Jackie Jin

AI Engineer & Full Stack Developer

Brisbane, Australia qing.jin3912@gmail.com GitHub LinkedIn

Full Stack Engineer with 8+ years of experience, now specialising in AI engineering — building LLM-powered applications, RAG pipelines, and cloud-native systems on AWS. Hands-on with the full AI stack: Claude API, LangChain, ChromaDB, vector embeddings, and streaming inference. Strong cloud background (AWS CCP, CCNP) with production deployments on ECS Fargate, CloudFront, and EFS. Passionate about turning state-of-the-art AI models into reliable, production-ready products.

Seeking: AI Engineer · LLM Engineer · AI Full Stack Engineer
RemoteHybrid4 weeks notice

Skill Proficiency

Career Timeline

W
2022
Senior Full Stack Engineer
NCS Australia
W
2018
Fullstack Web Engineer
Healthcarelogic
W
2017
Fullstack Engineer
JR Craftsman Academy
E
2015
Master of Network Management
Queensland University of Technology (QUT)

Tech Stack

FastAPIJavaScriptKubernetes (K8s)HTML5 / CSS3LangChainReact NativeTailwind CSSNode.js / ExpressReduxSQLArgoCDGitHub Actions (CI/CD)KnexJSMaterial-UINext.jsDocker / Docker ComposeGraphQLREST APIsTypeScriptPythonReactAWS (ECS Fargate, ECR, S3, CloudFront, EFS, ALB, Cognito, Lambda, Amplify)Claude API (Anthropic)Linux / BashOpenAI APIRAG pipeline designWebSockets / SSE

Experience

Senior Full Stack Engineer

NCS Australia·Brisbane, AU
Jun 2022 - Present

Delivered full-stack solutions for government and enterprise clients across Transportation, Energy, and Commercial sectors. Led front-end architecture, API integration, and cloud infrastructure. Also independently built an AI-powered portfolio (RAG + LLM) to explore and demonstrate AI engineering capabilities.

  • ▸Built an AI-powered interactive resume using RAG (ChromaDB + HuggingFace embeddings + Claude API), FastAPI streaming SSE, and Next.js — deployed end-to-end on AWS (ECS Fargate, CloudFront, EFS, ECR)
  • ▸Independently built Qantas' Port Supervisor Page from scratch — given only two hand-drawn UI sketches, self-directed the entire design, frontend, and backend solo; the ELogbook team manager singled me out by name: "your immediate impact, and ability to deliver results from day one is truly awesome"
  • ▸Solved a critical deployment bottleneck by self-learning Kubernetes through Confluence research and proactively reaching out across teams on Microsoft Teams — reduced CI from ~40 min to 7–8 min and CD to ~2 min (70%+ improvement) through iterative trial and error
  • ▸Supported the team's monthly UAT, DEV, and TEST environment deployments and Prod release cycles; received repeated commendations from the Qantas team throughout the engagement
  • ▸Delivered the BEAR system for Queensland's Department of Transport — dynamic form engine and admin dashboard serving government auditors, fully WCAG-compliant
  • ▸Led the PNG Police Check prototype as Senior Developer; success resulted in the Prime Minister of PNG presenting the solution at an international conference in Seattle
PythonFastAPILangChainChromaDBClaude APITypeScriptReactNext.jsNode.jsAWSKubernetesArgoCDDockerGitHub Actions

Fullstack Web Engineer

Healthcarelogic·Gold Coast, AU
Jun 2018 - Jun 2022

Full stack development across the healthcare platform — building features, reviewing PRs, managing deployments, and providing technical support.

  • ▸Led TypeScript adoption across the codebase, reducing runtime errors by 40%
  • ▸Built reusable React component library used across 15+ features, cutting new feature dev time by 30%
  • ▸Maintained 99.9% uptime during production incidents with average resolution time under 2 hours
JavaScriptTypeScriptReactReduxGraphQLNode.jsExpressKnexJSPostgreSQL

Fullstack Engineer

JR Craftsman Academy·Brisbane, AU
Aug 2017 - May 2018

Maintained and extended the company website. Introduced ReactJS within an existing Pug/Node.js stack and modernised the CSS architecture.

  • ▸Integrated ReactJS components into a legacy Pug template system, improving interactivity without a full rewrite
  • ▸Led migration from plain CSS to Sass, establishing reusable mixins and a scalable styling system
ReactNode.jsJavaScriptBootstrapSassPugKeystone

Skills

Languages

Python
1y exp
TypeScript
6y exp
JavaScript
8y exp
SQL
5y exp
HTML5 / CSS3
8y exp

Frontend

ReactNext.jsTypeScriptReduxTailwind CSSMaterial-UIReact Native

Backend

FastAPINode.js / ExpressREST APIsGraphQLWebSockets / SSEKnexJS

Databases

PostgreSQLChromaDBDynamoDBRedisMySQL

DevOps & Cloud

AWS (ECS Fargate, ECR, S3, CloudFront, EFS, ALB, Cognito, Lambda, Amplify)Docker / Docker ComposeGitHub Actions (CI/CD)Kubernetes (K8s)ArgoCDLinux / Bash

AI & ML

Claude API (Anthropic)OpenAI APILangChainRAG pipeline designChromaDB (vector DB)HuggingFace EmbeddingsPrompt engineeringStreaming inference (SSE)LLM orchestration

Education

Master of Network Management

Queensland University of Technology (QUT) · 2015 - 2017

  • ▸Specialisation in network infrastructure, distributed systems, and cloud architecture

Certifications

AWS Certified Cloud PractitionerAmazon Web Services · 2022
Cisco Certified Network Professional (CCNP)Cisco · 2014

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