Senior Backend Engineer - Lodging and Cars
Backend Engineer · Senior · Full Time · Remote
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Role
What you'll do.
Senior Backend Engineer at Hopper's Lodging and Cars Supply team, responsible for scaling a global high-throughput microservices ecosystem handling real-time hotel and rental car transactions. This role requires expertise in Scala/JVM languages, distributed systems architecture, and third-party API integration to deliver reliable booking fulfillment for hundreds of millions of travelers. The ideal candidate will navigate complex technical challenges independently, optimize system performance under high load, and collaborate cross-functionally in a remote-first environment.
Responsibilities
- End-to-End Technical Integration: Execute comprehensive technical integrations with external lodging, cars, and Global Distribution System (GDS) partners while managing complex communication protocols, data schema transformations, and real-time synchronization across distributed systems.
- Mission-Critical Service Development: Write clean, performant, and maintainable code in Scala or other JVM languages to develop, maintain, and evolve mission-critical lodging and cars services that handle high-volume transactions while maintaining rigorous engineering standards and system reliability.
- Distributed Systems Troubleshooting: Investigate and troubleshoot complex codebases within distributed microservices environments to identify root causes of production issues, implement diagnostic tools, and resolve infrastructure challenges that impact system performance and availability.
- Cross-Functional Collaboration: Partner with Product Managers and Operations teams to decompose business requirements into technical specifications, estimate delivery timelines, validate assumptions, and ensure technical solutions align with business objectives and user needs.
- Feature Ownership and Deployment: Take full ownership of the complete development lifecycle for new features including technical design, implementation, comprehensive testing, performance validation, and production deployment with monitoring and rollback capabilities.
- High-Performance Service Architecture: Contribute to the design and implementation of highly resilient, low-latency services that handle peak booking loads, maintain sub-second response times, and ensure seamless user experiences during traffic spikes and system stress conditions.
- Code Review and Performance Optimization: Participate in thorough code reviews to identify optimization opportunities, enhance system scalability, improve performance characteristics, and maintain code quality standards while mentoring junior engineers on best practices.
Qualifications
What we look for.
Technical
Scala or JVM Languages Proficiency
Advanced expertise in Scala, Java, or Kotlin with demonstrated ability to build scalable, high-throughput services, write performant code, and leverage JVM ecosystem tools and libraries effectively.
Microservices Architecture
Proven track record of designing, implementing, testing, and deploying features within production microservices architectures, managing service boundaries, and handling distributed transaction patterns.
Distributed Systems and Communication Protocols
Practical experience with distributed systems concepts including gRPC for efficient inter-service communication, Pub/Sub messaging systems for event-driven architectures, and REST APIs for synchronous communication patterns.
Production Systems and Infrastructure
Ability to independently explore existing infrastructure, understand complex system dependencies, configure monitoring and observability solutions, and execute technical plans with minimal guidance.
System Integration and API Development
Experience integrating with third-party APIs, handling various data formats and protocols, managing error handling and retry logic, and maintaining backward compatibility during system evolution.
Education
Computer Science or Related Field
Bachelor's degree in Computer Science, Software Engineering, or equivalent professional experience demonstrating mastery of computer science fundamentals and software architecture principles.
Experience
Senior-Level Software Engineering
Minimum 5-7 years of professional software engineering experience with at least 2-3 years at senior level demonstrating technical leadership, independent ownership, and ability to navigate ambiguity in complex systems.
Backend Service Development
Substantial experience developing and maintaining backend services in production environments, handling high-throughput transaction processing, and optimizing for reliability, performance, and scalability.
Travel or E-Commerce Tech Stack
Professional familiarity with travel industry technology, booking systems, or high-transaction e-commerce platforms is beneficial but not required for candidates with strong general backend expertise.
Skills
Required
Scala Programming
Strong proficiency in Scala including functional programming paradigms, type systems, and leveraging Scala's strengths in building concurrent, scalable systems.
Microservices Design Patterns
Deep understanding of microservices architecture principles including service decomposition, API design, failure handling, and managing distributed system complexity.
gRPC and Protocol Buffers
Hands-on experience with gRPC framework and Protocol Buffers for efficient, type-safe service-to-service communication at scale.
