Senior Software Engineer

Open to new opportunities

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SAMINTHA kaveesh

~7 Years Experience

I’m a Senior Software Engineer with nearly seven years of experience building scalable microservices using Java and Spring Boot. I focus on designing reliable systems that handle real-world complexity.
I’m currently exploring other ecosystems such as Go, C#, .NET, Swift, and Rust to broaden my perspective, with a strong interest in strengthening my architectural thinking and distributed system design at scale.

Java Spring Boot Kafka AWS React Docker

Technical Specialist (Software Engineering) Jul 2024 - Oct 2025

Wiley (John Wiley & Sons, Inc.) Colombo, Sri Lanka

Drove technical direction for Java and Spring Boot solutions within Wiley's Access & License Management (ALM) system.

Engineered high-performance Java 21 and Spring Boot solutions for Wiley’s critical Access & License Management (ALM) system, ensuring seamless access for millions of global users and licenses.
Architected an E-Commerce parallel order processing system leveraging Spring Reactive Streams and Kafka for asynchronous events, significantly improving throughput and reducing latency.
Developed a standardized, efficient licensing model featuring RESTful API interfaces and an event-driven backend, prioritizing high availability and scalability while collaborating with senior architects.
Resolved high-priority production incidents within strict SLAs by utilizing Splunk for distributed log analysis and debugging Docker/Kubernetes container environments.
Mentored a team of 4 engineers through complex challenges, improving team velocity and code quality, while driving major production releases using Elasticsearch and Kibana.

Engineered a Helm-based Proof of Concept to deploy multiple instances of the same service within a single environment, leveraging distinct environment variables to drive differentiated behaviors while automating the deployment workflow via ArgoCD.

Java 21 Spring Boot REST React Kafka Docker Kubernetes CI/CD AWS (ECS, EKS, S3) Spring Cloud Hibernate JUnit/Mockito Maven Git/GitHub Jenkins Drools SonarQube Dynatrace Grafana Contrast Security JIRA

Senior Software Engineer Jul 2022 - Jun 2024

Wiley (John Wiley & Sons, Inc.) Colombo, Sri Lanka

Led design and modernization of Java and Spring Boot services for Wiley's ALM platform.

Executed modernization of the Java ecosystem, upgrading microservices to JDK 21 and migrating Spring Boot to 3.x, reducing technical debt and security vulnerabilities while managing Jenkins CI/CD pipelines.
Led a cross-functional team of 4 engineers, mentoring them to deliver high-impact solutions.
Implemented a redundant license management system in collaboration with architects, impacting millions of licenses valued up to half a million dollars each while serving as subject matter expert.
Developed an interactive React and JavaScript frontend for the Admin dashboard, enabling efficient management of licenses.
Drove major production releases, utilizing Elasticsearch/Kibana to rapidly resolve issues within production windows, minimizing disruption and ensuring seamless access for millions of users.

Engineered a custom role-based access control (RBAC) system by aggregating Azure AD roles with client-specific permissions, mapping them into Keycloak ID and Access Tokens, and developing RESTful APIs for streamlined role administration.
Architected event-driven microservices communication leveraging Apache Kafka, facilitating decoupled interactions and enhancing system scalability and resilience across the architecture.

Java 17 Spring Boot 3 JDK 21 REST React Kafka Docker AWS (ECS, RDS, S3) CI/CD Jenkins Spring Cloud Cloudflare Hibernate JUnit Mockito Maven Git GitHub Drools SonarQube Dynatrace Splunk Contrast Security JIRA

Software Engineer Apr 2021 - Jul 2022

Wiley (John Wiley & Sons, Inc.) Colombo, Sri Lanka

Implemented OIDC/Keycloak integrations and major releases for Wiley's platform.

