CEH • PEN-200 (Ongoing) • Cybersecurity • Embedded • AI & IoT

Sultanus Salehin

Cybersecurity & Embedded Systems engineer building secure, intelligent products that connect hardware, software, and the real world.

Erasmus+ alumnus at Yıldız Technical University. I work across secure IoT (LoRa), computer vision, system security, and full-stack platforms—always with a security-first mindset.

⬇ Download CV View Projects Contact Me
in GH @

Based in

Dhaka, Bangladesh

Current Focus

Blockchain Security • XAI • IoT/LoRa • Forensics

Open To

Fulltime • Internships • Research • Remote/On-site Roles

Photo of Sultanus Salehin

Years of building

3+ yrs

Projects, research & client systems since 2022.

Strength

Secure Systems

Threat-aware design across web + embedded.

Erasmus+

YTU

Computer Engineering exchange, Istanbul.

Now

Building: Explainable AI for Medical Images + Secure LoRa pipelines.

ABOUT

Who I Am & What I Build

I’m Sultanus Salehin, currently pursuing my B.Sc. in CSE at Daffodil International University. I blend offensive-security foundations (CEH + PEN-200 ongoing) with embedded systems and AI-driven engineering.

My work ranges from secure LoRa communication systems and IoT robotics prototypes to hospital/LMS platforms and explainable AI for medical imaging. I enjoy taking an idea from scratch and shipping something usable, measurable, and secure.

Through the Erasmus+ KA-171 program at Yıldız Technical University, I gained international exposure and worked closely with students and faculty in a multicultural environment—strengthening how I collaborate, document, and deliver.

Quick Facts

  • 📚 CGPA: 3.47 (DIU CSE)
  • 🛡 Track: CEH • PEN-200 (Ongoing)
  • 🌍 Exchange: Erasmus+ at YTU, Istanbul
  • 💻 Stacks: C/C++, Python, JS, PHP, MySQL
  • 🔬 Research: XAI, blockchain anomalies, LoRa security

Leadership

  • ChronoFern – IT solutions & consultancy, hosting + web systems.
  • Nisi Terra – Co-founder, environmental initiative & event organizer.
  • DIU Job Utsob 2023 & 2024 – Protocol Officer.

SKILLS

Technical Stack & Security Mindset

Cybersecurity & Forensics

  • CEH • PEN-200 (Ongoing)
  • Network analysis: Nmap, Wireshark
  • Web security: Burp Suite, OWASP practices
  • Exploit tooling: Metasploit fundamentals
  • Browser & memory forensics workflows

Programming & Software

  • Python, C/C++, Java, PHP, SQL, JavaScript
  • Frameworks: Flask, Django, Node.js
  • AI/ML: TensorFlow, PyTorch, OpenCV
  • Web: responsive UI + admin dashboards
  • Databases: MySQL schema design & optimization

Embedded & IoT

  • ESP32, ESP32-CAM, Arduino
  • SX1278 LoRa secure messaging experiments
  • Motors, servos, drivers for robotics
  • Sensor integration & real-time logging
  • Edge/embedded ML exploration

Security-Flavored Snippet

// Pseudo: anomaly score for suspicious activity
def anomaly_score(features, model):
    prob = model.predict_proba([features])[0]
    return 1.0 - max(prob)

I like pipelines that turn raw logs & signals into threat-aware insights.

PROJECTS

Systems I’ve Built

Filter by domain. Every project is built around impact: security, reliability, usability.

IoT • Security

Secure LoRa Messenger (ESP32 + SX1278)

Goal: Long-range messaging with encryption where networks fail.

  • Two-way messaging between ESP32 boards using SX1278 LoRa.
  • Encryption layer to protect data in transit.
  • Wiring + safety checks and reliability tests.

Tech: ESP32, SX1278, C/C++, Arduino

Robotics • AI

Rescue Robot & IoT Drone (Prototype)

Goal: Explore rescue/surveillance workflows with modular robotics.

