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Dev portfolio of

Chamika Jayathilaka

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GitHub Profile
5+Years Experience
10+Projects Delivered
AWSExpert
Full StackDeveloper
Who Am I

About Me

Software Engineer with 5+ years of industry experience in developing and maintaining scalable software systems.

Skilled across the full stack, with strong expertise in JavaScript, React, Java, and Spring Boot.

Currently contributing as an Associate Technical Lead to the warehouse management system of the world's largest food distributor, Sysco. Started as a Junior Software Engineer, helping to modernize a legacy monolithic application. Now collaborating with cross-functional teams to design and implement new features that have a multi-million-dollar impact.

Frontend

JavaScriptTypeScriptNext.jsReact

Backend

JavaSpring BootPL/SQLKafka

Cloud & Infrastructure

AWSFirebaseLinux

DevOps & Tools

DockerTerraformDatadogJenkins

Database

Oracel SQLMongoDBFirebase Firestore
Professional Path

Work Experience

From a startup intern to engineering scalable solutions for a Fortune 500 giant.

Associate Technical Lead

Sysco Labs | Colombo, Sri Lanka

2024 August - Present
  • Worked with the USA and UK teams to develop new features in both microservices and the frontend application.
  • Creating new AWS infrastructure to support European region expansion.
  • Fixing distributed tracing on existing Java components.
  • Handling production deployments with no downtime.
  • Assist other sub-teams in resolving infrastructure issues and provide guidance on domain-related questions during feature development.
  • Onsite hypercare production support to newly started warehouse in UK.

Senior Software Engineer

Sysco Labs | Colombo, Sri Lanka

2022 August - 2024 August
  • Worked on both warehouse management system modernization project and existing warehouse management application project.
  • Implementing new features in the legacy app, modernized app, and mobile backend that support Android and Windows mobile devices including unit tests, integration tests, and automation tests.
  • Keeping the Java components that support the main application up to date by addressing the production bugs, upgrading the Springboot libraries, implementing new features, testing them, and deploying them on the AWS.
  • Improving the quality of the QA automation suit by implementing reusable data creation classes and improving the stability of the test cases.
  • Worked on DevOps tasks like moving old Concourse jobs to Jenkins and updating terraform scripts.
  • Integrating HashiCorp Vault, a secret management system into the existing application to improve the application security.
  • Providing Level 3 support for the day-to-day operations and Hypercare support to the production deployment when needed.

Software Engineer

Sysco Labs | Colombo, Sri Lanka

2021 March - 2022 July
  • Worked on the warehouse data transfer project and warehouse management system modernization project.
  • Kafka integration to the warehouse data transfer project.
  • API implementation to connect warehouse databases and Kafka consumers and producers.
  • Performance testing with JMeter and optimizing the application.
  • Integrating Datadog to the application to monitor application performance and logs.
  • Developed an email notification system to notify the failures in the production environment.
  • Implemented API endpoints to manipulate the Kafka message queue offset.
  • Implementing automation suit to test data syncing through Kafka queues.
  • Implementing features on the modernization project by gathering the requirements from the legacy codebase.

Software Engineer Intern

Zeno Innovations | Colombo, Sri Lanka

2019 August - 2020 February
  • Involved in requirement gathering, designing, and developing an ERP solution for a Prawn exporter.
  • Handle customer demos and addressed requirement changes after the initial demo
Get in Touch

What’s next? Let’s talk.

Have a project in mind or just want to say hi? Feel free to reach out using the form or through my contact details!

Address

No 79/1/1 Old Road, Pannipitiya, Colombo

Want to know more about me ?

Download my detailed CV to learn about my experience and skills

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