Open for Work

I turn ideas into intelligent software

AI engineer and full-stack developer. I build multi-agent systems, LLM apps with schema-enforced output and the benchmarks that test them β€” then ship them as real products with Next.js, TypeScript and FastAPI.

At a Glance

πŸ§ͺ AI Eval

@ Handshake AI

πŸš€ 4

Live AI Apps

⚑ Full-Stack

Next.js + FastAPI

πŸ‡°πŸ‡· EN+KR

Bilingual Developer

πŸ‡°πŸ‡· TOPIK Prep in Progress
01

About

SweetyCodes
Available Immediately

SweetyCodes

AI Engineer & Full-Stack Developer

sweetycodes@portfolio:~$
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AI engineer and full-stack developer. I build AI systems that hold up in the real world β€” multi-agent pipelines, LLM apps with schema-enforced output β€” and the full-stack products that put them in front of real users.

As an AI Evaluation Engineer via Handshake AI, I design agentic benchmark tasks that evaluate AI coding agents. On my own, I've shipped InterviewLens, a 5-agent interview simulator, and K-Trust, a compliance portal that returns typed JSON from Gemini β€” both built end to end with Next.js, TypeScript, Python and FastAPI. Reliability is what I care about most: retries and fallbacks, confidence-gated writes, and evals that separate real model failures from bugs.

Education

B.Sc Computer Science Β· 8.41 CGPA

Location

Open to Remote Globally

Status

Available Immediately

What I Build

AI

Multi-Agent Systems

5-agent pipelines with memory, retries & fallbacks

AI

AI Evaluation

Agentic benchmarks with Dockerized verifiers

AI

Structured LLM Output

Schema-enforced JSON via Pydantic + Gemini

AI

Agent Reliability

Confidence-gated writes and graceful failure

Full-Stack

Full-Stack Web Apps

Next.js, React & TypeScript β€” from UI to deploy

Full-Stack

APIs & Backends

FastAPI + Pydantic services, Firebase & SQL data

My Journey

  1. πŸŽ“
    2023

    Started B.Sc Computer Science

    Where it all began

  2. ⚑
    2024

    Discovered Frontend Development

    Built first web projects and fell in love with UI

  3. 🐍
    2025

    Deep Dived into Python & AI

    100+ hours of self-learning + KMOOC Data Science & AI certificate

  4. πŸ†
    Jan 2026

    3 Hackathon Podiums

    1st Code Relay Β· 1st Solution Sprint Β· 2nd Bug Buster

  5. πŸš€
    2026

    Graduated & Shipping AI Apps

    8.41 CGPA β€” InterviewLens, K-Trust, Draping, CarbonIQ

  6. πŸ€–
    Jul 2026

    AI Evaluation Engineer

    Building benchmarks that test AI coding agents β€” via Handshake AI

Featured Builds

Full-stack AI apps β€” live, on GitHub, and built end to end.

πŸŽ™οΈ
InterviewLens

5-agent AI interview simulator with memory that compounds across sessions.

Next.js 15GeminiFirestore
Read case study β†’
βš–οΈ
K-Trust

Audits Korean merchants and returns trust scores as schema-enforced JSON.

FastAPIPydanticGemini
Read case study β†’
🎨
Draping

AI personal colour analysis from a selfie, plus virtual outfit try-on.

Gemini VisionYouCam APINext.js
View details β†’
🌱
CarbonIQ

Log your footprint in plain language; low-confidence AI reads ask before saving.

GeminiFirebaseRecharts
Read case study β†’

Highlights

Live AI apps

InterviewLens, K-Trust, Draping and CarbonIQ β€” all live and on GitHub

Multi-agent pipelines

Five agents with memory, retries and fallbacks

Hackathon podiums

Two 1st places and a 2nd, in one month

Self-taught in AI

100+ hours, plus the KMOOC Data Science & AI certificate

Tech Stack

AI & LLMs

πŸ’ŽGemini API
2.5 Flash / Flash Lite β€” InterviewLens, K-Trust, Draping, CarbonIQ
🧠OpenAI API
Desktop automation AI bot
πŸ§ͺGoogle AI Studio
Prompt prototyping for Gemini apps
πŸ“Prompt Engineering
Rubrics and prompts for K-Trust & InterviewLens
🧾Structured Output
Pydantic + response_schema in K-Trust
πŸ› οΈFunction Calling & Tool Use
Tools for AI agents
πŸ–ΌοΈMultimodal (Vision + PDF)
Selfie analysis in Draping, resume PDFs in InterviewLens
πŸ“œLong Context Optimization
Fitting resumes, history and rubrics into one context
πŸ“šRAG
Retrieval-augmented generation over your own data
🧭Vector Databases & Embeddings
Semantic search for RAG pipelines
🦜LangChain
Chains, retrievers and tool-using agents
πŸ”ŒMCP
Model Context Protocol β€” connecting LLMs to tools and data

Agents & Evaluation

πŸ€–Multi-Agent Systems
5-agent pipeline in InterviewLens
🧠Agent Memory & State
Candidate memory that compounds across sessions
πŸ”Retries & Fallbacks
Exponential backoff so AI failures never crash a session
πŸ“ŠAI Evaluation
Agentic benchmarks at Handshake AI
βœ…Automated Verifiers
Reference solutions + verifiers for coding-agent tasks
🎯pass@k Testing
pass@2 / pass@5 agent trial gating
πŸ”¬LLM Evals & Tracing
Scoring LLM output and tracing every step of a chain
πŸ”­Agent Observability
Real-time agent pipeline logging
πŸ›‘οΈAgent Security
Safe tool use and input handling for agents

