Senior Backend Engineer - Lodging and Cars
Backend Engineer · Senior · Full Time · Remote
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Role
What you'll do.
Join Hopper's Lodging and Cars Supply team as a Senior Backend Engineer, where you'll architect and scale mission-critical microservices handling billions of dollars in global hotel and car rental transactions. This role offers hands-on technical leadership in a complex distributed systems environment, requiring expertise in Scala/JVM languages and microservices integration to build resilient, high-throughput services that power Hopper's platform serving hundreds of millions of travelers. You'll own complete development lifecycles while collaborating across cross-functional teams to deliver reliable booking fulfillment and integrate new lodging and car rental partners into Hopper's innovative travel fintech ecosystem.
Responsibilities
- End-to-End Technical Integrations: Execute comprehensive technical integrations with external lodging, car rental, and Global Distribution System (GDS) partners, navigating complex communication protocols, distributed data schemas, and ensuring seamless data flow across heterogeneous systems in a high-transaction environment.
- Scalable Backend Development: Write clean, performant, and maintainable code in Scala or other JVM languages (Java, Kotlin) to build, maintain, and evolve mission-critical lodging and car rental services that uphold rigorous engineering standards and support high-volume transaction processing.
- Distributed Systems Troubleshooting: Explore and troubleshoot complex, existing codebases to diagnose and resolve production issues within a distributed microservices environment, demonstrating strong system thinking and infrastructure comprehension to minimize downtime and maintain service reliability.
- Requirements Decomposition and Planning: Collaborate with Product Managers and Operations teams to analyze business requirements, decompose them into granular technical tasks, estimate delivery timelines, and communicate technical constraints and opportunities to non-technical stakeholders.
- Full Development Lifecycle Ownership: Take complete ownership of feature development from technical implementation through comprehensive testing, code review, and production deployment, ensuring quality assurance and smooth rollouts of new capabilities to the global platform.
- High-Performance Service Architecture: Contribute to the design of resilient, low-latency microservices that maintain optimal performance under high load, implementing monitoring, caching strategies, and optimization techniques to ensure seamless user experiences during peak transaction volumes.
- Code Quality and Performance Review: Participate in thorough code reviews with peers, identify optimization opportunities for system scalability and performance, mentor junior engineers on best practices, and drive continuous improvements across the Lodging and Cars technical stack.
Qualifications
What we look for.
Technical
Scala and JVM Languages Proficiency
Strong, production-level expertise in Scala with ability to write high-performance, maintainable code; complementary proficiency in Java or Kotlin for interoperability and architectural decisions within JVM ecosystems.
Microservices Architecture Experience
Proven track record of designing, implementing, testing, and deploying features across distributed microservices architectures, understanding service boundaries, API contracts, and inter-service communication patterns at scale.
Distributed Systems Fundamentals
Practical experience with distributed systems concepts including consistency models, eventual consistency, service communication protocols (gRPC, REST), asynchronous messaging (Pub/Sub), and handling of network failures and latency.
API Integration and Protocol Expertise
Hands-on experience integrating with external APIs and services, implementing REST endpoints, gRPC services, and Pub/Sub message-based communication patterns; familiarity with hotel and car rental booking protocols is advantageous.
Database and Data Management
Strong understanding of relational and NoSQL databases, data modeling for high-throughput systems, query optimization, and transaction management for booking and financial data consistency.
Production Systems Debugging
Advanced debugging and troubleshooting capabilities in production environments, proficiency with logging, monitoring, and observability tools to diagnose and resolve complex issues in distributed systems under time pressure.
Education
Bachelor's Degree in Computer Science or Related Field
Formal education in Computer Science, Software Engineering, or equivalent technical discipline; demonstrates foundational knowledge in algorithms, data structures, and systems design principles.
Continuing Technical Education
Commitment to staying current with distributed systems patterns, microservices best practices, and emerging backend technologies through formal coursework, certifications, or self-directed learning.
Experience
5+ Years Backend Engineering Experience
Minimum five years of professional backend software engineering experience, with at least three years focused on building or maintaining production microservices at scale in high-transaction environments.
Senior-Level Technical Execution
Demonstrated ability to independently execute complex technical initiatives end-to-end, require minimal guidance, and make sound architectural decisions with business impact awareness.
Cross-Functional Collaboration
Successful experience working across product, operations, and data teams in fast-paced environments, translating business needs into technical requirements and communicating complex technical concepts to non-engineers.
Travel or Commerce Technology Background (Preferred)
Demonstrated interest or experience in travel technology, e-commerce platforms, booking systems, or fintech; understanding of travel industry dynamics, OTA architecture, or GDS systems is advantageous but not required.
Skills
Required
Scala Programming
Expert-level Scala development with deep knowledge of functional programming paradigms, type systems, and JVM internals to build scalable, maintainable microservices.
