I am Randall Koh, a Computer Science and Mathematics undergraduate at NUS, passionate about developing impactful technology solutions. I am currently co-building CallBridge, an accessibility app for the deaf, and aspire to become a Software Engineer or Quant Developer, leveraging my experience in full-stack development, data-driven systems, and AI-assisted product design. Over the years, I have accumulated a diverse range of practical experiences including co-founding a tech startup, developing algorithmic trading models, and working as a video editor and tuition teacher. I enjoy creating technology that bridges communication gaps and drives positive social impact, while continually advancing my software engineering skills.

Randall Koh

I am Randall Koh, a Computer Science and Mathematics undergraduate at NUS, passionate about developing impactful technology solutions. I am currently co-building CallBridge, an accessibility app for the deaf, and aspire to become a Software Engineer or Quant Developer, leveraging my experience in full-stack development, data-driven systems, and AI-assisted product design. Over the years, I have accumulated a diverse range of practical experiences including co-founding a tech startup, developing algorithmic trading models, and working as a video editor and tuition teacher. I enjoy creating technology that bridges communication gaps and drives positive social impact, while continually advancing my software engineering skills.

Available to hire

I am Randall Koh, a Computer Science and Mathematics undergraduate at NUS, passionate about developing impactful technology solutions. I am currently co-building CallBridge, an accessibility app for the deaf, and aspire to become a Software Engineer or Quant Developer, leveraging my experience in full-stack development, data-driven systems, and AI-assisted product design.

Over the years, I have accumulated a diverse range of practical experiences including co-founding a tech startup, developing algorithmic trading models, and working as a video editor and tuition teacher. I enjoy creating technology that bridges communication gaps and drives positive social impact, while continually advancing my software engineering skills.

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Experience Level

Expert
Intermediate
Intermediate
Intermediate

Work Experience

Co-founder / Software Engineer at CallBridge
August 1, 2025 - August 6, 2025
Built an accessibility-focused mobile app enabling real-time speech-to-text and text-to-speech communication for deaf users. Utilized Twilio, React Native, and FastAPI technologies to bridge phone calls between hearing and non-hearing communities. Secured $20,000 in funding after winning the 2025 Community Hackathon and gained acceptance into the Build for Good accelerator by Open Government Products.
Quantitative Developer at Artificial Autonomy
July 1, 2025 - August 6, 2025
Developed algorithmic trading models and Python-based analytics tools leveraging Interactive Brokers API for portfolio analysis, market research, and automation. Designed backtesting frameworks, real-time data pipelines, and custom metrics to optimize strategies across various asset classes.
Busker at Orchard Road
October 1, 2024 - August 6, 2025
Auditioned through the National Arts Council to obtain a busking license and performed twice weekly, singing and playing guitar at Orchard Road.
Tuition Teacher at Singapore
March 1, 2024 - August 6, 2025
Taught H2 Mathematics for one year and successfully helped a student improve grades from S to B.
Video Editor at SmartLab Tuition Centre
March 1, 2022 - August 6, 2025
Created worksheets and lesson plans in Physics and Mathematics to aid high school students in understanding fundamental concepts.

Education

Bachelor of Computing in Computer Science at National University of Singapore
August 1, 2024 - August 1, 2028
GCE 'A' Level at Raffles Institution
January 1, 2016 - December 1, 2021

Qualifications

Add your qualifications or awards here.

Industry Experience

Education, Software & Internet, Financial Services, Media & Entertainment, Government