Harsh Kulshrestha
Gurugram
Summary
Accomplished Software Engineer with a proven track record at Walker Digital Table Systems, enhancing legacy systems and building new features. Skilled in Java development and Agile methodologies, I excel in debugging complex issues while collaborating effectively with cross-functional teams to deliver high-quality solutions.
Overview
4
4
years of professional experience
Work History
Software Engineer
Walker Digital Table Systems
Gurugram
08.2021 - Current
- Worked on a high-stakes, real-money casino gaming platform, where accuracy, uptime, and stability were critical due to direct financial and regulatory risks.
- Diagnosed and resolved critical bugs in a legacy backend system (Java, Spring, Hibernate), ensuring error-free gameplay and transaction safety.
- Increased JUnit test coverage from 0% to 35% for a major backend module, improving testability, and reducing the risk of regression.
- Took ownership of eliminating critical Black Duck findings across the project by identifying vulnerable dependencies, upgrading libraries, and ensuring license compliance.
- Collaborated closely with QA and product teams to troubleshoot and resolve high-priority production issues under tight deadlines.
- Navigated complex, layered legacy codebases, and improved traceability to reduce issue resolution time and support long-term system stability.
Full Stack Software Developer
Aays Analytics
Gurugram
05.2023 - 09.2024
- Designed and developed REST APIs using Spring and Spring Boot, following best practices in modularization, validation, and exception handling.
- Independently led the backend development for an end-to-end invoicing system, implementing business logic using Spring and JDBC, and applying the Factory design pattern for scalability and maintainability.
- Created and optimized SQL tables and entities to support new features, and improve database performance.
- Ensured seamless integration of backend services with frontend and third-party systems by writing clean, testable code, and coordinating with cross-functional teams.
Associate
PwC
Bengaluru
08.2021 - 04.2023
- Developed and deployed REST APIs as part of an insurance platform, enabling smooth data flow between policy and billing systems.
- Conducted unit testing using JUnit and Mockito to ensure reliability and minimize regressions across new and existing API endpoints.
- Collaborated closely with a distributed team (India- and US-based) in an Agile environment to meet sprint deliverables and resolve cross-functional dependencies.
- Contributed to front-end development using ReactJS, supporting client-facing features, and improving user experience.
- Recognized with the Best Squad Group Award in June 2022 for outstanding performance and alignment with PwC’s strategic vision.
Financial Markets Intern
Futures First
Gurugram
02.2021 - 05.2021
- I gained hands-on experience trading futures in fixed-income markets, developing a practical understanding of financial instruments and market dynamics.
- Analyzed global market trends and interest rate movements to support strategic trading decisions.
Education
Bachelor of Technology - Electronics And Communication Engineering
Vellore Institute of Technology
Skills
- Java development
- Spring framework
- REST API design
- JUnit testing
- SQL
- Backend architecture
- Data structures and algorithms
- SOLID principles
- Agile methodologies
- Legacy system debugging
Timeline
Full Stack Software Developer
Aays Analytics
05.2023 - 09.2024
Software Engineer
Walker Digital Table Systems
08.2021 - Current
Associate
PwC
08.2021 - 04.2023
Financial Markets Intern
Futures First
02.2021 - 05.2021
Bachelor of Technology - Electronics And Communication Engineering
Vellore Institute of Technology
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