Shopify Development
& Optimization Services

We help your ecommerce brand grow with our Shopify solutions designed for performance, integrations, and long-term scalability. Since 2015, we’ve supported US and EU businesses in building high-performing online stores with a team of 100+ experienced engineers.

Shopify Development
& Optimization Services
Optilyz
Buzz Stream
Echelon
Everphone
Fatty15
Flaus
Intentsify
Lucchese
Win
eCatholic
Optilyz
Buzz Stream
Echelon
Everphone
Fatty15
Flaus
Intentsify
Lucchese
Win
eCatholic
Optilyz
Buzz Stream
Echelon
Everphone
Fatty15
Flaus
Intentsify
Lucchese
Win
eCatholic
Abilitie
Dorling Kindersley
Rasa
Fracture
Revival
1rockwell
Humann Fit
zenefits
Abilitie
Dorling Kindersley
Rasa
Fracture
Revival
1rockwell
Humann Fit
zenefits
Abilitie
Dorling Kindersley
Rasa
Fracture
Revival
1rockwell
Humann Fit
zenefits

Complete Shopify Development
& Optimization

We make sure your ecommerce brand looks great (grounded in UX & UI best practices) and works smoothly. We know how shoppers behave, and what makes conversions rise.
During busy periods like BFCM or product launches, we offer additional technical support to make sure your shop remains stable and fast.

shopify team
Custom Shopify Development
  • B2B on Shopify Plus
  • Shopify Functions development (including migration from legacy Shopify Scripts)
  • Custom theme development
  • UX-focused storefront builds
  • Shopify Plus implementations
  • Headless Shopify architectures
Integrations & Backend Architecture
  • ERP and CRM integrations
  • Payment and fulfillment systems
  • Marketing automation connections
  • API-based custom functionality
  • Subscription platform integrations (Stay, Recharge, Smartrr, Skio, Awtomic)
Performance & Conversion Optimization
  • Speed optimization and Core Web Vitals improvements
  • Checkout flow optimization
  • CRO improvements based on user behavior
  • Advanced analytics setup
Shopify Training & Enablement
  • Shopify Admin training
  • Custom workflows
  • Internal documentation
  • Ongoing maintenance and support
AI & Future-Ready Commerce, GEO analysis
  • Preparing stores for AI-driven product discovery
  • Structured data optimization
  • LLM-ready content architecture

We’re your best choice
– backed by data

Our Shopify experts are your best choice. Here's what makes us so confident:

98%

of our projects come from client referrals

5.0

star rating on Clutch

Expertise in Shopify Plus, headless architectures
& custom commerce

2015

Proven track record with US and EU product
companies since 2015

Transparent communication and flexible
collaboration models

Know-how across the full Shopify stack, from storefront to ERP integrations

98% Referral, 2% Lucky Finds

Lenny dialog
From Poland wth Dev team in mountains
From Poland wth Dev team in mountains

98% Referral, 2% Lucky Finds

Strong partnerships start with great people. That’s why we work with companies we believe in. We focus on thoughtful growth through quality work. Happy customers spread the word, bringing in like-minded partners. Though if you found us by chance, be like Lenny – say hi if it feels right! 😊

Choose your model

We offer flexible payment options: fixed price, time & materials, dedicated team or on-demand, so you can pick the setup that fits your project and workflow best.

Best if
you’re looking for
long-term FTE & part-time roles
Team Extension
Need to scale your team efficiently? We’ll match you with experts who fit your stack and your culture.
Best if
you have a backlog of tasks
and need steady care
Monthly Retainer
Consistent support with a set monthly budget. You get guaranteed dev time and reliable progress, each month.
Best if
you have a project to
be taken care of from A to Z
End-to-End
You get a dedicated team that turns your idea into a product. We lead the build so you can focus on the big picture.
Best if
you need support for
one-off changes without commitment
On-demand & Maintenance
Have something small or unpredictable? Our experts will handle updates, fixes and changes.

