Senior Software Engineer - Java API developer

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: