Principal Engineer II

We’re building the AI-driven future of customer success, from retention to growth! Gainsight is the AI-powered retention engine behind the world’s most customer-centric companies. The Gainsight CustomerOS platform orchestrates the customer journey from onboarding to outcomes to advocacy. More than 2,000 companies trust Gainsight’s applications and AI agents to drive learning, adoption, community connection, and success for their customers. To explore how our suite of solutions is shaping the future of customer success, check out the link . Role Summary In this role, you’ll play a key role in building scalable, high-performance applications by utilising your strong expertise in Core Java, Spring Framework, Spring Boot, Node.js, Angular, API development, MongoDB, PostgreSQL, Apache Kafka, and AWS. This is a great opportunity for someone who thrives in a dynamic, cloud-native development environment and enjoys working cross-functionally with teams like product management and design. The ideal candidate brings strong skills in backend development, with a focus on quality, performance, and the potential use of Camunda for workflow and process automation. What You'll Do: Design, develop, and maintain robust backend applications using Core Java, Spring Boot , and Node.js . Build and manage RESTful API s and microservices for scalable integrations. Develop dynamic, responsive front-end applications using Angular. Work with MongoDB and PostgreSQL for schema design, data modeling, and performance optimization. Develop and manage event-driven systems with Apache Kafka . Deploy, monitor, and optimize solutions in AWS cloud environments (EC2, S3, RDS, Lambda, etc.). Collaborate with QA, DevOps, and Product teams for seamless delivery. Participate in system architecture design, code reviews, and technical discussions. Troubleshoot production issues, ensure reliability, and improve application performance. Mentor junior engineers and contribute to engineering best practices. This is not a complete list of responsibilities, and the scope of the role may evolve with the needs of the team and business. What We're Looking For: Over 8 years of professional development experience in backend and full-stack engineering. Strong expertise in Java (Core Java, Spring Boot, Spring Data, Spring Security). Hands-on experience with Node.js for backend services. Proven experience in API development and microservices architecture. Proficiency in Angular (latest versions) for front-end development. Experience with MongoDB and PostgreSQL (data modeling, query optimization). Strong working knowledge of Apache Kafka (producers, consumers, streaming). Practical experience with AWS cloud services (EC2, S3, RDS, Lambda, CloudWatch, etc.). Familiarity with CI/CD pipelines, Docker, Kubernetes. Strong understanding of design patterns, clean code, and scalable architecture. Excellent problem-solving and debugging skills. Ability to work independently and lead technical discussions. Nice-to-have skills or experience: Good hands-on frontend development experience Exposure to Camunda BPM/workflow automation. Knowledge of caching technologies (Redis, Hazelcast, etc.). Experience with serverless and cloud-native architectures. Prior experience in Agile/Scrum environments. Education Bachelor’s/Master’s degree in Computer Science, Engineering, or related field. Why You’ll Love It Here Gainsight is a place where innovation is shaped through collaboration, curiosity, and a shared focus on solving real-world problems. With a growing suite of products across customer success, product experience, community, education, and AI-powered relationship intelligence, we continue to evolve with the needs of our customers. When people with diverse strengths, a strong sense of community, and true passion for our mission come together, they drive greater impact and create lasting value. What underpins it all is a culture that offers the stability, trust, a ... (truncated, view full listing at source)