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20+
Years delivering eCommerce
16
Countries served
400+
Engineers and specialists
ISO
27001 & 9001 Certified
What We Deliver
Certified Shopify Development for Boston Businesses
Sigma builds Shopify stores for Boston’s life sciences, healthcare, consumer products, fashion, and university-adjacent commerce businesses. Custom Liquid development, Shopify Plus for enterprise and B2B, US payment stack configuration, platform migrations, and ongoing retainer support—delivered by one certified engineering team handling the full scope.
Our global delivery centers give you a structured engineering team with active Shopify Foundations and Liquid Storefronts certifications. Every engagement is scoped properly and priced before work begins. Sigma stays engaged post-launch with dedicated support—not a ticket queue.
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Full-stack delivery: store setup, theme, apps, integrations, Shopify Plus -
Dedicated teams and retainer support -
Transparent pricing agreed upfront
Our Stack
Shopify Technologies We Build With
Focused on Shopify-native tools. Nothing added for padding.
Shopify
Shopify Plus
Liquid
Storefront API
Admin API
Our Services
Everything Your Shopify Store Needs. One Team. End-to-End Ownership.
From your first design review to ongoing post-launch optimization, here’s what Sigma delivers for Boston businesses.
Shopify Store Setup, Theme Development & UI Enhancements
Boston’s consumer base is educated, informed, and quick to evaluate brand credibility online. A slow-loading store, a borrowed theme, or a checkout experience that doesn’t feel considered will cost you conversions before a buyer reaches the product page. Sigma builds Shopify storefronts in custom Liquid that load fast, look precisely like your brand, and are structured to convert—not just to go live.
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Responsive Liquid themes built from your brand identity—not adapted from a shared template library -
Custom Shopify store setup for B2B and B2C, built around Boston consumer behavior and US-native payment methods including Shop Pay, Afterpay, and Klarna -
SEO-clean, speed-optimized code that doesn’t leave technical debt for your marketing team to clean up later -
Mobile-first storefronts connected to your analytics and marketing stack before the store launches
Shopify Plus, B2B & Customization Services
Boston has a substantial B2B commerce layer—life sciences companies with institutional procurement requirements, wholesale distributors serving hospitality and food service accounts, and healthcare brands managing retail and direct channels simultaneously. Standard Shopify wasn’t designed for that complexity. Shopify Plus handles it. Sigma configures it properly for businesses where B2B isn’t a secondary consideration.
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B2B trade portals with custom logins, tiered pricing, role-based access, and catalog restrictions per buyer segment -
Shopify Plus enterprise setup for omnichannel operations—DTC, wholesale, and retail running from a single platform -
Workflow automation and system integrations built to hold up under the order volumes Boston’s scaling businesses generate -
Checkout.liquid customization for Plus stores—fewer steps and more completed purchases
Shopify App Development Services
Boston’s technology-oriented business culture means clients often arrive with specific operational requirements that prepackaged apps don’t satisfy. Sigma builds custom Shopify apps for the actual business logic your organization runs on—engineered to the same standard Boston companies apply to their own software, not cobbled together as a workaround.
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Custom apps for B2B and B2C workflows the default app store doesn’t address reliably -
Apps integrated with Shopify Flow, webhooks, and metafields—built as part of the system, not layered on top of it -
Performance-optimized code that adds no storefront latency or page weight -
Embedded analytics and reporting so your team has clear visibility inside Shopify admin
Shopify App Integration Services
A Shopify store that operates separately from your ERP, your 3PL, and your CRM creates manual reconciliation work at every transaction. Boston businesses running at scale can’t absorb that. Sigma builds integrations that connect Shopify to your entire operation—so inventory, orders, and customer data stay accurate across every platform automatically.
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ERP, POS, CMS, CRM, and US payment gateway integrations including Stripe, Shop Pay, Klarna, and Affirm -
Real-time order, inventory, and customer data sync across every connected system—no end-of-day exports and no manual reconciliation -
Automated workflows that maintain accuracy without constant human oversight -
Shopify analytics and conversion tracking configured before go-live so your data is usable from day one
Shopify Checkout Customization & Optimization
Boston shoppers are deliberate buyers who abandon checkout quickly when something doesn’t add up—a missing payment option, an unnecessarily long flow, or a mobile experience that doesn’t hold up. Sigma addresses this at the Shopify Plus level, where the checkout can be rebuilt to match your buyers and your brand—not just superficially adjusted.
