Software Development Engineer II - Full-Stack - Front-End Focus

Responsibilities

• Design, build, test, and maintain scalable frontend applications and user-facing platform capabilities for advertising technology products and services, primarily using React.js and Type Script.
• Develop intuitive, performant, and maintainable web experiences that support a wide range of B2B partners, from large enterprises to creators and small businesses.
• Contribute to backend services and APIs using Java or Kotlin, supporting frontend functionality and end-to-end product delivery.
• Participate in system design, low‑level design, API design, and data modeling to deliver reliable, extensible solutions across frontend and backend components.
• Collaborate with engineers, product, and partner teams to translate business needs into technical solutions that improve advertising platform capabilities and customer outcomes.
• Own well‑defined components and services, troubleshoot production issues, and improve operational health through monitoring, debugging, automation, and continuous improvement.
• Write high‑quality, secure, and well‑tested code, participate in code reviews, and follow engineering standards that support performance, scalability, accessibility, and resilience.
• Safely integrate and operate AI/ML‑enabled solutions that improve outcomes, including familiarity with AI‑driven systems, tools, or workflows, and apply AI/ML concepts to real‑world products.

• Strong proficiency in JavaScript, Type Script, React.js, and GraphQL.
• Working proficiency in Java or Kotlin for backend development and service integration.
• Bachelor’s degree in a technical field, or equivalent related professional experience.
• 2+ years of software development experience building and supporting production systems and services.
• Experience building frontend applications in a modern web stack, with an emphasis on component‑based architecture, state management, performance, and maintainability.
• Experience owning components or services within a team, with responsibility for implementation, testing, deployment, and operational support.
• Proficiency in software engineering fundamentals, including coding, data structures, algorithms, debugging, and version control, with working knowledge of system design, low‑level design, API design, and data modeling.
• Experience developing reliable, scalable applications and working across more than one technical area or service, with the ability to diagnose issues and deliver maintainable solutions.

• Experience building software for advertising technology, marketplace, or other high‑scale distributed platforms.
• Demonstrated strength in frontend engineering, including building responsive, accessible, and high‑performing user interfaces with React.js and Type Script.
• Experience contributing to architecture or design discussions for frontend applications, services, APIs, and data models within a team‑owned domain.
• Demonstrated ability to improve service quality through observability, automation, performance tuning, and operational excellence practices.
• Familiarity with AI‑driven systems, tools, or workflows, and experience applying AI/ML concepts in production‑oriented software environments.
• Experience using data and metrics to inform engineering decisions, prioritize improvements, and measure the impact of technical solutions.

Seattle, WA – in‑office at least three days a week; relocation assistance not available.

Base salary range: $ – $, with potential for up to $ based on performance.

Medical, dental, and vision coverage; paid time off;
Employee Assistance Program; wellness and travel reimbursement; travel discounts;
International Airlines Travel Agent membership.

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other characteristic protected by law.