What we build
Custom storefronts, custom plugins, multi-channel infrastructure, and the engineering depth retailers need when a templated theme stops being enough.
OST's largest vertical by client count. 29+ e-commerce engagements across Shopify, WooCommerce, Magento, OpenCart, and fully custom-built platforms. Custom plugins, third-party integrations, and platform-specific engineering across the stack.
Bespoke payment plugins where the off-the-shelf gateway does not fit your workflow. Tokenization, vault integration, payment-flow customization. Pattern from the Fire Mountain Solar custom payment plugin.
Sync stock and orders across your storefront, Amazon, marketplaces, and POS. Real-time inventory reconciliation, dedup logic, and the integration plumbing to stop overselling.
Tokenization and vault integration to route through PCI-compliant processors and minimize cardholder data scope on your own infrastructure. Stripe, PayPal, Authorize.Net, Square, and custom processors.
WCAG 2.2 AA conformance for e-commerce sites. Pre-emptive scope, not post-letter triage. Color contrast, semantic markup, keyboard navigation, screen reader support, and category-page accessibility.
Performance, structured data, schema markup, and organic visibility for product and category pages. Pattern from the Fire Mountain Solar ongoing SEO engagement.
Conversational product discovery, AI-powered FAQ, and customer service automation. Live AI assistant pilots in production for active retailers. Configurable per category, language, and policy.
iOS, Android, and cross-platform commerce apps. Native checkout, push notifications, saved carts, and delivery tracking. Built for retailers whose buyers complete a meaningful share of purchases on mobile.
Magento 1 end-of-life moves, legacy custom carts, and full platform replatforming to Shopify, WooCommerce, or a modern custom stack. Done without breaking the catalog, the SEO, or the orders in flight.
AI assistant for e-commerce
Turn product discovery into a guided shopping experience with an AI chatbot built for e-commerce and online retail. It understands shopper intent, corrects spelling, recognizes product attributes such as color and size, and helps customers find the right products faster.
From personalized recommendations and live price or inventory information to shipping and return support, the AI chatbot helps reduce friction, support conversions, and keep shoppers moving toward purchase.
An AI chatbot that helps shoppers compare products, understand differences, and find the right fit faster.
~$129
Lightweight daily trainer with soft cushioning.
~$149
Cushioned for comfort on long runs.
~$139
Responsive and stable for everyday runs.
~$119
Versatile comfort for training and walking.
| Shoe | Best for | Feel | Approx. price |
|---|---|---|---|
| StrideFlow Relay 2 | Best overall | Soft, bouncy, energetic | ~$129 |
| Nimbus Run Pro | Longer runs | Cushioned, smooth | ~$149 |
| PaceLift Active | Running + walking | Plush, stable, comfortable | ~$139 |
| VoltStep Daily | Daily training | Responsive, versatile | ~$119 |
AI-powered shopping assistance
Give shoppers more relevant product choices with AI-powered recommendations based on your catalog, inventory, pricing, and customer behavior. From trending products and personalized suggestions to cart recovery, frequently bought together items, and multilingual support, the AI chatbot helps create a smoother shopping experience and supports more conversions.
Gives shoppers current pricing, availability, and inventory information while they browse.
Suggests relevant products based on shopper intent, preferences, browsing behavior, and context.
Instantly answers questions about products, specifications, sizing, availability, policies, and more.
Recommends similar or suitable alternatives when a product is unavailable or does not meet the shopper's needs.
Re-engages shoppers with helpful reminders and relevant product suggestions to encourage checkout completion.
Surfaces applicable discounts, promotions, special offers, and available deals during the shopping journey.
Understands natural-language searches to help shoppers find the right products faster.
Recommends complementary, upgraded, or frequently purchased products to increase order value.
Answers questions about shipping options, delivery times, returns, exchanges, and store policies.
Modeled projections
More recovered carts
More returning shoppers
Increase in assisted conversions
Faster customer response times
One AI assistant
Connect with shoppers across website chat, WhatsApp, email, Instagram, and Messenger from one AI-powered experience. Help customers discover products, get quick answers, recover abandoned carts, and move toward purchase — wherever the conversation starts.
On-site AI that guides and converts.
See in action1:1 chats that sell and recover.
See in actionAutomated replies that sound human.
See in actionDMs that answer and sell.
See in actionChats that turn replies into orders.
See in actionFeatured engagement
Fire Mountain Solar is one of OST's anchor e-commerce engagements. Custom commerce platform, a payment plugin we engineered for their specific workflow, and continuous SEO partnership across the storefront. Clutch verified.
Custom commerce platform tuned to the solar industry's unit economics and category structure. A custom payment plugin engineered for their specific approval flow. Continuous SEO engineering across product structure, content architecture, and Core Web Vitals. One team, one source of truth across all three.
Build + plugin + SEO · one team Other e-commerce clients
A selection of e-commerce clients beyond the featured engagement above. OST's largest vertical by client count. Full named-reference list available to qualified prospects under mutual NDA.
Active e-commerce clients across platforms — OST's largest vertical by count
Custom plugins and platform integrations shipped across engagements
Pilot live in production for an active retailer
Compliance scoped on every checkout-handling engagement
E-commerce-sector compliance
Compliance we have experience implementing on e-commerce engagements. Specific compliance is scoped per contract based on what your platform handles, where your buyers are, and what categories you sell. See the Trust Center for the broader posture.
Scoped per integration. We route through PCI-compliant processors (Stripe, PayPal, Authorize.Net, Square, custom) to minimize cardholder data scope on your own infrastructure. Tokenization and vault integration as standard.
ADA accessibility for e-commerce. The most-sued vertical for digital accessibility. We design for conformance pre-emptively rather than triage after a demand letter.
California buyer PII, opt-out, right-to-know, right-to-delete. Other state laws (Virginia, Colorado, Connecticut, Utah) picked up where applicable.
Opt-in consent, cookie compliance, right-to-delete, and data subject access request workflows for stores selling into the EU and UK.
Avalara, TaxJar, and platform-native tax engines integrated and scoped per state nexus rules. Cross-border VAT, GST, and tax registration workflows when applicable.
FDA-regulated supplements, FTC advertising rules, age-gating for alcohol and tobacco, state-by-state restrictions for regulated categories. Scoped per the categories your platform sells.
60-minute discovery call. We will walk through your stack, channel sprawl, custom plugin needs, PCI scope, and what one-stop-shop e-commerce engineering actually looks like.