We're a perfect match if you
want to…

  • Build custom Shopify solutions and integrations tailored to your business
  • Keep your store stable and converting during traffic spikes and big launches
  • Stand out with personalised design and custom functionalities
  • Connect Shopify with your ERP, CRM, or marketing tools
  • Migrate or upgrade to Shopify smoothly and safely

…and more – let's talk about your needs!

shopify team

To help your Shopify store embrace AI meaningfully and strategically, we:

  • Structure your product data for AI-driven search and discovery
  • Optimise content architecture for LLM-based visibility
  • Integrate personalisation and recommendation tools
  • Connect your Shopify data with advanced analytics and AI models
  • Future-proof your store for AI-driven commerce trends

Curious what AI could do for your store? Get in touch – our experts will find the best solutions for you.

shopify developer

Project Spotlight

Lucchese

Luxury fashion brand – end-to-end Shopify redesign, custom development & platform modernization

Key Impact:

  • Delivered a full end-to-end storefront redesign across all conversion-critical customer journeys
  • Built a lightweight custom A/B testing framework, enabling faster iteration without the overhead of commercial tools
  • Improved accessibility across the storefront, aligned with WCAG and ADA compliance goals
  • Developed omnichannel customer journeys connecting ecommerce and in-store experiences
  • Implemented advanced promotional mechanics (e.g. Gift With Purchase) with custom backend business logic
  • Modernized backend architecture through serverless migration, reducing technical debt and improving long-term scalability

Scope of Work:

  • Full storefront redesign (navigation, homepage, PLP, PDP, cart, checkout, customer account)
  • Custom A/B testing solution and accessibility audit & remediation
  • Deep NetSuite ERP integration supporting order flows and data synchronization
  • Custom Wishlist, Save for Later, and Customer Dashboard development
  • B2B store implementation and advanced custom promotions
  • Serverless migration, automated E2E testing, and architecture modernization

Project Spotlight

Echelon Fit

Multi-store Shopify optimization & complex pricing logic for a global fitness equipment and digital training brand.

Key Impact:

  • Optimized complex discount & membership logic across 4 Shopify stores
  • Improved checkout stability, including bot traffic mitigation
  • Delivered A/B testing on cart & discount logic to improve performance
  • Integrated NetSuite for inventory, order & refund synchronization

Scope of Work:

  • PDP redesign across core product categories
  • Checkout upgrades using Shopify Discount Functions
  • Custom pricing logic for seasonal campaigns (BFCM, sales, promotions)
  • Custom bundle creation
  • Performance optimization & code simplification

Project Spotlight

Clevr

Conversion & retention optimization for a functional wellness beverage brand specializing in superfood and adaptogenic drinks.

Key Impact:

  • Optimized subscription-focused purchase flows, including starter kits, bundle pricing, and recurring revenue logic
  • Improved conversion across high-impact customer journeys — PDP, cart, landing pages, and mobile UX
  • Resolved revenue-critical bugs affecting add to cart, pricing display, discount behavior, and cart experience
  • Enabled flexible promotional experiments and custom pricing logic to support conversion-oriented decision-making
  • Modernized fragile storefront logic and legacy code — creating a cleaner, more scalable foundation

Scope of Work:

  • Subscription flow development and optimization across variants, bundles, and recurring purchase logic
  • Ongoing CRO improvements across PDP, cart, and mobile UX
  • Bundle and starter kit optimization & refinement
  • Campaign landing page implementation, QA, and optimization
  • Performance optimization — reducing frontend overhead and improving loading efficiency
  • UX, CRO, and development audits translated into prioritized implementation work

Project Spotlight

Flaus

Storefront optimization & subscription experience development for an innovative oral care brand behind the world's first eco-friendly electric flosser.

Key Impact:

  • Built reusable PDP templates with more flexible, sitewide logic — including preparation for a Shark Tank appearance
  • Improved subscription reliability and experience, including Stay AI popup and countdown module support
  • Delivered merchandising and pricing updates tied to promotions, discount logic, and inventory changes
  • Helped prepare and execute campaign mechanics, including BFCM promotions and gifting scenarios
  • Implemented SEO and technical improvements, including structured data and crawlability enhancements

Scope of Work:

