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I am a Senior Software Engineer with 16+ years of hands-on experience delivering enterprise and cloud-based solutions. I specialize in backend platforms built with Java, Spring Boot, and microservices, and I design robust data models using PostgreSQL, TimescaleDB, and PostGIS. I have extensive AWS experience including containerized deployments with ECS and CI/CD automation. Throughout my career I’ve taken ownership of end-to-end delivery—from requirements to deployment and production support—across IoT, Road & Maritime, LMS, ERP, and Telco OSS domains. I value collaborative, high-performing teams, mentoring junior engineers, and continuously advancing through innovative projects and strong software quality practices.…I am a Senior Software Engineer with 16+ years of hands-on experience delivering enterprise and cloud-based solutions. I specialize in backend platforms built with Java, Spring Boot, and microservices, and I design robust data models using PostgreSQL, TimescaleDB, and PostGIS. I have extensive AWS experience including containerized deployments with ECS and CI/CD automation. Throughout my career I’ve taken ownership of end-to-end delivery—from requirements to deployment and production support—across IoT, Road & Maritime, LMS, ERP, and Telco OSS domains. I value collaborative, high-performing teams, mentoring junior engineers, and continuously advancing through innovative projects and strong software quality practices.

Shehan Simen

Back-End Developer, Full Stack Developer, Web Developer, +2

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I am a Senior Software Engineer with 16+ years of hands-on experience delivering enterprise and cloud-based solutions. I specialize in backend platforms built with Java, Spring Boot, and microservices, and I design robust data models using PostgreSQL, TimescaleDB, and PostGIS. I have extensive AWS experience including containerized deployments with ECS and CI/CD automation. Throughout my career I’ve taken ownership of end-to-end delivery—from requirements to deployment and production support—across IoT, Road & Maritime, LMS, ERP, and Telco OSS domains. I value collaborative, high-performing teams, mentoring junior engineers, and continuously advancing through innovative projects and strong software quality practices.…I am a Senior Software Engineer with 16+ years of hands-on experience delivering enterprise and cloud-based solutions. I specialize in backend platforms built with Java, Spring Boot, and microservices, and I design robust data models using PostgreSQL, TimescaleDB, and PostGIS. I have extensive AWS experience including containerized deployments with ECS and CI/CD automation. Throughout my career I’ve taken ownership of end-to-end delivery—from requirements to deployment and production support—across IoT, Road & Maritime, LMS, ERP, and Telco OSS domains. I value collaborative, high-performing teams, mentoring junior engineers, and continuously advancing through innovative projects and strong software quality practices.

Available to hire

I am a Senior Software Engineer with 16+ years of hands-on experience delivering enterprise and cloud-based solutions. I specialize in backend platforms built with Java, Spring Boot, and microservices, and I design robust data models using PostgreSQL, TimescaleDB, and PostGIS. I have extensive AWS experience including containerized deployments with ECS and CI/CD automation.

Throughout my career I’ve taken ownership of end-to-end delivery—from requirements to deployment and production support—across IoT, Road & Maritime, LMS, ERP, and Telco OSS domains. I value collaborative, high-performing teams, mentoring junior engineers, and continuously advancing through innovative projects and strong software quality practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Java Developer at Codeswitch

February 4, 2021 - Present

Senior Java Software Developer at Codeswitch pty ltd

February 1, 2021 - Present

Developed a scalable IoT platform (Venturi startup project) using Java 17/21, Spring Boot micro-services; designed PostgreSQL schemas with TimescaleDB for time-series data and PostGIS for spatial applications; REST API integration with 3rd party services; unit and integration testing; performance optimization for large-scale sensor data; extensive AWS deployment using ECS, S3, CloudFormation, and related services.

Senior Software Developer at ZGuy Software Solutions

October 1, 2019 - October 1, 2020

Remote contractor delivering across multiple clients; modernising legacy Java/Oracle applications, dockerizing deployments, and ensuring timely project delivery; developed unit and integration tests; frontend work with NodeJS, React, TypeScript and JSP.

Founder/Developer at Trevolin

January 1, 2018 - February 1, 2021

Founded and developed Trevolin, an online platform connecting travelers; backend API built with Java 11, Spring Boot; SQL Azure database; frontend with Nuxt/Vue.js; hosted on Microsoft Azure with DevOps workflows; achieved 10,000+ registered users before travel restrictions reduced usage.

Senior Java Software Developer at Clui pty ltd

January 1, 2014 - July 1, 2019

Led design and development for a cloud-based LMS; implemented RESTful services and background jobs; Azure cloud hosting; mentoring junior developers; supported ~1 million end users.

Senior Java Developer at Clarity Services pty ltd

August 1, 2010 - October 1, 2013

Telco OSS applications development; backend and frontend using Ext-GWT; led two Java web applications (Network Discovery and Job Scheduler); Agile (Scrum/Kanban); mentoring juniors.

Software Engineer at Itree pty ltd

March 1, 2007 - August 1, 2010

Design and development of Java web-based and stand-alone applications for NSW and SA government agencies; projects included Heavy Vehicle Notice System, Intelligent Access Compliance Database, E-Bus SOAP Web Services, Lotus Notes-Oracle Sync.

SQL Developer, QA Analyst at Clarity International pty ltd

October 1, 2005 - March 1, 2007

Developed Oracle PL/SQL scripts for test cases; managed test repository and documentation; performed integration and rigorous testing prior to major releases.

Software Engineer at Industrial & Financial Systems (IFS) R & D Ltd

March 1, 2004 - September 1, 2005

Developed Finance, Manufacturing, and Distribution modules in IFS ERP; mentored new graduates; technologies included PL/SQL, Oracle, and Centura.