- Shopify builds
- Headless stores
- Site speed
Shopify
Shopify Partner for build, launch and growth
What we cover
- Integrations: payment gateways, shipping carriers and multiple payment methods for a secure, fast checkout and fulfillment flow.
- Marketing support: SEO, social integrations and campaign execution that build reach and organic traffic.
- Store design: themes tailored to your brand, tuned for every device, so your store stands out.
Expert technical support
- We know Shopify's architecture and APIs inside out, respond fast to issues and keep your store running.

Storefronts
Custom storefronts on open-source commerce frameworks
Custom storefronts, tailored at every layer.
- Modular design with zero commission. You keep your revenue.
- Self-hosted deployment for stronger data security and control.
- Multi-language and multi-currency, with integrations built in.
Built for brands selling worldwide.

Site speed
Web performance experts
We find the real bottlenecks and improve response time and stability.
- Asset compression, lazy loading and CDN delivery for faster loads.
- HTTPS hardening, XSS protection and CSP to protect data and privacy.
- Cleaner structure and semantics for accessibility on every device.
PageSpeed and Lighthouse analysis, plus a tailored plan to lift conversion.

About FXTech
Engineering for cross-border e-commerce
FXTech (Shenzhen Feixing Keyao Technology Co., Ltd.) is a Shenzhen agency and Shopify Partner. We build Shopify Plus stores, headless storefronts, faster sites and VAT systems for global brands.
- E-commerce clients served
- 100+
- Core engineers' web experience
- 10+ years
- Building DTC storefronts
- 5+ years
- Official Partner
- Shopify
How we work
Clear steps from brief to launch
- 01
Discovery
We learn your goals, markets, current systems and budget, and define the core problem to solve.
- 02
Proposal and quote
We recommend a stack (Shopify or open source), set scope, milestones and a quote, and start once you approve.
- 03
Design and development
We ship by milestone, with regular demos and your sign-off at key points.
- 04
Testing and launch
Functional, cross-device, performance and SEO checks, then we monitor core metrics after launch.
- 05
Ongoing support
Fixes, new features and performance tracking as your business grows.
Case studies
Recent projects
Cross-border tax services · VAT Solutions / Custom Systems
Tax compliance SaaS: seller portal and operations back office
We built a compliance platform from scratch for VAT registration / agent transfer, tax calculation, filing, payment, EPR and authorized representatives. Sellers now order and track services online.
Cross-border sourcing / supply chain · Custom Systems
Four-party supply chain order tracking, launched in 15 days
An order, production and logistics platform linking overseas merchants, Chinese factories and freight forwarders, replacing scattered group chats with one order timeline.
LED lighting / B2B export · Web Performance
B2B export site performance: homepage TTFB 17.96s → 0.94s
We diagnosed and optimized a PHP B2B site hosted in Germany, layer by layer through the database, video, images and front-end assets, cutting homepage response time and page weight.
FAQ
Common questions about FXTech and how we work.
What kind of company is FXTech?
FXTech (Shenzhen Feixing Keyao Technology Co., Ltd.) is a Shenzhen e-commerce engineering agency and Shopify Partner. We help cross-border sellers and global brands with Shopify / Shopify Plus development, headless DTC storefronts, web performance optimization and cross-border VAT compliance systems.
Who are your clients?
Mostly cross-border sellers and global brands, from early-stage DTC stores to established brands that need custom systems. We have served 100+ clients in fashion, beauty, electronics and home goods.
Should I build on Shopify or an open-source storefront?
If you want to launch fast, run lean and your processes fit the Shopify ecosystem, Shopify / Shopify Plus is usually better. If you need more control over the shopping experience, workflows, data or platform fees, consider a headless storefront on MedusaJS or similar. We recommend based on your stage and team.
Can you optimize performance without rebuilding the site?
Yes. Performance optimization is a standalone service. We set a Core Web Vitals baseline (LCP, INP, CLS, TTFB), find the bottlenecks, optimize images, JavaScript, CSS, caching and CDN on your existing site, and track metrics before and after. It works for Shopify stores and custom sites.
How do we get started, and how is pricing set?
Reach us by Telegram, email or phone on the contact page. We discuss your goals and current setup, then send a proposal and quote based on scope. Customization varies widely between projects, so we do not offer fixed packages.
Do you work in English and with overseas teams?
Yes. We work in Chinese and English and collaborate remotely with overseas operations, design and engineering teams.
FXTech