Magnite
Front End Engineer II
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Front End Engineer II
Engineer II
Location: Belfast, Northern Ireland Schedule: Hybrid (Monday/Friday remote, Tuesday/Thursday/Friday in-office)
About the Role
At Magnite, we foster an environment of growth and collaboration—where millions of users' reading, viewing, and purchasing experiences are directly shaped by our technology. As the world's largest independent sell-side advertising platform, we empower publishers to monetise content across CTV/streaming, online video, display, and audio, handling billions of transactions daily.
We’re seeking an Engineer II to join our Streaming UI team in Belfast. This team builds critical React applications that leverage ad-serving functionality—middleware for inventories, deals, diagnostics, reporting, and forecasting—allowing our publishers to navigate ad processes seamlessly. Here you’ll work alongside global engineering teams in New York, Los Angeles, and Colorado to transform complex real-time data into intuitive tools that publishers and account managers can use effectively.
Whether you’re a detail-oriented problem-solver, a Reactor veteran, or simply someone eager to collaborate during our peak (3 pm–5 pm GMT) overlap hours, play a direct role in making technical processes effortless for end users.
Responsibilities
- Write production-ready code and unit tests to meet performance, stability, and customer requirements.
- Address feature requests, bug reports, performance issues, and ad-hoc queries efficiently.
- Work cross-functionally to deliver high-quality software.
- Assist in monitoring and optimising services in production.
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Requirements
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Core Technical Skills:
- Extensive experience in building and scaling modern, high-traffic React applications.
- Proficiency in front-end data handling, including leveraging API mocks and seamless RESTful (e.g., Java Spring Boot) integration.
- Strong knowledge of UI/UX design, including translating design mockups into high-fidelity, responsive, and reusable components.
- A track record of delivering production-grade code with comprehensive unit tests for stability.
- Experience in collaborative, distributed environments, particularly with cross-region teams (e.g., cross-country engineering).
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Critical Soft Skills:
- Comfortable with core overlap hours (3 pm–5 pm GMT) for real-time NY/LBs global collaboration.
- Strong Computer Science fundamentals (browser performance, state management, async programming).
- Min. B.S. in CS/EE, Math, Physics, or related field.
- Ability to balance pragmatism with high standards, delivering solutions rapidly.
- Creative problem-solving and an ability to navigate ad-serving complexities (dashboards, reporting, inventory).
- Focused on innovation and collaboration—ready to shape both code and product strategy.
- Excellent communication; a team player, with high attention to detail.
Perks and Benefits
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- Holiday leave + Quarterly Wellness Days
- Equity/ESPP
- Family-Friendly Benefits (including paid parental leave)
- Private medical insurance
- Competitive pension plan
- Disability & life insurance
- Mobile phone subsidy
- Fitness reimbursement
Company Culture
Magnite’s hybrid model is built on flexibility and creativity—** Monday/Friday remote; Tues/Thurs/Wed in-office**—with located lunches, wellness support, and office events. We recognise employees have family, hobbies, and commitments outside work and prioritise work-life balance to ensure each day delivers your best self.
Our investment in you extends beyond coding:
- Career Development & Growth Framework
- Inclusion & Accessibility Programs
- Peer-to-peer recognition through Bonusly
- Community service opportunities + matched charitable contributions
- Mental health support
About Us
Magnite powers billions of ad transactions monthly, trusted by global agencies and brands. Our environment is collaborative, inclusive, and reliant on diverse voices. We’re headquartered across USA, UK, Australia, and growing in APAC/LATAM—with a shared commitment to championing big-picture ideas and change.
Visit Us
Explore Magnite’s blog for updates and Ad Tech news [here]. Our career page and interview process mark the start of your growth inside a dynamic global team. Get in touch to learn more. (Note: Do not apply via agencies. Magnite doesn’t pay recruitment fees.)
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