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Engineer II - API; JavaScript​/RoR

Job in Los Angeles, Los Angeles County, California, 90079, USA
Listing for: Magnite, Inc.
Full Time position
Listed on 2026-02-16
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 115000 - 135000 USD Yearly USD 115000.00 135000.00 YEAR
Job Description & How to Apply Below
Position: Engineer II - API (JavaScript/RoR)

Hybrid Schedule (M/F remote, T/W/TH in-office)

At Magnite, we cultivate an environment of continuous growth and collaboration. Our work impacts what millions of people read, watch, and buy, and we’re looking for people to help us tackle that responsibility with creativity and focus. Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising platform. Publishers use our technology to monetize their content across all screens and formats, including CTV, online video, display, and audio.

Our tech fuels billions of transactions per day!

About this team:

Spring Serve is the only advertising ecosystem purpose-built for today’s connected and streaming television experiences. We are looking for a Software Engineer II to join our Spring Serve UI team, where you will develop the APIs and UIs that drive the configuration and reporting interfaces for our world-class ad server and ad buying platforms.

As an Engineer II You Will:

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)

Manage individual project priorities, deadlines, and deliverables with your technical expertise

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

Write production-ready code and unit tests that meet both system and business requirements

Respond to feature requests, bug reports, performance issues, and ad-hoc questions

Work collaboratively with multiple teams to deliver quality software

Support the operation of services in production

Perform design and code reviews

We’re looking for someone with:

3+ years of relevant work experience in software development

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, and Jira

Nice to Have:

General Ad Technology experience, ideally with header bidding technologies in a production environment

Postgres or other Relational DB experience with SQL and Table design

Ruby, especially Rails

Typescript

Proficiency with Linux

Perks and Benefits :

Comprehensive Healthcare Coverage from Day One

Generous Time Off

Holiday Breaks and Quarterly Wellness Days

Equity and Employee Stock Purchase Plan

Family-Focused Benefits and Parental Leave

401k Retirement Savings Plan with Employer Match

Disability and Life Insurance

Cell Phone Subsidy

Fitness and Wellness Reimbursement

Company Culture:

We believe collaboration is essential to success. Magnite’s hybrid schedule includes two days worked remotely (Monday and Friday) and three days on-site (Tuesday, Wednesday and Thursday). Our offices provide catered lunches, beverages, snacks, training and development, and office events to support your work week. We also understand you have appointments, families, hobbies, and other commitments. Magnite strives to maintain a healthy work/life integration for all employees so you can bring your best every day - both at work and at home.

Community Service and Volunteer Events

Company-Matched Charitable Contributions

Wellness Coach and Mental Health Support

Career Development Initiatives and a Career Growth Framework

Culture and Inclusion Programs

Bonusly Peer-to-Peer Recognition Program

About Us

The world's leading agencies and brands trust our platform to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month. Anchored in bustling New York City, sunny Los Angeles, mile-high Denver, historic London, and down under in Sydney, Magnite has offices across North America, EMEA, LATAM, and APAC.

The base salary range for this position, across all United States geographies, is $115,000 - $135,000 per year. The upper portion of the salary range is typically reserved for existing employees who demonstrate strong performance…

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