KARTHIK VIGNESHWAR K
Summary
Results-driven Software Engineer specializing in application development and optimization. Demonstrated success in coordinating comprehensive planning and execution of core software modules. Solid understanding of object-oriented design and software architecture best practices.
Overview
4
4
years of professional experience
Work History
Software Engineer
Light & Wonder
09.2021 - 11.2025
- Delivered maintenance releases ahead of schedule by 15–20%, reducing production defects and improving system reliability for compliance-critical gaming operations.
- Migrated enterprise application from .NET Core 3.1 to .NET 8, improving API performance by 30%, reducing application downtime, and increasing maintainability.
- Implemented Active Directory authentication using LDAP and developed secure login APIs, strengthening security and reducing login-related support tickets by 40%.
- Developed REST APIs and optimized SQL queries, improving query execution speed by 20-60% and resolving high-priority production issues leading to a significant drop in incident count.
- Created automated Cypress UI and unit tests, increasing test coverage from 0% to 60%+ and reducing manual testing effort by ~8 hours per release.
- Integrated secure backend APIs into a sports betting Angular application, enabling real-time updates and automated email triggers, resulting in improved user engagement and 25% faster notification delivery.
- Modernized and refactored legacy modules using SOLID principles and patterns including Repository, Adapter, Strategy, and Dependency Injection, improving code quality and simplifying feature enhancements.
- Reduced page load time by 50% and lowering technical debt by removing deprecated components.
Education
BE - Computer Science and Engineering
VELAMMAL INSTITUTE OF TECHNOLOGY
01-2021
HSC -
VELAMMAL MATRICULATION HR. SEC. SCHOOL
01-2017
SSLC -
VELAMMAL MATRICULATION HR. SEC. SCHOOL
01-2015
Skills
Programming & Frameworks
NET Framework, NET Core, VBNET, C#
Frontend technologies
Angular, JavaScript, TypeScript, Bootstrap
Backend and API development
RESTful APIs, Web API, Entity Framework Core, LINQ
Databases
Microsoft SQL Server
Automation & Testing
Cypress automation, unit testing, Postman
IDE and tools
Visual Studio, Visual Studio Code, Jira, Swagger
Projects
Connexus
- Regulatory compliance software used by the Gaming Boards to monitor, control, and audit Video Gaming Terminals (VGT) across licensed establishments in the route-market gaming ecosystem.
- Delivered continuous maintenance updates and troubleshooted production issues.
- Implemented incremental feature improvements with strict adherence to deadlines.
Route Management System (RMS)
- Route-market specialized software enabling terminal operators to manage locations, monitor drop and meter data, and ensure accurate reconciliation and compliance with Gaming Board regulations.
- Migrated backend from .net core 3.1 to .net 8.
- Implemented Active Directory(AD) authentication.
- Resolved all major and security vulnerabilities as reported in Blackduck.
- Developed and implemented modules and features in Billing Management using Angular and Web API.
Timeline
Software Engineer
Light & Wonder
09.2021 - 11.2025
BE - Computer Science and Engineering
VELAMMAL INSTITUTE OF TECHNOLOGY
HSC -
VELAMMAL MATRICULATION HR. SEC. SCHOOL
SSLC -
VELAMMAL MATRICULATION HR. SEC. SCHOOL