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Chamini Heshani

@chaminiheshani

Senior Software Engineer at Trimble Nexala Solutions | Telexar Technologies, optimizing E2M performance and building RESTful services.

Sri Lanka

Message

At Trimble Nexala Solutions | Telexar Technologies, I engineer RESTful backend services and full-stack features for E2M. I improved performance by refactoring legacy code and replacing heavy JPA queries with optimized native database operations.

I also tuned SQL Server query plans and stored procedures to improve throughput and eliminate deadlocks, and resolved memory leaks to improve stability under heavy load. I use Cursor and Claude Code in the development lifecycle and customize Jaspersoft templates for stakeholder reporting.

Previously, I developed Java and Python microservices at BlackSwan Technologies, including Case Management and Custom Entity, and contributed to secure, multi-tenant services. At DigitalX (Pvt) Ltd | Zmessenger, I developed a Data Management Platform and a communication bridge for integrations across external systems.

Experience

Work history, roles, and key accomplishments

Current

Associate Tech Lead

Current

Trimble Nexala Solutions | Telexar Technologies

May 2024 - Present (2 years 5 months)

Engineered RESTful backend services and delivered full-stack features using the Play framework. Enhanced application performance by refactoring legacy code and optimizing database operations.

Play Framework REST APIs SQL Server JProfiler Cursor Claude Code Jaspersoft Code Review

Senior Software Engineer

Trimble Nexala Solutions | Telexar Technologies

Sep 2022 - May 2024 (1 year 8 months)

Led Java backend development for the Trimble Rail project, delivering features and bug fixes for E2M and Equinox systems. Improved API performance and coordinated releases with QA and DevOps.

Java Spring Boot REST APIs Junit JaCoCo Test Driven Development Object Oriented Programming

Senior Software Engineer

BlackSwan Technologies

Jan 2022 - Sep 2022 (8 months)

Architected and developed Case Management and Custom Entity microservices in Python with FastAPI. Owned backend reliability, performance tuning, and API design for critical platform microservices.

Python fastAPI REST APIs Microservices Agile Mentorship Architecture Reviews

Backend Developer

BlackSwan Technologies

Jan 2021 - Jan 2022 (1 year)

Implemented security enhancements and RBAC in Ehub-rest following OWASP guidelines. Contributed to multiple microservices and integrated AWS services for document storage and event-driven processing.

Java Spring MVC Python fastAPI OWASP RBAC S3 AWS Lambda Caching Agile

Software Engineer

DigitalX (Pvt) Ltd | Zmessenger

Mar 2019 - Jan 2021 (1 year 10 months)

Researched and developed a Data Management Platform for enterprise use, focusing on scalable backend architecture and data pipelines. Used Protobuf and gRPC for inter-service communication.