Senior Software Engineer, Experimentation Platform
Job description
A senior software engineer role on Airbnb's Experimentation team, co-owning the client libraries and services used for feature flagging, product configuration and A/B testing, primarily on the JVM. The role focuses on consolidating these systems onto a single platform and leading safe cross-team migrations.
At a glance
- Work mode
- Remote
What you'll do
- Build and extend the capabilities of our experimentation, feature flagging and product configuration clients and the services behind them.
- Design and lead cross-team migrations: evolving client APIs, deprecating old ones, and moving consuming services over safely.
- Improve the testability, performance and reliability of client libraries that are widely deployed and tightly interconnected.
- Build new allocation and targeting capabilities in partnership with data science, such as holdouts and mutually exclusive experiments, with attention to statistical pitfalls.
- Use AI-assisted development to move faster on migrations, tests and refactors, and help the team set good practice for it.
- Participate in all phases of software development from design through implementation, testing and on-call, and work across the stack, including Python services, when the problem needs it.
What we're looking for
- 5+ years in a hands-on software engineering role, shipping high-quality code to production.
- Strong experience in a JVM language (Java or Kotlin), building libraries or services that other developers depend on, with a deep understanding of OOP and API design, including backward compatibility and versioning.
- Experience driving changes across teams you do not own, such as migrations or deprecations with many consumers, and the communication skills and track record to lead projects that span teams.
- Hands-on fluency with AI-assisted development: you use coding agents and LLM tools day to day and know how to verify what they produce.
- Comfortable working in Python and other layers of the stack, or eager to.
Nice to have
- Experience with feature flagging or product configuration systems, experimentation platforms, or web and mobile clients.
- Experience with latency-sensitive, high-throughput client SDKs.
Your team
Experimentation team
The Experimentation team's mission is to provide an insightful, reliable and easy to use experimentation platform (A/B testing and feature rollout) for customers across the company. Thousands of experiments run on our platform each year. Our team is multidisciplinary, owning a vertical stack that includes UIs for setting up and analyzing experiments, data pipelines and libraries for calculating results, and the clients and services that deliver feature flags, product configuration and experiment
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About Airbnb
Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way.
Key facts
- 2007
- Over 5 million hosts
- Over 2 billion guest arrivals
- Hosts in almost every country across the globe
What they value
- Diverse ideas foster innovation and engagement
- Inclusion & belonging