Principal Software Engineer (Java Full stack)

Job Description Cobalt Streamworks IT Solutions, Bengaluru, Karnataka, India With facilities in Europe, the United States, and Asia, Cobalt Streamworks Genomics is an internationally leading provider of DNA sequencing services, genotyping services, DNA synthesis products, and bioinformatics services for pharmaceutical, diagnostics, food, agriculture, biotechnology, and research markets. The Genomics business is powered by global engineering teams building and evolving next-generation applications, Laboratory Information Management Systems (LIMS), customer portals, and enterprise platforms. As a Principal Software Engineer – Java, you will play a critical hands-on role in designing, developing, and modernizing these platforms, ensuring they are scalable, performant, and reliable. This role requires deep Java expertise, strong design and problem-solving skills, and the ability to influence engineering direction through code, architecture contributions, and technical mentoring. You will work closely with engineering, architecture, DevOps, QA, and product teams to deliver high-quality solutions aligned with business and technology goals. This role reports to a Project Manager / Senior Manager. Primary Responsibilities Own and drive hands-on design and development of complex, enterprise-scale Java applications. Lead technical direction for modules or subsystems while remaining actively involved in implementation. Support modernization initiatives, including migration from legacy or monolithic systems to modern architectures. Act as a technical mentor and role model for engineers across teams. Ensure solutions meet performance, scalability, security, and maintainability expectations. Collaborate closely with product, QA, DevOps, and architecture teams to deliver end-to-end solutions. Specific Assignments: Software Engineering & Development Design, develop, and maintain backend and full-stack features using Java, Spring Boot, REST APIs, and relational databases. Support modernization of legacy Java applications to modern, cloud-ready architectures. Build modular services and support microservices-based designs where applicable. Design and integrate RESTful APIs, backend services, and data models. Support UI teams building Angular or React frontends by providing robust backend APIs. Implement high-performance data processing and integration logic for analytical workflows. Design Apply object-oriented design principles and design patterns (SOLID, OOP, layered / hexagonal architecture). Contribute to application and solution architecture discussions. Perform technical trade-off analysis and guide design decisions. Ensure clean, extensible, and maintainable codebases. Quality, Performance & Reliability Ensure high code quality through unit testing, mocking frameworks, and static code analysis. Perform performance profiling, memory analysis, and JVM tuning to resolve bottlenecks. Support performance tuning and stability improvements in production environments. Work closely with QA teams to ensure strong test coverage and release quality. Collaboration & Agile Delivery Work within Agile / Scrum teams, contributing to sprint planning, reviews, and retrospectives. Support end-to-end product development, including development, deployment, and maintenance. Collaborate with global teams and stakeholders across regions. Provide technical guidance and mentoring to engineers. Skills Required Core Technical Skills Strong hands-on experience with: Java (8+) Spring / Spring Boot RESTful API design SQL Angular React Mongo DB AKS, etc Additional Technical Skills Experience with microservices architecture, service communication, and integration patterns. Working knowledge of Hibernate / JPA and transaction management. Exposure to event-driven or message-based systems is a plus. Exposure to Azure cloud-native development is an advantage. Integration - Experience with API-based, file-based, and message-based integrations (e.g., Azure Service Bus or similar). Domain Exposure - Experience with shipping/logistics workflows or scientific data processing (e.g., Genomics, laboratory systems) is a plus. DevOps - Familiarity with Azure DevOps, CI/CD pipelines, Docker, and cloud platforms. Understanding of build and dependency management tools such as Maven or Gradle. Experience with software design patterns, layered architectures, and performance optimization. Proficiency in object-oriented design and clean coding practices. Strong experience with unit testing and mocking frameworks (JUnit, Mockito, etc.). Good hands-on knowledge of performance profiling and memory analysis. Methodologies & Practices The following practices are expected to be actively followed: Scaled Agile, Lean, Kanban, and Zero-Defect Development Daily stand-ups and close collaboration with development teams Continuous Integration and Continuous Deployment (CI/CD) Automated builds, deployments, and testing Automated unit and functional testing Adherence to development guidelines and coding sta