Dedicated e‑commerce engineering
Permanent engineering teams for storefronts that carry real revenue.
One team. The same engineers, month after month — not a rotating bench.
One system. We learn your stack in depth and stay with it.
One line of ownership. Load time, error rate, uptime — ours to answer for.
Position
A storefront is not a project with an end date. It is infrastructure. It carries your catalogue, your pricing logic, your stock, your payments and every campaign you run. Hand that infrastructure to a rotating cast of contractors, or to an agency juggling six parallel accounts, and you pay for it in outages and lost weeks.
Petra Commerce works in one model only: a fixed team that stays. The same engineers, the same architect, the same person to call. Reachable in your Slack, predictable in your monthly budget, and accountable for numbers rather than tickets.
Services
Core model
Two to six fixed people — engineering, architecture, QA and a lead. Trained on your stack, priced as a monthly retainer, with no per-ticket haggling and no placement mark-up.
Replatforming
Moves between Shopware, Shopify Plus, commercetools and custom builds — including data migration, a redirect plan and SEO cover through the cutover window.
Architecture
Decoupled storefronts on Next.js or Nuxt over a clean API layer — recommended only when the case supports it, not because it sounds modern.
Performance
Measured work on LCP, INP and CLS: render path, image pipeline, third-party budget. Reported as before-and-after field data, not lab screenshots.
Conversion
Payment methods, shipping rules, tax edge cases, B2B pricing — plus properly powered tests instead of gut feel and a colour change.
After launch
We stay after go-live: alerting, an error budget, on-call cover through peak trading, and a monthly report your finance team can actually read.
Commitments
Engagement
Code review, architecture map, analytics reconciliation, risk list. You get a written finding with an effort range — including when it argues against hiring us.
Staffing, handover, environments, pipelines, monitoring. From week three the team ships its first changes to production.
Fixed cycles, fixed cost, a roadmap reviewed each quarter. Cancellable on 30 days' notice, with a documented handover and no exit fee.
| Criterion | Contractor | Project agency | Petra team |
|---|---|---|---|
| System knowledge | tied to one person | resets each project | stays in the team |
| Availability | uncertain | subject to utilisation | contractually reserved |
| Accountable for | the task | the sign-off | the metric |
| After go-live | usually ends | separate support deal | same team, same terms |
| Commercials | day rate | project fee | monthly retainer |
Where it fits
These are the briefs we take. They describe the scope of an engagement, not a claim about past accounts.2
A grown storefront on an ageing system: every change costs three days, the theme is a decade of patches, and nobody wants to touch checkout. We plan the move, migrate the data, hold the redirect map and run the cutover — with the old system live until the new one proves itself.
Customer-specific pricing, framework agreements, quotes and invoice terms — inside a platform that was never designed for them. We put a thin pricing service in front of the shop and build the ordering path your key accounts actually need.
Paid spend rising, mobile conversion falling, and a storefront that takes seconds to become usable on a real connection. We audit the render path, rebuild the image pipeline, put a hard budget on third-party tags and report the field data each month.
Capabilities
We keep the list short on purpose. What we offer, we run in production. For anything else we will point you to someone who does it better.
Questions
Petra Commerce LLC was formed in Wyoming in July 2026, and we would rather say so than dress up a history we don't have. The engineering experience behind it is not new — the company is. That is exactly why every engagement opens with a fixed-price, two-week assessment: you get a written technical finding and a working sample of how we think before you commit to a retainer. If the finding says you don't need us, it says so.
Usually once internal requests pile up faster than they can be delivered — in practice, somewhere north of a few million in annual revenue. Below that, a smaller maintenance arrangement is the more honest answer, and we will tell you that in the assessment rather than sell you a team you don't need.
A monthly retainer scaled to team size, quoted after the assessment so the number is based on your codebase rather than a guess. The Phase 01 assessment is billed separately at a fixed price and credited against the first invoice if you go ahead.
Yes — that is the normal case. Marketing, content and design usually stay where they are. We take the technical side and the responsibility for operations, and we put the interfaces and areas of ownership in writing at the start.
Entirely. All rights to source code, infrastructure definitions and documentation sit with you, in your repositories and your cloud accounts. We do not introduce proprietary components that make leaving us expensive.
Typically four to six weeks after the assessment. If something is actively broken in production, we can place one engineer on stabilisation straight away while the full team is assembled.
Petra Commerce LLC is registered in Wyoming, United States, and works remotely with clients in Europe and North America. Working language is English. Documentation, code and reporting are written, not verbal — so nothing important lives only in someone's head.
Contact
An intro call takes 45 minutes and costs nothing. Afterwards you will know whether we're a fit — and what to fix first either way.