Senior / Software Engineer - Java (Core Platform/Convert)
Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Apr 3, 2026. PubMatic scores B on the Alion truth index.
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, develop, and optimize backend systems that power large-scale ad delivery, targeting, and reporting. You will also have the opportunity to leverage AI and Generative AI technologies to create intelligent solutions that enhance ad generation, optimization, and personalization, driving measurable impact in digital advertising.
What You'll Do:
- Ability to create and present design reviews independently, translating feature requirements into robust technical designs.
- End-to-end ownership of solution design, development, testing, planning, execution, and release for feature requirements.
- Experience and/or knowledge of Java 11 or higher.
- Proficiency in SQL and relational databases, including complex queries, performance optimization, schema design, indexing, and stored procedures.
- Strong knowledge of Data Structures and OOPS concepts.
- Hands-on experience with Core Java and J2EE technologies (Java, Spring, Spring Boot, Hibernate/MyBatis).
- Knowledge and practical experience with scripting languages, preferably Python.
- Strong understanding of CI/CD concepts, including pipeline creation, automation, integration, and deployment workflows.
- Hands-on experience with tools/technologies like Kubernetes, Jenkins, Maven, GIT, and Docker.
- Experience in REST Web Service development.
- Proficiency in using generative AI-based tools and IDEs to boost productivity and code quality.
- Detailed knowledge of different AI models and advanced prompt engineering techniques, with the ability to apply them effectively in software development
- Experience in JUnit and unit testing best practices.
- Experience working on high-performance and scalable systems (preferred).
- Familiarity with UI technologies such as HTML, JavaScript, and CSS.
- Familiarity with Test Driven Development (TDD), refactoring, code reviews, continuous integration/delivery, and Agile development practices.
We'd Love for You to Have:
- 3-5 years of experience in Java and Linux/UNIX environments.
- Understanding of advanced AI concepts, including RAG, agentic AI, and model fine-tuning.
- Use best practices of Agile-based software development and documentation, ensure designs meet requirements, and deliver high-quality work.
- Demonstrated ability to be self-driven and work independently.
- Demonstrate work ownership and focus to deliver on time.
- Willing to go the extra mile to achieve greater results.
- Work with teams to achieve desired goals.
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.