Sahan Singappulige - Senior Lead Full Stack Developer & Technical Lead

About MeA
ExpertiseE
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ResumeR
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About Me

Senior Lead Full Stack Developer | Technical Lead

C# / .NET / ASP.NET Core
React / Angular
JavaScript / Node.js / Python
SQL Server / SSIS / Oracle
PostgreSQL / MongoDB
Azure / AWS / Google Cloud
Docker / Kubernetes / CI/CD
REST APIs / Microservices
Technical Leadership / Mentoring
HTML / CSS / Tailwind / Bootstrap

I’m Sahan Singappulige, a full-stack developer and technical lead based in Westerville, Ohio. With approximately 14 years of experience, I build enterprise applications with C#, .NET, React, Angular, SQL Server, and cloud platforms. I combine hands-on engineering with developer mentorship and cross-functional Agile delivery, turning complex business requirements into reliable software.

~14

Years of Experience

9–15

Developers Led at Bloomin’ Brands

Cloud Platforms: Azure, AWS & GCP

Expertise

What I Do

Hands-on enterprise engineering and technical leadership, from user interfaces and APIs to data workflows and cloud delivery.

Enterprise Applications

I develop full-stack enterprise applications using C#, .NET, ASP.NET Core, React, and Angular, with experience in healthcare, restaurant commerce, education, and business operations.

Technical Leadership

I have led teams of 9–15 developers at Bloomin’ Brands, 1–4 at McDonald’s, and 3 at United Technologies, coordinating delivery, reviewing code, and mentoring engineers.

Cloud & Delivery

I support applications on Azure, AWS, and Google Cloud Platform, with CI/CD experience using Azure DevOps and GitHub Actions, alongside Docker and Kubernetes.

APIs & Integration

I build RESTful APIs, backend services, and enterprise integrations connecting commerce, payments, POS systems, and internal business workflows.

Data & Validation

I develop SQL queries, stored procedures, and SSIS packages for data comparison, validation, reconciliation, reporting, and ETL workflows.

Reliability & Quality

I troubleshoot production issues, improve performance and maintainability, and work with product owners, QA, analysts, and client stakeholders to deliver dependable software.

What People Say

Sahan is a great guy to work with and I consider him a friend. Always willing to learn new techniques and improve code quality.

Chris Ayers

Senior Site Reliability Engineer at Microsoft

Sahan is very thorough and dependable. His performance at Virtusa was golden and his leadership and organizational skills were invaluable.

Yohan Wijesinghe

Associate Tech Lead - Full Stack

Sahan is hardworking, independent and goal-oriented. His vast knowledge and strong interpersonal skills make him great with both clients and teams.

Thilanka Leula

Tech Enthusiast & Speaker

Sahan is a team-oriented professional with exceptional technical knowledge. His work was highly valuable in completing projects on time.

Sajitha Hiroshan Wattage

Senior Software Engineer at Volvo Group

Sahan quickly adapts to new technologies and delivers well-documented code. He meets deadlines with consistent quality.

Prasad Hewage

CTO at Familyinmusic

Broad-minded and open-minded engineer. Sahan brings new tech to problem-solving and has deep proficiency in modern solutions.

Srimal Samarasooriya

Project & Engineering Manager

Sahan did an exceptional job with modern business solutions. A great engineer who handles even the most challenging projects.

Gimhani Wijewardena

Junior Executive - IT at Softlogic Holdings

Sahan is a smart and dedicated engineer. He creatively solves problems and is excellent in tough debugging scenarios.

Priyadharsun Sivadasan

Software Architect & Blockchain Lead

Sahan develops tailored solutions with detail-oriented precision. A great team member to achieve project goals.

Nuwan Maduranga

Senior Software Engineer - Globe Computer Systems Ltd

Sahan is a committed individual with a creative mindset and passion for technology. He brings ambition and innovation to every project.

Suwan Fernando

Banking & Digital Channels Professional

Resume

Experience & Education

Approximately 14 years of enterprise development and technical delivery. Client engagements through Virtusa are listed individually; some project dates overlap.

Download Resume

Feb 2020 – Present

Senior Lead Full Stack Developer

Aetna (CVS Health), USA / Virtusa Corporation

TLC & WMMA

Lead full-stack delivery of healthcare claims management and data comparison, validation, reconciliation, and ETL tools. Build React and .NET applications, optimize SQL Server and SSIS workflows, support GCP/AWS deployments and GitHub Actions, and mentor developers.

May 2018 – Feb 2020

Senior Lead Full Stack Developer

Bloomin’ Brands, USA / Virtusa Corporation

Digital Commerce Platform

Managed an offshore team of 9–15 developers delivering ordering, menus, loyalty, and promotions for Outback Steakhouse, Carrabba’s, Bonefish Grill, and Fleming’s. Built .NET and AngularJS services with Sitecore Commerce on Azure.

Feb 2017 – Jun 2018

Senior Software Engineer

McDonald’s, USA / Virtusa Corporation

RSM Dashboard

Led 1–4 developers building nationwide POS monitoring and management. Developed ASP.NET MVC and Angular dashboards, SQL Server reporting, and PowerShell automation for device information and software updates.

Feb 2015 – Jun 2016

Senior Software Engineer

MICROS Retail & MICROS Restaurant / Virtusa Corporation

MyCentral

Built commerce integrations connecting online ordering, payments, kiosks, and call centers with MICROS systems using C#, ASP.NET MVC, SQL Server, and Oracle.

2014 – 2015

Senior Full Stack Developer / Technical Lead

Pearson Education / Virtusa Corporation

Pearson Exchange

Developed educational commerce and course-material workflows with AngularJS, Node.js, and SQL Server. Coordinated feature delivery, reviewed code, and built reusable responsive interfaces.

Jan 2014 – Jun 2014

Senior Full Stack Developer / Technical Lead

United Technologies Corporation / Virtusa Corporation

Taylor Data Management

Led a 3-person team delivering product, parts, returns, and warranty management. Built SPA features with Knockout.js and Sammy.js, backend services with Node.js and C#, and SQL Server and SharePoint integrations.

2012 – 2014

Software Engineer

AKLO Information Technologies

VIDLO SKY 12 & Broker Back Office Management

Developed school administration and stockbroking back-office workflows using C#, .NET, JavaScript, SQL Server, and Oracle, supporting integration, validation, reporting, and defect resolution.

2012

BSc in Information Technology

Sri Lanka Institute of Information Technology (SLIIT)

2011

Diploma in Web Development

Turnkey IT Academy

2010

Diploma in Web Designing

Beyond Basics College of ICT

Organizations and Projects I’ve Contributed To

Blog

Latest Blog Posts

Notes on software engineering, frontend development, and lessons from building applications.

Model Context Protocol (MCP): Connecting AI Agents to Real-World Applications

AI Engineering

Posted on Oct 16, 2026

Get in touch

Let's Connect

Let’s discuss how my enterprise engineering and technical leadership experience can contribute to your team. I’m open to software engineering opportunities and meaningful collaborations.

Phone: +1 813-694-6848
Email: sahankaushal@gmail.com

Senior Lead Full Stack Developer | Technical Lead

C# / .NET / ASP.NET Core

React / Angular

JavaScript / Node.js / Python

SQL Server / SSIS / Oracle

PostgreSQL / MongoDB

Azure / AWS / Google Cloud

Docker / Kubernetes / CI/CD

REST APIs / Microservices

Technical Leadership / Mentoring

HTML / CSS / Tailwind / Bootstrap

Phone:

+(1) 813 694 6848

Email:

sahankaushal@gmail.com

About Me

Senior Lead Full Stack Developer | Technical Lead

Expertise