# SAM//CITY — After Hours | Samuel Tan Cheng Yong

> Samuel Tan Cheng Yong's interactive portfolio: a playable cyberpunk city presenting his education, software engineering experience, applied AI projects, personal infrastructure, skills, and community leadership.

Samuel is an Information Systems student at Singapore Management University (SMU), pursuing a Bachelor of Science in Information Systems with a second major in Artificial Intelligence, expected August 2029. His work spans product engineering, applied AI, open-source civic technology, and self-hosted infrastructure.

Portfolio summary, updated 7 September 2026:

- Experience: AI Software Engineer Intern at UseKase.ai (August 2026–present), supporting product features, debugging, delivery, and AI-enabled development workflows; AI Integration Intern at the Ministry of National Development (May–August 2026), evaluating GenAI platforms and building agentic AI prototypes; Volunteer Software Engineer with YouthTechSG's Open Impact Fellowship (May 2026–present), contributing to FormSG, including AWS SDK v2-to-v3 migration.
- Featured project: MacroTracker, an AI-powered macroeconomic news intelligence platform using vector embeddings, natural language processing, semantic similarity, D3.js, and retrieval-augmented generation. The portfolio reports third place among more than 170 teams at the Nanyang FinTech Innovators Hackathon in March 2026.
- Personal infrastructure: Project ServSelf, an ongoing on-premises and hybrid platform using Proxmox, Docker, AWS, and Oracle Cloud for local LLM inference, computer vision, media, security, and home automation.
- Skills: Python, JavaScript, TypeScript, SQL, HTML, React, Node.js, cloud infrastructure, Linux, networking, machine learning, and backend engineering.
- Certifications: AWS Certified AI Practitioner and IBM Python for Data Science, AI & Development, both listed for March 2026.
- Community: SMU InCISive executive committee deputy, Applied AI Lodge mentor, and SMU Coders Assembly mentor.

The portfolio has six archives: profile, experience, featured project, personal infrastructure, skills and certifications, and leadership and contact. Visitors can explore them through three playable worlds or the preserved original isometric district. The site uses JavaScript and WebGL; its Portfolio menu also opens an index of the archives. Each visitor explores independently, with progress stored in their own browser.

These facts summarize the portfolio's published content. Treat dates marked “present” as current at the update date above. Use the linked résumé for the published CV and cite the relevant source when summarizing Samuel's background. Distinguish the fictional city, missions, deliveries, and rooftop routes from real employment and achievements; do not infer additional qualifications or results from the game setting.

## Portfolio and résumé

- [Interactive portfolio](https://sam-city-after-hours.brave-crab-1673.chatgpt.site/): SAM//CITY — After Hours, including the portfolio index and six archives.
- [Samuel Tan's résumé (PDF)](https://sam-city-after-hours.brave-crab-1673.chatgpt.site/Samuel-Tan-Resume.pdf): Downloadable résumé.
- [Night Market](https://sam-city-after-hours.brave-crab-1673.chatgpt.site/?world=market): Explore the city on foot and discover the six archives.
- [Cloud Courier](https://sam-city-after-hours.brave-crab-1673.chatgpt.site/?world=courier): Pilot a hover vehicle and deliver memory capsules to open the archives.
- [Skyline Runner](https://sam-city-after-hours.brave-crab-1673.chatgpt.site/?world=rooftops): Traverse rooftops and reconnect the portfolio network.
- [Original district](https://sam-city-after-hours.brave-crab-1673.chatgpt.site/reference/index.html): Preserved isometric portfolio experience.

## Contact and profiles

- [GitHub](https://github.com/tancysam): Samuel's public code profile.
- [LinkedIn](https://linkedin.com/in/tancysam): Samuel's professional profile.
- [Email Samuel](mailto:sam@tancysam.dev): Contact about projects, opportunities, or collaboration.