E

Senior Backend Software Engineer (Pricing & Identity Management Systems)

eNGINE • United State
Full Remote
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AI Summary

Design and implement scalable, high-performance distributed systems for Engine’s AI-native travel platform, focusing on real-time pricing engines, auction-based models, and identity/authorization infrastructure. Collaborate cross-functionally to drive customer-facing innovations while ensuring security, performance, and domain-driven architecture. Requires 5+ years of experience in distributed systems, API development, and modern backend technologies.

Key Highlights
Lead design and implementation of real-time pricing engines, ML-driven models, and identity/authorization systems for Engine’s travel marketplace
Collaborate with Product and Data Science teams to deliver scalable, high-impact solutions for lodging, car rentals, and flights
Ownership of system performance, security, and customer-facing experiences with measurable impact on revenue and conversion
Key Responsibilities
Design and implement scalable, high-performance distributed systems for real-time pricing engines and auction-based models
Develop and maintain public-facing APIs with versioning, deprecation strategies, and consumption-based rate limiting
Collaborate with cross-functional teams to integrate ML models, customer segmentation, and identity/authorization systems
Lead initiatives to improve system efficiency, security, and customer satisfaction for Engine’s travel marketplace

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Technical Skills Required
Distributed Systems API Development Domain-Driven Design
Benefits & Perks
Competitive base salary ($135,200–$187,000 USD annually)
Equity for all employees
Hybrid-hub remote work model with flexible office/remote options

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Nice to Have
Node.js
TypeScript
Kotlin
AWS
Machine Learning
Auth0
Enterprise identity integration

Job Description

Engine is the AI-native platform for intelligent travel. For a decade, Engine has built the proprietary technology and supply behind modern business travel, serving over 40,000 customers and nearly 2 million travelers, along with leading travel and AI companies that build on Engine's infrastructure. One system powers business travel, group travel, human agents, and AI agents.That work has earned Engine recognition as TravelTech's Reservation Platform of the Year (2026), a spot on Inc.'s Power Partners list (2026), and one of Built In's Best Places to Work (2020–2026).
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Job Overview
Posted Oct 25, 2026
Employment Full-time
Experience Not Applicable
Location United State
Category Programming
Company eNGINE
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