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Shopify Plus checkout.liquid customization—Shop Pay, Afterpay, Klarna, Affirm, and BNPL flows built for how US buyers pay -
Store-wide speed optimization, not isolated to the checkout page -
Infrastructure improvements so high-traffic periods—Black Friday, Cyber Monday, Boston Marathon race week launches, and fall product drops—don’t create downtime -
Funnel analytics and structured A/B testing so every optimization is driven by data, not assumptions
Shopify Migration Services
Most Boston businesses that come to Sigma with a migration project have one primary concern: they’ve built organic search equity over years and they can’t afford to lose it in the platform transition. That concern is entirely justified. Sigma has run enough migrations to know every failure point and how to prevent them all before the project begins.
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Zero-downtime migrations from Magento, WooCommerce, BigCommerce, or older custom-built platforms -
Full URL redirect mapping so your organic search rankings hold through the transition intact -
Clean, verified transfer of every product, customer record, and order in your database -
Post-migration QA and monitoring—Sigma stays engaged after go-live until everything checks out
Shopify Support & Maintenance Services
A well-built store still requires ongoing attention. Platform updates create compatibility issues, apps change behavior, and traffic events reveal performance gaps that weren’t visible at lower volumes. Sigma’s post-launch support catches these before your Boston customers do—through proactive monitoring, not reactive ticket management.
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Proactive monitoring and real-time issue resolution—not a support queue reviewed at the end of the workday -
App and platform updates managed before they cause downstream problems -
Regular security audits and performance reviews tied to your revenue and growth targets -
Ongoing CRO and new feature development as your business grows and your store needs to keep up
Industries
Shopify Stores for Boston Businesses
Sigma has commerce delivery experience across the sectors that define Boston market.
Government and Procurement
Compliant trade portals and digital services
Creative and DTC Brands
Fashion, homewares, and design-led retail
Food and Hospitality
Specialty food, restaurant merchandise, and D2C
Technology
Commerce embedded into digital products
Professional Services
B2B trade and service-based commerce
Health and Wellness
Supplements, skincare, and compliant retail
B2B and Wholesale
Trade portals and multi-tier pricing
Education and Publishing
Digital products and subscription models
How We Work
Our Shopify Development Process
No black boxes. No shifting estimates. Every Sigma project follows a six-stage delivery process that keeps SF clients informed and on schedule.
01
Discovery & Strategy
We start with your customers, your systems, and your commercial goals—before any code is written. The brief drives every decision.
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Theme Design & Customization
Custom or enhanced Shopify themes built for speed and conversion on every device. Design is approved before it goes to engineering.
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App Development & Integration
Custom apps, ERP connections, payment integrations—built and tested as a complete working system, not assembled in the last sprint.
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Quality Assurance & Testing
Full performance, security, cross-browser, and cross-device testing before launch. Your customers don’t find the bugs.
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Store Launch & Deployment
Go-live is a planned, monitored event. Sigma handles deployment and stays on top of the first 48 hours.
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Ongoing Maintenance & Optimization
Sigma doesn’t exit after launch. We stay on – monitoring, optimizing, and building as your Boston business scales.
Why Sigma
Why Boston Businesses Choose Sigma for Shopify
Boston has no shortage of Shopify developers. What it does have a shortage of is certified partners who deliver properly, stay accountable, and don’t disappear after handover.
01
We build for revenue, not just for launch
Going live is the beginning. Sigma designs stores to convert traffic into buyers and keeps improving performance after the store is running.
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A commerce partner, not a code vendor
Sigma aligns Shopify’s capabilities with how your business makes money. Every recommendation has a commercial rationale.
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Fast stores. Fewer abandoned sessions.
Page speed and checkout friction directly affect revenue. Sigma builds stores that load fast and don’t place unnecessary obstacles between a buyer and a completed order.
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Security and Compliance That Holds
ISO 27001:2022 certified. Every engagement includes security practices that protect customer data and support compliance with US data privacy requirement across development,and production.
Certifications
Certified. Not Just Claiming to Be.
In a city where people know what engineering credentials actually mean, we’d rather show them than talk about them. These are active certifications held by the engineers on your project.
Shopify Partner
Shopify Certified Foundations
Certified Liquid Storefronts
Trusted by Brands Across 16 Countries
From Boston businesses to global enterprise retailers, Sigma has delivered commerce outcomes that hold.
