10 additional days off for public holidays • 100% medical insurance coverage • Sports and equipment reimbursement • Team building events, corporate gifts, and stylish merch • Financial and legal support • Maternity recovery support allowance • Position retention and support for those who join the Armed Forces of Ukraine • Participation in social initiatives supporting Ukraine • Work from our Kyiv hub or remotely with a flexible schedule • Modern equipment or depreciation of your own tools • Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche • Performance-oriented reviews and Individual Development Plans (IDPs) • Reimbursement for professional courses and English classes • Corporate library, book club, and knowledge-sharing events