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I am an energetic software engineer with experience in commercial application development. I am a self-directed, hardworking professional with strong problem-solving skills. I am actively seeking a challenging opportunity to be an immersive contributor and to apply my skills across backend and frontend development in a collaborative team.…

Tharsika Sivakumaran

Back-End Developer, Full Stack Developer, Web Developer, +3

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I am an energetic software engineer with experience in commercial application development. I am a self-directed, hardworking professional with strong problem-solving skills. I am actively seeking a challenging opportunity to be an immersive contributor and to apply my skills across backend and frontend development in a collaborative team.…

Available to hire

I am an energetic software engineer with experience in commercial application development. I am a self-directed, hardworking professional with strong problem-solving skills.

I am actively seeking a challenging opportunity to be an immersive contributor and to apply my skills across backend and frontend development in a collaborative team.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Tamil

Advanced

Sinhala, Sinhalese

Advanced

Work Experience

Software Engineer at Codelantic Pvt Ltd

November 1, 2023 - Present

Designed and developed backend services using Java, Spring Boot and microservices; built RESTful APIs, API Gateway, and integrated with MySQL, PostgreSQL, and MongoDB. Implemented messaging with RabbitMQ and Kafka, API integration with OpenFeign, and used Maven, Eureka, and Jasper. Secured applications with Keycloak and JWT, performed unit/integration testing with JUnit/Mockito, and maintained CI/CD with Flyway. Monitored Kubernetes pods and logs for health, and collaborated with cross-functional teams in an Agile environment to deliver high-quality features.

Associate Software Engineer at Codelantic Pvt Ltd

November 1, 2023 - Present

Designed and developed RESTful APIs in a microservices-oriented architecture and bug fixes. Implemented a reporting module for invoices, budgets, and summaries based on dynamic user requests. Implemented unit and integration testing (JUnit, Mockito). Maintained clean and high-quality code through code reviews in an agile environment. Used Flyway for database migrations. Integrated microservices using Feign Client for communication. Monitored Kubernetes pod health and logs; focused on clean, maintainable code with SonarQube analysis.

Software Engineer Intern at Invicta Innovations Pvt Ltd

October 1, 2023 - October 19, 2025

Contributed to the Currency Transaction Platform, developing a secure currency exchange flow with 2FA; supported admin/user management, deals, and reporting. Gained hands-on experience with Java 8, Spring Boot, API Gateway, JWT, JPA, OpenFeign, Maven, MySQL, Kubernetes, Prometheus, Grafana, and Docker. Worked on Invicta Test Automation Framework (ITAF) and a Store Management System project involving product management, inventory tracking, supplier coordination, order processing, and billing.

Software Engineer Intern at Invicta Innovations Pvt Ltd

October 1, 2023 - October 19, 2025

Gained hands-on experience in Java, Spring Boot, RESTful APIs, microservices, MySQL, MongoDB, Kubernetes, Prometheus, Grafana; contributed to an inventory management system, real-time reporting, and supplier coordination; performed bug fixes, testing, and refactoring; replaced manual tools with real-time reporting and integrated systems to improve efficiency.