Lead Full Stack Engineer
Jeshua Leger
Building product experiences people trust — from high-traffic commerce to Shopify apps — with 14+ years in the craft since 2012.
About
Engineering with craft, clarity, and care
I turn ideas into customer-focused experiences — where every pixel, query, and deploy is in service of something people actually want to use again.
I lead with integrity, mentor with patience, and keep learning every season. Right now that means leading engineering at BRUNT Workwear and building Shopify apps through Leger Studio.
Experience
Where the work happens
From enterprise agencies to high-growth commerce and my own Shopify studio — always building, always mentoring, always raising the bar.
BRUNT Workwear
PresentFull Stack Engineer
North Reading, MA / Remote · Present
Building and scaling the Shopify storefront experience for a fast-growing workwear brand — from product discovery and PDP configuration to checkout performance and conversion.
- Building storefront features across collections, product configuration, and high-traffic campaign experiences.
- Partnering with design and merchandising to keep UX sharp while protecting Core Web Vitals.
- Owning full-stack delivery across Liquid/theme architecture, Shopify APIs, and modern frontend tooling.
Independent studio building Shopify apps that help merchants grow average order value — starting with Better Bundles, live on the Shopify App Store.
- Designed and launched Better Bundles with native-style products and precise checkout discount allocation.
- Built marketing site, docs, changelog, and Resend-powered lifecycle email on Next.js.
- Focusing on merchant-first workflows, performance, and apps that earn their keep.
Renter and landlord matching platform — swipe, match, and tour apartments through a modern mobile experience at cribbi.co.
- Built renter apps from scratch for iOS and Android with React Native, Expo, NativeWind, and Firebase.
- Guided brand design, layout, color systems, accessibility, and end-to-end user experience.
- Helped shape the product flow from personalized matching through landlord connection and tour booking.
Imarc
Senior Full Stack Web Engineer
Amesbury, MA · 01/2019 – 09/2024
Digital agency spanning strategy, creative, performance marketing, and digital transformation.
Junior Web Engineer
01/2019
Joined building and maintaining client websites across modern agency stacks.
Web Engineer
01/2020
Promoted after year one — broader full-stack ownership across client platforms.
Senior Full Stack Web Engineer
01/2022
Promoted again — led teams, conversion work, and Imarc’s largest client engagement.
- Led a team of 9 on Imarc’s largest client engagement.
- Drove brand engagement +200% through a comprehensive rebrand and site rebuild.
- Increased daily conversions 10× by redesigning high-friction purchase flows.
- Improved sitewide performance and SEO ratings ~70% using Lighthouse and SEMrush.
- Mentored developers through code review, pairing, and QA culture.
- Integrated A/B and personalization suites across Google, Salesforce, VWO, and Optimizely.
CA Technologies
Internet Marketing Analyst (Contract)
Islandia, NY · 03/2018 – 10/2018
Enterprise software publisher later acquired by Broadcom — multilingual marketing site and migration work.
- Built and updated pages in AEM across a large multilingual website.
- Optimized SEO and redirects across 5,000+ pages.
- Supported Automic → CA site migration and lead-gen form integrations.
Automic Software
Junior Web Developer Intern
Vienna, Austria · 07/2016 – 09/2016
Marketing engineering internship supporting enterprise automation adoption ahead of the CA acquisition.
- Updated multilingual content in English, German, and French.
- Built landing pages that lifted conversion rates ~2×.
- Integrated Marketo and HubSpot forms into campaign experiences.
Skills
A stack shaped by real products
Fourteen years of languages, platforms, and product instincts — sharpened by agency delivery, mobile launches, commerce scale, and building Leger Studio.