  • New reusable PDP template development with flexible sitewide logic
  • Subscription flow support and optimization via Stay AI
  • Discount, pricing, shipping, and promotional configuration
  • BFCM and campaign mechanics implementation
  • Performance optimization — reducing frontend overhead and improving loading efficiency
  • SEO, structured data, and crawlability improvements
  • Ongoing storefront optimization across product, collection, cart, and checkout experiences
Our Tech Stack & Expertise
Main:
Shopify Plus, Shopify Functions, Shopify Scripts
Specialties:
Headless Shopify, Shopify Apps, Theme Development, Liquid Theme, Online Store 2.0
shopify logo
Shopify
Main:
React.js, Alpine.js, Vue.js, Angular (up to v15), Vanilla JS, Tailwind, Liquid, CSS, SCSS, HTML
Essential Tools:
JEST (automated unit tests), Playwright (automated E2E tests), Material UI, Redux, Webpack, TinyMCE, Styled Components, Chakra UI
react js logo
React
vue logo
Vue
angular logo
Angular
javascript logo
JavaScript
html5 logo
HTML5
css3 logo
CSS3
tailwind logo
Tailwind
webpack logo
Webpack
materialui logo
MaterialUI
styled components logo
Styled Components
redux logo
Redux
chakra ui
Chakra UI
Main:
JavaScript (Node.js and related: Nest.js, Express.js), Golang, PHP, Ruby on Rails, .NET (C#, ASP.NET MVC)
Specialties:
MongoDB, MS SQL, MySQL, Sequelize, Snowflake, Serverless, PostgreSQL
javascript logo
JavaScript
node js logo
Node JS
nest js logo
Nest JS
express js logo
Eexpress
go lang logo
GO
php logo
PHP
ruby on rails logo
Ruby on Rails
dot net logo
.NET
c sharp logo
C#
asp dot net
ASP.NET
mongodb logo
MongoDB
ms sql logo
MS SQL
mysql logo
MySQL
sequelize logo
Sequelize
swowflake logo
Snowflake
postgres sql logo
PostgresSQL
HCL, JSP, Spring Boot, Hibernate, Tomcat, J2EE
java logo
Java
springboot logo
Springboot
AWS (EC2, S3, RDS, Route 53, Lambda, DynamoDB, ECS, CloudFront), Azure, Docker, Terraform, CI/CD
aws logo
AWS
azure logo
Azure
google cloud logo
Google Cloud
docker logo
Docker
terraform logo
Terraform
Tools:
Figma, Sketch, Clickup, InVision, Jira, Asana, Confluence
Roles:
Project Manager, Scrum Master, Business Analyst, UX Designer
figma logo
Figma
sketch logo
Sketch
invision logo
inVision
clickup logo
ClickUp
jira logo
Jira
invision logo
Asana
confluence logo
Confluence
Main:
Power BI, ETL, Machine Learning
Databases:
PostgreSQL, Elasticsearch, Snowflake
powerbi logo
PowerBI
postgres sql logo
ProgresSQL
elasticsearch logo
ELastic Search
swowflake logo
Snowflake
ERP:
Odoo, Netsuite
Tech Support:
SaaS, CRM
Visuals:
Unity Development (3D, AR/VR)
odoo logo
odoo
netsuite logo
Netsuite
unity logo
Unity3D
Machine Learning:
PyTorch, GLSL
Image Processing:
WebGL, OpenCV
Visuals:
Unity Development (3D, AR/VR)
python logo
Python
webgl logo
WebGL
opengl logo
OpenGL
unity logo
Unity3D

AI & LLM Capabilities

  • LLM integrations via API (e.g., OpenAI, Azure OpenAI)
  • AI-powered personalization & recommendation systems
  • Custom AI assistants connected to Shopify data
  • Machine learning models for forecasting & analytics
  • AI-driven search and product discovery optimization
  • RAG pipelines connecting ecommerce data with LLMs
shopify developer

Get to know us

Our software agency was established in 2015 by two cousins, Paweł and Marcin. What started out as a team of 5 quickly scaled to 100+ people across technologies and locations on a mission to shift the mentality of outsourcing tactical projects to Polish devs. We handpick clients and projects, which enables our team to create, design and implement complex solutions and softwares.

Meet Our Shopify Experts

We're the brains and the heart behind the code. A quirky bunch of passionate pros who love turning ideas into reality. Here, every project is a team sport, and we’re all about building software - and relationships - that last, one line of code at a time.

