Senior Software Engineer, Fullstack

About Engine

At Engine, we’re transforming business travel into something personalized, rewarding, and simple. For too long, managing travel and spend has been overwhelming and fragmented — we’re here to change that. We believe the future of travel should be seamless and powered by technology that delights customers at every step. That’s why we’re building a platform that brings together corporate travel, a powerful charge card, and modern spend management in one place.

To make this vision real, we’re looking for exceptional, mission-driven people to help redefine how businesses manage and experience travel.

More than 30,000 companies already rely on Engine to support over 1 million travelers and billions in annual bookings each year. Cash flow positive with rapid growth, we pair exclusive Engine-only rates, industry-leading rewards, and intelligent automation to help businesses save money while delivering world-class personalization and convenience.

Backed by Telescope Partners, Blackstone, and Permira, Engine has been recognized as one of the fastest-growing travel and fintech platforms in North America, with honors including the Deloitte Fast 500 and Built In’s Best Places to Work.

The Role

The Travel Management team owns the systems that make Engine work for enterprise customers — travel policies, travel controls, account hierarchy, roles and permissions, and granular policies across lodging, flights, and cars. This is where scale meets configurability, and where the platform earns the trust of the largest companies we serve.

We're looking for a Senior Software Engineer who can design distributed backend systems, make tough calls with incomplete information, and drive scalable, enterprise-grade solutions across a highly cross-functional environment. You'll be a heavy backend contributor, working on greenfield architecture and re-architecting existing components as we unlock the next stage of the platform.

What You'll Do

Re-architect account hierarchy — migrating from single-user-per-business assumptions to a scalable model that supports complex parent-child business relationships

Build out dynamic travel policies that scale across lodging, flights, and cars for enterprise customers

Evaluate what stays in the monolith vs. moves to microservices — and make the call

Collaborate closely with business stakeholders on negotiations and tough product calls

Partner with frontend engineers on the team to ship features end-to-end

Contribute to a future policies service where compiled languages (Go / Rust) are on the table

What We're Looking For

Required:

Strong backend engineering fundamentals in Node / TypeScript

Hands-on experience with a compiled language (Go or Rust)

Solid relational database experience (Postgres, MySQL) and distributed systems knowledge

AWS and serverless architecture experience (Lambda)

Conviction with rationale — you make decisions with incomplete information, own them, and move forward

Highly cross-functional — you'll interface directly with business partners on negotiations and product decisions

Comfortable operating in ambiguity and negotiating outcomes across engineering and business

Insist on high standards — for your code, your systems, and your team

Nice to Have:

Ruby on Rails experience (some of our services are on Rails)

React or frontend exposure

Prior experience building multi-tenant enterprise systems, permissions frameworks, or policy engines

This is a contractor role for candidates based in Latin America. Applications for this role will be accepted through September 30th, or until the role is filled. We encourage you to apply early, as we may begin reviewing applications before the deadline. The Engine Edge: Perks & Compensation We believe in rewarding great work with great benefits:

Compensation: Competitive base pay tied to role and experience, with opportunities for bonuses, commissions, and equity.

Benefits: Check out our full list at engine.com/culture .

Environments for Success: Different roles have different needs in terms of the environments that drive success which is why we have a hybrid-hub model. Whether you are in one of our amazing offices or fully remote, we’ll make sure you have what you need to succeed.

Perks and benefits may vary based on employment type, location, and more.

Ready to Build the Future of Work Travel? Join us on our mission to transform how work travel works—for businesses, for travelers, and for the industry. Apply now and let’s make travel simpler, smarter, and more enjoyable—together.