About Engine

Engine is the all-in-one travel and spend management platform trusted by 38K+ businesses and groups and 1.2M+ travelers. We're the retailer and the rails of business travel, the fastest-growing company in travel tech, built on a decade of proprietary technology, supply, and pricing no one else can replicate. Other travel and AI companies run on our infrastructure to book real trips, hold rates, and move payments, without building any of it themselves. We built it, AI-forward at every layer, from how travelers book to how the rails run.

That work has earned recognition as one of Fast Company's Best Workplaces for Innovators (2025), TravelTech's Reservation Platform of the Year (2026), and one of Built In's Best Places to Work (2020–2026).

We're looking for bold, ambitious people to help redefine how businesses manage and experience travel. Working here, you can expect exponential growth, an ambitious pace, full ownership, and high-caliber colleagues who push you to do the best work of your career. Every hire raises the bar.

Come outpace the ordinary and build the future of travel with us.

We're looking for a Senior Software Engineer to join the FinTech vertical. The Accounting integrations team is responsible for the last touchpoint in the Engine user journey. Every line of credit, every booking, every direct bill needs to land cleanly in our customers' ERP systems. Right now that gap costs us deals. You'll close it. From day one, help design the integrations layer, and own it as the team scales. QuickBooks is already live. Netsuite is in progress. Sage, Xero, Oracle Fusion, and eventually expense platforms like Expensify and Concur are next.

This is a team where 95% of code is AI-generated, PR reviews are being phased out, and the FinTech group leads the entire company in AI development. If you want high ownership, real external-facing technical work, and a team that takes AI seriously — this is it.

What You'll Do

• Design and build integrations between Engine's billing system and major ERP platforms — QuickBooks, Netsuite, Sage, Xero, Oracle Fusion
• Work directly with external vendors: navigate their APIs, attend architectural onboarding sessions, and get your integration designs approved
• Own the full integration lifecycle — from vendor demos through to production and ongoing support
• Lay the architecture for future expense management integrations (Expensify, Concur, and others)
• Collaborate with the billing team and internal accounting stakeholders to ensure the line-of-credit-to-ERP flow is accurate and reliable
• Use AI tools (Claude and/or Cursor) as your primary development environment — this team generates ~95% of code with AI

What You'll Do

• Drive the design and implementation of a greenfield services, replacing legacy code with modern microservices, strong test coverage, and production-grade observability
• Enable other product teams by building and maintaining integrations they depend on
• Collaborate closely with other teams to translate accounting requirements into engineering solutions
• Use AI tools (Claude and/or Cursor) as your primary development environment

What We're Looking For

Required:

• Strong system design skills — you can walk through architectural decisions you've made, explain tradeoffs, and think at the infrastructure level
• Excellent communication — you can explain technical problems clearly to non-technical stakeholders like accountants and business ops teams
• AI fluency — you're comfortable using Claude, Cursor, or similar tools as your main coding interface; you don't just use them occasionally
• Proven delivery — you've shipped complex systems, not just features; you can speak to the weight and scope of what you've built
• Java or Kotlin experience (preferred by the team)

Nice to Have:

• Experience in FinTech, payments, fraud, or billing systems — adjacent domains like fraud prevention or payment logistics count
• Experience building ERP or accounting integrations (QuickBooks, Netsuite, Sage, Xero, Oracle Fusion, or similar)
• Terraform, Datadog, or Splunk experience

This is a contractor role for candidates based in Latin America. Applications for this role will be accepted through September 30th 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.