// US-based Shopify developers
Free project plan & cost estimate in 48 hours.
Senior Shopify developers, based in the US, working your hours
Custom themes, apps, and store integrations, built by US developers who know a broken checkout on a sale day costs real money.
- Interview engineers before you pay anything
- 100% U.S.-based, working your hours
- No brief or spec needed to get started
First 5 Dev Hours Free
Project plan. Roadmap. Cost & ROI estimation.
Real engineers. Real conversations.
Talk to an engineer. Not a salesperson.
Free · No commitment · Project-focused call
Most teams interview matched engineers within a week
Not the right fit? We bring in a replacement
Get your free project plan
Three quick steps. No brief needed.
Free · No commitment · Reply within one business day
// REVIEWS ON GOOGLE
What clients say about working with us
5.0Rated on GoogleChris Masi
July 2026
“Next Gen Coding Company has been one of the most pleasant, on the ball development companies I have had the pleasure of working with. The tight rope structure they have internally made this experience one of a kind and smooth sailing, and I mean from day 1. The process was super simple, the people were more than easy to get along with, and the cherry on top is they all work in the US. They work on my time so no having to wait up until 12:00 am to get an answer and no late night meetings. I can not recommend Next Gen enough. They are the best at what they do.”
Read on Google →
Paul Sangillo
May 2026
“NextGen Codng - is a phenomenal company. Whether it’s development of a platform – cutting edge AI – or general IT service, NextGen has it all covered. They have superb service and a very strong management team. I highly recommend their work. They have a very strong reputation and their pricing is very reasonable.”
Read on Google →
E F
Sep 2026
“They sourced a full Dev Pod for us that we have used for the last year to scale our Product team, and we have had outstanding success with them. Highly recommend. It’s hard to find US-based devs and keep them. They solved this problem for us.”
Read on Google →
Rohan Chandrasekhar
Oct 2026
“Highly tailored and specialized services. Would highly recommend across the stack”
Read on Google →
Erica Pullen
Aug 2026
“I had a great experience with NextGen Coding Company! The team was professional, knowledgeable, and really took the time to make sure everything was explained clearly. I felt supported throughout the entire process and was impressed by how responsive and easy to work with everyone was. I would definitely recommend NextGen Coding Company to anyone looking for a reliable and professional experience!”
Read on Google →
// teams we've worked with
“NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag.”
// VERIFIED ON CLUTCH
A DePIN energy grid, in the client's words
An independently verified review of a Python, Go and Solidity build: IoT hardware bridged to a blockchain network.
“They delivered ahead of schedule and were very well-organized.”
// What we built
NextGen delivered Python edge firmware to extract and cryptographically sign device telemetry, a Go cloud gateway to verify and broadcast that data, and a Solidity oracle smart contract to securely record the energy metrics on-chain.
“Their work attitude and energy were outstanding.”
Danny Mercer
Director, IT Company · Decentralized renewable energy grid
- Python
- Go
- Solidity
- Ethereum
- Smart contracts
- IoT
- Tokenization
// Results
- telemetry ingestion rate
- 99.9%
- telemetry ingestion rate
- block settlement time
- <5 min
- block settlement time
- cryptographic failures
- 0
- cryptographic failures
// Ratings
- Quality
- 5.0
- Schedule
- 5.0
- Cost
- 5.0
- Would refer
- 5.0
// Engagement
Apr – Oct 2026 · 2–5 NextGen engineers · Information technology · United States · 201–500 employees
Sound familiar?
- Inventory is out of sync between Shopify, marketplaces, and your ERP.
- Your app stack is slow and expensive and you want something you own.
- Store changes wait weeks because your agency is backed up.
- Something breaks during a promo and nobody can fix it fast.
What our Shopify engineers build
Themes & storefronts
Fast, on-brand Shopify themes and headless storefronts.
Custom apps
Private apps for the features off-the-shelf apps can't handle.
ERP & inventory syncs
Store, marketplace, and ERP kept in sync with alerts when something drifts.
How it works
- 01
Pick a time
Book a 30-minute project call directly in our calendar.
- 02
Talk through the problem
Tell us what needs building, what's stuck and what success looks like. No spec needed.
- 03
Your plan in 48 hours
Get your project plan, roadmap, cost and ROI estimates. The plan is yours to keep.
- 04
First 5 dev hours free
Agree the scope with our team. Decide whether to continue before any paid work begins.
Common questions
Will this turn into a sales pitch?
No. The call is about your project: what needs building, what's stuck, and whether we have the right engineers. If we're not a fit, we'll say so.
What do I get for free?
A project plan, roadmap, cost estimate and ROI estimate within 48 hours of your project call. Your first 5 development hours are free, too. We agree the scope and any paid work with you before proceeding.
Do I need a spec or brief?
