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Senior Software Engineer (JavaScript, React, Ruby on Rails)

Magnite

$150,000 - $180,000
Oct 9, 2025
Los Angeles, Lima, Perú
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Magnite is looking for a Senior Software Engineer to join their SpringServe UI team to develop APIs and UIs for their ad server and ad buying platforms, impacting millions of users and billions of daily transactions.

Requirements

  • Development experience in JavaScript for front-end development with a strong understanding of asynchronous programming
  • Experience building RESTful APIs with other programming languages such as Ruby, PHP, or Python
  • Proficiency writing unit tests
  • A strong understanding of algorithms, data structures, and an ability to recognize the business and technical trade-offs between different solutions
  • Experience with development and CI tools like git, a build management system like Jenkins, Docker, and Jira
  • Experience with MVC patterns and typed languages
  • Postgres or other Relational DB experience with SQL and Table design/optimization

Responsibilities

  • Participate in the full-stack design, development, testing, release, and maintenance of a core product offering as it relates to a critical advertising buying and selling platform (Springserve)
  • Architect and optimize server- and client-side code in React/Typescript and Ruby on Rails
  • Be a creative problem-solver able to design and implement reliable and maintainable solutions to challenging problems
  • Translate business requirements into technical designs and project plans
  • Respond to feature requests, bug reports, performance issues, and ad-hoc questions
  • Support operation of services in production
  • Participate in and lead design and code reviews

Other

  • Manage your own project priorities, deadlines, and deliverables, within a distributed team
  • Mentor and guide engineers, providing technical leadership and fostering a culture of engineering excellence.
  • Collaborate with cross-functional teams to prioritize features, address technical debt, and improve system reliability.
  • 4+ years of relevant work experience in software development
  • General Ad Technology experience, ideally with header bidding technologies in a production environment