Rajith Alwis
Software Engineering Lead · Application Architect
Melbourne, Australia
About
Software Engineering Lead and Application Architect with 15+ years building secure, large-scale enterprise systems on Azure and AWS. Currently leading a cross-functional engineering squad delivering event-driven microservices platforms used daily by major Australian retailers — hands-on across .NET, Angular and React while coaching and mentoring engineers. Founder of ReceiptRoo, a SaaS product for tradespeople. Strong focus on cloud architecture, identity, DevSecOps, and lifting engineering standards across teams.
What I work with
Languages & frameworks
- .NET / C#
- SQL Server
- Angular
- React
- TypeScript
- Node.js
Architecture
- Microservices
- Event-driven architecture
- CQRS
Cloud & platforms
- Azure
- AWS
- Kubernetes
- Cloud architecture
- Identity & authentication
Enterprise platforms
- Dynamics 365
- Oracle
Practices
- DevSecOps
- CI/CD
- AI-integrated systems
- Modern software engineering
Selected work
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ReceiptRoo
A mobile app for capturing and organising receipts, with AI-powered extraction and structured reporting. Built on AWS serverless and available now on iOS and Android.
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Microsoft full-stack delivery
End-to-end web applications on the .NET stack with Angular or React front-ends, delivered on Azure and integrated with the wider Microsoft ecosystem.
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Kubernetes platform work
Designing and operating containerised workloads on Kubernetes — deployments, ingress, secrets, autoscaling, and observability for production services.
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Dynamics 365 integrations
Integrating Dynamics 365 with bespoke .NET services and external systems via custom plugins, APIs, and event-driven flows.
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Oracle integrations
Integrating .NET applications with Oracle databases and enterprise systems, including data migration and reporting flows.
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DevSecOps initiatives
Embedding security, observability, and automated checks into delivery pipelines across multiple teams.
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Cloud modernisation
Migrating and re-architecting legacy systems to cloud-native designs on AWS and Azure.