Shopify team - Mariusz

Mariusz

Lead Fullstack Developer
Avatar marlena

Marlena

Data Analyst
Piotr photo

Piotr

Senior Fullstack Developer
avatar Joanna

Joanna

Frontend Developer
avatar Dawid

Dawid

Senior Frontend Developer
avatar Tadeusz

Tadeusz

Fullstack Developer
avatar Jan

Jan

Senior PM & Frontend Developer
avatar Dawid

Dawid

Senior Backend Developer
avatar Joanna

Joanna

Technical Project Manager
avatar Aleksander

Aleksander

PM & Frontend Developer
+12

Shopify Experts

(and growing)

How we work

01
Let’s discuss your needs
During our first meeting, we’ll talk about your ecommerce model, growth plans, technical setup, and current challenges. We align on your priorities – whether that’s conversion rate, performance, integrations, or scaling your Shopify store.
02
Technical specification
Based on your business needs, we define the technical scope, integrations, architecture, and timeline. You receive a clear roadmap covering design, development, optimization, and launch phases.
03
Select your collaboration model
Need a full end-to-end Shopify build? A migration? Ongoing optimization? You choose the engagement model that fits your internal team and growth stage.
04
Beyond development
We will stay with you after go-live. From performance monitoring and CRO improvements to feature expansions and BFCM technical readiness – we support your store as it grows.
05
Migrating from another platform?
If you're moving from WooCommerce or another platform, we follow a dedicated migration process – covering data, catalog, redirects, integrations, and SEO preservation – so nothing gets lost and your store launches cleanly on Shopify.

Reviews

Quality is our specialty, retention is our metric

“We’ve recently become the #1 fastest growing supplement company in America (Inc. 5000). FPWD played a part in it by continually optimizing our websites.”
"I’ve worked with a lot of agencies in the past and had a lot of headaches – FPWD is not one of those."
“The resources they’ve recommended are all incredibly talented, smart, and good people.”
“They've created a lot of great assets and we've been very pleased with their work.”
“They’re very responsive and eager to help, so we’ve had a great collaboration with them so far.”
“They are invested in the work, and they want us to achieve our goals.”
“Their passion for the work they do is clear. They truly care about our company’s success.”
“The partnership has been working out great for the redesign and relaunch of our main site.”

We’d love
to hear from you

Got a question or need project advice? Reach out, we’d love to hear from you! Better yet, visit us at one of our offices or anywhere in Poland.

Thank you for reaching out! We'll get back to you shortly
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Contact Ala
Alicja Trzewik-Wantuła
Director of Client Relations

FAQ

If you have a question about our Shopify Services, you’ll probably find an answer below. If not, feel free to contact us – we’ll be happy to clear things up for you.

What do Shopify development services typically include?

Shopify development services cover a wide range of work – from custom theme development and storefront builds to complex integrations, performance optimization, and Shopify Plus implementations. We also support AI-ready commerce, subscription flows, and ongoing post-launch development.

What should I look for in a Shopify development agency?

Look for a Shopify development agency with proven ecommerce experience, a strong technical team, and the ability to handle both frontend and backend complexity. It's worth checking their case studies, tech stack, and whether they've worked with brands at a similar scale to yours.

What is a Shopify developer and what can they build?

A Shopify developer specializes in building and customizing Shopify stores – from unique storefronts and custom checkout logic to app integrations and headless architectures. An experienced Shopify expert developer can extend the platform well beyond its out-of-the-box capabilities.

How do I hire a Shopify developer for my project?

When you hire a Shopify developer, consider the scope of your project – whether you need a full build, a migration, or ongoing optimization. We offer flexible collaboration models to match your needs, from project-based engagements to long-term development partnerships.

Can you help with Shopify website development for an existing store?

Yes, Shopify website development doesn't always mean starting from scratch. We work with existing stores to improve performance, redesign key pages, optimize conversion flows, and implement new integrations, while preserving what's already working.

What makes FPWD a reliable Shopify development company?

As a Shopify development company active since 2015, we've supported US and EU ecommerce brands with a team of 100+ engineers. Our work spans custom development, ERP integrations, CRO, and BFCM technical support with measurable results across each engagement.

Do you offer Shopify development for B2B or Shopify Plus merchants?

Yes! We specialize in Shopify Plus implementations including B2B on Shopify Plus, Shopify Functions, headless architectures, and advanced custom pricing logic. Whether you're scaling a DTC brand or building a complex B2B storefront, our Shopify development partners can support you end to end.