Description
About the Role
We are seeking a highly skilled Senior Java API developer with experience in building high-performing, scalable, enterprise-grade backend systems in the digital advertising domain.
In this role, you will design, develop, and optimize backend services powering Mobile Ad SDK systems and AI-driven products such as recommendation engines, monetization optimization platforms, and intelligent ad delivery systems. This role will be responsible for productionizing machine learning models, building high-performance APIs, and enabling intelligent decision systems at scale
What You'll Do:
- Design and develop scalable, secure, and high-performance RESTful APIs using Java (Java 11+) and Spring Boot.
- Own end-to-end solution design, planning, execution, and release of backend features.
- Build and maintain backend services supporting AI-driven initiatives (recommendation systems, predictive analytics).
- Productionize and integrate ML models into backend systems, enabling real-time intelligent decisioning.
- Develop efficient data models and optimize database queries (MySQL/PostgreSQL) for performance and reliability.
- Ensure API security using OAuth2, JWT, and role-based access controls.
- Build for scale—design systems capable of handling high concurrency, large data volumes, and low-latency requirements.
- Implement observability best practices including logging, monitoring, tracing, and alerting.
- Participate in code reviews, design discussions, and technical decision-making to ensure engineering excellence.
- Collaborate cross-functionally with Analytics, Product, SDK, UI, Ad server, DevOps, and QA teams to deliver AI-powered features.
- Leverage generative AI tools and advanced prompt engineering techniques to enhance productivity and code quality.
We’d Love for You to Have
- 3–6 years of experience in Java development in Linux/UNIX environments.
- Strong proficiency in Core Java, OOPS, Data Structures, and J2EE technologies.
- Hands-on experience with Spring, Spring Boot, and Hibernate.
- Strong experience in REST Web Services development and microservices architecture.
- Proficiency in SQL, schema design, indexing, performance tuning, and complex queries.
- Experience with Docker, Kubernetes, Jenkins, Maven, Git, and CI/CD pipelines.
- Experience working on high-performance and scalable AdTech systems (preferred).
- Working knowledge of Python and integration with AI/ML services.
- Understanding of advanced AI concepts including RAG, agentic AI, model fine-tuning, and recommendation systems.
- Experience in JUnit, TDD, refactoring, and Agile development practices.
- Demonstrated ability to work independently and drive technical ownership.
Qualification:
Should have a bachelor’s degree in engineering or an equivalent degree from a well-known institute/university.
Additional Information:
Return to Office: PubMatic employees throughout the globe have returned to our offices via a hybrid work schedule (3 days “in office” and 2 days “working remotely”) that is intended to maximize collaboration, innovation, and productivity among teams and across functions.
Benefits: Our benefits package includes the best of what leading organizations provide, such as paternity/maternity leave, healthcare insurance, broadband reimbursement. As well, when we’re back in the office, we all benefit from a kitchen loaded with healthy snacks and drinks and catered lunches and much more!.
Diversity and Inclusion: PubMatic is proud to be an equal opportunity employer; we don’t just value diversity, we promote and celebrate it. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status
About PubMatic
PubMatic is one of the world’s leading scaled digital advertising platforms, offering more transparent advertising solutions to publishers, media buyers, commerce companies and data owners, allowing them to harness the power and potential of the open internet to drive better business outcomes.
Founded in 2006 with the vision that data-driven decisioning would be the future of digital advertising, we enable content creators to run a more profitable advertising business, which in turn allows them to invest back into the multi-screen and multi-format content that consumers demand.
