QA Automation Engineer (Node.js & Distributed Systems)

About You You are a QA Automation Engineer passionate about building reliable automation frameworks and ensuring the quality of complex backend systems. You enjoy validating APIs, distributed architectures, and asynchronous messaging while collaborating closely with engineering teams to deliver high-quality software. You thrive in Agile environments where automation, continuous improvement, and technical collaboration are key to delivering scalable and resilient applications. You are proactive, detail-oriented, and committed to identifying risks early while promoting quality throughout the software development lifecycle. You Bring to Halcyon Labs the Following Competencies: Bachelor’s Degree in Computer Science, Software Engineering, Computer Engineering, or a related field is desired, or equivalent professional experience. 3+ years of experience in QA Automation. Strong experience designing and maintaining automated test suites. Experience testing backend services and APIs. Experience testing Node.js applications. Experience working with messaging technologies such as RabbitMQ, Kafka, Amazon SQS, or similar platforms. Experience testing applications hosted on AWS. Understanding of distributed systems and asynchronous architectures. Experience performing functional, integration, regression, and API testing. Strong analytical, troubleshooting, and problem-solving skills. Excellent communication and collaboration skills. Upper-Intermediate English proficiency or higher. You Will Be Accountable for the Following Responsibilities: Design, develop, and maintain automated test suites for backend services. Perform API, functional, integration, and regression testing. Validate asynchronous messaging workflows and distributed system interactions. Test applications and services hosted on AWS. Collaborate closely with developers to embed quality throughout the software development lifecycle. Identify, document, and track defects while assessing production risks and edge cases. Participate actively in Agile ceremonies and continuous improvement initiatives. Promote automation best practices and contribute to improving testing processes across the team. 3+ years of QA Automation experience. Experience testing backend services and APIs. Experience with Node.js applications. Experience with RabbitMQ, Kafka, Amazon SQS, or similar messaging technologies. Experience testing AWS-hosted applications. Understanding of distributed systems. Upper-Intermediate English proficiency. About Us We Are Engineered Different. At Halcyon Labs , talented people design, build, and scale meaningful, AI-powered solutions that create real business impact. As an AI-native organization, we collaborate across design, development, cloud, data, and artificial intelligence to turn ideas into scalable products that transform how companies operate, make decisions, and grow. We are building a high-performance culture grounded in five values: Empowering Excellence, Collaborative Teamwork, Unsolicited Respect, Consistent Transparency, and Efficient Communication . These define how we work, how we support one another, and how we hold ourselves accountable. Halcyon Labs is a place for people who want to learn fast, take ownership, and work alongside strong teams they are proud to belong to. Joining us means being part of an organization that is evolving intentionally, investing in modern ways of working, and leading AI-native transformation at scale. Originally posted on Himalayas