# Marcus Yeo

> Software Engineer @ Fieldguide | Data Science & CS @ NUS

Location: San Francisco, California, United States
Profile: https://flows.cv/marcusyeo1

Hi everyone, I'm a final-year student at the National University of Singapore, where I am studying Data Science and Computer Science.

In my first two years of university, I juggled academics with internships and freelance roles across various domains, from data science and business analytics to data analytics and software engineering. I intentionally took an unconventional path to explore different career directions and gain hands-on experience. Looking back, I’m grateful for the exposure as it helped me discover the domain of work that I'm interested in and the environments in which I thrive.

Additionally, I was fortunate to have the opportunity to gain global exposure through the NUS Overseas Colleges program by spending time working at startups based in Silicon Valley (2024-2025) and Ho Chi Minh City (2023), where I immersed myself in the tech ecosystems and entrepreneurial culture.

Since 2019, I have been diving into hackathons to solve meaningful problems during my free time. I enjoy rapid ideation, prototyping, and collaborating with teammates to pitch ideas that resonate with relevant stakeholders.

Above all, I love learning, building, and shipping things that make an impact 🚀

## Work Experience
### Software Engineer (AI) @ Fieldguide
Jan 2024 – Present | San Francisco Bay Area
Building & Evaluating Agents for Auditors 🤖

### Software Engineer @ Jublia
Jan 2024 – Jan 2024 | Singapore
• Developed and optimized REST APIs to facilitate seamless backend integration of AI-driven systems, enabling real-time summarization of event descriptions using OpenAI API
• Engineered and implemented websocket for bidirectional communication within the backend, enabling the first version of the platform's chatbot to achieve real-time interaction capabilities
• Developed and refined prompt engineering techniques to optimize AI model responses, improving the accuracy and relevance of chatbot interactions

### Data Analyst (CEO Office) @ Shopee
Jan 2023 – Jan 2023 | Singapore
Regional Business Intelligence & Planning Department
• Collaborated with regional stakeholders to build budgeting pipelines (Total Orders, Net Orders, Total Revenue) based on aligned business logics for Shopee Express & Services by Shopee across 8 regions
• Enhanced performance by optimising existing SQL queries, resulting in a 50% reduction in overall runtime
• Utilised PySpark to conduct time-series analysis and pinpoint stabilisation points to enhance the accuracy of net order forecasting for Shopee Marketplace

### Business Analyst @ Jumpstart Disruptive Innovations (JDI)
Jan 2023 – Jan 2023 | Ho Chi Minh City, Vietnam
Facilitating market expansion in Vietnam
• Implemented A/B testing methodologies for Email Direct Marketing (EDM) campaigns to analyse customer engagement metrics and segment the existing customer base effectively
• Conducted in-depth market research efforts to gain a comprehensive understanding of client products to craft tailored go-to-market strategies for EdTech startups expanding into Vietnam
• Optimised lead generation and conversion using Apollo.io, LinkedIn Sales Navigator and Zoho CRM

### Data Scientist @ Vertex Holdings
Jan 2022 – Jan 2023 | Singapore
Vertex Holdings, a subsidiary of Temasek Holdings, is a Singapore-based venture capital investment holding company. It provides anchor funding and operational support to a proprietary global network of venture capital funds - 6 network funds, 100+ professionals globally, USD 5B+ assets under management, 230+ active portfolio companies.

• Developed deal-sourcing prototypes using Streamlit to recommend startups for investment managers
• Built web scrapers using BeautifulSoup and Selenium that automated extraction of founder profiles across LinkedIn and the web, capturing key metrics for investment analysis
• Implemented Storyblok API integration that automated content updates and validation, reducing monitoring time from 3 days to 1 day for business development
• Implemented Django unit tests with Codecov to improve web application test coverage
• Fixed frontend bugs on an internal web application using React, TypeScript and Tailwind CSS

### Data Scientist @ HTX (Home Team Science & Technology Agency)
Jan 2021 – Jan 2022 | Singapore
Cognitive Analytics / Data Science & AI Centre of Expertise
• Analysed survey feedback from all 14 Ministry of Home Affairs departments through the use of topic modeling and created a model to classify textual responses 
• Conducted R&D on Automatic Text Summarization and drafted a report evaluating the multi-document summarization scenes and various state-of-the-art models such as PEGASUS and PRIMER
• Assisted with data annotations for Question & Answer NLP model using Haystack


## Education
### Bachelor of Science - BS in Data Science & Computer Science
National University of Singapore

### NOC Silicon Valley Aug '24 & Ho Chi Minh City May '23 in Entrepreneurship/Entrepreneurial Studies
NUS Overseas Colleges

### Residential College 4 (RC4)

### Anglo-Chinese Junior College

### Maris Stella High School


## Contact & Social
- LinkedIn: https://linkedin.com/in/marcusyeofukai
- Website: https://www.marcussyeo.com/
- Website: https://github.com/marcussyeo

---
Source: https://flows.cv/marcusyeo1
JSON Resume: https://flows.cv/marcusyeo1/resume.json
Last updated: 2026-04-05