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jatin-kumar09/README.md

Hi, I'm Jatin Kumar

Software Engineer · C# / .NET · C++ · Security Systems
Building enterprise infrastructure at Siemens · Open to SDE-1/2 roles at product companies

Engineer who spent 2 years shipping security-critical systems at Siemens — from a certificate validation platform running across 100+ TIA Portal installations to a cross-language NuGet library used in C#, VB, and C++ projects. I care about code that's testable, maintainable, and actually works in production.

📍 Bengaluru, India  ·  📬 jatinverma0903@gmail.com  ·  💼 LinkedIn

What I've shipped

EUCRA — Enterprise Security Validation Platform  Siemens · 2024–present

C# · C++ · VB.NET · Win32 API · X.509 · SHA-256 · NuGet · xUnit · NUnit · SonarQube

  • Certificate validation platform deployed across 100+ TIA Portal installations
  • Integrated WinTrust API, SHA-256 hashing, and X.509 validation — cutting security breach risk by 95%
  • Designed and shipped TrustedCertificateStore from scratch, distributed as NuGet packages in C#, VB, and C++ for broad enterprise adoption
  • Built InstallationValidator CLI with signing-based authenticity checks and end-to-end integrity verification
  • Maintained 92%+ unit test coverage across 150+ test cases with zero production defects over 6 months
  • Reduced false positives by 60% and support escalations by 40%

Multi-Document Export/Import Framework  Siemens Internship · 2024

C# · XML · DCL/RES · NUnit · Reflection API · Factory & Strategy Patterns

  • Processing performance improved by 50% across XML and DCL/RES formats
  • Bidirectional format conversion engine with backward compatibility across 1,000+ automation projects
  • Reflection-driven serialization with zero data loss across multilingual datasets

Tech stack

Primary

C# C++ .NET VB.NET

Also work with

Python Java JavaScript React

Tools & practices

Git SonarQube CI/CD xUnit

Projects

Project Stack Highlights
Crypto-Invest React · Chart.js · RapidAPI · Tailwind Real-time tracker for 80+ crypto assets · 30% better data clarity
Way To Digital React · JavaScript · Tailwind CSS Fully responsive (300px–1920px) · 15% improved user satisfaction

GitHub stats

Jatin's GitHub stats Top langs

Currently

  • 🔭 Working on enterprise security tooling at Siemens (via Randstad)
  • 🌱 Exploring system design and distributed systems concepts
  • 👀 Open to SDE-1/2 roles at product companies — backend, systems, or full-stack
  • 🎓 B.E. Computer Science, Chitkara University — GPA 9.74 / 10

Popular repositories Loading

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    The complete Weather Forecast site is built using React.

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    This repository file contains all the practice and assignment coding questions that I have done during the course of Intro with Python Programming with Coding Ninja.

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  6. music-player music-player Public

    The music player is completely made with the use of 2 frontend languages i.e., html and css.