Job description

C1X AdTech Pvt Ltd is a fast-growing product and engineering-driven 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 are dedicated to enhancing customer engagement and experiences while focusing on increasing Lifetime Value (LTV) through consistent messaging across all channels.

Our world-class engineering team spans front end (UI), back end (Java/Node.js APIs), Big Data, and DevOps, working together to deliver high-performance and scalable AdTech products.

Role Overview
As a QA Engineer, you will ensure the quality, reliability, and performance of our platforms by designing and executing test strategies, identifying defects, and collaborating with cross-functional teams. You’ll validate RTB systems, integrations with SSP/DSP partners, and campaign delivery workflows, ensuring seamless experiences across our advertising platforms.

Objectives

Design and maintain scalable QA test suites (manual + automated) for complex backend systems and integrations.
Ensure the robustness, performance, and reliability of RTB and AdTech platforms.
Validate standards and integrations with top SSPs & DSPs to guarantee seamless delivery.

Responsibilities

Design and execute comprehensive test plans and test cases for backend systems, microservices, and integrations.
Perform functional, regression, performance, and integration testing across backend and frontend services.
Validate data integrity and accuracy for integrations using OpenRTB and related protocols.
Own QA aspects of campaign implementation, monitoring, and reporting.
Work closely with product and engineering teams to translate business requirements into test scenarios.
Analyze large-scale logs and datasets to identify root causes and quality improvements.
Troubleshoot campaign delivery and system issues in collaboration with internal and external partners.
Conduct peer reviews of test strategies, automation scripts, and QA deliverables.

Qualifications

Bachelor’s degree in Computer Science, Engineering, or related field (problem-solving skills on LeetCode/HackerRank may substitute).
Solid foundation in QA principles, testing methodologies, and defect lifecycle management.
3–5 years’ QA experience in digital advertising or B2B digital marketing industry.
Familiarity with web technologies, RESTful APIs, and distributed systems.
Hands-on with automation frameworks/tools such as Playwright, Selenium, TestNG, JUnit, REST Assured.
Knowledge of performance testing tools (JMeter, Gatling) is a plus.
Exposure to Kafka, ELK stack (Elasticsearch, Logstash, Kibana), and scripting in Java/JavaScript is advantageous.
Understanding of microservices architecture and QA strategies for distributed systems is a plus.

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