devkyn — senior dev studio on subscription
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Engagements - Projects we take end to end

Some work is bigger than a single task. An MVP. A marketplace. A billing system. A rebuild. These are scoped, multi-week builds a senior engineer ships week by week — on the same flat monthly plan, not a new contract track. Not a portfolio: the engagements we build.

Founder-led, no junior hand-off
Senior only
Ships in increments you review and merge
Weekly
From $6,900/mo — no per-project quote
Flat monthly
No SOW, no contract, no lock-in
Pause anytime
Product build6–8 weeks typical

SaaS MVP Build

A live, paying-customer-ready SaaS: auth, billing, a real dashboard, and a deploy you own.

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Internal platform5–8 weeks typical

Internal Tools & Admin Platform

The internal system your team runs on — admin console, client portal, and dashboards — replacing the spreadsheets and manual database edits.

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Product build6–10 weeks typical

AI Product Build

A production AI product wrapped around your model: streaming UI, a RAG pipeline, usage metering, and billing you can charge on.

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Migration & rebuild4–8 weeks typical

Next.js App Router Migration

Your app on the App Router — Server Components, correct caching, green Core Web Vitals — migrated incrementally with nothing frozen.

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Payments build4–7 weeks typical

Stripe Billing System

A billing system you trust: subscriptions, metered usage, proration, dunning, and webhooks that never drop or double-charge.

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Product build8–12 weeks typical

Marketplace Platform

A working two-sided marketplace: Connect payouts, buyer and seller flows, search that matches supply to demand, and a dispute path.

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Product build5–8 weeks typical

Productized Service Platform

The platform behind your productized service: a client dashboard, an order queue, subscription billing, and a delivery workflow that runs without you.

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Agency delivery4–10 weeks typical

White-Label Agency Build

A client build shipped under your agency's name: senior engineering in your repos, invisible to the client, done on schedule.

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Product build6–10 weeks typical

Enterprise-Ready SaaS Build

The enterprise features that close deals: SAML/OIDC SSO, RBAC, tamper-evident audit logs, and data export — built to survive a security review.

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Migration & rebuild8–12 weeks typical

Legacy App Rebuild

A modern app on a maintainable stack, cut over in stages — the old system live until the new one is proven, no big-bang rewrite.

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One offer, two ways to use it

A build isn't a different plan — it's the board dedicated to one system for a stretch of weeks, shipping weekly. Same senior engineer, same flat monthly price, same pause-anytime terms. Need a single feature instead? That's the same subscription in task mode. Not sure which you need? Browse what we build or tell us the outcome.

Got a project? Let's ship it.

3 spots open. Subscribe today, hand off the first outcome, and we'll ship it in weekly increments. Smaller tasks still usually land in 48 to 72 hours. No call required.

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