Daniel Heaton
Full Stack Developer
8+ years exp
TypeScript
Node JS
Python
PHP
C++
JavaScript
C#
Go
C
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Overview
Technical skills
Timeline
Roles
Overview
Senior full stack developer with experience building scalable SaaS and cloud-based web applications across healthcare and fintech. Focuses on React/Next.js and Node.js/Python backends, production testing with Jest and Cypress, and CI/CD-driven delivery. Has delivered AI features including RAG systems and implemented secure authentication and access control in regulated environments.
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Technical skills
Languages
9
TypeScript
Node JS
Python
PHP
C++
JavaScript
C#
Go
C
Python
3
Flask
Django
FastAPI
QA
3
Cypress
Jest
Selenium
Frontend
6
React.js
Bootstrap
Next.js
Material UI
Redux
Vue.js
DevOps
8
GitHub Actions
AWS
Azure
Amazon EC2
AWS Lambda
Docker
GCP
Kubernetes
Databases
4
MySQL
PostgreSQL
Redis
DynamoDB
Other
21
Express
React Native
LLM
WordPress
RAG
Laravel
Claude
Gemini
Mocha
Vuex
Terraform
Rest API
Copilot
Cursor
CI/CD
Jenkins
Prompt Engineering
Clean Architecture
State Management
Hallucination
Semantic Search
Timeline
Senior Full Stack Developer
•
Senior
Clever Coding
•
Full-Time
Worked on the architecture and ongoing enhancement of a scalable AI-powered SaaS healthcare platform handling large volumes of patient and clinical data. Built and optimized REST APIs using Node.js and Python (Flask), improving performance with caching, background processing, and stronger request validation. Implemented a production RAG pipeline, enhanced frontend performance with React/Next.js, and delivered secure authentication and automated testing; also supported AWS deployments with Docker-based environments.
React.js
Next.js
TypeScript
Node JS
Express
Python
Flask
PostgreSQL
Redis
Docker
AWS
Amazon EC2
AWS Lambda
GitHub Actions
Jest
Cypress
LLM
RAG
Full Stack Developer
•
Middle
Prommt
•
Full-Time
Contributed to a high-availability payment orchestration platform for Open Banking and card transactions across regions. Designed secure Node.js REST services with OAuth2, idempotent processing, webhooks, and real-time transaction updates. Built React user interfaces to improve checkout performance, added automated test coverage using Jest and Selenium, and collaborated on CI/CD improvements using GitHub Actions and Azure deployments.
React.js
TypeScript
Node JS
Express
Azure
GitHub Actions
Jest
Selenium
Software Developer
•
Middle
SportCaller
•
Full-Time
Developed enterprise free-to-play gaming and prediction platforms used by betting and media brands. Built scalable web features using WordPress (custom themes/plugins), React, Bootstrap, and MySQL, and created mobile experiences with React Native. Introduced Cypress end-to-end testing for core user flows and supported multilingual, high-traffic deployments in Agile teams.
WordPress
PHP
React.js
React Native
MySQL
Cypress
Bootstrap