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I’m an experienced software engineer (5+ years) focused on building enterprise SaaS platforms, cloud infrastructure, and data pipelines for clients in the UK and Sweden. I work hands-on with C#/.NET, Python, and modern frontend/backend patterns, and I’ve also led technical delivery for cloud-native systems and analytics solutions. I enjoy turning complex data workflows into reliable, faster pipelines—recently migrating from Azure Data Factory to Microsoft Fabric and modernizing transformations with dbt. I’m currently pursuing a Master of Computer Science at Algoma University in Brampton, and I’m available for part-time, contract, and freelance work across software development, DevOps, cloud, and data engineering (remote, hybrid, or on-site in the GTA).…I’m an experienced software engineer (5+ years) focused on building enterprise SaaS platforms, cloud infrastructure, and data pipelines for clients in the UK and Sweden. I work hands-on with C#/.NET, Python, and modern frontend/backend patterns, and I’ve also led technical delivery for cloud-native systems and analytics solutions. I enjoy turning complex data workflows into reliable, faster pipelines—recently migrating from Azure Data Factory to Microsoft Fabric and modernizing transformations with dbt. I’m currently pursuing a Master of Computer Science at Algoma University in Brampton, and I’m available for part-time, contract, and freelance work across software development, DevOps, cloud, and data engineering (remote, hybrid, or on-site in the GTA).

AJANTHY JAYARAJAN

Software Engineer, DevOps Developer, Cloud Developer, +4

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I’m an experienced software engineer (5+ years) focused on building enterprise SaaS platforms, cloud infrastructure, and data pipelines for clients in the UK and Sweden. I work hands-on with C#/.NET, Python, and modern frontend/backend patterns, and I’ve also led technical delivery for cloud-native systems and analytics solutions. I enjoy turning complex data workflows into reliable, faster pipelines—recently migrating from Azure Data Factory to Microsoft Fabric and modernizing transformations with dbt. I’m currently pursuing a Master of Computer Science at Algoma University in Brampton, and I’m available for part-time, contract, and freelance work across software development, DevOps, cloud, and data engineering (remote, hybrid, or on-site in the GTA).…I’m an experienced software engineer (5+ years) focused on building enterprise SaaS platforms, cloud infrastructure, and data pipelines for clients in the UK and Sweden. I work hands-on with C#/.NET, Python, and modern frontend/backend patterns, and I’ve also led technical delivery for cloud-native systems and analytics solutions. I enjoy turning complex data workflows into reliable, faster pipelines—recently migrating from Azure Data Factory to Microsoft Fabric and modernizing transformations with dbt. I’m currently pursuing a Master of Computer Science at Algoma University in Brampton, and I’m available for part-time, contract, and freelance work across software development, DevOps, cloud, and data engineering (remote, hybrid, or on-site in the GTA).

Available to hire

I’m an experienced software engineer (5+ years) focused on building enterprise SaaS platforms, cloud infrastructure, and data pipelines for clients in the UK and Sweden. I work hands-on with C#/.NET, Python, and modern frontend/backend patterns, and I’ve also led technical delivery for cloud-native systems and analytics solutions.

I enjoy turning complex data workflows into reliable, faster pipelines—recently migrating from Azure Data Factory to Microsoft Fabric and modernizing transformations with dbt. I’m currently pursuing a Master of Computer Science at Algoma University in Brampton, and I’m available for part-time, contract, and freelance work across software development, DevOps, cloud, and data engineering (remote, hybrid, or on-site in the GTA).

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Work Experience

Associate Technical Lead – Software, Cloud & Data Engineering at Calcey Technologies LLC, Singapore

January 1, 2026 - Present

Led technical design and architecture for enterprise SaaS and cloud-native platforms, mentoring a team of 4 engineers. Migrated enterprise data pipelines from Azure Data Factory to Microsoft Fabric and replaced stored procedure transformations with dbt, reducing run time from 9 hours to about 1 hour. Built 130+ dbt models with extensive automated testing and delivered Microsoft Fabric pipelines for analytics. Integrated Dynamics 365 Business Central data into Microsoft Fabric (Lakehouse/Warehouse/OneLake) and delivered Power BI reporting. Improved application performance through SQL optimization, Redis caching, and refactoring legacy stored procedures and data access code; supported ERP customizations, load testing, and deployment automation.

Senior Software Engineer at Calcey Technologies LLC, Singapore

January 1, 2024 - December 1, 2025

Developed enterprise SaaS applications using C#, ASP.NET Core/MVC, Entity Framework Core, SQL Server, and REST APIs. Built event-driven distributed systems on AWS using Lambda, SNS, SQS, RabbitMQ, and MassTransit; provisioned infrastructure via AWS CDK and CloudFormation. Designed secure backend services using Clean Architecture, SOLID principles, and CQRS. Resolved complex production issues through log analysis, SQL optimization, Redis caching, and infrastructure improvements; participated in architecture discussions, code reviews, sprint planning, and mentorship.

Software Engineer at Calcey Technologies, Sri Lanka

July 1, 2021 - December 1, 2023

Developed enterprise web applications using C#, ASP.NET Core/MVC, Entity Framework Core, React, SQL Server, and REST APIs. Delivered new features, fixed production defects, and optimized performance across design, implementation, testing, deployment, and production support. Contributed to code reviews, technical documentation, and continuous improvement initiatives.

Software Engineering Intern at WSO2 (Pvt) Ltd, Sri Lanka

January 1, 2020 - June 1, 2020

Built backend features for WSO2 Streaming Integrator using Java and Siddhi, supporting requirement analysis, testing, and code reviews. Published technical articles on Siddhi and streaming integration on Medium.