Languages

πŸ“˜TypeScript
InterviewLens, CarbonIQ, this portfolio
🟨JavaScript
ES6+
🐍Python
AI backends, automation, scraping
πŸ—„οΈSQL
SQLite and relational data
🌐HTML5 / CSS3
Semantic, responsive markup
βž•C++
University coursework

Frontend

β–²Next.js 15/16
All recent AI apps
βš›οΈReact
Every frontend project
🎨Tailwind CSS
Styling across all apps
🧩shadcn/ui
Accessible UI components
🎬Framer Motion
Animations in this portfolio
πŸ“ˆRecharts
10-year projection chart in CarbonIQ

Backend & Data

⚑FastAPI
K-Trust backend on Railway
πŸ”ŒREST APIs
Designing and consuming APIs
πŸ–₯️Node.js
Backend projects
πŸ§ͺFlask
Python web backends
πŸ”₯Firebase
Firestore + Auth in InterviewLens and CarbonIQ
πŸ—ƒοΈSQLite
Lightweight relational storage

Python Libraries

βœ…Pydantic
Typed LLM output in K-Trust
πŸ§ͺpytest
Unit and integration tests for Python code
🐼pandas
Sales Reporter + Scraper
πŸ”’NumPy
Numerical data processing
πŸ“‘requests
HTTP clients and API calls
πŸ”BeautifulSoup
Web Scraper project
πŸ•ΉοΈSelenium
Browser automation
🎭Playwright
Browser automation

Dev & Deploy

πŸ™Git/GitHub
Every project, every day
🐳Docker
Dockerized benchmark environments
πŸš€Vercel
Frontend deployments
πŸš‚Railway
FastAPI deployment for K-Trust
🌍Netlify
Static site deployments
☁️Cloudinary
Image pipeline in Draping

AI Dev Tools

⚑Cursor
AI-powered code editor
πŸ€–Claude AI
Daily AI coding assistant
πŸ§‘β€βœˆοΈGitHub Copilot
AI pair programming
✨v0.dev
AI UI prototyping

Currently Learning

πŸ‡°πŸ‡·TOPIK KoreanπŸ€–Agent FrameworksLangGraph Β· CrewAI Β· OpenAI Agents SDKπŸ“ˆMachine Learning🧠Deep Learning☁️Azure AI-103 Prep
02

What I Can Build For You

01
AI

AI Agents & Multi-Agent Systems

Agent pipelines with tool use, memory, retries and fallbacks β€” built on Gemini and OpenAI

02
AI

LLM Apps with Structured Output

AI features that return typed, schema-validated JSON your frontend can trust

03
AI

AI Evaluation & Benchmarks

Benchmarks and automated verifiers that test how well LLMs and AI agents really perform

04
Full-Stack

Full-Stack Web Apps

Production Next.js, React and TypeScript apps β€” from UI to deployment

05
Full-Stack

APIs & Python Backends

FastAPI services with Pydantic models, plus Firebase and SQL data layers

06
Full-Stack

Bilingual EN/KO Products

Fully localized English and Korean experiences, end to end

03

Work

EXPERIENCE

AI Evaluation Engineer (Contract)

via Handshake AI

Jul 2026 β€” Present
  • Designed and built agentic, terminal-based benchmark tasks to evaluate AI coding agents, including Dockerized environments, reference solutions, and automated verifiers
  • Calibrated task difficulty empirically by measuring real oracle output variance to set verification tolerances, ensuring tasks reliably distinguish genuine agent failure from task/infra bugs
  • Navigated a multi-stage automated review pipeline (static checks, rubric review, similarity detection, pass@2 and pass@5 agent trial gating) to deliver production-ready evaluation tasks end-to-end
WEB DEVELOPMENT

Business Website

Ready-to-launch templates for small businesses β€” lead generation, e-commerce and SaaS. Designed, built and deployed end to end.

CarbonShine Detailing
View Gallery

CarbonShine Detailing

Lead Gen
Next.jsTailwindFormspree

Premium dark mode car detailing studio with pricing cards and working lead capture form.

Project Details

Full-featured lead generation site for a detailing business. Includes dynamic pricing, testimonial sliders, and an automated contact form.

ACHIEVEMENTS

1st Place Solution Sprint

Intercollege Hackathon β€’ Jan 2026

Team

1st Place Code Relay

Intercollege Hackathon β€’ Jan 2026

Team

2nd Place Bug Buster

Intercollege Hackathon β€’ Jan 2026

Individual

Keynote Speaker Blockchain Seminar

Khallikote University β€’ Year 1

CERTIFICATIONS

KMOOC Data Science and AI

Oct 2025

Full Stack Web Development

Self-Learned β€” FreeCodeCamp + CS50W

Self-Learned

Git and GitHub Version Control

Self-Learned β€” Practiced Daily

Self-Learned

EDUCATION

2023-2026

B.Sc Computer Science

Khallikote University

8.41 CGPA

2021

Senior Secondary XII Science CBSE

Kendriya Vidyalaya

88%

2019

Secondary X CBSE

Kendriya Vidyalaya

91.4%

04

Why Work With Me?

01

I evaluate AI for a living

I build benchmarks that tell real AI agent failures apart from bugs.

02

Reliability is built in

Retries, fallbacks and confidence-gated writes in the AI apps I ship.

03

AI and full-stack in one person

From agent pipeline to Next.js UI to FastAPI backend β€” no hand-offs needed.

04

Everything is live

4 AI apps deployed and on GitHub β€” you can try every one of them right now.

05

Proven under pressure

Three hackathon podiums in one month β€” two 1st places and a 2nd.

06

Bilingual EN / KR

Fluent English, conversational Korean, and preparing for TOPIK.

05

Let's Build What's Next

Open to AI engineer and full-stack roles, internships and freelance AI projects β€” remote

sweety22313@gmail.com