Independent studio • UK • product-led engineering
We design and build platforms that ship — and keep running.
SixByFive is a small studio building collector-first products, workflow portals, and the internal tooling that makes data and operations reliable.
Selected work
Products and portals in production
A small set of shipped systems — presented as outcomes, not experiments.
SixByFive TCG Platform
A collector-focused platform to search sets/cards, track collections, build binders, and keep pricing aligned across multiple sources.
- Next.js frontend
- GraphQL API layer
- Pricing + metadata pipeline
3D Printing Portal
A workflow-first portal for quoting and job management, including uploads and operational tooling to reduce manual admin.
- Forms + uploads
- Admin workflow
- Email + notifications
Tooling
The systems behind the systems
Internal tooling that keeps data accurate, operations fast, and releases safe.
Pricing + metadata pipeline
Scheduled ingestion, caching, and rollups to keep card data consistent across sources and reduce API load.
- Daily/weekly rollups and “latest” tables
- FX conversion and provider normalization
- Integrity checks + backfills
Cardmarket browser extraction tooling
A browser-based export tool used to extract and merge Cardmarket product IDs across paginated set listings — designed for fast reconciliation and fewer mapping errors.
- Delivered as a Tampermonkey userscript
- Handles pagination + merges base/variant buckets
- Exports clean ID maps for ingestion/QA
Bulk add + workflow UIs
Collector-first admin views that accelerate catalogue and collection operations without breaking data integrity.
- Bulk add flows with validation
- Moderation + marketplace workflows
- Audit-friendly entry histories
Monitoring + error logging
Guardrails and visibility so background jobs and integrations can be trusted long-term.
- Job retries and failure reporting
- Upload + email error tracking
- Actionable logs (not guesswork)
Capabilities
What we deliver
Clear scope buckets that make it easy to understand how we can help.
Product engineering
End-to-end product delivery: UI, backend, auth, data modelling, and a clean release path.
Platforms & pipelines
Scheduled jobs, ingestion, reconciliation, caching, and the tooling that keeps data trustworthy.
Integrations
Stripe, Discord, Shopify, WordPress, and external APIs — integrated without spaghetti.
UI systems
A consistent component system, responsive layouts, and UX details that feel premium.
Delivery
How we work
Simple, structured, and designed to ship without chaos.
1) Define the milestone
Tight scope, clear acceptance criteria, and an agreed first release worth shipping.
2) Build + iterate
Components + API contracts first, then refinement. No “big bang” rewrites.
3) Ship + maintain
Logging, monitoring, and maintenance pathways so the product stays healthy.
Contact
Want to collaborate?
If you’re building something that needs to ship and keep running, we can talk through scope, timeline, and a sensible first milestone.
Typical first step: a short scope call → a single milestone → ship.