S-ONESOFT is a software studio in Ho Chi Minh City. We ship and run our own products, starting with ShopSphere, and work as the engineering team behind other companies’ web apps, integrations and backends.
Our mark, read as a map: products on top, client work below, one block left open for yours.
Same team, same standards. What we learn running our own products goes into the work we do for clients.
Software we design, build and operate ourselves. ShopSphere is the first; more are on the way.
A feature to ship, an integration to build, a codebase to take over. We join your team as a small, hands-on engineering unit, working remotely from Ho Chi Minh City.
One product in testing, more on the way. Each one gets its own site with the full story.
Ties every listing to a single SKU and writes price and stock to each channel from that one record, so no two systems ever fight over a number. Shopify comes first; Etsy, TikTok Shop, Shopee and Amazon follow.
Visit the ShopSphere site ↗It gets a full card here, and a site of its own, once there is something real to show.
Most of our work is e-commerce: marketplace APIs, store integrations and SaaS for online sellers. It is the stack we run in production every day.
SaaS products, dashboards and internal tools, from the first screen to production.
Marketplace and store APIs, webhooks, and sync jobs that keep two systems in step.
Services, queues, databases and container deployments, built to be read and maintained.
Inherit an existing codebase: add tests, fix what is broken, and keep shipping.
A written scope and a fixed price before any code is written.
An engineer on your team, in your tools, your stand-ups, your repository.
Small tasks and trial work, with Upwork handling contract and payment.
No account managers, no hand-offs. The engineer who scopes your project is the one who builds it.
A call or a few emails to understand the problem, the codebase and the deadline.
A written plan: what gets built, in what order, what it costs and when you see it.
Weekly demos and small pull requests you can read. You always know what is built, in testing and next.
We deploy, watch it run, and stay on for fixes and the next round of features.
We work directly in your repository and accounts, so everything we write is yours.
ShopSphere’s sync engine runs on several hundred automated tests. Client code gets the same discipline.
We build with Claude Code, Anthropic’s coding agent, and review every change ourselves before it merges.
Tell us what you are working on. The reply comes from the engineer who would build it.
We reply in English or Vietnamese, from Ho Chi Minh City (GMT+7).