Open to opportunities

Balan Sinniah

@balansinniah

Message

Senior .NET and AI engineer specializing in cloud-native API and AI solutions.

Australia

Message

What I'm looking for

I seek roles building cloud-native .NET and AI-driven APIs in secure, collaborative teams with strong engineering practices and opportunities to lead architecture and CI/CD improvements.

I am a seasoned .NET Developer and AI Engineer with deep expertise in .NET 8 (C#), Azure cloud services, and API engineering. I build scalable, secure, performance-driven systems—specializing in RAG, Azure OpenAI integration, distributed systems, and Python automation—while applying SOLID, CQRS and microservices design principles.

I have led migrations, API governance, and CI/CD automation across enterprise environments, delivering production Checkout and Payments APIs, cloud messaging platforms, and legacy modernization projects. I collaborate effectively with architecture and security teams to implement RBAC, APIM, OAuth2/OpenID Connect, and secure deployment practices.

Experience

Work history, roles, and key accomplishments

Current

Professional Consultant

Current

Bunnings

Jan 2025 - Present (9 months)

Implemented Cart Check and Payment processing APIs using BPOINT and delivered Checkout Experience API to production while aligning RBAC, APIM and security design standards with architecture teams.

.NET 8+Azure Functions MediatR OAuth RBAC Azure DevOps API Security

Senior API Developer

AGL

Jan 2024 - Dec 2025 (1 year 11 months)

Upgraded 15 Azure Functions to .NET 8, improved CI/CD pipeline performance with YAML orchestration and strengthened security via RBAC and private endpoints for Comms API projects.

Azure Functions .NET 8+CI CD YAML RBAC

Senior Developer

AEMO

Jan 2023 - Dec 2023 (11 months)

Developed scalable APIs and SQL data pipelines for energy dispatch systems and refactored legacy processes into isolated APIs to improve performance for WEMDE reform.

API Development SQL Server EF Core RabbitMQ DevOps Data Pipelines Performance Optimization

Senior API Developer

AGL

Jul 2022 - Dec 2022 (5 months)

Built self-service backend APIs and implemented search capabilities using Azure Search and Cosmos DB as part of the New Connection project.

Azure Functions Cosmos Azure Search Microservices

Senior Azure Developer

Michael Hills

Jan 2022 - Jul 2022 (6 months)

Developed integration APIs for Ceridian Dayforce and implemented data sync pipelines using Azure Data Factory to streamline HR system integrations.

Azure Data Factory App Services SQL Server Webhooks API Integration Azure Functions

Senior Development Consultant

AGL

Jul 2019 - Dec 2021 (2 years 5 months)

Designed and implemented a cloud messaging platform for SMS consolidation and onboarded enterprise teams into secure APIM-based integrations.

Azure Functions ETL Splunk Messaging

.NET Technical Lead

Bupa

Oct 2015 - Jul 2019 (3 years 9 months)

Led API governance and mentoring, migrated WCF to REST APIs and accelerated insurance product integrations through API onboarding and developer enablement.

.NET SQL Server Apigee Mentoring DevOps

Development Team Lead

Sharewealth Systems

Aug 2009 - Jul 2015 (5 years 11 months)

Led engineering for a global trading platform (SPA3) and developed an internal scripting language for financial indicators to support trading analytics.

MySQL EF Core Team Leadership Product Development