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Currently at Iron Software

Hi, I'm Shehabul Islam Sawraz

CSE Graduate from BUET · Performant Systems · Security Research · Open to Opportunities

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Leading product legacy at Iron Software Exploring formal verification & energy-efficient IoT Reading: Designing Data-Intensive Applications Preparing PhD applications — Fall 2026 Leading product legacy at Iron Software Exploring formal verification & energy-efficient IoT Reading: Designing Data-Intensive Applications Preparing PhD applications — Fall 2026

About Me

Shehabul Islam Sawraz

I'm a Computer Science and Engineering graduate from Bangladesh University of Engineering and Technology (BUET), currently working as a Software Engineer at Iron Software. My interests span systems programming, software security, reverse engineering, cryptography, and full-stack web development. I'm passionate about writing high-performance, reliable software and am actively pursuing research opportunities for graduate studies.

🎓 PhD Applicant in Systems Security & Energy-Efficient Computing — Fall 2026
0+ Years Industry Experience
0 IEEE Publication
0+ Projects Built
0 Companies Worked At

Education

Bangladesh University of Engineering and Technology (BUET)

April 2019 – July 2024

B.Sc in Computer Science and Engineering

CGPA: 3.68 / 4.00

Relevant Coursework: Object-Oriented Programming, Data Structures & Algorithms, Embedded Systems, Discrete Math, Linear Algebra, Calculus, Physics, Probability & Statistics

Dhaka College

2016 – 2018

Higher Secondary Certificate (H.S.C)

GPA: 5.00 / 5.00

Technical Arsenal

Languages

C C++ C# Python Java JavaScript TypeScript HTML CSS x86 Assembly SQL Bash LaTeX

Frameworks & Libraries

.NET Next.js React Express.js Django Redux Tailwind CSS Framer Motion OpenGL Unity

ORMs & Databases

PostgreSQL MySQL Oracle MongoDB Redis Prisma ORM Sequelize ORM

Cloud & DevOps

Azure Cloud Docker WASM Git

Security & Tools

Wazuh Wireshark CodeQL Semgrep Autopsy NMap Cisco Packet Tracer NS-2 DBeaver Navicat

Design

Adobe Photoshop Adobe Illustrator MS Word MS PowerPoint

Work Experience

Iron Software

Software Engineer L2

Feb 2026 – Present

  • Leading the product legacy initiative, serving as the primary liaison between engineering and the customer support team to triage critical issues, prioritize high-impact fixes, and drive rapid resolution cycles — consistently delivering production patches within tight SLAs
  • Redesigned HTML header/footer rendering with batch processing and warm tab reuse, delivering 1.4x–5.5x faster rendering and 5–15% lower memory usage on large PDFs
  • Compiled ZXing C++ barcode engine into WebAssembly and integrated with Blazor WebAssembly, enabling barcode encode/decode in browser-based and serverless environments
Software Engineer

May 2025 – Jan 2026

  • Spearheaded in-memory multi-page TIFF conversion achieving 3.4x faster PDF processing and 95% lower memory usage, enabling scalable cloud and serverless deployments
  • Built in-house PPTX-to-image conversion pipeline, reducing processing time by 40% and boosting rendering reliability by over 90%
  • Engineered full PDF/UA accessibility compliance for HTML-to-PDF rendering — fixing annotation ordering, cross-page MCID assignment, and ParentTree integrity — achieving 100% PAC and VeraPDF pass rate with 5–10x faster tag tree processing
  • Implemented a robust PDF digital signature verification pipeline with certificate trust chain validation, revocation status checking, weak algorithm detection, byte-range integrity verification, and incremental tampering detection for multi-signature documents
  • Extended OCR passport reading with full MRZ field parsing and best-effort Visual Inspection Zone (VIZ) extraction including gender and date-of-issue fields
C# .NET Azure Cloud C++ Debugging Docker WASM Blazor

OpenRefactory, Inc.

Software Security Engineer

Aug 2024 – April 2025

  • Contributed to the Intelligent Code Repair (iCR) product suite, improving bug detection and automated resolution workflows
  • Collaborated with Team Lead to integrate backend intelligence with user-facing components, ensuring seamless system performance and scalability
  • Designed and implemented backend architectures from scratch for Project Clean Beach and Triage Portal, managing package, release, and bug data for 1000+ open-source projects
  • Engineered SBOM analysis and CSV parsing tools to extract data on 500+ vulnerabilities, providing CVE details and secure release suggestions to development teams
  • Built internal CLI tools for cloud-to-database migration and SBOM normalization, improving data consistency and migration speed by 40%
  • Developed signed attestations generation with mutex/semaphore-based concurrency control for thread-safe verification of bug-free projects
  • Contributed to frontend design and optimization using React, enhancing UI responsiveness and interactivity by 30%
Express.js ReactJS Vite Deno 2.0 PostgreSQL Redis Prisma ORM MongoDB Docker Java CodeQL Semgrep Stripe Twilio

