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I am Vinesh Kumar, a Senior Java Developer with over 12 years of experience architecting and delivering scalable, high-performance systems across telecommunications, healthcare, retail, and fintech. I specialize in Java and Python, and I design cloud-native microservices and event-driven architectures that are reliable, maintainable, and scalable. I thrive in agile environments, leading teams, mentoring developers, and driving technical innovation. I am passionate about clean code, strong testing, and delivering cloud solutions on AWS and Google Cloud that drive real business value.…I am Vinesh Kumar, a Senior Java Developer with over 12 years of experience architecting and delivering scalable, high-performance systems across telecommunications, healthcare, retail, and fintech. I specialize in Java and Python, and I design cloud-native microservices and event-driven architectures that are reliable, maintainable, and scalable. I thrive in agile environments, leading teams, mentoring developers, and driving technical innovation. I am passionate about clean code, strong testing, and delivering cloud solutions on AWS and Google Cloud that drive real business value.

Vinesh Kumar

Full Stack Developer, Back-End Developer, Web Developer, +6

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I am Vinesh Kumar, a Senior Java Developer with over 12 years of experience architecting and delivering scalable, high-performance systems across telecommunications, healthcare, retail, and fintech. I specialize in Java and Python, and I design cloud-native microservices and event-driven architectures that are reliable, maintainable, and scalable. I thrive in agile environments, leading teams, mentoring developers, and driving technical innovation. I am passionate about clean code, strong testing, and delivering cloud solutions on AWS and Google Cloud that drive real business value.…I am Vinesh Kumar, a Senior Java Developer with over 12 years of experience architecting and delivering scalable, high-performance systems across telecommunications, healthcare, retail, and fintech. I specialize in Java and Python, and I design cloud-native microservices and event-driven architectures that are reliable, maintainable, and scalable. I thrive in agile environments, leading teams, mentoring developers, and driving technical innovation. I am passionate about clean code, strong testing, and delivering cloud solutions on AWS and Google Cloud that drive real business value.

Available to hire

I am Vinesh Kumar, a Senior Java Developer with over 12 years of experience architecting and delivering scalable, high-performance systems across telecommunications, healthcare, retail, and fintech. I specialize in Java and Python, and I design cloud-native microservices and event-driven architectures that are reliable, maintainable, and scalable.

I thrive in agile environments, leading teams, mentoring developers, and driving technical innovation. I am passionate about clean code, strong testing, and delivering cloud solutions on AWS and Google Cloud that drive real business value.

Skills

Experience Level

Expert

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Intermediate

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Work Experience

Senior Engineer at Macquarie Bank

June 1, 2025 - Present

Leading Private Bank Salesforce Integration initiatives across the engineering team; Delivered Custom Actions Integration with Salesforce for enterprise workflows; Optimized Salesforce Sync processes for enterprise-scale data consistency.

Senior API Developer at Optus

May 1, 2023 - May 31, 2025

Led backend architecture for Fibre Connect and Speed Packs product upgrades; orchestrated cross-functional teams to migrate monolithic applications to AWS-based microservices; improved system scalability and reduced downtime by 40%; mentored 5+ junior developers and drove clean code practices.

Senior Software Engineer at BoozeBud

May 1, 2021 - May 31, 2023

Developed integrations with Fulfilio, Australia Post, and Unleashed to automate logistics workflows; implemented AWS Fraud Detector, reducing fraudulent transactions by 35%; designed and launched Booze Plus subscription system contributing to $2M+ revenue growth.

Technical Lead at Zimmer Biomet

May 1, 2017 - May 31, 2021

Architected and led development of Surgery Management System serving 500+ medical professionals; reduced production defects by 60% through TDD, monitoring, and enhanced testing frameworks; spearheaded AWS cloud adoption and migration from monolith to microservices; managed vendor teams and facilitated engineering workshops.

Senior Software Engineer at Accenture

January 1, 2013 - April 30, 2017

Built scalable financial applications for tier-1 banking clients; enforced TDD and peer reviews reducing bug leakage; pioneered Docker containerization reducing deployment time by 70%; automated internal tooling and workflows saving 10+ hours weekly.

Senior Engineer (Contract) at Macquarie Bank

June 1, 2025 - Present

Leading Private Bank Salesforce Integration initiatives across the engineering team. Delivered Custom Actions Integration with Salesforce for enterprise workflows. Optimized Salesforce Sync processes for enterprise-scale data consistency.

Senior API Developer (Contract) at Optus

May 1, 2023 - May 31, 2025

Led backend architecture for Fibre Connect and Speed Packs product upgrades. Orchestrated cross-functional teams to migrate monolithic applications to AWS-based microservices. Improved system scalability and reduced downtime by 40% through architectural improvements. Optimized external API response times through refactoring and strategic caching layers. Mentored 5+ junior developers and drove adoption of clean code practices across the team.

Technical Lead at Zimmer Biomet

August 1, 2018 - May 2, 2021

Architected and led the Surgery Management System and MOVE application. Improved testing, monitoring, and TDD practices; drove cloud adoption (AWS) for scalability and cost efficiency; conducted design pattern workshops and guided sprint planning.

Senior Software Engineer at Glamazon

May 1, 2017 - August 1, 2018

Led migration from monolith to AWS-based microservices, improved system stability and reduced customer issues; managed vendor teams and enforced code quality standards.

Specialist - Product Development at FIS Global

December 1, 2015 - April 1, 2017

Pioneered containerization with Docker, automated internal tools to save time on tester deployments and knowledge transfer; delivered high-impact features accelerating issue resolution.