Principal Software Engineer

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 standards
• SonarQube-based static code analysis

Tech Stack

• Frontend : Angular, React
• Backend: Java, Spring Boot, REST APIs
• Databases: SQL Server, MongoDB
• Integration: REST, messaging, file-based integrations
• DevOps & Cloud : Azure DevOps, CI/CD pipelines, Docker, Azure
• Quality & Code Analysis: JUnit, Mockito, SonarQube

Qualifications

• MCA or Bachelors degree in Engineering, Computer Science, or equivalent.
• 8+ years of hands-on experience in Java-based software development on global or enterprise projects.
• Proven experience in product development environments.
• Strong understanding of the Product Development Lifecycle and Lean Agile / Scrum methodologies.
• Excellent verbal and written communication skills.
• Strong analytical and problem-solving abilities.
• Strong learning mindset and continuous improvement orientation.

Additional Information

Just some of the benefits we offer are:

• Gym membership
• Company pension scheme
• •24/7 Employee Assistance programme (Offering Legal, Financial, Medical advice and counselling), and many more

Why Should You Apply?

• Competitive pay with a well-established and growing international company.
• Good benefits and flexible working opportunities.
• Great location within the city centre.
• Opportunities to progress and grow with the company.
• Occasional opportunities to travel and work around the UK and internationally.