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I have over 8 years of career experience in software engineering developing enterprise level applications. I am proficient in the Java ecosystem and related frameworks, specializing in microservice architecture and system integration. I enjoy collaborating with teams and am committed to continuous learning and driving technical excellence. Throughout my career, I have worked with diverse clients including banks and large service providers across Asia Pacific, continuously evolving my skills in backend development, cloud technologies, and microservices. I am passionate about delivering high-quality solutions and supporting smooth deployments and testing phases for large scale projects.…I have over 8 years of career experience in software engineering developing enterprise level applications. I am proficient in the Java ecosystem and related frameworks, specializing in microservice architecture and system integration. I enjoy collaborating with teams and am committed to continuous learning and driving technical excellence. Throughout my career, I have worked with diverse clients including banks and large service providers across Asia Pacific, continuously evolving my skills in backend development, cloud technologies, and microservices. I am passionate about delivering high-quality solutions and supporting smooth deployments and testing phases for large scale projects.

Gayan Sanjeewa

Developer, Back-End Developer, Full Stack Developer, +1

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I have over 8 years of career experience in software engineering developing enterprise level applications. I am proficient in the Java ecosystem and related frameworks, specializing in microservice architecture and system integration. I enjoy collaborating with teams and am committed to continuous learning and driving technical excellence. Throughout my career, I have worked with diverse clients including banks and large service providers across Asia Pacific, continuously evolving my skills in backend development, cloud technologies, and microservices. I am passionate about delivering high-quality solutions and supporting smooth deployments and testing phases for large scale projects.…I have over 8 years of career experience in software engineering developing enterprise level applications. I am proficient in the Java ecosystem and related frameworks, specializing in microservice architecture and system integration. I enjoy collaborating with teams and am committed to continuous learning and driving technical excellence. Throughout my career, I have worked with diverse clients including banks and large service providers across Asia Pacific, continuously evolving my skills in backend development, cloud technologies, and microservices. I am passionate about delivering high-quality solutions and supporting smooth deployments and testing phases for large scale projects.

Available to hire

I have over 8 years of career experience in software engineering developing enterprise level applications. I am proficient in the Java ecosystem and related frameworks, specializing in microservice architecture and system integration. I enjoy collaborating with teams and am committed to continuous learning and driving technical excellence.

Throughout my career, I have worked with diverse clients including banks and large service providers across Asia Pacific, continuously evolving my skills in backend development, cloud technologies, and microservices. I am passionate about delivering high-quality solutions and supporting smooth deployments and testing phases for large scale projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Senior Java Developer at Aleph-Labs

October 1, 2024 - Present

Working with UOB Bank Singapore, I collaborate closely with system analysts, functional business analysts, technical managers, and testers to deliver the OCN project on time with business alignment. My responsibilities include designing and developing new features for multiple Java-based microservices using Spring Boot and REST APIs, leveraging feature toggles and trunk-based development. I enabled smooth and controlled deployments via CI/CD pipelines and feature flagging, supporting multi-country releases (Malaysia, Singapore, Hong Kong). Led key development efforts to decouple microservices from direct database dependencies, improving modularity and maintainability. I also support SIT and UAT testing phases and manage production incidents adhering to Jira and SLA standards while working with DevOps and QA teams for deployment readiness.

Senior Backend/Java Developer at DHL Information Services (Asia-Pacific) Sdn. Bhd

September 1, 2024 - August 22, 2025

Developed highly available and scalable microservices according to business requirements, maintained SOAP services, and handled change requests. Created and maintained CI/CD pipelines for OpenShift and AKS cloud environments. Delivered knowledge transfer sessions and guided new joiners on technical topics. Responsible for the performance testing and benchmarking new microservices. Collaborated closely with business analysts and technical architects to ensure adherence to both business logic and technical standards.

Senior Software/Java Engineer at Aeturnum Lanka (Pvt) Ltd

March 1, 2023 - August 22, 2025

Worked on multiple client projects including MODIFI, FINCH MONEY, and an internal project TIMEMATE. Responsibilities included code refactoring of microservices, implementing and maintaining third-party API integrations, collaborating with product managers to gather requirements and plan sprints, developing unit tests using JUnit and Mockito, bug fixes, and creating internal authentication mechanisms using Spring Security. Provided guidance to junior engineers and created base microservice projects.

Software Engineer at Epic Technology Group

December 1, 2021 - August 22, 2025

Engaged in agile development of financial technology solutions for banks in Sri Lanka including NDB NEOS mobile banking. Developed core components, integrating with core banks and content management systems using ISO8583 messaging. Developed REST APIs, involved in unit testing, and worked on digital banking solutions for CDB Bank. Also contributed to Terminal Line Encryption admin panel development using Struts2 and Hibernate. Responsibilities included bug fixes and unit testing.

Associate Software Engineer / Trainee Software Engineer at Boswin Group

November 1, 2017 - August 22, 2025

Started career involved in R&D and PHP development. Learned AngularJS and participated in some Android and Ionic app development.