Staff engineer

About On Arrival Travel : On Arrival 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, On Arrival 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 a Staff Backend Engineer to work with the Hotels 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 On Arrival’s hotel infrastructure to handle high traffic, ensuring fault tolerance, security, and resilience.

API Development : Build and enhance high-performance RESTful and Graph QL 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 using Redis, Elastic Search, and Mongo DB to deliver ultra-fast property search results.

Reliability and Observability : Implement distributed tracing, logging, and monitoring to ensure system reliability.

Security & Compliance : Ensure adherence to SOC 2, ISO, and PIPA security standards, with a focus on data 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 in backend engineering with expertise in Kotlin (preferred) or Java.

Strong background in designing high-scale distributed systems and microservices.

Deep understanding of Mongo DB, Redis, Elastic Search, and event-driven architectures (Kafka or Confluent).

Experience working with hotel industry standards such as channel managers, PMS APIs, and hotel supply aggregators (Hotelbeds, Derby Soft, Rate Gain, etc.).

Strong focus on API performance, security, and observability.

Experience with cloud-native architectures on AWS / GCP.

Familiarity with CI / CD pipelines, Kubernetes, and Dev Ops 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.