Senior Engineer — Backend APIs (Java)
New York City, NY
Boston, MA
Los Angeles, CA
Denver, CO
Seattle, WA
San Francisco, CA
Remote - Approved States Listed Below
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!
About this team:
Magnite’s Reporting & Insights group powers our flagship analytics products — Performance Analytics (PA), Prebid Analytics (PBA), and the SpringServe platform's reporting — and is building the next‑generation Unified Reporting API. We’re adding a senior backend engineer to accelerate a high‑impact roadmap, elevate API developer experience, and partner closely with our UI and Data teams to ship features that our publishers and DSPs rely on to understand and optimize campaign performance.
In this role you will:
Design, build, and evolve microservice‑based API products that power reporting and analytics applications.
Collaborate daily with Product, UI, and Data engineers to take features end‑to‑end — from requirements and design to rollout, telemetry, and iteration.
Design and build APIs that are intuitive and easy to consume: clear contracts (OpenAPI/gRPC), well-documented, versioning strategies, pagination, filtering, batching, and strong SLAs/SLOs.
Shape data access patterns: schemas, query plans, caching, and performance tuning in read/writes for big data.
Champion code quality: well‑tested, observable, maintainable code; thoughtful reviews; design docs; and pragmatic documentation.
Own services in production: dashboards, alerting, capacity and load testing, cost‑aware design, and reliability improvements.
Mentor teammates, share knowledge, and help raise the technical bar across the organization.
We’re looking for someone with:
5+ years of software engineering experience, including 2+ years with Java.
Deep understanding of microservice fundamentals (service boundaries, resiliency, observability, CI/CD) and API design at scale.
Hands-on experience with MySQL (or other RDBMS): modeling, migrations, indexing, and query optimization.
A track record of shipping well‑tested, production‑grade APIs used by UI applications and direct API consumers.
Proficiency with Git/GitHub and modern team practices (reviews, trunk/branch strategies, code ownership).
Clear, empathetic communication and a collaborative mindset.
Nice to Have:
Exposure to cloud providers (AWS, GCP, or Azure) and container orchestration (Docker/Kubernetes).
Experience with event‑driven or streaming architectures.
Experience with frameworks like Vert.x to build non-blocking, event-driven systems.
Understanding of authN/Z patterns (OAuth2/JWT), rate limiting, and API security.
Observability tools and practices (metrics, tracing, logs) and load/perf testing.
Experience working with distributed/remote teams.
Knowledge of Real-Time Bidding (RTB), SSPs, DSPs, and ad delivery systems is a strong plus.
Experience with Terraform.
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 is: $130,000 - $160,000 in addition to an annual variable bonus based on performance and company equity (NASDAQ: MGNI).
Only candidates in the following states will be eligible for employment: AZ, CA, CO, FL, GA, ID, IL, MA, MI, MT, NE, NJ, NY, NC, OK, OR, PA, SC, TX, UT, VA, WA.
For Los Angeles-based applicants:
Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
The material job duties of this specific job position for which Magnite reasonably believes that a criminal history may have a direct, adverse, and negative relationship include:
Having access to the Company’s Confidential Information or trade secrets including data related to customers, clients, vendors, business partners, or suppliers
Work with cross teams to access datasets, databases, formulas, algorithms, tools, products, prototypes, systems applications, and technologies in any stage of development
Magnite is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation or any other federal, state or local protected class.
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.
Top Skills
What the Team is Saying
What We Do
Together, we power advertising that enables billions of people to stay informed, entertained, and connected. We introduce them to new ideas, products, and services that make their lives better. And we help media owners of all sizes realize their full potential.
That’s a lot — that’s the power of advertising. But it’s only possible with great technology. And that’s where Magnite comes in.
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!
Why Work With Us
At Magnite, our work impacts what millions of people read, watch, and buy. We strive to cultivate an environment of continuous growth and collaboration. We’re seeking out individuals who share an alternative perspective, challenge the status quo, and aren’t afraid to raise the bar!
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Magnite Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Magnite’s hybrid schedule includes two days worked remotely (Monday and Friday) and three days on-site (Tuesday, Wednesday and Thursday) in all offices. Our offices provide daily lunches, beverages, snacks, training, development, office events.