Microservices Architecture Design
Proficiency in designing and implementing microservices patterns including service decomposition, API design, asynchronous communication, and managing distributed data consistency.
gRPC and REST API Development
Hands-on experience building and integrating gRPC and REST services, including protocol buffer design, service definition, and efficient request-response handling at scale.
Distributed Systems Concepts
Deep understanding of consistency models, CAP theorem, eventual consistency, distributed transactions, and failure handling in networked systems.
Pub/Sub Messaging Systems
Practical experience with publish-subscribe architectures and message brokers for asynchronous event-driven communication in microservices environments.
SQL and Database Design
Strong SQL skills and database design expertise for transactional systems, including normalization, indexing strategies, and query optimization for booking and inventory systems.
System Troubleshooting and Debugging
Advanced ability to diagnose production issues through log analysis, monitoring dashboards, profiling tools, and distributed tracing in complex microservices environments.
Code Quality and Testing
Commitment to writing testable, maintainable code with strong unit testing, integration testing, and test automation practices; familiarity with CI/CD pipelines.
Preferred
Java and Kotlin
Nice to haveComplementary proficiency in Java or Kotlin to support ecosystem compatibility, code maintenance, and architectural flexibility within JVM-based technology stacks.
GDS Integration Experience
Nice to havePrior experience integrating with Global Distribution Systems (GDS) protocols, hotel booking APIs, or car rental systems demonstrates domain familiarity with travel commerce.
Observability and Monitoring
Nice to haveHands-on experience with observability platforms (Datadog, New Relic, Prometheus), distributed tracing (Jaeger, Zipkin), and building comprehensive monitoring solutions for production systems.
Container Orchestration
Nice to haveWorking knowledge of Docker containerization and Kubernetes orchestration for deploying and managing microservices in production cloud environments.
Cloud Platform Proficiency
Nice to haveExperience with major cloud platforms (AWS, Google Cloud, Azure) for deploying, scaling, and managing backend services at enterprise scale.
Travel or FinTech Industry Knowledge
Nice to haveBackground in travel technology, online travel agencies (OTAs), financial services, or other high-transaction commerce platforms demonstrates industry context and business acumen.
Performance Optimization
Nice to haveTrack record of identifying and resolving performance bottlenecks, optimizing query execution, implementing caching strategies, and managing high-throughput systems.
Tech stack
Languages
Frameworks
Databases
Tools
Other
Compensation
Pay and benefits.
Base·USD 160,000 – 220,000
Equity·Stock options
Benefits
Comprehensive Health Insurance
100% premium coverage for employees through Vitality Health group insurance plan, including medical, dental, and vision benefits with no out-of-pocket costs for employee coverage.
Pre-IPO Equity Package
Competitive stock options and equity upside participation as part of a well-funded startup with significant growth potential and pre-IPO valuation opportunity.
Retirement Planning
Automatic pension contributions through Smart Pension upon hire, supporting long-term financial security and retirement savings with employer-matched contributions.
Above-Market Parental Leave
Exceptionally generous parental leave policy significantly exceeding industry standards, supporting work-life balance for employees with caregiving responsibilities.
Flexible Workspace Options
On-demand access to professional co-working spaces through FlexDesk partnership combined with work-from-home stipends to support remote-first working arrangements.
Travel Benefits Stipend
Carrot Cash travel stipend providing financial support for personal travel, aligned with Hopper's mission to empower travelers and company culture.
Unlimited Paid Time Off
Unlimited PTO policy enabling engineers to manage personal well-being, burnout prevention, and flexible scheduling in a trust-based work environment.
Entrepreneurial Culture
Dynamic startup environment that values risk-taking, innovation, and pushing technical boundaries as everyday business practice, fostering personal growth and impact.
Executive Communication Access
Open, direct communication channels with management and company leadership, enabling transparent decision-making and direct input into strategic technical direction.
High-Impact Team Structure
Small, dynamic, cross-functional teams enabling individual engineers to see immediate impact of their contributions at scale across Hopper's global platform.
Full posting
Original listing.
About the Role
Join the Lodging and Cars Supply team at the heart of our lodging and cars business unit, where you will be instrumental in scaling a global hotel and cars ecosystem that handles high-volume, real-time transactions.
As a senior-level individual contributor, you will navigate a complex microservices environment to deliver reliable booking fulfillment, integrate new lodging and cars partners into our core stack, and optimize system monitoring. This role is designed for a self-directed engineer who excels at system exploration and immediate technical execution within an established, high-growth travel environment.
What would your day-to-day look like
Execute end-to-end technical integrations with external lodgings, cars and GDS partners while navigating complex communication protocols and distributed data schemas.
