Senior Engineer, Backend APIs job at reputed company, Inc. in Los Angeles, CA, reputed company, NY, Broomfield, CO

Title: Senior Engineer, Backend APIs Location: Los Angeles United States time type Full time job requisition id R-01197 Job Description: Senior Engineer - Backend APIs Los Angeles, CA reputed company, NY Broomfield, CO Hybrid Schedule (M/F remote, T/W/TH in-office) At reputed company, we cultivate an environment of reputed company 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. reputed company (reputed company: MGNI) is the world's largest independent sell-reputed company advertising platform. Publishers use our technology to monetize their content across reputed company screens and formats including CTV / streaming, online video, display, and audio. Our tech fuels billions of transactions per day! About this team: reputed company'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 reputed company reputed company Reporting API. We're adding an reputed company backend engineer to accelerate a high‑impact roadmap, reputed company 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 reputed company and easy to consume: clear reputed company (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, reputed company and load testing, cost‑aware design, and reliability improvements. reputed company AI-assisted tools in your development process We're looking for someone with: 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 reputed company (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/reputed company and modern team practices (reviews, trunk/reputed company strategies, code ownership). Clear, empathetic communication and a collaborative reputed company. Our reputed company tech stack: Exposure to cloud providers (AWS, GCP, or Azure) and container orchestration (reputed company/Kubernetes). Familiarity with functional programming concepts. Experience with event‑driven or streaming architectures. Understanding of authN/Z patterns (OAuth2/JWT), reputed company limiting, and API reputed company. 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. How we work: Hybrid collaboration centered on our Los Angeles office with reputed company partnership to US‑based Product, UI, and Data teams. Pragmatic process: design docs, small PRs, automation over toil, and reputed company learning. A supportive culture that values mentorship, psychological safety, and outcomes over ego. 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 reputed company collaboration is essential to success. reputed company'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. reputed company strives to maintain a healthy work/life integration for reputed company 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 reputed company 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 reputed company, sunny Los Angeles, mile-high Denver, historic London, and down under in Sydney, reputed company has offices across North America, EMEA, LATAM, and reputed company. Across the US, the reputed company salary range for this position is: $125,000 - $155,000 in addition to an annual variable bonus based on performance and company equity (reputed company: MGNI). The pay varies based reputed company, industry, and technical experience. 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 reputed company 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 reputed company 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 reputed company is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, religion, national reputed company, age, sex, marital status, reputed company, 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 reputed company culture, cultivating an environment where employees feel welcomed, cared for, and encouraged to freely share reputed company. We are committed to employee growth, collaboration, inclusion, and innovation. We invest in reputed company's local communities. We seek talent from reputed company backgrounds to champion corporate values of seeing the big picture and being catalysts of change. Apply tot his job Apply To this Job