About the Position

We are looking for a Staff Software Engineer (Booking Integrations) to join our fast-scaling travel startup, Kilo. This role is ideal for a builder who is excited to design, build, and own integrations with third-party booking systems, and help shape the product as the company scales.

About the Team

Breakneck Studio is an incubator and accelerator that scales digital and e-commerce brands at high velocity. This is where you get hands-on, zero-to-scale experience you won't find in a regular job.

Responsibilities

Design, build, and own integrations with third-party booking systems.
Architect the webhook ingestion and worker queue infrastructure.
Design database schemas in Supabase (PostgreSQL).
Build sandbox and testing environments.
Load test and harden services.
Ensure secure handling of credentials and traveler data.
Help evolve our TypeScript, Supabase, and TanStack MVP into a scalable platform.
Work directly with the founder and early team to decide which integrations matter most.
Set the engineering standards, patterns, and practices for the team.

Requirements

Strong software engineering fundamentals.
Deep experience in Authentication & Identity and Backend Software Engineering (PostgreSQL, PHP/Laravel, Node.js/TypeScript).
Expert-level understanding of API authentication across many integration styles.
Proven experience designing secure, scalable webhook systems.
Hands-on experience building asynchronous job processing.
Experience integrating with a wide variety of third-party systems.
Secure handling of credentials and secrets at scale.
Strong TypeScript skills.
Solid grasp of engineering best practices, automation, and observability.
Comfortable in an agile, collaborative environment.
Experience leading technical initiatives and providing technical leadership.

We Offer

Competitive gross salary range of 6000-8000 EUR/month + stock options (ESOP).
Health insurance (after probation), on-site physiotherapist, office gym, and fitness classes.
7 extra days off, 3 for weddings, hybrid work, and the freedom to work 2 months from anywhere in the world.
Pet-friendly office, fresh breakfasts, hot lunches, and stocked drawers and fridges.
Rooftop and cellar events, 10 social clubs, and a public transport card for Vilnius.
€1000 yearly budget for personal or team growth.
€1500 for every successful referral.

Location

Vilnius, Lithuania (Hybrid model: 4 days onsite, 1 day remote). Other locations include Klaipėda, Lithuania, and Riga, Latvia.

About the Company

Kilo is a generational traveltech company looking to disrupt the sleepy industry. We are two-sided: travelers get a consumer product that helps them plan and book trips, and advisors get a SaaS-style subscription with certification and qualified leads in the offer.

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Staff Software Engineer (Booking Integrations)

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