Job Specifications
Haystack is working with Expedia on this opportunity!
Software Development Engineer II (Backend)
A global technology leader in travel is hiring a Backend Software Engineer (SDE II) to design, build, and scale distributed pricing and booking systems used by millions of travellers worldwide. You'll join a collaborative, data-driven engineering team focused on building high-performance backend services and optimising cloud-native infrastructure to deliver fast, accurate, and reliable customer experiences.
What you'll be doing:
Design, develop, and maintain high-throughput, low-latency distributed services that power global pricing and booking workflows.
Implement robust caching mechanisms (Redis, Couchbase, Memcached) to optimise performance and reduce latency.
Build and operate microservices at scale (1M+ TPS) within AWS or similar cloud environments.
Collaborate on architecture reviews, produce clear technical documentation, and participate in detailed code reviews.
Contribute to event-driven system design using Kafka Streams, AWS Kinesis, or equivalent.
Drive reliability through auto-scaling, blue-green deployments, and canary releases.
Maintain SLAs, SLOs, and SLIs for critical services, ensuring system resilience and observability.
Mentor engineers, foster a collaborative environment, and continuously improve technical standards.
What you'll bring:
Degree in Computer Science or equivalent experience (3+ years in software development).
Strong coding skills in Java, Scala, or Kotlin (OO and functional programming).
Proven experience building and operating distributed systems and event-driven architectures.
Hands-on experience with AWS cloud, microservices, and CI/CD pipelines.
Solid understanding of SQL and NoSQL databases, data structures, and API patterns.
Practical experience developing and optimising distributed caching solutions.
Experience working within Agile delivery teams using modern version control, CI/CD, and test-driven development.
Excellent problem-solving, analytical, and communication skills.
Why join:
You'll join a global engineering community that values openness, collaboration, and inclusion. The company offers flexible hybrid work, competitive benefits, and unique travel perks, alongside opportunities to contribute to large-scale systems that shape the future of digital travel.
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