No. Tell us the problem in plain words and we'll help shape the scope with you.
Are the engineers really in the U.S.?
Yes. Every engineer lives and works in the United States. No offshore hand-offs, and that's in the contract.
What our clients say
"NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag."
"Their R&D tax credit workflow platform paid for itself in the first filing season."
"AI-native from day one. Our IRS transcript pipeline runs 24/7 without a human in the loop."
"Property tax appeals used to take weeks. Their comp analysis tooling turned it into hours."
"The AI intake agent handles our tier-1 patient calls with a hand-off cleaner than our old call center."
"POS, inventory, ordering — all unified. We finally have one source of truth across every location."
"The procurement platform paid for itself in the first quarter of use."
"They shipped our matching engine in 6 weeks. Our old team would've taken 6 months."
"Enterprise-grade delivery without the enterprise-agency price tag."
"Their team plugged into our sprint on day one. Zero ramp time."
"NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag."
"Their R&D tax credit workflow platform paid for itself in the first filing season."
"AI-native from day one. Our IRS transcript pipeline runs 24/7 without a human in the loop."
"Property tax appeals used to take weeks. Their comp analysis tooling turned it into hours."
"The AI intake agent handles our tier-1 patient calls with a hand-off cleaner than our old call center."
"POS, inventory, ordering — all unified. We finally have one source of truth across every location."
"The procurement platform paid for itself in the first quarter of use."
"They shipped our matching engine in 6 weeks. Our old team would've taken 6 months."
"Enterprise-grade delivery without the enterprise-agency price tag."
"Their team plugged into our sprint on day one. Zero ramp time."
Hire US-based Shopify developers through NextGen Coding Company for Liquid theme work, custom apps, and Shopify API integrations. A useful technical brief distinguishes Online Store 2.0 customization from app development with Shopify CLI, React Router, and App Bridge. It also identifies the real friction: fragile theme edits, missing merchant controls, expired authentication, or an integration that breaks when an API version changes.
Bring your theme repository, installed app list, and deployment process to the first conversation. Scope might include JSON templates, reusable sections, theme app extensions, or replacing legacy REST Admin API calls with GraphQL Admin API operations. Every engineer lives and works in the US and participates in your standups during your hours. Start with a 15-minute call; NDA and full IP assignment come before code access.
Frequently asked questions
- Do I need a Shopify theme developer or a Shopify app developer?
- A theme developer works mainly with Liquid, JSON templates, CSS, JavaScript, and the theme editor. An app developer handles authentication, APIs, webhooks, extensions, and application hosting. Some projects cross both boundaries. Explain whether your problem lives in the storefront presentation, merchant administration, or external data exchange before choosing the interview focus.
- Should a new Shopify integration use REST or GraphQL?
- Plan new Admin API integrations around GraphQL; Shopify treats the REST Admin API as legacy. Review query costs, pagination, bulk operations, and the selected API version rather than translating endpoints mechanically. Existing integrations need an inventory of used resources and behavior so migration preserves business rules, error handling, and data ownership.
- How can a developer customize Shopify without making theme updates painful?
- Keep changes in version control, use reusable sections and blocks, and avoid scattering duplicated logic across templates. Theme app extensions can keep app functionality separate from direct theme edits. Test updates in an unpublished theme, compare upstream changes carefully, and document custom settings so merchants can manage content without editing Liquid.
- Can a Shopify developer customize checkout on any plan?
- Checkout customization depends on the store’s plan, the extension surface, and current Shopify eligibility rules. Verify those constraints before promising a particular checkout interaction. Evaluate Checkout UI extensions and Shopify Functions where supported, and avoid designing around legacy checkout.liquid modifications. The first deliverable should be a feasible approach, not an unsupported mockup.
- What access does a Shopify developer need to start?
- Prepare the theme or app repository, development store details, required collaborator permissions, and documentation for connected systems. Grant only the access necessary for the assignment, and keep secrets outside source control. NextGen Coding Company signs an NDA and full IP assignment before touching code. Book a 15-minute call to review scope and access requirements.
- Are your developers really based in the US?
- Yes. Every engineer lives and works in the United States. No offshore subcontracting and no hand-offs to another team. That's written into the contract.
- How fast can someone start?
- Most teams interview matched engineers within a week of the first call. Start dates depend on your interview process.
Related reading
- How to hire a software developer
What to check before you sign.
- Hiring test for senior engineers
How to vet senior talent fast.
- Senior engineer salary guide 2026
What the market pays.
- Onshore vs offshore vs nearshore
The honest tradeoffs.
- Forward deployed engineers
Need an owner, not just capacity?
- Resource library
Every guide and benchmark we publish.
Start your project request
Tell us what you're building — engineering capacity, AI, QA, cloud, or a fixed-scope software engagement. Our NYC team responds within one business day.
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