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Currently @ T-Mobile

Sudhagar Kalyanasundaram

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I build secure, scalable software and turn complex security challenges into robust systems.

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01About

Security-minded engineer.

I design and ship software that is secure by default, from threat models and cloud infrastructure to the code that customers touch every day.

Sudhagar Kalyanasundaram logo

Associate Software Engineer @ T-Mobile

I’m an Associate Software Engineer at T-Mobile and a recent master’s graduate in Cybersecurity and Information Assurance from the University of Michigan-Dearborn. I build secure, scalable, and reliable digital experiences with a strong focus on clean code, system reliability, and security-first design.

I’m motivated by continuous learning, collaboration, and ownership. I believe hard work and curiosity turn fresh graduates into industry game-changers.

Current focus

Learning the systems and codebase, contributing to ongoing development work, and working closely with the team to deliver reliable, high-quality software.

Master’s GPA
3.97
Featured projects
6+
Security certifications
3
Students mentored
80+

Security First

Threat modeling, secure architecture, and DevSecOps built into every layer.

Full-Stack Builder

From React front ends to Go and Python services on Kubernetes and the cloud.

AI × Security

Applying machine learning to intrusion detection and malware analysis.

High Achiever

3.97 / 4.0 master’s GPA, graduated with high distinction, 3 certifications.

02Experience

Where I’ve shipped.

Building secure systems, scaling back ends, and mentoring the next generation of security engineers.

  1. Present

    United States

    Associate Software Engineer

    T-Mobile

    Current
    • ▹Learning the systems and codebase and contributing to ongoing development work.
    • ▹Working closely with the team to deliver reliable, high-quality software at scale.
    Software EngineeringReliabilitySecurity

  2. Jun 2025 – Nov 2025

    Oak Harbor, WA, USA

    Mobile Developer

    The KeelWorks Foundation

    • ▹Developed and deployed a content-sharing app in Java + JavaScript with Google Sign-In and payments, growing the user community by 18%.
    • ▹Built a scalable backend on PostgreSQL + AWS; reduced content load times by 23% via query tuning and caching.
    • ▹Automated releases with Docker + GitLab CI/CD, shortening release cycles by 10% and improving deployment reliability.
    JavaJavaScriptPostgreSQLAWSDockerGitLab CI/CD

  3. Feb 2023 – Jun 2023

    Chennai, India

    Teaching Assistant

    Sri Ramachandra Institute of Higher Education and Research

    • ▹Guided 80+ students through hands-on labs: vulnerability scanning, traffic analysis, and secure system configuration using Wireshark and Linux.
    • ▹Delivered reverse-engineering workshops with JADX and Apktool, improving students’ mobile app security analysis skills.
    • ▹Provided one-on-one mentoring, debugged lab setups, and resolved IT issues to improve lab completion rates.
    WiresharkLinuxJADXApktool

  4. Jan 2021 – Jun 2021

    Bhubaneswar, India

    Web Developer

    Youth India Foundation

    • ▹Developed and deployed a secure, responsive website with React.js and Next.js on AWS Amplify, improving performance and uptime by 8%.
    • ▹Automated deployment pipelines with Terraform and GitHub Actions, enabling scalable CI/CD and reducing manual setup time.
    • ▹Designed clean UI components, implemented SEO-friendly pages, and ensured cross-browser compatibility.
    ReactNext.jsAWS AmplifyTerraformGitHub Actions

03Selected work

Projects that defend & build.

Research and engineering across automotive security, DevSecOps, machine learning, real-time systems, and blockchain.

01Automotive Security

In-Vehicle Intrusion Detection

Fingerprinting ECU signals with neural networks to catch spoofed and replayed traffic on in-vehicle networks.

PythonNeural NetworksWiresharkSignal ProcessingStatistical Analysis
02DevSecOps

Secret Scanning on Kubernetes

A distributed, Kafka-driven pipeline that spins up scanner pods to hunt leaked secrets across repositories.

KubernetesGoReactApache KafkaAzure Key Vault
03Machine Learning

Diamond Price Prediction

End-to-end XGBoost model served through a Flask API for accurate diamond price predictions.

PythonXGBoostScikit-learnPandasFlask
04Real-Time Systems

Real-Time Speech Transcription

Low-latency speech-to-text over WebSockets with FastAPI and Vosk, streamed from an Android client.

FastAPIWebSocketsVoskPython asyncioAndroid
05Blockchain

Crowdfunding DApp

A transparent crowdfunding platform where smart contracts make every contribution immutable and auditable.

SolidityReact.jsNext.jsWeb3.jsMetaMask
06Threat Detection

Behavior-Based Malware Detection

Unsupervised learning on runtime behavior (UMAP + Gaussian Mixture Models) to detect novel malware.

PythonUMAPGaussian Mixture ModelsScikit-learnDynamic Analysis

04Toolkit

Skills & certifications.

Breadth across cybersecurity, software development, cloud, and emerging tech.

  • Kubernetes✦
  • Go✦
  • React✦
  • Next.js✦
  • Python✦
  • Terraform✦
  • AWS✦
  • Azure✦
  • Kafka✦
  • Docker✦
  • Threat Modeling✦
  • DevSecOps✦
  • Burp Suite✦
  • Metasploit✦
  • Wireshark✦
  • Machine Learning✦
  • Blockchain✦
  • Security Policies✦
  • HIPAA✦
  • IoT Security✦

Languages

01
  • JavaScript
  • Python
  • Java
  • Go
  • Solidity
  • HTML / CSS

Frameworks & Data

02
  • React
  • Next.js
  • Node.js
  • Spring Boot
  • Flask
  • FastAPI
  • PostgreSQL
  • MySQL

Security

03
  • Threat Modeling
  • Wireshark
  • Metasploit
  • Burp Suite
  • TruffleHog
  • Vulnerability Management
  • Endpoint Security
  • Reverse Engineering

Cloud & DevOps

04
  • AWS
  • Azure
  • Docker
  • Kubernetes
  • Terraform
  • Kafka
  • CI/CD
  • Linux

AI & Emerging

05
  • Machine Learning
  • XGBoost
  • Neural Networks
  • Web3
  • Blockchain
  • IoT Security

Certifications

  • CompTIA Security+CompTIA
  • CompTIA Network+CompTIA
  • Certified in Cybersecurity (CC)ISC2

05Education

Trained in defense.

Academic work grounded in hands-on security research.

April 2025High Distinction

M.S. Cybersecurity and Information Assurance

University of Michigan-Dearborn · Dearborn, Michigan

Advanced studies in threat modeling, secure cloud infrastructure, DevSecOps, and AI-driven security. Hands-on projects included a secret-scanning pipeline on Kubernetes and research in automotive cybersecurity.

  • Threat Modeling & Risk Assessment
  • Secure Cloud Infrastructure
  • DevSecOps
  • AI-Driven Security
  • Automotive Cybersecurity Research
GPA3.97 / 4.0
June 2023

B.Tech. Computer Science and Engineering

Specialization: Cybersecurity & IoT

Sri Ramachandra Institute of Higher Education and Research · Chennai, India

Foundation in secure coding, penetration testing, reverse engineering, and blockchain security. Co-authored a conference paper on a transparent, immutable crowdfunding DApp.

  • Secure Software Development
  • Penetration Testing
  • Blockchain & Smart Contracts
  • IoT Security
  • Published Research
GPA3.46 / 4.0

06Contact

Let’s build something secure together.

Open to software engineering and security roles, collaborations, and interesting problems. My inbox is always open.

$ connect --with sudhagar

> best way to reach me: LinkedIn

> response time: usually within 24h

> status: open to opportunities