01
Discovery & requirement mapping
Structured discovery session covering business model, integrations, growth plans, and — for migrations — a full audit of the existing store. Output: scoped brief and architecture plan.
BigCommerce Development Services — Custom eCommerce Solutions
From custom Stencil themes and app integrations to full store migrations and headless builds — expert BigCommerce development for brands across the USA, UK, and India.
- BigCommerce stores
- 50+
- Years in Business
- 10+
- week Fastest delivery
- 2
What we build BigCommerce development services
Full-stack BigCommerce expertise — from Stencil theme development and custom app builds to headless architecture and B2B configuration.
Custom theme design & development
Fully custom Stencil storefronts — mobile-optimised, Core Web Vitals ready, and built for conversion. Every line of code written for performance.From $3,000 · 3–6 weeks
App & plugin development
Custom BigCommerce apps via the REST and GraphQL API — product configurators, wholesale pricing engines, subscription billing, custom checkout flows.From $2,500
API & third-party integrations
ERP(SAP, NetSuite, Odoo), CRM (Salesforce, HubSpot), Klaviyo, Stripe, PayPal, FedEx, UPS — fully documented and handed over with test coverage.Scoped per integration
Store migration to BigCommerce
From Shopify, WooCommerce, or Magento — full product, customer, order data transfer with URL redirects for SEO. Under 4 hours customer-facing downtime.From $3,000 · 3–6 weeks
Headless BigCommerce
Next.js / Catalyst frontend on BigCommerce GraphQL API — maximum performance and content flexibility for high-traffic, omnichannel brands.From $15,000 · 10–20 weeks
BigCommerce B2B setup
Customer group pricing, quote management, net payment terms, purchase orders, company account management — configured to your exact wholesale workflow.Scoped on requirements
How we work Our development process
Eight steps from discovery to post-launch support — every BigCommerce project delivered to a defined scope and timeline.
02
Architecture & tech stack planning
Right BigCommerce plan tier, Stencil approach, API integration map, and third-party tool stack defined before a line of code is written. Scope risks flagged upfront.
03
Custom theme design
High-fidelity mockups of homepage, collection, product, and checkout pages — reviewed and approved before development begins.
04
Development & integration
Stencil theme built to BigCommerce best-practice guidelines with version control. API integrations implemented and fully documented.
05
Data migration
Product, customer, and order data exported, transformed, and imported on staging first. URL redirects mapped 1:1. Data integrity verified before cutover.
06
QA & testing
Cross-device (iOS, Android, desktop), cross-browser (Chrome, Safari, Firefox, Edge), and full purchase flow testing. Core Web Vitals benchmarked before deployment.
Not sure where to start?
Tell us your project — custom build, migration, or headless. We'll scope it free and recommend the right approach.
Results BigCommerce development case studies
Three real-world projects — problem, solution, and measurable business outcome.
D2C retail · USAFashion brand — Shopify to BigCommerce migration + custom Stencil theme
D2C retail · USAFashion brand — Shopify to BigCommerce migration + custom Stencil theme
ProblemShopify transaction fees at $2M+ GMV were costing $48,000/year. Mobile conversion sat at 1.2%.SolutionMigrated 4,200 SKUs and 18,000 customer records to BigCommerce Pro. Built a mobile-first Stencil theme, integrated Klaviyo, and preserved SEO with 1:1 URL redirect mapping.$48kAnnual fee savings2.7%Mobile conv. (was 1.2%)
shopify to bigcommerce migrationstencil theme
B2B wholesale · UKIndustrial supplier — BigCommerce B2B Edition + NetSuite ERP integration
B2B wholesale · UKIndustrial supplier — BigCommerce B2B Edition + NetSuite ERP integration
ProblemB2B pricing managed manually via spreadsheets. No online ordering for 340 trade accounts. Quoting took 48 hours.SolutionImplemented BigCommerce B2B Edition with 12 customer price tiers, quote management, net-30 payment terms, and real-time NetSuite ERP inventory sync.+23%Average order value increase340Trade accounts onboarded in 90d
bigcommerce b2bERP integration
Headless · AustraliaHealth brand — Headless BigCommerce on Next.js + Contentful CMS
Headless · AustraliaHealth brand — Headless BigCommerce on Next.js + Contentful CMS
ProblemExisting Stencil store hitting customisation limits. Editorial content needed a CMS BigCommerce couldn't serve natively.SolutionRebuilt as headless BigCommerce using Next.js on the GraphQL Storefront API, Contentful CMS, Stripe payments, and Klaviyo — hosted on AWS.All ✓Core Web Vitals passed+67%Organic traffic in 6 months
headless bigcommercegraphql api
Why PerfectionGeeks Your BigCommerce development company since 2014
Senior engineers, transparent pricing, and India-based delivery at 40–60% below US/UK agency rates.
50+ BigCommerce stores delivered
Retail, B2B, wholesale, fashion, health, electronics — we know the platform deeply before your project starts. No learning curve billed to you.
India team · US & UK hours
Gurugram-based engineers, project managers available EST, PST, and GMT. Senior-level BigCommerce expertise at $25–$45/hr vs $75–$200/hr in the USA or UK.
Dedicated project manager
Single point of contact, daily Slack or email updates, weekly video calls, and progress tracked in Jira or Asana. No project falls through the cracks.
