Senior Engineer

Senior Engineer

Belfast, Northern Ireland

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 / streaming, online video, display, and audio. Our tech fuels billions of transactions per day!

We are looking for a senior backend engineer who loves tackling high volume data ingestion and tuning ultra-low-latency services. If you thrive in a collaborative, high-ownership environment and want to shape the future of audience targeting at scale, we’d love to meet you.

Our team builds Magnite’s data-management-platform (DMP) and audience-targeting solutions. We:

Operate terabyte-scale data pipelines that aggregate billions of records every day

Stream, ingest and asynchronously process 50 million+ events every day

Run sub-20 ms, high-QPS microservices in production

Web scrape & content classify almost the whole of internet

Solve problems with a polyglot approach — Java, Go, PySpark, and the right tool for the job

In this role you will:

Design & build streaming-ingestion pipelines and asynchronous workers that aggregate events with Kafka

Design & build APIs for internal and external customers

Create high-QPS, low-latency microservices that power real-time audience targeting

Own service life-cycle end-to-end design, coding, code-review, CI/CD, observability

Collaborate cross-functionally with Ops, Data Science, and Product to turn ideas into production systems

Work collaboratively with multiple teams to deliver quality software

Support operation of services in production

Perform design and code reviews

We’re looking for someone with:

4+ years of working as a software engineer

Strong computer-science fundamentals (algorithms, data structures, complexity analysis)

Proficiency in Java and/or Go – with a willingness to work in both

Proficiency in using Relational & Document storage, and caching systems

Passion for learning new languages and technologies quickly

Strong communication skills, both written and verbal

The ability to demonstrable experience in mentoring engineers

A visible passion for developing software, creating solutions, and growing people

Our current tech stack:

Golang, Java

ECS, Fargate, Docker, ALB, HAProxy

RDS, MariaDB, DocumentDB, Postgres, ScyllaDB

Redis, Memcache

Kafka, SNS, SQS

Terraform, Github Actions, Jenkins

Comprehensive Perks and Benefits:

Holiday Breaks and Quarterly Wellness Days

Equity and Employee Stock Purchase Plan

Family-Focused Benefits and Parental Leave

Private Medical Insurance

Competitive Pension Plan

Disability and Life Insurance

Mobile 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 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.

Magnite Invests in You:

Career Development Initiatives and a Career Growth Framework

Culture and Inclusion Programs

Bonusly Peer-to-Peer Recognition Program

Community Service and Volunteer Events

Company-Matched Charitable Contributions

Mental Health Support

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.

Our Commitment: We aim to incorporate a wide range of voices into our Magnite culture, cultivating an environment where employees feel welcomed, cared for, and encouraged to freely share ideas. We are committed to employee growth, collaboration, inclusion, and innovation. We invest in Magnite’s local communities. We seek talent from all backgrounds to champion corporate values of seeing the big picture and being catalysts of change.

Want to learn more about us?

Check out our blog for Magnite announcements and Ad Tech industry news!

Recruiting Agency Notice

Magnite does not accept agency resumes and is not responsible for any fees related to unsolicited resumes.

R-01070