Open to New Opportunities

Tan Jian Jie

Full-Stack Developer

AI/ML Systems | Real-Time Graphics | Cloud Solutions

Download Resume
ReactPythonC++FlutterAWSGCP

About Me

Final-year Computer Science student at DigiPen specializing in Real-Time Interactive Simulation. I build production AI systems, cross-platform applications, and game engines.

My RAG chatbot reduced 45-minute manual searches to under 10 seconds with page-level citations.

Production deployment experience

Strong problem-solver

Thrives in collaborative environments

Delivers production-ready solutions

4+
Major Projects
5+
Programming Languages
10+
Years Volunteering

Technical Skills

A comprehensive toolkit built through production deployments, academic projects, and continuous learning.

Languages

PythonC++HTML/CSSDartTypeScriptJavaScript

Frameworks

ReactNext.jsFastAPIFlutter

AI / RAG

Semantic SearchRAG SystemsGemini APINLPChromaDBZillizEmbeddings

Cloud & DevOps

GCP (Cloud Run)AWS (S3, Cognito, IAM)DockerCI/CDFirebase

Tools & Auth

Git/GitHubFirebase Auth (RBAC)FirestoreVS CodeWSL

Experienced with Agile methodologies and CI/CD pipelines.

Featured Projects

Production systems and applications I've built, from AI chatbots serving 38 centers to custom game engines.

May 2025 – Present

Sunflower Childcare AI Chatbot

Full-Stack Developer (Intern)

Production RAG chatbot that cut per-question manual PDF search from ~45 minutes to <10 seconds with page-level citations.

45min → 5s search time
FastAPIGemini APIFlutterFirebase+3
Feb 2025 – Apr 2025

CloudShare Web

Programmer

Serverless cloud-storage SPA with JWT-based auth and short-lived federated credentials.

Secure serverless file management
ReactAWS S3Amazon CognitoReact Router+1
Sep 2023 – Apr 2024

Witch Way Up

Programmer

Custom C++ content browser and development tools for game development.

50% faster asset search
C++Custom EngineImGui
Sep 2021 – Apr 2022

Anotter World: The Otter Side

Tech Lead / Programmer

ECS-based game engine with robust architecture for intricate puzzle mechanics.

25% faster feature integration
C++ECS ArchitectureCustom Audio System

Click on a project card to see more details

Work Experience

A journey through roles that shaped my skills in development, leadership, and problem-solving.

Full-stack Developer Intern

Sunflower Childcare Group

May 2025 – Present
Singapore
  • Digitalized 3 critical HR workflows (KPI reviews, appraisals, deployment/promotions) from paper to automated Google Sheets with Apps Script
  • Developed enterprise-wide productivity tools including Gmail signature generator and namecard designer
  • Built end-to-end D&D Attendance & Lucky Draw System with NRIC scanning and WhatsApp integration

Webmaster (NSF)

Singapore Armed Forces

Oct 2017 – Oct 2019
Singapore
  • Photographed and edited high-quality images and videos for print and digital distribution
  • Created and maintained physical records and digital files for accurate documentation
  • Liaised between officers and vendors, maintaining effective communication channels

IT Intern

Metta Welfare Association

Sep 2016 – Dec 2016
Singapore
  • Recommended and implemented targeted hardware and software upgrades, increasing system responsiveness by 60%
  • Troubleshot and resolved network issues, stabilizing operations across the organization

Level Designer & Project Manager

Institute of Technical Education College West

Nov 2013 – Jan 2014
Singapore
  • Led Final Year Project to raise engagement in complex networking concepts
  • Managed 4-person team to build interactive educational game, delivered 1 week early
  • Received media coverage in The Straits Times

Education & Awards

Education

Bachelor of Computer Science

Sep 2020 – Dec 2025

Real-Time Interactive Simulation

Singapore Institute of Technology & DigiPen Institute of Technology

Relevant: C++ programming, data structures, operating systems, software engineering, machine learning

Diploma in Engineering Informatics

Apr 2014 – Mar 2017

Nanyang Polytechnic

Distinction in Operating Systems, A's in IT Fundamentals & Project, Data Structures

NITEC in Information Technology

Dec 2013

Institute of Technical Education College West

GPA 3.861, CCA Grade Platinum (A)

Awards & Achievements

2024

Commendation Award & 10-Year Long Service Award

Singapore Red Cross

For enduring contributions to the organization

2023

Outstanding Youth-Led Project Award

Singapore Red Cross

Recognition for exceptional youth leadership

2018

Unit Best Soldier of the Month

Singapore Armed Forces

September 2018 - Excellence in service

2016
ITE Educational Project Recognition

The Straits Times

Media coverage for innovative educational game project

Get In Touch

Have a project in mind or want to connect? Let's chat!

Let's work together

I'm passionate about building impactful solutions. Whether you have a project in mind or just want to connect, I'd love to hear from you.

Designed & Built by Tan Jian Jie

Built with Next.js, Three.js, and Tailwind CSS