Pub/Sub Messaging Systems
Practical experience with event-driven messaging systems like Kafka, RabbitMQ, or cloud-native message brokers for building asynchronous, decoupled architectures.
REST API Design and Implementation
Ability to design and implement well-structured REST APIs following best practices, including versioning strategies, error handling, and backward compatibility.
Production Troubleshooting
Demonstrated ability to debug complex distributed systems issues using logs, metrics, traces, and other observability tools to identify and resolve production incidents rapidly.
Code Review and Technical Communication
Excellence in code review practices, technical documentation, and clear communication with cross-functional teams including non-technical stakeholders.
Rapid Onboarding and Exploration
Proven ability to independently understand unfamiliar codebases, technical infrastructure, and system architecture to execute technical plans with minimal supervision.
Preferred
Java and Kotlin Experience
Nice to haveAdditional proficiency in Java or Kotlin complements Scala skills and provides flexibility within the broader JVM ecosystem for various service requirements.
Travel Tech or GDS Integration
Nice to haveProfessional experience with Global Distribution Systems (GDS), hotel booking systems, airline reservation systems, or travel commerce platforms adds valuable domain knowledge.
Cloud Infrastructure and DevOps
Nice to haveFamiliarity with cloud platforms (AWS, GCP, Azure), containerization with Docker, orchestration with Kubernetes, and infrastructure-as-code practices.
Observability and Monitoring
Nice to haveExperience designing and implementing comprehensive monitoring solutions, distributed tracing, metrics collection, and incident response automation.
Database Optimization
Nice to haveKnowledge of database performance tuning, query optimization, caching strategies, and understanding trade-offs between consistency and availability in distributed systems.
System Performance Optimization
Nice to haveTrack record of profiling applications, identifying performance bottlenecks, optimizing algorithms and database queries, and improving system latency.
Mentorship and Technical Leadership
Nice to haveExperience mentoring junior engineers, designing system architectures, and driving technical decisions across teams while maintaining strong collaborative relationships.
Tech stack
Languages
Frameworks
Databases
Tools
Other
Compensation
Pay and benefits.
Base·USD 130,000 – 180,000
Equity·Stock options
Benefits
Pre-IPO Equity Packages
Competitive equity compensation providing meaningful upside participation in Hopper's growth trajectory as a well-funded, pre-IPO startup with significant institutional backing and $750+ million in private capital.
Carrot Cash Travel Stipend
Exclusive travel benefits allowing engineers to experience Hopper's products firsthand while enjoying special discounts and perks for booking flights, hotels, and car rentals.
Flexdesk All Access Pass
Access to global network of flexible workspaces, coworking facilities, and hot-desking options to maintain productivity and collaboration while working remotely across different locations.
Work-from-Home Stipend
Financial support for setting up and maintaining a productive home office environment including equipment, internet, furniture, and other home office essentials.
Entrepreneurial Culture
Dynamic, risk-taking company culture that encourages pushing technical boundaries, experimenting with innovative solutions, and taking calculated risks to drive product advancement.
Open Leadership Communication
Direct access to management and company leadership enabling transparent communication, rapid decision-making, and alignment on strategic technical priorities.
High-Impact Team Environment
Small, dynamic engineering teams within Hopper's $1 trillion online shopping category, ensuring that individual contributions directly influence product direction and company growth.
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 and the upsides of pre-IPO equity packages.
Carrot Cash travel stipend.
Flexdesk All Access Pass & Work-from-home stipend.
Entrepreneurial culture where pushing limits and taking risks is everyday business.
Open communication with management and company leadership.
Small, dynamic teams = massive impact.
🇺🇾 Contractor Disclosure: Uruguay 🇺🇾
This position is offered as an Independent Contractor role (Prestación de Servicios) based in Uruguay, supporting the Hopper Cloud / HTS (Hopper Technology Solutions) business unit. The successful candidate will engage with Hopper as an independent service provider and will not be considered a legal employee. Consequently, the contractor maintains full responsibility for their own equipment, workspace, and compliance with local Uruguayan tax and social security obligations (DGI/BPS). This engagement is governed by a commercial service agreement and does not carry eligibility for company-sponsored benefits, statutory bonuses (Aguinaldo), or paid leave typical of a standard employment contract.
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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