Sweet Lemon
Product engineering studio

Working software in weeks, not quarters.

A small senior team shipping MVPs, POCs, internal tools, and dashboards. Fast cadence, clean handoff, code you own. We use AI where it helps. Never where it doesn’t.

Shipping MVPs in 4 weeks · POCs in 1

dashboard.sweetlemon.ai
Active runs
4
+1
Avg. latency
842ms
-11%
Spend
$180
+4%
Throughput · last 24h+18%
Healthy v1.4.2

What we ship

  • MVPs
  • POCs
  • Internal tools
  • Dashboards
  • Workflow automations
  • Integrations

The gap

Most AI ideas never turn into a real product.

The distance between a concept deck and a usable app is where teams get stuck. We close it. Fast, cleanly, and with code you actually want to keep.

Too many tools, no real product

Specs, mockups, and half-built prototypes. None of it compiles into something a customer can use.

Prototypes that look unfinished

Good enough for a pitch, not for a paying user. The polish gap is where most AI projects die.

Timelines that slip for months

Scope creep, vague requirements, and handoff friction turn a 6-week build into a 6-month one.

Unclear scope and bad handoff

Agencies disappear on launch day. You inherit code you can't read and a product you can't extend.

What we build

Six things we do well, end to end.

Every build ships as real, shippable software. Designed, engineered, and handed off clean.

MVPs

End-to-end builds for founders taking a product to early users. Auth, data, core workflows, deployment. Pitch-ready in 4 weeks.

AuthBillingCore loop

POCs

Quick proofs that answer “does this work?” before you invest real engineering time. A working slice in your hands in about a week.

PrototypeValidationTech spike

Internal tools

Admin panels and dashboards that replace five spreadsheets and a Slack thread. Built for the people who use them every day.

Ops consolesReview toolsAdmin panels

Dashboards

Analytics, reporting, and monitoring surfaces. Real-time when it matters, simple when it doesn't.

MetricsReportsMonitoring

Workflow automations

Background pipelines that move data, make decisions, and notify humans. We use AI where it's the right tool; otherwise, we don't.

QueuesScheduled jobsLLM where it fits

Integrations

Clean glue between your stack and the rest of the world. Stripe, HubSpot, custom APIs, internal services.

StripeHubSpotCustom APIs

Selected work

Work we’ve shipped.

Some projects are under NDA; others are in the open. Full case studies land here as clients go public.

Contract · Q3 Renewal · v3
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AI tool

Document-review copilot

Internal copilot that reads contracts and flags risks for a legal ops team.

NDA. Summary on request.

More case studies land here as they clear NDA.

How it works

A short, deliberate process.

No open-ended discovery, no agency theater. Five stages, designed to get you to a real, working product with minimal friction.

  1. 01

    Discovery

    Week 0

    A focused kickoff to align on the real problem, the user, and what “done” looks like.

  2. 02

    Scope & plan

    Week 1

    We translate the idea into a shippable scope, milestones, and a clear architecture.

  3. 03

    Design & build

    Weeks 2 to N

    Design and engineering move together, accelerated by our engineering harness. You see working software the first week, not mockups.

  4. 04

    Iterate fast

    Ongoing

    Weekly builds in your hands. We tighten, cut, and polish against real feedback.

  5. 05

    Launch & handoff

    Final week

    Production deploy, docs, and a clean codebase your team can actually own.

Our harness

The engine behind the work.

We built our own AI engineering harness, a pipeline that drives Claude Code through structured quality gates: spec, context, build, reconcile, tests, QA. It’s how we ship this fast without shipping broken. Published as @sweetlemonai/harness-ai. Open source, MIT licensed.

Pipelinespec → qa
  1. 01
    Spec
  2. 02
    Context
  3. 03
    Build
  4. 04
    Reconcile
  5. 05
    Tests
  6. 06
    QA

Every stage is a quality gate. Work can’t pass without the previous one clearing.

Pricing

Pricing that matches the shape of the work.

Fixed scope for discrete builds, retainer for ongoing partnerships. No seats, no hidden charges.

Easiest way to start

Validation sprint

1 week
$4k

Prove a concept fast, with a working slice real users can touch.

  • Focused scope workshop
  • Interactive prototype
  • Architecture recommendation
  • Clear build roadmap
Most common

MVP build

4 weeks
$10k

An end-to-end MVP, pitch-ready and usable from day one.

  • Design + engineering together
  • Auth, data, core workflows
  • Deployment + basic analytics
  • Weekly ship cadence
  • Clean handoff + docs

Growth build

6 weeks
$20k

A deeper build for teams past the MVP and ready to scale.

  • Expanded product surface
  • AI features + integrations
  • Performance + polish
  • Weekly ship cadence
  • Clean handoff + docs

Larger engagement, retainer, or a team augmentation? Talk to us.

FAQ

Questions, answered.

If yours isn’t here, the intake form below is the fastest way to ask.

How long does a typical build take?

Validation sprints run 1 to 2 weeks. MVPs land in 4 to 8 weeks depending on scope. We timebox aggressively and ship weekly.

What makes you different from other studios?

Two things. First, we built our own engineering harness, a pipeline that drives our tooling through structured quality gates so what ships is production-ready, not prototype-quality. Second, we don’t lock you in: you own the code, we hand it off clean, and you can keep building without us.

Do we own the code?

Yes. You get the full repository, infrastructure, and credentials. We don’t lock you into any platform or keep anything behind a login only we control.

Can you build AI features specifically?

When it fits the problem, yes: agents, retrieval, copilots, classifiers, LLM-powered workflows. We pick models pragmatically. Plenty of our builds have no AI at all; we use the right tool for the job.

Do you handle design?

Yes. Design and engineering work together on every project. You don’t get a deck from one team and a codebase from another.

Mobile or just web?

Mostly web: responsive web apps, admin tools, and portals. If a project genuinely needs native mobile, we’ll scope it honestly or recommend a partner.

What happens after launch?

We hand off cleanly: code, docs, and a walkthrough. Teams that want ongoing help move into a retainer; teams that want to take it in-house, can.

Start a project

Tell us about your idea.

A short guided intake, about five minutes. Start with the idea, no email needed up front. We’ll reply with scope, cost, and a realistic timeline within two business days.

Prefer email? hello@sweetlemon.ai

Step 1 of 5

What stage are you at?

Pick whichever fits best. We'll calibrate from here.