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Stephen – React, Node.js, Typescript, experts in Lemon.io

Stephen

From United States

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Front-end Web DeveloperSenior
Back-end Web DeveloperMiddle-to-senior
5 years of commercial experience
Consulting services
Logistics
Music and audio
Real estate
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Stephen – React, Node.js, Typescript

Stephen transitioned from teaching to software development, driven by a passion for mission-driven startups, especially in education and social impact. Over the last five years, he has been a sole developer at a growing startup, mentored junior engineers in an SME, and built custom solutions for Fortune 100 clients at an agency. He has experience in team management and prefers small, collaborative teams tackling complex challenges. His recent work includes integrating AI-driven appointment scheduling into a healthcare platform, and he actively uses Copilot and ChatGPT in his daily development process.

Main technologies
React
5 years
Node.js
5 years
Typescript
4 years
AWS
4 years
Next.js
3 years
Additional skills
GraphQL
ETL
GitHub Actions
PostgreSQL
Redux
Express.js
MySQL
AWS Lambda
MongoDB
GitHub Copilot
GPT
Ready to start
ASAP
Direct hire
Potentially possible
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Experience Highlights

Senior Software Engineer
May 2023 - Nov 20241 year 5 months
Project Overview

It's a digital strategy, design, and technology agency for enterprise-scale brands in regulated industries.

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Responsibilities:
  • Led cross-functional collaboration with internal teams and Fortune 100 clients to architect and develop enterprise solutions;
  • Developed a no-code AEM integration using TypeScript, Node.js, and GraphQL, significantly reducing implementation time for users from days to hours;
  • Decreased page load times by 50% on a healthcare client’s website by improving API design, significantly enhancing UX and site efficiency;
  • Boosted engagement by 25% for a financial client by aligning business needs in meetings and creating market metric charts for daily emails with HTML, CSS, and JavaScript;
  • Designed and developed a proof-of-concept healthcare AI Assistant leveraging ChatGPT, Next.js, React, and Node.js.
Project Tech stack:
React
Node.js
Typescript
Next.js
GraphQL
Software Engineer
Jan 2021 - May 20232 years 3 months
Project Overview

It's the #1 audio company in the United States.

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Responsibilities:
  • Developed full-stack TypeScript features requiring database design in PostgreSQL, API, and ETL microservice design using AWS, Node.js, and GraphQL;
  • Built front-end rendering with React and Styled Components;
  • Led technical planning to align product and design teams, translating specs into engineering tasks with clear priorities and acceptance criteria;
  • Enhanced app performance by reducing feature rendering time from ~3 seconds to 300 milliseconds, leveraging Recoil for state management optimization;
  • Migrated and refactored data models from DynamoDB to PostgreSQL and incorporated Redis for caching, reducing query response times by 40%;
  • Managed CI/CD deployments using GitHub Actions and AWS CloudFormation infrastructure-as-code;
  • Served as Game Master during team Happy Hours.
Project Tech stack:
React
Node.js
Typescript
AWS
PostgreSQL
ETL
GitHub Actions
GraphQL
AWS Lambda
Lead Software Engineer
Dec 2019 - Feb 20211 year 2 months
Project Overview

It was an all-in-one concierge that set up essential services, such as electricity, internet, and security, for tenants moving into new apartments.

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Responsibilities:
  • Designed, architected, and launched the company web app from scratch;
  • Improved customer acquisition capacity by 100% post-production deployment by automating manual sales workflows through the web app, significantly enhancing operational efficiency;
  • Saved $10,000 by researching and leveraging free public API calls from the FCC and Census;
  • Collaborated closely and daily with the company founder to quickly iterate on and design features as the only developer in a startup environment.
Project Tech stack:
React
Node.js
Redux
Express.js
MySQL
Software Engineer
Sep 2020 - Feb 20215 months
Project Overview

It's a cloud-based solution that manages all aspects of logistics while optimizing operators' supply chain and maximizing carrier efficiencies through automation.

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Responsibilities:
  • Solved and debugged complex problems in microservices architecture;
  • Owned large components of the front end, including analytics dashboard widgets;
  • Organized ticket backlog and worked with systems architects to prioritize and articulate complex technical ideas in a straightforward manner;
  • Won first place in company-wide hackathon.
Project Tech stack:
React
MongoDB
Node.js
Typescript
GraphQL

Languages

English
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