§ Service · Ecommerce Systems

Ecommerce Systems

Custom storefronts, checkout flows, inventory systems, and the backend infrastructure that powers online commerce.

Timeline
8–14 weeks
Team
1 partner · 2–3 seniors
Outcome
A shipped, measured system
§ system · live
retrieval.rag
eval.suite
agent.executor
observability
Built to be audited.
§ 01 — Overview

We design the system, not just the surface.

We build ecommerce platforms tailored to your business — not constrained by off-the-shelf template limitations. Custom product catalogues, checkout flows, payment integrations, inventory management, and the operational backend that keeps it all running.

Whether you are launching a new store or rebuilding an existing one, we focus on conversion, performance, and operational efficiency.

§ 02 — Process

Phases, written down.

Every phase has a deliverable your team can review.
PHASE 01

Diagnose

Two weeks with your team, your data and the workflow we'd automate. We leave with a written problem statement and a yes/no recommendation.

Deliverables
· Problem brief
· Risk register
· Fixed-fee estimate
2weeks
PHASE 02

Design the system

Architecture, data flow, prompt structure, eval design and the review-console UX documented before a line of production code is written.

Deliverables
· System diagram
· Eval spec
· Review prototype
2weeks
PHASE 03

Build & evaluate

Retrieval, agents, guardrails and the review console built in parallel. Weekly demos against the eval suite — no cherry-picked screenshots.

Deliverables
· Working system
· Weekly eval reports
· Ops documentation
4–8weeks
PHASE 04

Rollout with guardrails

Staged rollout — shadow mode, then partial traffic, then full. Your team owns the rollback. Incident runbooks written and rehearsed.

Deliverables
· Rollout plan
· Runbooks
· On-call rota
1–2weeks
PHASE 05

Operate or hand over

A clean handover with your team trained on the eval harness — or an ongoing retainer if the model landscape keeps moving.

Deliverables
· Training sessions
· Retainer terms
· Roadmap
1week or retainer
§ 03 — FAQ

Questions we hear.

The things teams ask on every intro call. Still curious? get in touch.

What services does QuadCore offer?

We offer web development, mobile app development, cloud solutions, AI and machine learning, DevOps, and cybersecurity services. Each engagement is tailored to your specific needs — from greenfield builds to legacy modernisation.

How do you typically structure a project?

Most projects start with a 1-2 week discovery phase where we define scope, architecture, and milestones. We then work in 2-week sprints with regular demos and check-ins. You will have a dedicated project lead and direct Slack access to the team.

What technologies do you specialise in?

Our core stack includes modern server-side frameworks, reactive frontend technologies, and PostgreSQL for web applications. For mobile, we use React Native and Flutter. For cloud, we work across AWS, Azure, and GCP. We choose the right tool for each project rather than forcing a one-size-fits-all approach.

Can you work with our existing team?

Absolutely. Team augmentation is one of our most popular services. We embed senior engineers directly into your team — same tools, same processes, same standup. Most clients cannot tell the difference between our engineers and their own.

How much does a typical project cost?

Project costs vary widely based on scope and complexity. A simple web application might start at $30k, while a complex SaaS platform could be $150k+. We provide detailed estimates after the discovery phase and work with both fixed-price and time-and-materials models.

Do you offer ongoing maintenance and support?

Yes. We offer retainer-based support packages starting at 20 hours per month. This covers bug fixes, performance monitoring, security updates, and small feature requests. Many clients use this to keep their applications healthy between major feature releases.

Ready to build together?

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