Full-stack in-house ownership
Stencil, GraphQL, headless, B2B Edition, apps — every layer owned by our in-house team. Web development, UI/UX design, and cloud — all under one roof.
200+ digital products since 2014
BigCommerce is one platform in a broader portfolio. We bring AI, mobile, and ML expertise to eCommerce builds — useful when your store needs more than a theme.
30 days post-launch support included
Every project includes a 30-day bug-fix period at no charge. Monthly retainer from $1,500/month for teams needing ongoing development velocity.
Tech stack Technologies we use for BigCommerce development
Every technology layer in our BigCommerce delivery stack — linked to the PerfectionGeeks service pages where applicable.
Storefront
Frontend
API layer
Backend
Payments
PerfectionGeeks — Your BigCommerce Development Company Since 2014
50+ stores delivered · India-based team · US & UK working hours · Dedicated project manager on every engagement · 40–60% below US/UK agency rates
Client Testimonials
PerfectionGeeks provided excellent service from start to finish. Their team was professional, easy to work with, and delivered exactly what we needed on time. We’re very pleased with the outcome and would gladly recommend them to others.
Thanaboon Mingkaew
CEO, SMART IOT
We partnered with PerfectionGeeks for a custom accounting automation software, and the experience was excellent. Their team delivered a high-quality solution that streamlined our operations and improved efficiency. Professional, skilled, and reliable — we’re already working with them on another project.
Saarthak Gupta
Founder, Ceos Accounting Services
As COO of TRP Construction Management, I’m proud of our growth from 300 to 16,000+ SKUs and 4,000+ vendors since 2022. Thanks to Shrey Bhardwaj and Perfection Geeks for delivering scalable, future-ready technology solutions that transformed our vision into a seamless pan-India platform. Highly recommended technology partner.
Mayank Pathak
COO, TRP Construction Management
PerfectionGeeks Technologies transformed our vision into reality with innovative technology solutions. Their professionalism, timely delivery, transparent communication, and commitment to quality made the entire collaboration smooth, reliable, and highly satisfying.
Armaan
Cofounder, Kzminer
I highly recommend PerfectionGeeks Technologies for mobile and web development services. Their expertise, dedication, creative ideas, and customer-focused approach helped our business achieve impressive digital growth successfully.
Chetna
Founder CEO , Klicked
Choosing PerfectionGeeks Technologies was the best decision for our company. Their skilled developers created a user-friendly platform, provided constant assistance, and ensured exceptional performance beyond our expectations every step.
Mark
CTO, IMSMART
Working with PerfectionGeeks Technologies was an excellent experience. Their team delivered our project on time with outstanding quality, smooth communication, innovative solutions, and professional support throughout the entire development process.
Naveen
Founder Director , Way2Kart
PerfectionGeeks Technologies delivered a smooth, professional experience with excellent communication and technical expertise. Their team understood project requirements clearly, provided timely updates, and ensured high-quality results that exceeded expectations.
Srinivasa Mothay
CTO, Sethu Fishries
PerfectionGeeks Technologies impressed with their innovative solutions, responsive support, and commitment to quality. The team handled every detail professionally, delivered on time, and created a seamless experience from start to finish.
Mervin
Cofounder & CTO, Clover Infinity
FAQ
How much does BigCommerce development cost?
BigCommerce development cost depends on the scope of your project. A starter store with theme customisation and basic integrations typically costs $3,000–$8,000. A fully custom build with multiple integrations and custom app development ranges from $8,000–$30,000. Enterprise headless builds start from $30,000. Migration projects cost $3,000–$12,000 depending on data volume and complexity. Ongoing monthly support retainers start from $1,500/month. PerfectionGeeks offers rates 40–60% below equivalent US and UK agencies — contact us for a free project estimate.
How long does BigCommerce development take?
A starter store customisation takes 2–4 weeks. A custom build with multiple integrations typically takes 6–10 weeks. Headless or enterprise projects take 10–20 weeks. Migration projects run 3–6 weeks. All timelines are defined and fixed in the discovery phase — no scope creep surprises.
Is BigCommerce good for large businesses and enterprise?
Yes — BigCommerce Enterprise is built for high-volume operations. It offers unlimited API calls, multi-storefront management, native B2B Edition (quote management, customer group pricing, net payment terms), headless support via Catalyst, and no GMV-based transaction fees. Used by Skullcandy, Black Diamond, and Avery. PerfectionGeeks has configured BigCommerce Enterprise for B2B and wholesale clients across the USA and UK.
What is the difference between BigCommerce and Shopify?
BigCommerce charges no transaction fees on any plan — at $1M GMV that saves $10,000+/year vs Shopify. BigCommerce has native B2B features (quote management, purchase orders, net payment terms) that Shopify requires paid apps to replicate. Shopify has a larger app marketplace (8,000+ vs ~1,000). PerfectionGeeks develops on both and will recommend the right platform for your specific business after a free assessment.
Can PerfectionGeeks migrate my existing store to BigCommerce?
Yes — we have completed 20+ BigCommerce migrations from Shopify, WooCommerce, Magento, and custom platforms. Our process covers full product catalogue transfer, customer records, order history, URL redirect mapping for SEO, and payment gateway reconfiguration — with under 4 hours customer-facing downtime. 30-day post-migration support is included at no charge.