Magnite · 1 day ago
Senior Engineer, Backend APIs
LA Metro Area
Full-time
Onsite
Mid, Senior Level
$125K/yr - $155K/yr
5+ years expMagnite is the world’s largest independent sell-side advertising platform, and they are seeking a Senior Engineer for their Backend APIs team. The role involves designing and building microservice-based API products to enhance reporting and analytics applications, collaborating with cross-functional teams, and ensuring high-quality code and services in production.
AdvertisingAdvertising PlatformsContentDigital Media
Responsibilities
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
Leverage AI-assisted tools in your development process
Qualification
Required
5+ years of software engineering experience, including 3+ years with Java
Deep understanding of microservice fundamentals (service boundaries, resiliency, observability, CI/CD) and API design at scale
Primary development experience in Java for high-throughput, low-latency back-end web services
Experience with asynchronous programming patterns, high levels of concurrency, and with frameworks such as Vert.x and Dropwizard is highly desirable
Hands-on experience with Postgres (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
Preferred
Exposure to cloud providers (AWS, GCP, or Azure) and container orchestration (Docker/Kubernetes)
Familiarity with functional programming concepts
Experience with event‑driven or streaming architectures
Understanding of authN/Z patterns (OAuth2/JWT), rate limiting, and API security
Observability tools and practices (metrics, tracing, logs) and load/perf testing
Knowledge of Real-Time Bidding (RTB), SSPs, DSPs, and ad delivery systems is a strong plus
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
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
Company
Magnite
Magnite is a sell-side advertising platform that provides technology for publishers to monetize their content across all screens and format.
501-1000 employees
H1B Sponsorship
Magnite has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (10)
2024 (22)
2023 (15)
2022 (12)
2021 (17)
Funding
Current Stage
Public CompanyTotal Funding
$940M2024-02-06Post Ipo Debt· $540M
2021-03-15Post Ipo Debt· $400M
2014-04-04IPO
Leadership Team
Michael Barrett
Chief Executive Officer
Garrett McGrath
Senior Vice President, Product Management
Recent News
2026-01-06
2026-01-06
Company data provided by crunchbase