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Kilo™

Senior Back End Engineer (Node.js)

Kilo™
Lithuania · Full-time · Mid-Senior

About The Team

Ratepunk is a fast-scaling travel tech platform focused on helping users find better flight and hotel deals through intelligent price comparison and real-time alerts. We operate in a data-driven, product-led environment where engineering plays a central role in shaping a reliable, scalable, and secure platform that makes travel more transparent and affordable worldwide.

As a senior engineer, you won’t just build features — you’ll help shape the technical direction of the platform and influence engineering standards across the organization.

Get ready to

  • Lead the design and evolution of scalable, secure, and highly reliable backend systems
  • Architect and build high-quality services using Node.js and TypeScript in production environments
  • Own complex domain logic, third-party integrations, and high-performance data workflows
  • Drive architectural decisions and contribute to long-term technical strategy
  • Design robust, maintainable APIs and collaborate closely with frontend, product, and data teams
  • Improve system performance, security posture, observability, and infrastructure reliability
  • Proactively identify technical debt and lead initiatives to address it
  • Mentor engineers through code reviews, knowledge sharing, and technical guidance
  • Elevate engineering standards, development processes, and best practices across the team

We expect you to

  • Strong backend engineering expertise with deep understanding of clean architecture, system design, and scalable patterns
  • Proven experience building and maintaining production systems with Node.js and TypeScript
  • Solid hands-on experience with PostgreSQL and Redis, including data modeling, indexing strategies, and performance optimization
  • Ability to design and reason about complex business domains and distributed systems
  • Strong testing mindset (unit, integration, and system-level testing) and commitment to code quality
  • Experience owning services end-to-end — from design and implementation to deployment, monitoring, and optimization
  • Comfortable working autonomously while influencing cross-team technical decisions
  • Product mindset and pragmatic decision-making ability
  • Curiosity and a continuous improvement attitude — you challenge assumptions and refine solutions rather than just implement requirements

Salary

Gross salary range is 5000 - 7000 EUR/month.

Location

Vilnius, Lithuania: 4 days onsite, 1 flexible day remote. Meanwhile, in Kaunas: onsite, hybrid, or remote options are available depending on the role.

Speaking of perks:

Boost your daily life

Every breakthrough needs a spark and our daily setup reflects that. Pet-friendly office, fresh breakfasts, hot lunches, drawers and fridges stocked with snacks and food – for a quick bite or even a team-cooked meal together. Rooftop and cellar events keep things lively.

Drive global impact

This is where ambition scales. Build impact across 30+ brands worldwide. Launch bold projects. Even step in as a co-founder – we reward those who push further.

  • additional conditions apply based on your residence location.

Key Skills

Ranked by relevance

typescript postgresql redis spark
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Posted
Feb 21, 2026
Type
Full-time
Level
Mid-Senior
Location
Vilnius
Company
Kilo™

Industries

Business Consulting Services

Categories

Engineering Information Technology

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