Staff Engineer

About OnArrival Travel:OnArrival is redefining the travel tech industry by building the world’s most advanced full-stack travel platform. We provide seamless, intelligent travel infrastructure, powering everything from flights and hotels to baggage insurance. Unlike traditional aggregators, OnArrival deeply integrates with suppliers, offering a next-generation API and SDK solution that simplifies travel technology for fintechs, OTAs, and enterprises. Role Overview:We are looking for aStaff Backend Engineerto work with theHotels division , responsible for building and scaling our hotel booking and aggregation system. You will work on high-scale, low-latency distributed systems that integrate with multiple hotel suppliers, channel managers, and property management systems. This role requires expertise in architecting, designing, and implementing high-performance backend services that can handle millions of hotel searches and transactions in real-time. Key Responsibilities: Architect and Scale : Design and optimize OnArrival’s hotel infrastructure to handle high traffic, ensuring fault tolerance, security, and resilience. API Development : Build and enhance high-performance RESTful and GraphQL APIs that power our hotel module. Supplier Integrations : Integrate and optimize connectivity with global hotel suppliers, aggregators, and direct properties to ensure the best inventory and pricing. Metadata & Search Optimization : Design caching and data indexing strategies usingRedis, ElasticSearch, and MongoDBto deliver ultra-fast property search results. Reliability and Observability : Implementdistributed tracing, logging, and monitoringto ensure system reliability. Security & Compliance : Ensure adherence toSOC 2, ISO, and PIPAsecurity standards, with a focus ondata localization . Collaboration : Work closely with product, frontend, and infrastructure teams to enhance the hotel booking experience. Mentorship : Guide and mentor junior engineers, fostering a strong engineering culture within the team. Requirements: 8+ years of experience inbackend engineeringwith expertise inKotlin (preferred) or Java . Strong background in designinghigh-scale distributed systems and microservices . Deep understanding ofMongoDB, Redis, ElasticSearch, and event-driven architectures (Kafka or Confluent) . Experience working with hotel industry standards such aschannel managers, PMS APIs, and hotel supply aggregators (Hotelbeds, DerbySoft, RateGain, etc.) . Strong focus onAPI performance, security, and observability . Experience withcloud-native architectures on AWS/GCP . Familiarity withCI/CD pipelines, Kubernetes, and DevOps best practices . Previous experience leading teams or mentoring engineers is a plus. Why Join Us? Be part of a cutting-edge travel tech company that is redefining the industry. Work on a high-scale platform that integrates with global travel suppliers. Competitive salary, stock options, and remote-friendly work culture.

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