About Me
Hey! My name is Joshua. I also go by the alias "incognito" or "foobar" online.
In my free time, I love throwing both frisbees and exceptions.
You can find me at hello@joshua.foo
Work Experience
Ministry of Defence (MINDEF)Feb 2024 - Present
I am currently serving under the Cyber Threat-Intelligence Group in the Digital and Intelligence Service.
Centre for Strategic Infocomm Technologies (CSIT)Jan 2023 - Mar 2023
I performed research into the latest Post-Quantum Cryptography Candidates shortlisted by NIST.
Infineon TechnologiesJun 2019
I helped implement an Autonomous Car Driving System for Annikken Andee's AndeeMobile using 3 external ultrasonic sensors.
Annikken AndeeDec 2018
I engineered a custom Arduino Uno controller board utilizing Hall Effect sensors to pilot an EV3 robot via magnetic field-based input.
Education
National University of Singapore (NUS)2023 - Present
Grade: First Class Honors
NUS Hackers
- Organized the annual flagship hackathon, Hack&Roll, which is the largest student-run hackathon in Singapore.
- Managed the weekly talks and technical workshops aimed at spreading hacker culture in NUS and beyond.
NUS Greyhats
- Managed CTF Infrastructure using Docker and Google Cloud Platform (GCP) for GreyCTF 2025
- Conducted multiple Hack The Box (HTB) Meetup Workshops for the SG Community on topics ranging from Pentesting, Reverse Engineering and Cryptography
Raffles Institution2021 - 2022
Clubs and Societies: Computer Science Society (CSS)
School of Science and Technology, Singapore (SST)2017 - 2020
Activities and societies: Robotics @APEX, Math Talent Development Program, Science Talent Development Program, ICT Talent Development Program
Projects
GPTutorJan 2023 - Apr 2023
- Won "Top 8 Hacks" @ Hack&Roll 2023
- Study tool that ingests data from any text, image, or webpage and produces AI-generated quizzes and summaries.
- Full-stack web application using Flask serving FastAPI with as the frontend
- Optimized and Parsed Results from the GPT 3.0 Model for better integration with the application
- Used Sqlite3 for user login and storage of user data
Survey ScanMar 2020 - Jul 2020
- Developed a Python Cross-Platform GUI Application using Kivy
- Parsed and cleaned input data using pandas
- Implemented simple data analysis for MCQs and Sentiment Analysis for Open-Ended Questions using Numpy
- Graphed and displayed results from Numpy using Matplotlib
Honors and Awards
| Name | Placing | Type | Awarder | Year |
|---|---|---|---|---|
| Hack&Roll | Top 8 Hacks | Hackathon | NUS Hackers | 2023 |
| Microsoft Imagine Cup Junior | 2nd Place | Hackathon | Microsoft | 2020 |
| DEFCON 33 Red Team Village CTF | 1st Place | Security CTF | RTV | 2025 |
| Cyber SEA Games | 1st Place | Security CTF | AJCCBC | 2024 |
| Cyber Defenders Discovery Camp | 1st Place | Security CTF | DSTA | 2024 |
| Cyber:100 | 2nd Place (Team Event) | Security CTF | PSB | 2023 |
| Cyber:100 | 3rd Place (Individual Event) | Security CTF | PSB | 2023 |
| HTX Investigators’ Challenge | 2nd Place | Security CTF | HTX | 2021 |
| National Olympiad in Informatics | Bronze Award | Programming | NUS | 2020 |
| Bebras | Gold Award | Programming | SIMCC | 2021 |
| Oxford University Computing Challenge | Gold Award | Programming | Oxford University | 2020 |
Professional Certifications
| Name | Awarder | Year |
|---|---|---|
| OffSec Certified Professional (OSCP) | Offsec | 2025 |
| OffSec Experienced Penetration Tester (OSEP) | Offsec | 2025 |
| OffSec Wireless Professional (OSWP) | Offsec | 2025 |
| CCNA: Introduction to Networks | Cisco | 2023 |
| App Development with Swift Level 1 | Apple | 2020 |