Senior Java Developer

2 weeks ago

Delhi, Delhi, India AdPushup Full time

About AdPushup :

AdPushup is an award-winning ad revenue optimization platform and a Google Certified Publishing Partner (GCPP), helping hundreds of web publishers maximize their revenue with cutting-edge technology, premium demand partnerships, and proven ad ops expertise.

Our team is a mix of engineers, marketers, product evangelists, and customer success specialists, all driven by a shared mission to help publishers succeed. At AdPushup, we foster a culture of expertise, ownership, and collaboration where innovation and growth go hand-in-hand.

Role Overview :

We are seeking a Senior Java Developer to join our Backend Development Team. In this role, you will be responsible for designing, developing, and maintaining high-performance, scalable, and distributed backend services that power our ad optimization platform.

You will work closely with cross-functional teams, contributing to system architecture, business logic, and data pipelines while ensuring reliability, scalability, and efficiency at massive scale (1B+ hits daily). This role also involves mentoring junior developers and contributing to technical excellence across the team.

Key Responsibilities :

Must-Have Skills :

- 3-6 years of hands-on experience with Core Java.

- Strong expertise in Spring Boot.

- Proficiency with SQL databases (MySQL, MSSQL, Oracle, DB2, Sybase).

- Experience with NoSQL databases (MongoDB, Couchbase, DynamoDB, etc.).

- Solid experience in system design (LLD/HLD) and scalable distributed systems.

- Experience working with cloud platforms (AWS / Azure / GCP).

- Hands-on with Apache Kafka (streaming & consumers).

- Experience with Apache Spark for big data processing.

- Strong foundation in writing maintainable code, design patterns, unit testing & integration testing.

Backend Development & Design :

- Design, develop, and maintain backend services using Core Java and Spring Boot.

- Build scalable distributed systems with strong emphasis on performance, maintainability, and security.

- Write and optimize Kafka consumers for real-time data streaming.

- Develop and maintain Java/Spark jobs for large-scale data transformation and aggregation.

Data Engineering :

- Build and monitor data pipelines serving 300+ websites and handling 1B+ daily hits.

- Design systems capable of handling 10x scale growth.

- Integrate and manage upstream partner data pipelines (e.g., Google APIs).

System Reliability & Operations :

- Maintain uptime and stability of multiple distributed web applications.

- Implement monitoring, alerting, and system health checks for high-availability services.

- Participate in sprint planning, estimation, and agile development practices.

Leadership & Collaboration :

- Provide technical mentorship and guidance to junior developers.

- Collaborate with product managers, engineers, and other stakeholders to deliver features.

- Contribute to architectural decisions (LLD/HLD) and design reviews.

Good to Have Skills :

- Experience in designing/developing BI and data reporting systems.

- Understanding of data warehousing concepts.

- Familiarity with Docker, Kubernetes, Jenkins, or other DevOps tools.

- Exposure to microservices architecture and CI/CD pipelines.

(ref:hirist.tech)

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