  • Motor + servo robotic base with controlled navigation.
  • Drone concept for surveillance and tracking.
  • CV + IoT streaming experiments (prototype stage).

Tech: ESP32, motor drivers, embedded C, CV basics

Computer Vision

Face & Emotion Recognition System

Goal: Real-time face + emotion inference for smart interactions.

  • Deep learning pipeline for detection + classification.
  • OpenCV real-time video processing and display.
  • Tested multiple datasets/architectures for accuracy.

Tech: Python, OpenCV, TensorFlow/PyTorch

Full-Stack

Hospital & LMS Management Systems

Goal: Secure role-based platforms mirroring real workflows.

  • Role-based access: admin, staff, users.
  • Admin verification for sensitive actions.
  • ERD, schema, backup & recovery planning.

Tech: PHP, MySQL, HTML/CSS/JS

Hackathon • 3D

NASA Space Apps 2025 – Team OrbitX

Goal: Interactive 3D web experience for complex data storytelling.

  • 3D web developer & designer in the team.
  • Browser 3D visuals (Three.js concepts).
  • Collaboration under tight hackathon deadlines.

Tech: JS, Three.js concepts, modern frontend

FinTech • AI

Solvio AI Hackathon – SME Cashflow Copilot

Goal: Detect cashflow anomalies + surface actionable alerts.

  • Led Team CerebrumX to Phase-2 qualification.
  • Anomaly alerts and dashboard prototype.
  • Linked alerts with financing recommendation concept.

Tech: Python, ML basics, dashboards

Client Work

ChronoFern & Client Websites

Goal: Reliable websites + hosting + ongoing maintenance.

  • Travel agency + UK utilities + institutional site.
  • DNS, deployment, performance and responsiveness.
  • SEO basics + troubleshooting & updates.

Tech: HTML, CSS, JS, PHP, cPanel

RESEARCH

Research & Academic Work

Explainable AI for Medical Images (Thesis)

Interpretable ML pipelines for transparent medical image analysis.

  • Explanation methods (e.g., Grad-CAM heatmaps).
  • Trust & interpretability improvements.
  • Secure audit logging for predictions.

Anomaly Detection in Blockchain Security

Detecting malicious patterns using ML + security indicators.

  • Feature engineering across behavior signals.
  • Precision/recall tradeoffs.
  • Threat-aware validation strategy.

LoRa Module Research for Secure IoT

Experiments on low-power long-range secure communication.

  • Reliability + range testing.
  • Encryption on packet layer.
  • Field-ready configuration documentation.

Browser & Memory Forensics Study

Browser and memory artifacts for incident response.

  • Tools and workflow comparisons.
  • Evidence collection → analysis → reporting.
  • Artifacts mapped to attack scenarios.

JOURNEY

Education, Exchange & Leadership

Jan 2022 – Present

B.Sc. in CSE – Daffodil International University

CGPA: 3.47. Focus: cybersecurity, blockchain, networking, databases, AI, embedded systems.

Spring 2025

Yıldız Technical University, Istanbul – Erasmus+ KA-171

International exposure, teamwork, and security-first engineering practice.

2022 – Present

Freelance Web Developer & IT Consultant

Client delivery under ChronoFern: websites, hosting, maintenance, and deployment.

2023 – 2024

Leadership & Volunteering

  • Protocol Officer at DIU Job Utsob 2023 & 2024.
  • Co-founded Nisi Terra for sustainability initiatives.
  • Organized university club/community events.

CONTACT

Let’s Build Something

Open to internships, research collaborations, freelance projects, and security/IoT-focused roles.

Direct Contact

Email: sultan.salehin@gmail.com

Phone: +880 1821 999 366

LinkedIn: linkedin.com/in/sultanus-salehin

GitHub: github.com/S-Salehin

Facebook: facebook.com/sultan.salehin.furqan

Portfolio: chronofern.com/s-salehin

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