Full Stack Engineer
Steven Zimmer
Full stack engineer specializing in modern web platforms, AI tooling and model integration, growth engineering, technical SEO, and CMS architecture, with a track record of delivering scalable, high-performance systems in fast-paced, collaborative environments.

Focus Areas
Building fast, accessible, and AI-assisted product experiences.
Trusted by teams and founders
Recent Freelance Work
Select engagements focused on performance, growth, and highly maintainable platforms.

Benji Bakes E-Commerce Website Development
Built and launched a modern ecommerce experience for Benji Bakes that improved online ordering flow, streamlined operations, and created a reliable storefront that supports ongoing growth and repeat customer purchases.
React
Next.js
Stripe
Nodemailer
Zustand
Loom and Atlassian Integration and Market Strategy Execution
Led technical execution across the Loom and Atlassian integration, aligning implementation with acquisition requirements, improving launch readiness for Loom for AI, and enabling faster content operations through scalable CMS workflows.
Sanity CMS
React
TypeScript
Design Systems
Go-to-Market
Enhanced HubSpot CMS with Self-Service Drag-and-Drop Features
Designed and shipped self-serve HubSpot modules that gave content teams flexible drag-and-drop control, reduced developer bottlenecks, and improved consistency across design and SEO-critical page structures.
HubSpot
HubL
CSS
JavaScript
SEO
Scalable Web Infrastructure & Reusable Components
Partnered with design and marketing to establish a scalable web foundation and reusable component system that accelerated new page delivery, improved consistency, and supported both web and email production at scale.
React
TypeScript
Component Library
Email Templates
Design Systems

HubSpot CMS Rebuild to Enhance Brand Visibility
Rebuilt the Verta website on HubSpot to support rebranding and go-to-market goals, creating a more cohesive digital presence while improving marketing execution across web and email campaigns.
HubSpot CMS
Technical SEO
Marketing Automation
Email Development
Analytics
Shopify Rebuild Boosts Revenue and Site Performance
Led a full Shopify rebuild focused on performance and merchandising, delivering a faster and more flexible storefront that improved customer experience and supported stronger ecommerce conversion outcomes.
Shopify
Liquid
Shopify API
Shopify CLI
Performance Optimization
Unified WordPress Migration Boosts SEO and UX
Directed a complex multi-platform migration into a unified WordPress environment, improving governance, simplifying site management, and strengthening SEO and user experience through cleaner architecture and URL strategy.
WordPress
Webflow Migration
Drupal Migration
Technical SEO
Content Architecture
WordPress Optimization Spurs Traffic and Revenue
Optimized a high-traffic WordPress affiliate site with focused performance and content-delivery improvements that reduced load times, increased organic visibility, and drove measurable gains in engagement and revenue.
WordPress
Caching
Image Optimization
Database Optimization
Theme & Plugin Customization

Modern Website with React, Next.js, AWS, and Headless CMS
Delivered a modern marketing site built on a headless architecture, combining performance-focused hosting and polished interactions to improve content agility, brand presentation, and day-to-day publishing speed.
React
Next.js
Headless CMS
AWS S3
AWS Amplify
CloudFront
Framer Motion
WordPress Rebuild Aligns with Strategic Rebrand
Led a WordPress and Gutenberg rebuild aligned to rebrand and acquisition momentum, improving launch coordination across product and marketing while modernizing email systems for faster, more consistent campaign execution.
WordPress
Gutenberg
Email Automation
Template Systems
Go-to-Market
Front-End Web Development Course Leadership
Led a 12-week front-end development program focused on practical production skills, helping students ship stronger work through structured curriculum, hands-on projects, and targeted technical mentorship.
HTML
CSS
JavaScript
React
Curriculum Design
Mentorship

Website Optimization and Security Enhancement
Improved site performance and technical SEO while remediating a critical spam-link infection, restoring search integrity, hardening the platform, and delivering a safer, faster user experience.
Technical SEO
Performance Optimization
Security Hardening
WordPress

Webflow to HubSpot CMS Migration and Rebrand
Owned migration from Webflow to HubSpot CMS during a company rebrand, enabling stronger content operations and delivering a more scalable, cohesive digital presence across key customer touchpoints.
Webflow
HubSpot CMS
Migration Planning
Rebrand Rollout

Revamped Sign-Up and Activity Tracker Boosts Enrollment
Redesigned core enrollment and student-progress experiences to reduce friction and increase motivation, contributing to meaningful gains in sign-ups and stronger completion behavior across learning sprints.
React
UX Optimization
Product Analytics
Experimentation
Data Visualization

Drupal Upgrade and Server Architecture Overhaul
Executed major platform modernization work for Stanford Medicine, including Drupal upgrades, infrastructure improvements, and enterprise authentication integrations to improve reliability, security, and operational resilience.
Drupal 7
Drupal 9
Server Architecture
SAML
Box Integration
Personal Projects
Experiments and side projects showcasing modern UI engineering.
Engineering Toolbox
A flexible stack spanning AI tooling, engineering foundations, CMS architecture, and growth systems.
Frontend
HTML/CSS
Vanilla JavaScript
TypeScript
React
jQuery
Redux
Zustand
Gutenberg Blocks
HubL
Liquid
Tailwind CSS
PostCSS
Framer Motion
Backend
Node JS
Next JS
Remix
PHP
Laravel
Gatsby
AWS
Prisma ORM
NoSQL
PostgreSQL
MySQL
GraphQL
REST APIs
MongoDB
Technical SEO
AI/ML
OpenAI API
Anthropic API
Google Gemini
Hugging Face
LangChain
Vercel AI SDK
Vector Databases (Pinecone, Supabase)
RAG Pipelines
Prompt Engineering
Evaluation & Guardrails
Tools
Webpack
Git
Command Line
GitHub
Vite
Okta
ElasticSearch
Statsig
Optimizely
Microsoft Clarity
Hotjar
LaunchDarkly
Zapier
Stripe
Firebase
Clerk
Auth0
CMS
WordPress
HubSpot
Sanity
Strapi
Contentful
Webflow
Statamic
Marketing
Hubspot
Marketo
Pardot
Salesforce
Mailchimp
MJML
Email Templates
Landing Pages
Google Analytics
Google Tag Manager
Google Search Console
UI Design
Figma
Adobe
Sketch
Certifications
Ongoing learning with a focus on modern frameworks and best-in-class tooling.
Let's build together
Ready to ship a fast, polished product experience?
I partner with teams to design and engineer high-performing systems that improve conversion, SEO, AI-enabled workflows, and long-term maintainability.



