ALWIN K G
Software Engineer with 1+ year of professional experience developing and supporting production web applications using C#, ASP.NET Core, SQL Server, Next.js, and React. Hands-on experience in REST API development, business logic, database programming, authentication and authorization, frontend integration, third-party APIs, logging, and production troubleshooting.
I WRITE CODE
I BUILD SYSTEMS
I SHIP SOFTWARE
Not a list of technologies. The systems they add up to.
VoleergoCRM
Lead management, follow-ups, conversions, task assignment, role-based access and project workflows.
One connected stack — frontend to database.
Backend
- C#
- ASP.NET Core
- .NET
- Entity Framework Core
- ADO.NET
- REST APIs
Frontend
- Next.js
- React.js
- TypeScript
- Tailwind CSS
Database
- Microsoft SQL Server
- T-SQL
- Stored Procedures
- Transactions
Security & APIs
- JWT Authentication
- Role-Based Access Control
- Refresh Tokens
- API Validation
- Rate Limiting
- Payment Gateway Integration
Deployment
- IIS
- NSSM
- Nginx
- PM2
- Windows Server
- Ubuntu/Linux
- Application Logs
Tools
- Git
- GitHub
- Postman
- Visual Studio
- VS Code
- Serilog
- Swagger
How a request flows through a system I build.
request travels down · response travels back up
I don't only write code — I run it in production.
CODE
BUILD
API
DATABASE
DEPLOY
MONITOR
TROUBLESHOOT
Security built into the request path, not bolted on.
- 01
AUTH
JWT authentication
- 02
AUTHORIZATION
Role-based access control
- 03
TOKENS
Refresh-token workflows
- 04
VALIDATION
API validation
- 05
RATE LIMITING
Request rate limiting
- 06
LOGGING
Application logging (Serilog)
- 07
AUDIT TRAILS
Audit trails across workflows
Technical Lead
Jul 2026 — PresentVoleergo Solutions LLP
- Continue hands-on software development while taking on additional technical responsibilities across production applications.
- Contribute to backend and full-stack development using ASP.NET Core, C#, SQL Server, Next.js, React, and REST APIs.
- Review implementation and code quality, assist with technical problem solving, and guide developers on backend, frontend, API, and database development practices.
- Participate in application security and production-readiness checks covering authentication, authorization, API validation, dependencies, logging, and configuration.
- Support production deployment and troubleshooting across Windows/IIS and Linux/Nginx environments.
Production Project · Business Management Platform
VoleergoCRM
Scope
CRM, WhatsApp configuration & automation, finance, role & permission management, and project management.
Backend
APIs and business logic in ASP.NET Core and C#, with SQL Server and T-SQL stored procedures for database operations.
Workflows
Lead management, follow-ups, lead conversion, task assignment, WhatsApp workflows, financial transactions, role-based access and project workflows.
Integrations
Meta WhatsApp API integration, template management, audience creation and broadcast messaging.
Leading through the work, still hands-on.
BUILD
Production software, hands-on across backend and full-stack.
REVIEW
Implementation and code quality across production applications.
SOLVE
Technical problems and production incidents.
LEAD
Guide developers on backend, frontend, API and database practices.
DEPLOY
Production deployment and troubleshooting on Windows/IIS and Linux/Nginx.
Technical Mentor — mentored interns on backend and frontend development, including ASP.NET Core, SQL Server, REST APIs, Next.js, React, and clean coding practices.
Master of Computer Applications (MCA)
Ilahia College of Engineering & Technology
2023 — 2025
CGPA: 8.67 / 10
BSc Electronics
Prajyoti Niketan College
2020 — 2023
CGPA: 6.65 / 10
Certification — Cloud Computing — NPTEL Swayam