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Sr. Software Engineer, Fullstack - LATAM at Engine. . Location: Remote - Latin America. 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.. About the Role. . We're looking for a Senior Software Engineer to join our Admin & Travel Policy team — the group that powers the configuration layer B2B admins use to run their travel programs. You'll be driving our migration from a Ruby on Rails monolith (Nexus) to TypeScript microservices.. . This is high-ownership work. When your team changes a permission structure or updates a travel policy, it ripples across cards, flights, hotels, and bookings — meaning you'll collaborate constantly with other verticals and architect for system-wide impact. You'll also help close a real gap in A/B testing and event tracking on the team.. . The team is AI-forward. You'll use AI tooling in your daily workflow — this isn't optional, it's how we build.. . What You'll Do. . . Own frontend surfaces of admin-facing travel policy features end-to-end. . Drive migration of admin surfaces from the Ruby on Rails monolith to TypeScript microservices. . Supply policy and permission data to cars, flights, and hotels verticals — coordinating closely with those teams to ensure search performance and conversion are not impacted. . Introduce and improve A/B testing and event tracking on the team. . Collaborate cross-functionally with card, booking, flights, and hotels teams on permission and policy changes. . Help build AI-integrated admin interfaces that allow B2B admins to manage policies through Slack, text, and other AI-native channels. . Operate in a platform-adjacent capacity — your changes affect multiple stacks, and you'll navigate that complexity with care. . . What We're Looking For. . Required:. . . Strong TypeScript and/or React skills — frontend-heavy profiles are preferred. . Ruby on Rails experience — you'll work in Nexus throughout the migration. . Proven ability to work in cross-team or platform-adjacent codebases where your changes affect multiple systems. . AI-forward mindset — you actively use AI tooling in your coding workflow. . . Nice to Have:. . . AWS microservices experience (ECS, Lambda). . A/B testing or event tracking experience (Amplitude or equivalent). . NoSQL databases. . Java or Kotlin background. . . This is a contractor role for candidates based in Latin America. Applications for this role will be accepted through July 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.