Write clean, performant code in Scala or other JVM languages to maintain, evolve, and uphold rigorous engineering standards for mission-critical lodging services.
Explore and troubleshoot existing complex codebases to deep-dive into infrastructure and resolve production issues in a distributed system environment.
Partner with Product Managers and Operations to decompose business requirements into technical tasks and estimate delivery timelines.
Take full ownership of the development lifecycle for new product features, from initial technical implementation and testing to production deployment.
Contribute to the design of highly resilient, low-latency services to ensure a seamless booking experience for customers under high load.
Participate in thorough code reviews and identify opportunities to optimize scalability, performance, and system health.
An ideal candidate has
Strong proficiency in Scala or other JVM languages, such as Java or Kotlin, with a focus on building scalable, high-throughput services.
A proven track record of owning the technical implementation, testing, and deployment of features within a microservices architecture.
Practical experience with distributed systems and service communication methods including gRPC, Pub/Sub, and REST.
The ability to onboard quickly and handle technical ambiguity by independently exploring and executing technical plans within existing infrastructure.
Excellent communication skills and a "bias for action" to effectively collaborate with cross-functional squads in a remote-first environment.
A professional curiosity for the travel tech industry and a commercial mindset focused on delivering reliable booking fulfillment.
Perks and benefits of working with us:
Well-funded and proven startup with large ambitions, competitive salary, upsides of pre-IPO equity packages.
Hopper covers 100% of the premiums for the employee for a group insurance plan through Vitality Health.
Automatic contributions when you start with Hopper through Smart Pension.
Please ask us about our very generous parental leave, much above industry standards!.
Access to co-working space on demand through FlexDesk AND Work-from-home stipend.
Carrot Cash travel stipend.
Unlimited PTO.
Entrepreneurial culture where pushing limits and taking risks is everyday business.
Open communication with management and company leadership.
Small, dynamic teams = massive impact.
More about Hopper
At Hopper, we are on a mission to become the leading travel platform globally – powering Hopper’s mobile app, website and our B2B business, HTS (Hopper Technology Solutions). By leveraging massive amounts of data and advanced machine learning algorithms, Hopper combines its world-class travel agency offering with proprietary fintech products to bring transparency, flexibility and savings to travelers globally. We have developed several unique fintech solutions that address everything from pricing volatility to trip disruptions – helping people travel better and save more on their trips.
The Hopper platform serves hundreds of millions of travelers globally and continues to capture market share around the world. he Hopper app has been downloaded over 120 million times and has become largely popular among younger travelers – with 70% of its users being Gen Z and millennials.
While everyone knows us as the Gen Z and Millennial travel app, Hopper has evolved to become much more than that. In recent years, we’ve grown into a travel fintech provider, commerce platform, and global travel agency that powers some of the world’s largest brands.
Through HTS, our B2B division, the company supercharges its partners’ direct channels by integrating our fintech products on their sites or powering end-to-end travel portals. Today, our partners include leading travel brands like Capital One, Nubank, Air Canada, and many more.
Here are just a few stats that demonstrate the company’s recent growth:
Billions of dollars worth of travel and travel fintech are sold through Hopper and HTS’ channels every year.
Our fintech products – including Cancel for Any Reason and Flight Disruption Assistance – have exceptionally strong CSAT because the terms are always clear, and customers receive instant, no-questions-asked resolutions.
Almost 30% of our app customers purchase at least one fintech product when making a booking; and consumers are 1.6x more likely to repurchase if they add fintech to their booking vs if they booked just travel.
Given the success of its fintech products, Hopper launched a B2B initiative, HTS (Hopper Technology Solutions), which represents more than 75% of the business.
Through HTS, any travel provider (airlines, hotels, banks, travel agencies, etc.) can integrate and seamlessly distribute Hopper’s fintech or travel inventory on their direct channels. As its first HTS partnership, the company partnered with Capital One to co-develop Capital One Travel, a new travel portal designed specifically for cardholders. Other HTS partners include Air Canada, Uber, CommBank, Nubank, Flair Airlines and many more.
Hopper has been named the #1 most innovative company in travel by Fast Company Hopper has been downloaded over 120 million times and continues to have millions of new installs each month. Hopper is now the #3 largest online travel agencies in North America and 70% of our app customers are Gen-Z and millennials travelers.
Hopper has raised over $750 million USD of private capital and is backed by some of the largest institutional investors and banks in the world. HTS is primed to continue its growth as the leading travel ecommerce provider in a $1 trillion online shopping category. The Hopper app and website will also continue to be the preferred travel provider for Gen Z and Millennials..
Come take off with us!
At Hopper, we leverage AI-driven tools to assist our team in efficiently reviewing applications. These tools help us assess qualifications fairly and objectively. By submitting your application, you acknowledge the use of these automated screening technologies.
#LI-REMOTE
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