Similar jobs
About the Role We are looking for a passionate Data Engineer to join our Mobile Advertising Platform engineering team. In this role, you will build highly scalable data platforms powering Mobile Programmatic Advertising,…
About the Role We are hiring a Principal/Senior Software Engineer to lead the design and evolution of our high-frequency, large-scale AdTech platform. This pivotal role blends deep expertise in Java backend systems with…
About the Role We are seeking a Senior/Software Engineer with proven experience in building high-performing, scalable, enterprise-grade applications in the digital advertising domain. In this role, you will design, devel…
About the Role PubMatic is looking for engineers with expertise in Generative AI and AI agent development. You will be responsible for building and optimizing advanced AI agents that leverage the latest technologies in R…
About the Role PubMatic is seeking Data Analytics-focused Senior / Software Engineers with expertise in building and optimizing AI agents, including strong skills in Hadoop, Spark, Scala, Kafka, Spark Streaming, and clou…
About the Role The Software Developer role is a full-stack engineering position focused on building scalable, AI-enabled product capabilities within a mature technology ecosystem. With 3 -5 years of experience, you’ll co…
Software Engineer - UI (On Contract) About the Role The Software Developer role is a full-stack engineering position focused on building scalable, AI-enabled product capabilities within a mature technology ecosystem. Wit…
About the Role PubMatic is seeking a Data Analytics-focused Principal Software Engineer with experience in building and optimizing AI agents, including strong skills in Hadoop, Spark, Scala, Kafka, Spark Streaming, and c…
About the Role At PubMatic, we are building the future of the digital advertising supply chain powered by large-scale, real-time systems. As an Infra Monitoring Engineer, you will be part of the Network Operations Center…
About the Role PubMatic is looking for engineers who can design and implement next-generation, highly scalable and low-latency ad server features at scale of 1 trillion+ requests per day in our AD Server. If you get exci…
About the Role Join PubMatic to build the future of performance advertising at internet scale. We are looking for a Senior Software Engineer who is passionate about designing high-performance, low-latency, privacy-first…
About the Role We are seeking a results-oriented Senior Performance Advertising Engineer to own and drive the optimization of our buyer-side and performance marketing systems. In this role, you will be directly responsib…
About the Role PubMatic is looking for engineers with expertise in Generative AI and AI agent development. You will be responsible for building and optimizing advanced AI agents that leverage the latest technologies in R…
About the Role Join PubMatic to build the future of performance advertising at internet scale. We are looking for a Senior Software Engineer who is passionate about designing high-performance, low-latency, privacy-first…
About the Role PubMatic is looking for a Staff Software Engineer to help architect and evolve our next-generation, highly scalable, low-latency AdServer for Connected TV (CTV) – operating at a scale of 1 trillion+ reques…
About the Role PubMatic is looking for engineers who can design and implement next-generation highly scalable, and low-latency ad server features at a scale of 1 trillion+ requests per day in our AD Server. If you get ex…
About the Role:The Associate Director, Finance will oversee all core financial, accounting, and compliance functions of the organization. The role includes responsibility for payroll management, statutory and tax audits,…
About the Role We are seeking a results-oriented Senior Performance Advertising Engineer to own and drive the optimization of our buyer-side and performance marketing systems. In this role, you will be directly responsib…
About the Role PubMatic is seeking an experienced and technically strong Principal Software Engineer to lead the design and development of next-generation Mobile App Monetization capabilities. This role is focused on bui…
About the Role PubMatic is building the next generation of AI-powered products for digital advertising, including intelligent agents that help customers monitor marketplace performance, identify new opportunities, troubl…
About the RoleThe Senior Security Engineer role is a highly technical position responsible for strengthening the organization’s cybersecurity posture through robust infrastructure, endpoint, and cyber security measures.…
Est. 140,000 USD
About the Role: As a Forward Deployed Engineer (FDE) at PubMatic, you will sit at the intersection of software engineering and applied AI, embedded directly within GTM and operational teams to ship production-grade AI wo…
About the Role We are hiring a results-oriented Senior Machine Learning Engineer to join our growing team in Pune on a hybrid schedule. Reporting to the Director of Machine Learning, you will partner with Product and Eng…
About the Role We are seeking an experienced Principal Software Engineer - PubMatic AgenticOS to lead the design and development of highly scalable, low-latency buy-side ad tech systems. This role is ideal for someone wi…
About the Role: PubMatic is looking for engineers, who can design and implement highly scalable and low-latency DSP bidder features in our Activate platform. If you get excited building applications and architecture to h…
About the Role: The Client Services Partner, Advertiser Solutions is responsible for supporting Agency/Advertiser relationships within the PubMatic platform as well as working with current partners and internal teams to…
About the Role: As a key member of our Managed Services team, you will drive growth across our rapidly expanding managed service offerings in Latin America, with Mexico as your primary market and opportunity to expand ac…
Est. 295,000 USD
Role: Hybrid in Redwood City, CA, or New York, NY (Will consider Remote for the right candidate) Must have: Experience in performance advertising, programmatic bidding, or large-scale user-conversion optimization loops P…
Est. 140,000 USD
About the Role: We’re hiring a Director of Product Marketing - Commerce Media, Data Partnerships & Curation - to join our marketing team at PubMatic’s headquarters in Redwood City. This is a strategic, builder-orient…
Est. 165,000 USD
About the Role: The Account Executive, Advertiser Solutions, Political is a hunter role. This person will build new relationships across the political and advocacy agency landscape that complement and extend the agency c…