Senior Software Engineer - Java API developer

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

• 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.

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