Full Stack Engineer

Role: Full Stack Engineer


Location: Multiple Locations


Type: Contract

The Difference You Will Make


We are looking for engineers who are passionate about making a difference through their work. You will operate in a globally collaborative environment and lead through influence and partnership to transform ideas into reality. In this role, you will help develop and evolve search and experimentation systems, prototype solutions, and adopt advanced technologies across both backend and frontend layers.


Required Experience

• 5-8 years of hands-on experience in a professional software engineering role

Technical Expertise


Backend Engineering

• Proficiency in Java, Scala, and Python (at least one required; others preferred)
• Strong experience with test-driven development, including unit and integration testing
• Experience with CI/CD and deployment pipelines (e.g., Spinnaker or similar tools)

Proficiency with databases and storage technologies, including:

• TiDB, RocksDB, MySQL
• Redis, Memcached

Key-value stores

• Solid understanding of Thrift and Protobuf schemas
• Experience building and maintaining APIs and backend services
• Familiarity with latency, throughput, load balancing, and load testing
• Ideal candidates have hands-on experience running performance tests and optimizing systems for efficiency
• Familiarity with SQL and Spark

Frontend Engineering

• Strong expertise in HTML, CSS, JavaScript, and TypeScript
• Experience with modern JavaScript frameworks, especially React
• Passion for building interactive and delightful user experiences
• Portfolio of prior projects is a strong plus

Nice to Have

• Experience with AI coding assistants such as Claude Codeand GitHub Copilot

Sample Projects & Areas of Impact

• UI & Product Experience

Kendall:

• Support UI changes to allow users to select query sets for daily index SxS
• Build more intuitive information displays to support current and future use cases

Counterfactual evaluation:

• Scorecard iteration and improved presentation
• Search, Evaluation & Performance

Kendall:

• Support evaluation performance optimization
• Offline counterfactual scoring - support pipeline migration
• Debug tooling for personalization and AI Search, including ranking and explanation systems

Metrics, Monitoring & Developer Experience

• Side-by-side (SxS) metrics cleanup and UX improvements to improve developer velocity
• Example: p2 carousel metrics mixed with unrelated metrics
• Filter ranking changes showing amenity IDs instead of amenity names
• Set up alerting for new and existing applications using Grafana and PagerDuty

Platform Health & Maintenance Cleanup of:

• Old and deprecated code
• Deprecated trebuchets
• Retired experiments and legacy components