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Stacklane
Product engineering for SaaS teams

Scale your SaaS product without expanding your engineering team.

Multi-tenant architectures, Stripe billing, integrations to Salesforce and HubSpot. We ship SaaS features daily from week one. One subscription, senior team, pause any time.

From multi-tenant patterns to Stripe billing, the SaaS surfaces we ship

API-first DevelopmentMulti-tenant ArchitectureStripe BillingDashboard & Analytics FeaturesWhite-label PlatformsDeveloper Platforms & APIsB2B SaaS & Enterprise SoftwareSubscription & Recurring Revenue PlatformsAPI-first DevelopmentMulti-tenant ArchitectureStripe BillingDashboard & Analytics FeaturesWhite-label PlatformsDeveloper Platforms & APIsB2B SaaS & Enterprise SoftwareSubscription & Recurring Revenue Platforms

Three ways to ship software today. Stacklane is the fourth.

In-house hiring

Months of recruiting, then onboarding, then attrition. By the time the team ships, the market has moved.

We start this week, AI-native, production-grade.

Freelancers & marketplaces

Quality varies. No ownership. They disappear mid-project, and the next one inherits a brittle codebase.

We own delivery, not just tasks.

Vibe-coding studios + legacy agencies

Vibe coders ship demoware that breaks in production. Legacy agencies bill hours and pretend AI doesn't exist.

AI speed, senior judgment, real software.

You focus on growth. We ship real software.

SaaS surfaces

The patterns we ship for SaaS teams

Multi-tenant patterns are the default, not the upgrade. We've built the systems below into production SaaS for operators, marketplaces, and B2B platforms.

01

Multi-tenant architecture

Row-per-tenant or schema-per-tenant, audit-aware queries, tenant-scoped permissions throughout the stack.

02

Stripe Billing + revenue infrastructure

Subscription, usage-based, seat-based pricing. Webhooks, dunning, proration, tax. The whole revenue stack.

03

Integrations on rails

Salesforce, HubSpot, Slack, Segment, Zapier endpoints. Webhook receivers and senders that survive at scale.

04

Operator consoles

Internal tools that scale with the customer base. Admin search, impersonation, audit log, billing override.

05

Onboarding + provisioning

Invite flows, role-based access, organization switching, SSO, audit-trailed user lifecycle.

06

White-label theming

Multi-brand from one codebase. Domain-scoped tokens, per-tenant assets, isolated configuration.

How it works

From idea to shipped features

A straightforward way to build and scale your product, without hiring or long-term commitments. Many clients get their first features shipped the day they get onboarded.

01

Book a call

We discuss your goals, timeline, and technical needs to see if Stacklane is a good fit.

02

Subscribe & onboard

Start with a monthly subscription. We onboard quickly and integrate with your team and tools.

03

Build & ship

We work from a shared task list and deliver progress daily, with clear communication throughout.

04

Scale or pause anytime

Need more speed or less capacity? Adjust, pause, or cancel, no long-term contracts.

Our benefits for SaaS

From roadmap to live features, every month.

Product development that helps your SaaS grow faster.

AI-native

delivery

AI in the loop from spec to ship: generation, review, refactors, tests, docs. Faster than agencies built before the AI era, without the brittleness vibe coding leaves behind.

Production

grade

Architected, reviewed, tested, owned. Real software you can keep. Not demoware, not prototype code that ships, not unreviewed AI output sent to your customers.

Daily

shipping

Features land every working day, not at quarter-end. Continuous progress visible in your repo, not in a slide deck. Pause with 7 days notice.

End-to-end

ownership

Accountable for what ships, not what gets coded. Discovery, design, build, deploy, maintain. One subscription, one team that owns the outcome.

Our Pricing

Engineering is the anchor. Design is an add-on.

One subscription for delivery. Add Product Design when the UI needs the same craft as the system underneath.

Product Engineering Subscription
6,000
Billed monthly
Book a Free Call
  • Full-Stack Web Development
  • Mobile Apps (iOS & Android)
  • Backend, APIs & Infrastructure
  • Technical Consulting & DevOps

Pause or cancel anytime

Product Design

4,000/ month

Brand, product, motion, and everything between.

Book a Free Call

All-in

Save €2,000/mo
8,000/ month

Design and engineering on one cadence. No handoff drift.

Book a Free Call
Stacklane is one of the best engineering teams we’ve worked with. We’ve thrown every kind of project at them and they deliver every time.

Fast, clean, and they understand the startup and business ecosystem beyond engineering.

Ryan Schneider
Ryan SchneiderCEO, Paragon Group

Already a client?Refer one and earn 10% every month

Questions & answers

Frequently Asked Questions

01

How fast will I receive results?

We usually start the same day after onboarding. You'll see progress daily and weekly, with features and improvements delivered continuously based on your backlog and priorities.

02

Who will work on my product?

Senior engineers, 8+ years in production, with AI in the loop end-to-end. We use the AI tooling, we own the architecture, and we sign the review on every PR. Stacklane takes full responsibility for engineering delivery.

03

Is there a limit to how many requests I can make?

No, you can submit as many requests as you want.

04

How do you handle larger requests or features?

Large features are broken down into smaller milestones and delivered step by step. You always see progress and can adjust priorities as we go.

05

Can agencies use this as a white-label solution?

Yes. Agencies can work with Stacklane as a technical partner and offer our engineering services under their own brand if desired.

06

What if I only have a single request or small project?

We also offer one-off projects with fixed pricing. If you don't need ongoing development, a one-off project may be a better fit.

07

What if I don't like the result?

We work closely with you and iterate based on feedback. Our goal is to build software that fits your needs, not just deliver code.

08

Are there any requests you don't support?

We focus on software development and product design. We are not a good fit for simple marketing websites, very small design-only tasks or non-software services. If you're unsure, we'll help you determine fit during the discovery call.

09

How do we communicate and request work?

You submit requests through a shared backlog or project board. We communicate through tools like Slack, email, and regular check-ins.

10

How does pricing work?

Stacklane works on a flat monthly subscription: predictable pricing, no hidden fees, no long-term contracts. You can scale up, pause, or cancel at any time.

11

Are there any refunds?

We don't refund time already worked. Pause or cancel any time to avoid future charges; both take effect from the next billing cycle.

Discovery Call

Let's grow your SaaS faster.

Stacklane helps SaaS companies build features, deliver integrations, and improve platforms with predictable pricing and continuous delivery.

Book a Free Call