Senior Fullstack Engineer, Tech Foundations

United States Digital Space LLC; United States; Remote; USD 166,000 - 226,000; Full time

Job summary

United States Digital Space LLC is seeking an experienced software engineer for the Internationalization Infrastructure team. You will help build scalable translation workflows, APIs, UIs, and libraries that power multilingual experiences.

You will prototype AI-enabled capabilities, partner with globalization, data science, ML, and product teams, and own end-to-end workflows with a focus on reliability and performance.

Qualifications

• 5+ years of relevant industry experience.
• BS or MS in Computer Science or equivalent.
• Experience designing, building, and operating distributed systems.
• Proficiency with Java, Kotlin, C++, or similar backend languages.
• Frontend skills with JavaScript/TypeScript and React.

Responsibilities

• Design and build high-scale translation workflows and APIs.
• Migrate legacy systems safely while improving reliability.
• Prototype AI/ML applications and turn ideas into platform capabilities.
• Collaborate with Globalization, Data Science and ML, product and vendors.
• Measure success by quality, latency, and developer productivity.
• Own end-to-end user workflows and multilingual platform health.

Skills

Java

Kotlin

C++

Distributed systems

JavaScript

TypeScript

React

APIs

Collaboration

AI tooling

Education

BS in Computer Science

MS in Computer Science

Tools

Git

Linux

React

Job description

the company 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.

The Community You Will Join

the company is a mission-driven company dedicated to helping create a world where anyone can belong anywhere. It takes a unified team committed to our core values to achieve this goal. the company's various functions embody the company's innovative spirit, and our fast-moving team is committed to leading as a 21st-century company.

The Difference You Will Make

The Internationalization Infrastructure team, part of Application Platform, builds the technology that helps the company deliver high-quality experiences to guests and hosts around the world. We provide reliable, scalable, and efficient infrastructure and tooling for the company code, content, and stakeholders.

Our team owns three pillars of the company's internationalization platform: translation workflows that move content from authoring through translation and delivery, guardrails that protect quality and reliability, and foundational libraries that make internationalization consistent across platforms.

You will help build this infrastructure, create paved paths for product teams, and enable responsible experimentation with machine learning and large language models. You will partner with Globalization, Data Science and ML, product and platform teams, content stakeholders, and external vendors to reduce friction and improve the global the company experience.

A Typical Day

Millions of people use the company in their preferred languages every day. As an engineer on the Internationalization Infrastructure team, you will:

• Design and build high-scale translation workflows, APIs, UIs, and libraries that provide consistent paved paths across the company.

• 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.

We're looking for engineers who:

• Work autonomously, turning broad goals and ambiguous problems into clear plans, sound decisions, and shipped outcomes.

• Proactively find high-value problems, learn directly from customers and data, and connect technical work to measurable impact.

• Prototype early, especially with AI and machine learning, to test ideas, learn quickly, and invest deeply where evidence supports it.

• Combine strong distributed-systems judgment with the ability to deliver useful, intuitive full-stack experiences.

• Collaborate effectively while taking end-to-end ownership of decisions and execution.

• Act as owners and stewards of the company's multilingual capabilities and the long-term health of the platform.

Your Expertise

• 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. Interest in building AI-enabled platform capabilities is valued; prior ML specialization is not required.

• Passion for globalization, inclusive user experiences, and building infrastructure that helps teams serve a worldwide community.

Our Commitment To Inclusion & Belonging

the company is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.

We strive to also provide a disability inclusive application and interview process.

We ask that you only reach out to us if you are a candidate whose disability prevents you from being able to complete our online application.

Equal Employment Opportunity

the company values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at the company are considered without regard to race, color, religion, national origin, age, gender, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, gender expression, sexual orientation, or any other legally protected characteristic.

How We'll Take Care of You

Our job titles may span more than one career level. The actual base pay is dependent upon many factors, such as: training, transferable skills, work experience, business needs and market demands. The base pay range is subject to change and may be modified in the future. This role may also be eligible for bonus, equity, benefits, and Employee Travel Credits.

Pay Range

$196,000