Limbics AI

Embedded Software Engineer Intern

Jan 2024 – April 2024

  • Established a master-slave IoT architecture using Raspberry Pi and ESP32 for structural health monitoring, integrating BMI160 sensors for precision data acquisition
  • Optimized power consumption through strategic sleep mode implementation and selection of low-power components
  • Enabled real-time data transmission to Azure Cloud IoT and initiated AI integration for predictive maintenance and anomaly detection

Things I've Built

Meetify

2025

A production-grade video conferencing platform with real-time meetings, screen sharing, session recording, participant controls, and role-based auth via Clerk.

View details
Next.js TypeScript Clerk GetStream

ChaatNChat

2024

Full-stack real-time chat app with Socket.IO for low-latency messaging, JWT auth, PostgreSQL, Redis caching, and Redux Toolkit.

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Express.js React Socket.IO PostgreSQL

PicPred

2024

AI-powered image classification using Django REST + React with Keras InceptionResNetV2 for high-accuracy multi-class prediction.

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Django React TensorFlow Keras

Music Instruments Classification

2024

Deep learning pipeline classifying 20 instrument categories from raw audio via Mel Spectrograms and a custom ResNet-18 architecture.

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Python TensorFlow Librosa

ParkedCar

2023

Mobile app turning idle apartment parking spaces into a rental marketplace with flexible hourly/daily/monthly pricing.

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Java Express.js PostgreSQL

YACC – Compiler Compiler

2022

Fully functional compiler from scratch: symbol table, Flex lexer, Bison parser with type checking, and x86 code generator.

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C Flex Bison x86 Assembly

YAPG – Pong Game

2022

Hardware-level Pong on ATMega32 — no OS. Ultrasonic Sonar paddle control, haptic feedback, and real-time LED Matrix rendering.

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ATMega32 Embedded C

Chess

2021

Feature-complete chess game for BUET GameJam 2021 with full rules, checkmate detection, and async JavaFX GUI.

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Java JavaFX

eM-Client

2021

Desktop email client in Java with concurrent session handling via Java Networking and clean JavaFX interface.

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Java JavaFX Networking

Hello Doctor

2021

Android app bridging doctor-patient communication with scheduling, messaging, and Firebase-backed health monitoring.

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Java Android Firebase

RentaStay

2021

Django room rental platform with Oracle DB, Bootstrap frontend. Honorable Mention as standout DB term project.

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Django Oracle Bootstrap

Research & Publications

Publication

Zero-shot Prompting for Code Complexity Prediction Using GitHub Copilot

2023 IEEE/ACM NLBSE

2nd International Workshop on Natural Language-Based Software Engineering

Joanna Cecilia da Silva Santos, Mohammed Latif Siddiq, Abdus Samee, Sk Ruhul Azgor, Md. Asif Haider, Shehabul Islam Sawraz

View Paper
Undergraduate Thesis

Adaptive Duty Cycling Leveraging Heterogeneous Sleep Modes for Modbus-Based Wired IoT Systems

2024 Dr. A. B. M. Alim Al Islam, Professor, BUET
  • Formulated an innovative model applying duty cycling — typically used in wireless sensor networks — to energy-efficient wired networks in hostile industrial environments
  • Orchestrated a Master-Slave hierarchy with Reinforcement Learning-based adaptive duty cycling to optimize energy consumption and ensure robust performance
  • Conducted extensive testbed experiments demonstrating significant reductions in energy usage and enhanced data communication efficiency under extreme conditions

Affiliations & Achievements

Affiliations

  • 🛡️
    2023–24: President, BUET Cyber Security Club
  • 🖥️
    2021–23: Member, IEEE Computer Society BUET Student Branch Chapter

Major Achievements

  • 🏆
    2024: Problem Setter, Inter University Capture the Flag — BUET CSE FEST 2024
  • 🏅
    2023: Organizer & Problem Setter, Inter University CTF — BUET CSE FEST 2023
  • 🥇
    2020: Winner (Tertiary Student Project Category), BASIS National ICT Awards

Get In Touch

Let's connect!

Whether you have a question, a project idea, or just want to say hi — my inbox is always open. I'll do my best to get back to you promptly.

shehabulislamsawraz@gmail.com +880 1627 230364 Shehabul-Islam-Sawraz shehabul-islam-sawraz
Thanks! I'll get back to you soon 🎉