Developed solutions to improve Wiley’s ALM system, managing millions of global users’ access and identities using Java and Spring Boot, while enhancing the React/JavaScript frontend for user login and registration.
Implemented secure authentication solutions based on OIDC and OAuth2.0 standards in Keycloak, integrating seamlessly with various enterprise IDPs.
Delivered a company-wide Microsoft Azure AD integration in collaboration with architects, resolving client issues and improving authentication reliability for Wiley employees.

Drove major production releases by facilitating Change Advisory Board (CAB) meetings and communicating with senior stakeholders to ensure seamless platform updates for millions of users and thousands of institutional customers.
Investigated instance statuses, anomalies, and performance with Dynatrace and worked on performance improvement on several Spring Boot applications deployed to Docker.
Designed and enhanced the user login and registration front-end system using ReactJS and FreeMarker.
Developed and presented at a Hackathon and Innovation Week on Keycloak access with face recognition, location-based database, fat JARs and thin JARs on Docker, and OpenCV image processing.

Java 8/11 Spring Boot REST React Kafka AWS (RDS, EC2, S3) CI/CD Jenkins Spring Security Spring Cloud LDAP Active Directory (Azure AD) Red Hat SSO KeyCloak OAuth2 OpenID Connect Cloudflare Hibernate JUnit Mockito Maven Git GitHub SonarQube Dynatrace Grafana Contrast Security JIRA

Associate Software Engineer Apr 2019 - Apr 2021

Pearson Colombo, Sri Lanka

Developed Java and Spring Boot solutions for global education products.

Developed Java and Spring Boot solutions on a cross-functional team delivering advanced educational products to the global education sector, impacting over 160 million users worldwide.
Integrated leading LMS applications including Moodle, Canvas, D2L Brightspace, and Blackboard utilizing the LTI Standard for seamless interoperability.
Resolved critical production issues, ensuring uninterrupted access for millions of users across various institutions.

Monitored applications during peak times using New Relic, Grafana, and Kibana, while actively investigating real time production issues and collaborating with the team to resolve them.

Java 8 Spring Boot JUnit Mockito Maven BitBucket GitLab Jenkins SonarQube NewRelic Checkmarx JIRA

Freelance Full Stack Developer Nov 2018 - Apr 2019

LyricX Colombo, Sri Lanka

Built a Java, Spring Boot, and Angular lyric viewer application with real-time sharing.

Architected and developed a collaborative, real-time song lyrics viewer using Java/Spring Boot for the backend and Angular/Android for the frontend, leveraging Google Firebase for real-time data synchronization and deployed on AWS, leading system design and UX improvements to deliver smooth, high-performance solutions.

Integrated a high-performance search engine leveraging Apache Lucene, enabling instantaneous, full-featured text search capabilities across songs, lyrics, artists, and albums.
Created interactive UI and UX with Adobe XD and worked on ER diagrams and database designs.
Conducted design discussions and reviews with the client.

Java 8 Spring Boot Angular Android Google Firebase AWS RDS REST Lucene Hibernate Maven Git Adobe XD

Software Engineering Trainee Jan 2017 - Jul 2017

CodeGen International Colombo, Sri Lanka

Built Java and Angular features for a multi-tenant restaurant menu and order system as an intern.

Engineered and deployed a multi-tenant order management system using Java, Spring Boot, Angular, and Android, overseeing the complete development lifecycle from design to deployment, while gaining hands-on experience in data modeling, database design, and system architecture to ensure a scalable and secure multi-tenant infrastructure.

Developed an Android application to manage orders with QR codes, along with an Angular application for customers to place orders in real time.
Gained experience using AWS RDS (MySQL) and Google Firebase Auth, deploying on AWS Elastic Beanstalk and AWS S3 for the SPA.

Java 8 Spring Boot Hibernate AWS (RDS, S3, Elastic Beanstalk) Maven Angular Git Android Google Firebase

AWS Certified Solutions Architect – Associate 2021-2024

Amazon Web Services

Architecture patterns, cost optimization, and secure cloud foundations.
Validation: LGKL7S4JLFQ4Q1KH

Advanced React May 2024

Senior Software Engineer

~7 Years Experience

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