In Production
Shopify Work That Shipped
Real projects. Verified outcomes. Full case studies on Sigma’s website.
Australia – Beauty and Retail
Napoleon Perdis Left Behind a Legacy Platform and Moved to Shopify Plus
Napoleon Perdis is a well-known Australian cosmetics brand sold across New Zealand too. Sigma migrated them to Shopify Plus, improving store performance and cutting maintenance overhead.
Improved performance, reduced maintenance cost
USA – B2C / Subscription
Fire Department Coffee Needed Subscriptions, Wholesale, and Accessibility
This US brand had three firm requirements for a single Shopify build: subscriptions, wholesale, and WCAG accessibility. Sigma delivered all three without cutting corners.
Subscriptions, wholesale, and accessibility – one build
Romania – Multi-Store Plus
50+ Shopify Plus Stores, No Real-Time Stock Visibility – Sigma Solved Both
A global beauty brand running 50+ Shopify Plus stores with inventory errors. Sigma unified inventory management and automated workflows across every location.
100% real-time stock accuracy across 50+ locations
Frequently Asked Questions
What does a Shopify development company in Boston do?
More than most companies expect at the outset. A Shopify development company builds stores, customizes Liquid themes, develops custom apps for workflows the app store doesn’t cover reliably, connects Shopify to ERP and CRM systems, configures Shopify Plus for enterprise requirements, handles platform migrations, and provides ongoing post-launch support. Sigma delivers all of this from structured delivery centers – not through a freelancer network that varies by engagement.
What Shopify certifications does Sigma hold?
Sigma is an active Shopify Partner with certifications in Shopify Foundations and Certified Liquid Storefronts for Theme Developers – earned and maintained by the engineers who do the actual work. Beyond those: Adobe Solution Partner (Bronze), AWS Certified Partner, Microsoft Silver Partner, ISO 27001:2022, and ISO 9001:2015. All actively renewed.
Can Sigma migrate our existing store to Shopify?
Yes – and it’s a process Sigma has run many times with a clear methodology. We migrate from Magento, WooCommerce, BigCommerce, and older custom-built platforms to Shopify and Shopify Plus. Every URL redirect is mapped to protect your organic rankings. All product data, customer records, and order history come across completely. You don’t discover what’s missing after go-live.
Does Shopify work for Boston’s life sciences, health, and regulated product categories?
Yes, with the right configuration. Shopify supports age verification flows, restricted checkout experiences, compliance messaging, and integration with relevant third-party verification services. For life sciences and health brands selling direct, Sigma also handles US shipping compliance integrations, FDA-required labeling display, and HIPAA-adjacent data handling considerations where applicable. These requirements are scoped carefully before the build starts – not addressed after launch.
How much does Shopify development cost in Boston?
It depends on scope and integration requirements. A branded DTC storefront is a different project from a Shopify Plus deployment with industrial ERP integration and custom B2B portal development. Sigma scopes every project carefully, provides a clear estimate before work begins, and holds to it. No estimates that grow when you get the invoice.
Can Sigma support both DTC and wholesale channels on one Shopify store?
Yes. Shopify Plus supports both channels from a single platform – with a full DTC storefront for direct customers and a separate B2B portal with custom logins, tiered pricing, and catalog restrictions for wholesale buyers. Sigma has configured this for brands managing both channels and understands where the complexity sits in advance.
Can Sigma build a headless Shopify store?
Yes. Sigma builds headless storefronts on React and Next.js using the Shopify Storefront API – suited to Boston tech companies embedding commerce into an existing product, or brands needing full front-end control and maximum performance. Being straight about it: headless adds real architectural complexity and ongoing maintenance overhead. Sigma assesses whether it genuinely fits your situation before recommending it.
Why choose Sigma over a local Boston Shopify developer?
Boston has capable local developers – that’s not in question. What most freelancers and smaller local agencies can’t match is ISO 27001:2022 certified security practices, a structured six-stage delivery process, dedicated QA, and sustained post-launch support. Sigma is a certified Shopify Partner with 20+ years of commerce delivery and 400+ specialists. You get accountability that continues well past the handover date.
Ready to Start?
Let’s Build a Shopify Store That Sells
Talk to a Sigma Shopify specialist. No pitch decks, no obligation—just a direct conversation about what your Boston business needs.