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I am ARUL NAGARAJAN, a Technical Lead and Senior Full-Stack AI Developer based in Calgary, Canada. I have 13+ years of delivering scalable enterprise platforms, AI-driven automation systems, and cloud-native applications across FinTech, ERP, SaaS, and Government sectors. I enjoy designing AI-enabled workflows with OpenAI, LLMs, LangChain, and RAG to boost efficiency and reduce manual work. I lead cross-functional teams, mentor engineers, and partner with international clients including Wagepoint, Emirates NBD Bank, Qatar Airways, and AMP Insurance to turn complex problems into practical, measurable outcomes.…I am ARUL NAGARAJAN, a Technical Lead and Senior Full-Stack AI Developer based in Calgary, Canada. I have 13+ years of delivering scalable enterprise platforms, AI-driven automation systems, and cloud-native applications across FinTech, ERP, SaaS, and Government sectors. I enjoy designing AI-enabled workflows with OpenAI, LLMs, LangChain, and RAG to boost efficiency and reduce manual work. I lead cross-functional teams, mentor engineers, and partner with international clients including Wagepoint, Emirates NBD Bank, Qatar Airways, and AMP Insurance to turn complex problems into practical, measurable outcomes.

ARUL NAGARAJAN

Full Stack Developer, Web Developer, Back-End Developer, +3

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I am ARUL NAGARAJAN, a Technical Lead and Senior Full-Stack AI Developer based in Calgary, Canada. I have 13+ years of delivering scalable enterprise platforms, AI-driven automation systems, and cloud-native applications across FinTech, ERP, SaaS, and Government sectors. I enjoy designing AI-enabled workflows with OpenAI, LLMs, LangChain, and RAG to boost efficiency and reduce manual work. I lead cross-functional teams, mentor engineers, and partner with international clients including Wagepoint, Emirates NBD Bank, Qatar Airways, and AMP Insurance to turn complex problems into practical, measurable outcomes.…I am ARUL NAGARAJAN, a Technical Lead and Senior Full-Stack AI Developer based in Calgary, Canada. I have 13+ years of delivering scalable enterprise platforms, AI-driven automation systems, and cloud-native applications across FinTech, ERP, SaaS, and Government sectors. I enjoy designing AI-enabled workflows with OpenAI, LLMs, LangChain, and RAG to boost efficiency and reduce manual work. I lead cross-functional teams, mentor engineers, and partner with international clients including Wagepoint, Emirates NBD Bank, Qatar Airways, and AMP Insurance to turn complex problems into practical, measurable outcomes.

Available to hire

I am ARUL NAGARAJAN, a Technical Lead and Senior Full-Stack AI Developer based in Calgary, Canada. I have 13+ years of delivering scalable enterprise platforms, AI-driven automation systems, and cloud-native applications across FinTech, ERP, SaaS, and Government sectors.

I enjoy designing AI-enabled workflows with OpenAI, LLMs, LangChain, and RAG to boost efficiency and reduce manual work. I lead cross-functional teams, mentor engineers, and partner with international clients including Wagepoint, Emirates NBD Bank, Qatar Airways, and AMP Insurance to turn complex problems into practical, measurable outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Technical Lead / Senior Developer at Calnetic

May 1, 2023 - November 21, 2025

Technical Lead / Senior Developer responsible for full-stack development and maintenance of websites, APIs, and Windows services. Led integration with external APIs, webhook-based systems, and automated background services for notifications, data synchronization, and payment verification. Managed hosting and deployments for high-availability systems and integrated GoHighLevel, OnceHub, ActiveCampaign, and Heymarket for user management. Engaged in feature delivery and production support across Services, .NET Web API, Windows Services, and MS SQL.

Technical Lead / Senior Developer at NOL (North Online)

April 30, 2023 - April 30, 2023

Technical Lead / Senior Developer for AMP Australia (Insurance, Home Loan, Investment). Designed and developed web services, UI, and database logic; implemented .NET Core, Azure APIs, React MVC; built Azure-based cloud services and DevOps workflow; integrated OAuth2, Postman, and third-party APIs for automation and scalability.

Senior Developer / Technical Lead at TeleApps India Pvt Ltd

December 31, 2021 - December 31, 2021

Led multiple client projects including Emirates NBD Transaction Manager and other government/enterprise deployments. Responsibilities included team leadership, API design and development, MVC/React UI, business and data logic, documentation, and bug fixes. Coordinated with clients for requirements, delivered code, and ensured quality across Windows/Web platforms.

Senior Developer at Plintron

March 31, 2015 - March 31, 2015

Worked on My Accounts-Customer web portal for Lyca Mobile UK. Roles included DB design, API design, and backend development using ASP.NET MVC, XML/JavaScript, and cloud APIs. Contributed to REST API creation and backend logic to support telecom services.

Developer at Sriram Financial Company

October 31, 2013 - October 31, 2013

Worked on customer portal for SHFL including My Accounts, Jeweller Finance, and related modules. Responsibilities covered application and data logic development, loan and repayment workflows, and reporting. Engaged in DB design, API design, and maintenance.

Technical Lead / Senior Full-Stack AI Developer at Calnetic Inv.

May 1, 2023 - Present

Led development of AI-enabled SaaS platforms, automation systems, and cloud-native microservices architectures for enterprise clients across Canada and the United States. Architected an AI-driven ERP automation platform for Daily Seafood, reducing manual order processing by 80%. Built an AI email processing engine with LangChain to categorize, extract, and prioritize inquiries. Implemented webhook-based integrations with GoHighLevel, ActiveCampaign, OnceHub, and Heymarket. Developed financial analytics dashboards integrating QuickBooks and Paycor APIs and built scalable .NET Core microservices supported by Azure Functions.

Technical Lead / Senior Developer at ADK Rage

January 1, 2022 - April 1, 2023

Designed scalable architecture using .NET Core, React, Azure, and SQL Server. Built secure APIs for customer and agent portals. Implemented cross-platform RESTful APIs using JAX-RS, enabling seamless integration across multiple systems. Established DevOps CI/CD pipelines and led SDLC-compliant delivery for enterprise solutions.

Technical Lead / Senior Developer at TeleApps India Pvt Ltd

March 1, 2015 - December 1, 2021

Developed enterprise platforms for banking, telecom, aviation, and government sectors. Led Emirates NBD ATM Administration Platform and delivered cross-system integrations with OAuth2, Web APIs, and MVC patterns. Implemented database models, stored procedures, and robust DevOps pipelines.

Senior Software Developer at Plintron

October 1, 2013 - March 1, 2015

D eveloped telecom customer portal for Lyca Mobile UK, built REST APIs for subscriber services, integrated telecom payment gateways, and delivered reporting modules and backend services.

Software Developer at Sriram Financial Corporation

December 1, 2011 - October 1, 2013

Developed financial systems supporting loan processing and repayment management, including loan modules and reporting tools.