Product engineering
TypeScript
Typed systems across apps, APIs, and Shopify extensions
React & Next.js
App Router, SSR/SSG, and production UI systems
Remix
Shopify app backends and full-stack routes for Better Bundles
Node.js
APIs, server actions, and edge-friendly backends
Vue.js
SPA and component systems across agency and storefront work
PHP & Laravel
Robust backends serving high request volumes
Prisma
Typed ORM and migrations for app data models
REST & GraphQL
Designing and consuming clean data interfaces
Commerce & mobile
Shopify
Themes, Functions, Cart Transforms, Polaris, App Bridge, and App Store apps
NetSuite
ERP workflows spanning orders, inventory, and operational data
Celigo
iPaaS integrations syncing commerce platforms with NetSuite and beyond
React Native & Expo
Cross-platform iOS/Android product builds
NativeWind
Utility-first styling for mobile interfaces
Firebase
Auth, data, and backend services for mobile apps
Supabase
Auth, Postgres, and realtime-backed product work
Hydrogen / Liquid
Headless and classic Shopify storefront delivery
Interface & systems
HTML / CSS / SCSS
Pixel-accurate UI with accessible structure
Tailwind CSS
Fast, consistent design systems in production
UX / UI
Friction reduction, conversion design, and mentoring designers
Figma
Implementation fidelity and design-engineering collaboration
A/B testing
Optimizely, VWO, Google Optimize, Salesforce Personalization
Performance & SEO
Lighthouse, CWV, redirects, and crawl health
Platforms & delivery
Craft CMS / Drupal / AEM
Enterprise CMS builds and content systems
SQL / Postgres / MariaDB
Query design, data modeling, and migrations
Resend
Transactional and lifecycle email for product and studio sites
Vite & Webpack
Modern and legacy frontend build pipelines
Git / CI
Branching, review, Buddy pipelines, Cypress and Vitest
Vercel
Deployments, previews, and production Next.js / Remix hosting
Cloudflare / CDN
Caching, security, and asset delivery
AI tooling
Cursor-driven workflows, agent skills, and product automation
Selected work
Projects that moved the needle
A mix of commerce platforms, rebrands, and products built to convert — and to last.
- Open →
Leger Studio · Shopify App
Better Bundles
Native-style Shopify bundles with precise discount allocation — no theme edits, no storefront scripts.
- Open →
E-commerce · Present
BRUNT Workwear
High-traffic Shopify storefront work spanning product discovery, configurable PDPs, and campaign launches.
Enterprise rebrand
Breezeline
Led engineering on a modern ISP rebrand focused on customer satisfaction and conversion growth.
Buyflow & stabilization
Atlantic Broadband
Stabilized a legacy site, cleared 1,000+ major issues, and rebuilt purchase flow — lifting daily sales dramatically.
Freelance build
Cornerstone Services
Designed and implemented a new marketing site aligned to existing brand guidelines.
Freelance build
Agape Love Yoga
End-to-end website design and implementation for a refreshed brand presence.
- Open →
Freelance build
Glass by Kristine
Designed and built a marketing site for handcrafted stained glass art, events, and the artist’s brand story.
Side studio
Leger Studio builds Shopify apps that grow stores
Better Bundles is live on the Shopify App Store — native-style bundles, precise discount allocation, and more apps on the way.
Testimonials
People I’ve built with
“Jeshua Leger is not just an ideal web engineer for any agency; he is also an exceptional human being. His value extends beyond his technical work—he brings optimism and a contagious can-do attitude to every project.”
Eric Goudreau
Web Project Manager
“As a full stack engineer, he consistently impressed me with his depth of knowledge about the client, dedication to success, and the ability to deliver high-quality solutions.”
Alexis Smith
Project Manager
“Always positive and upbeat, takes ownership of his team’s problems, and has a keen mind for solving problems and picking up new skills. Any team that he is on will be elevated by his presence.”
Dave Ostrander
Senior Software Engineer
“He is a brilliant young man with a sharp mind and a passion for solving problems. I’ve been very impressed with how quickly he was able to learn new tools, technologies, programming languages and processes.”
John Leger
Sr. Director of Global Web Marketing
Contact
Let’s talk
Have a project, partnership idea, or question? Send a note through the form — it lands in my inbox directly. Based in Salem, NH.