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I am an experienced Java Software Engineer with a PhD and MSc, combining over 10 years of hands-on development experience with academic rigor. I specialize in building robust microservices and APIs using Java 11+, Spring Boot, and modern DevOps tools. I am dedicated to delivering scalable, maintainable solutions with a strong focus on clean architecture, test-driven development, and continuous improvement. Currently, I work as a Senior Software Engineer at Mercator, designing scalable RESTful APIs and backend services, and collaborating in Agile teams to build high-quality solutions. Previously, I have enhanced security features for Visa applications and led middleware development for case management systems, among other roles. I am passionate about software engineering and continuously advancing my skills and knowledge.…I am an experienced Java Software Engineer with a PhD and MSc, combining over 10 years of hands-on development experience with academic rigor. I specialize in building robust microservices and APIs using Java 11+, Spring Boot, and modern DevOps tools. I am dedicated to delivering scalable, maintainable solutions with a strong focus on clean architecture, test-driven development, and continuous improvement. Currently, I work as a Senior Software Engineer at Mercator, designing scalable RESTful APIs and backend services, and collaborating in Agile teams to build high-quality solutions. Previously, I have enhanced security features for Visa applications and led middleware development for case management systems, among other roles. I am passionate about software engineering and continuously advancing my skills and knowledge.

Sheeva Afshan

Developer, Programmer, Full Stack Developer, +1

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I am an experienced Java Software Engineer with a PhD and MSc, combining over 10 years of hands-on development experience with academic rigor. I specialize in building robust microservices and APIs using Java 11+, Spring Boot, and modern DevOps tools. I am dedicated to delivering scalable, maintainable solutions with a strong focus on clean architecture, test-driven development, and continuous improvement. Currently, I work as a Senior Software Engineer at Mercator, designing scalable RESTful APIs and backend services, and collaborating in Agile teams to build high-quality solutions. Previously, I have enhanced security features for Visa applications and led middleware development for case management systems, among other roles. I am passionate about software engineering and continuously advancing my skills and knowledge.…I am an experienced Java Software Engineer with a PhD and MSc, combining over 10 years of hands-on development experience with academic rigor. I specialize in building robust microservices and APIs using Java 11+, Spring Boot, and modern DevOps tools. I am dedicated to delivering scalable, maintainable solutions with a strong focus on clean architecture, test-driven development, and continuous improvement. Currently, I work as a Senior Software Engineer at Mercator, designing scalable RESTful APIs and backend services, and collaborating in Agile teams to build high-quality solutions. Previously, I have enhanced security features for Visa applications and led middleware development for case management systems, among other roles. I am passionate about software engineering and continuously advancing my skills and knowledge.

Available to hire

I am an experienced Java Software Engineer with a PhD and MSc, combining over 10 years of hands-on development experience with academic rigor. I specialize in building robust microservices and APIs using Java 11+, Spring Boot, and modern DevOps tools. I am dedicated to delivering scalable, maintainable solutions with a strong focus on clean architecture, test-driven development, and continuous improvement. Currently, I work as a Senior Software Engineer at Mercator, designing scalable RESTful APIs and backend services, and collaborating in Agile teams to build high-quality solutions. Previously, I have enhanced security features for Visa applications and led middleware development for case management systems, among other roles. I am passionate about software engineering and continuously advancing my skills and knowledge.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Senior Software Engineer at Mercator

April 1, 2022 - Present

Design and build scalable RESTful APIs and backend services using Java 11, Spring Boot, and microservice architecture. Implement Test-Driven Development (TDD) practices for code quality and reliability. Use Docker for containerization and GitLab CI/CD pipelines for automated deployment. Work with MongoDB, SQL, and JSON for data modeling and processing in distributed systems. Integrate Drools rules engines for dynamic business logic in HMRC tax compliance. Monitor and troubleshoot production services using Zipkin, Portainer, and Postman. Collaborate closely in Agile/Scrum team through code reviews, planning, and iterative delivery.

Java Developer at Visa

April 1, 2022 - August 21, 2025

Enhanced Visa applications by addressing security vulnerabilities identified by Checkmarx and extended features of the Keycloak identity management system for two-factor authentication (2FA) logins. Worked with Java 8, Spring, Jenkins, Ivy, and J2EE to improve security and functionality.

Software Engineer at Lavatech

December 31, 2021 - August 21, 2025

Led the development and maintenance of middleware integrating the inCase™ platform with case management systems. Used Java, Spring Boot, TDD, Scrum, REST API, SOAP Services, Git, AWS, Postman, and Telescope to build robust middleware solutions supporting platform integration.

Software Engineer at Concentrix (formerly Convergys)

December 31, 2020 - August 21, 2025

Collaborated on developing a large-scale voicemail system with bespoke client features, integrating a Control Center server (PHP) into the main Java product. Automated overnight build systems with shell scripts, Packer, Vagrant, and VMWare vSphere.

Software Engineer at Convergys

July 1, 2016 - August 21, 2025

Developed High Availability features using Java 8, implemented checknet scripts and interfaced with VMWare HA module to enhance system reliability and uptime.

Research Associate at The University of Sheffield

July 1, 2013 - August 21, 2025

Led a collaborative research project with University College London, Berner & Mattner, Motorola, and Sogeti UK Limited. Developed string test data generation techniques using meta-heuristic approaches and natural language processing with the aim to improve software testing processes.