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Java Back-end RTB Engineer Job Opening In Chennai – Now Hiring C1Exchange


Job description

C1X AdTech Pvt Ltd is a fast-growing product and engineering-based AdTech company building next-generation advertising and marketing technology platforms.

Our mission is to empower enterprise clients with the smartest marketing solutions, enabling seamless integration with personalization engines and delivering cross-channel marketing capabilities.

We focus on enhancing customer engagement and experiences while driving measurable growth in Lifetime Value (LTV).
As part of our world-class engineering team, you will be working across front end (UI), back end (API/Java), Big Data, and Real-Time Bidding (RTB) systems to deliver high-performance, scalable products.
Role Overview
As an RTB Engineer, you will be a key contributor in building and scaling our RTB servers, integrating with top global exchanges, ensuring ultra-low latency performance, and continuously optimizing for business needs.

This role demands strong AdTech domain knowledge, expertise in RTB protocols, and a passion for solving complex engineering problems.

Objectives
  • Design and maintain scalable, efficient backend code with seamless third-party integrations.
  • Build robust, high-performance, and resilient back-end systems for RTB and AdTech platforms.
  • Manage integrations with leading SSP and DSP partners across the industry.

Responsibilities
  • Design, develop, and maintain RTB systems using Java and Spring Boot.
  • Integrate with global ad exchanges via OpenRTB and other protocols.
  • Conduct code and design reviews to ensure best practices and high-quality deliverables.
  • Monitor, analyze, and optimize RTB server performance (latency, throughput, GC tuning).
  • Collaborate with product teams to translate business requirements into scalable solutions.
  • Implement, manage, and monitor ad campaigns while troubleshooting technical issues.
  • Work with large-scale datasets to identify optimization opportunities and improve system efficiency.
  • Drive continuous improvements in reliability, scalability, and fault-tolerance.

Qualifications
  • Bachelor’s degree in Computer Science/Engineering or equivalent.
  • Strong knowledge of data structures, algorithms, and distributed system design.
  • 3–5 years’ experience in digital advertising (display, video, mobile).
  • 2+ years of hands-on experience with RTB systems.
  • Deep understanding of OpenRTB protocol.
  • Expertise in Java, Java EE/J2EE, and Spring Boot.
  • Experience with Hibernate, NIO, and microservice architectures.
  • Strong debugging skills (memory leaks, thread starvation, heap/thread dumps).
  • Understanding of Garbage Collection policies and JVM tuning.
  • Experience with Kafka, ELK stack (Elasticsearch, Logstash, Kibana) is a plus.
  • Knowledge of server-side scripting and performance profiling tools is desirable.

Required Skill Profession

Computer Occupations


  • Job Details

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Are You Looking for Java Back end RTB Engineer Job?

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The Work Culture

An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at C1Exchange adheres to the cultural norms as outlined by Expertini.

The fundamental ethical values are:

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2. Loyalty

3. Impartiapty

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6. Respect for human rights

7. Obeying India laws and regulations

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The average salary range for a varies, but the pay scale is rated "Standard" in Chennai. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

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C1Exchange interview tips for Java Back end RTB Engineer

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Before the Interview:

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Other Openings

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Final Thought:

To prepare for your Java Back end RTB Engineer interview at C1Exchange, research the company, understand the job requirements, and practice common interview questions.

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By following these tips, you can increase your chances of making a positive impression and landing the job!

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