Resume
Sagnik Chakraborty
Engineer focused on systems, security, and expressive interfaces.
Summary
Software engineer working across object-oriented development, DevOps, and security-minded infrastructure. I like creating data-driven applications, hardening systems, and keeping docs/runs reproducible.
Skills & Technical Tools
SnapshotProgramming Languages
Golang, C/C++, Java, Rust, Python, Perl, SQL, Lua, JavaScript, C#, PowerShell, OCaml
Technologies
Git, PyTorch, TensorFlow, GreenGrass, Azure, GCP, AWS, Splunk, Snyk, Apache Spark, ESXi, Proxmox, Docker, Kubernetes, Terraform, neo4j, Unix, Linux, GDB, EMACS, Windows, x64dbg, Wireshark, tcpdump, Snort, IDA Pro, Ghidra, Radar2, Jadx, CyberChef
Other Skills
AI/ML design & development, operating systems, distributed systems, DevOps, vulnerability management, cybersec & offensive testing, data science/analytics, mathematics, communication, teamwork.
Experience
SelectedHealthcare Product Consulting - Software Development/Architecture Intern
Jun 2023 - Aug 2023
Cognizant Technology Solutions
- Designed and unit tested C# data mapping workflows converting healthcare claims (Facets DB) to HL7 FHIR, improving accuracy by 25%.
- Deployed secure, cost-efficient infrastructure on Kubernetes & Docker; automated CI/CD with Azure DevOps, cutting deployment time.
- Integrated Snyk for real-time vuln detection to safeguard sensitive information across thousands of FACETS users.
- Independently identified pipeline bottlenecks and shipped process improvements that reduced time-to-market for finance-grade data systems.
Administrator & Infrastructure Developer
Jan 2021 - Current
SIGPwny (ACM @ Illinois)
- Managed and optimized 4 ESXi platforms serving 100+ active users; reduced incident response time by 40% and improved availability.
- Designed MicroPython badge PCBs for FallCTF 2023/2024 (~300 people), incorporating reverse engineering and debugging exercises.
- Configured and deployed CTF challenge infrastructure on GKE with focus on network traffic analysis and secure deployment.
- Produced and maintained weekly content and org records; managed media for 600+ YouTube subscribers.
Cofounder, Purple Team
Aug 2024 - Current
SIGPwny (ACM @ Illinois)
- Provisioned and secured OVH cloud and Proxmox environments for purple team operations, including attack/defense exercises for ~30 people.
- Led reverse engineering, penetration testing, and malware analysis during security assessments and CTF events.
CTF Lead
Jan 2024 - Current
SIGPwny (ACM @ Illinois)
- Developed STARVE—automated MITRE EMB3D-based embedded attack simulation/vuln testing platform; reduced manual testing by ~30%.
- Led automated attack methods for MITRE eCTF2023; improved team process via structured reverse engineering and security assessments.
- Secured 2nd place overall at MITRE eCTF2024 as a key member for embedded team; demonstrated advanced penetration testing.
- Authored detailed design reports and implemented GitHub issue tracking to streamline project management and collaborative vuln testing.
Education
University of Illinois at Urbana-Champaign - Champaign, IL
Expected: May 2027M.C.S. - Computer Science
University of Illinois at Urbana-Champaign - Champaign, IL
Graduated: May 2025B.S. - Computer Engineering
Projects
GRADAR NIDS
Gradient-based anomaly scoring on Zeek flow data for network intrusion detection.
Depth-aware Neural Style Transfer
CS445 final: MiDaS v3 depth + VGG19 style transfer with depth-dependent masks, tuned layer strengths, and blending to preserve foreground detail.
dupedbyte.dev
Astro + Tailwind site with Markdown content, Shiki highlighting, and Pagefind-ready search.