Senior Fullstack Engineer, Tech Foundations

United States · USD 196,000-230,000 · 5+ years experience · Posted Oct 1, 2026

At a glance

You will help build internationalization infrastructure, create paved paths for product teams, and enable responsible experimentation with machine learning and large language models.
The Internationalization Infrastructure team owns translation workflows, guardrails protecting quality and reliability, and foundational libraries ensuring consistent internationalization across platforms.

Design and build high-scale translation workflows, APIs, UIs, and libraries that provide consistent paved paths across Airbnb.
Simplify legacy systems through safe migrations while improving reliability, observability, latency, security, and cost efficiency.
Prototype applications of machine learning and large language models, then turn validated ideas into durable platform capabilities.
Partner across Globalization, Data Science and ML, product and platform teams, and external vendors to solve ambiguous customer problems.
Measure success through outcomes such as quality, cost, latency, adoption, developer productivity, and operational load.

5+ years of relevant industry experience with a BS or Master's degree, preferably in Computer Science, or equivalent practical experience.
Strong programming skills for hands-on individual-contributor work in Java, Kotlin, C++, or a comparable backend language.
Experience designing, building, and operating distributed systems, APIs, storage and caching systems, event-driven processing, or service-oriented architectures at scale.
Experience evolving production systems through incremental migrations, testing, observability, and operational ownership.
Proficiency with JavaScript or TypeScript and experience with React or comparable modern web technologies sufficient to own internal workflows end to end.
Experience collaborating across organizational boundaries and communicating technical tradeoffs clearly to engineering and non-engineering partners.
A data-informed approach to system quality, reliability, efficiency, and customer experience.
Experience using AI-assisted development tools and agents to accelerate discovery, prototyping, implementation, testing, and documentation, with sound judgment about quality and verification.

Show all 14 skills