SaaS Product Development
SaaS products that go from a first paying customer to thousands of tenants.
We build the MVP, then the multi-tenant platform underneath it. Billing, onboarding, security and analytics are designed in at the start, because adding them with live customers on the platform is where it gets expensive.
What you end up with
- Launch a credible MVP within months and start learning from paying customers
- Add tenants without anyone setting them up by hand or writing one-off customisations
- Get through enterprise security reviews faster, which shortens the sales cycle
- See which features people come back for, and build more of those
Most projects start with a fixed-price discovery, so you have a scoped plan and an estimate in hand before you commit to a build.
Overview
What a SaaS product has to get right
A SaaS product has to do things an internal system never does. It has to keep one customer's data away from another's, bill accurately, get a new user set up without a phone call, stay up overnight when nobody's watching, and answer a 200-question security questionnaire from a prospect's procurement team. Each of those is a piece of work in its own right, and none of it shows up in a demo.
We've built products for founders starting from zero and for established companies turning something they already sell into a product. The pattern is the same in both cases. Ship a tight MVP quickly and instrument it, so you learn what customers use and what they ignore. Then make the architecture decisions on tenancy, billing, permissions and audit early enough that you can scale without a rewrite.
What's included
The kinds of work this covers.
- 01
MVP scoping and launch
Cut the product down to the smallest thing customers will pay for, ship it in short releases and track what people do with it, so the roadmap follows what they use.
- 02
Multi-tenant architecture
Tenant isolation at the data layer, per-tenant configuration and feature flags, and a model that handles self-serve sign-ups and enterprise accounts with their own contracts and settings on the same platform.
- 03
Billing, subscriptions and usage metering
Stripe or Paddle, plans and trials, seat-based and usage-based pricing, invoicing, dunning, and the metering pipeline that usage billing depends on.
- 04
Onboarding, permissions and admin
Self-serve sign-up, team invitations, roles and permissions, SSO/SAML for enterprise customers, and an internal admin console so your support team isn't asking an engineer to run a database query.
- 05
Security and compliance readiness
Audit logs, encryption, data residency options, vulnerability scanning, and the controls and paperwork that make SOC 2 or ISO 27001 achievable when a deal depends on it.
- 06
Product analytics and growth tooling
Event tracking, funnels, retention cohorts and in-app messaging, wired in from launch, so you can see where users drop off and what they use week after week.
Is it right for you?
A good fit if
- You're launching a new SaaS product and want it built properly the first time
- Your MVP found customers, and now the architecture is what's slowing you down
- You're turning an internal tool or a service into something you can sell as a product
- Enterprise prospects keep asking for SSO, audit logs and security documentation you don't have yet
- You need to add usage-based or tiered pricing to a product that's already live
How we approach it
The steps between a first call and go-live.
Product and commercial discovery
Work out who buys, who uses it and what they'll pay for. We define the MVP scope, the pricing model and the tenancy requirements from that, and write a roadmap that runs from first release to scale.
Foundations first
Tenancy, auth, permissions, billing and audit get designed and built before the feature backlog. They're the parts that are hardest to change once people are paying for the product.
Ship and measure
A release every sprint behind feature flags, analytics on each one, and a roadmap that changes when the numbers say it should.
Scale and harden
Load testing, cost tuning, security controls and operational runbooks as the customer base grows, plus the evidence pack for your first security questionnaire.
Deliverables
What you'll have at the end.
- Product roadmap, MVP scope and pricing/tenancy recommendations
- The production SaaS platform, with source code you own
- Billing and subscription integration with usage metering
- Admin console, audit logging and role-based permissions
- Product analytics and monitoring dashboards
- Security documentation and a SOC 2 readiness gap analysis
Typical stack
The tools we tend to use for this.
Questions
Questions about this service.
How much does it cost to build a SaaS MVP?
Most MVPs we build land between £60k and £200k, depending on how involved the core workflow, billing model and integrations are. Discovery gives you a fixed estimate before you commit, and the roadmap shows what comes after the first release.
How quickly can we launch?
A focused MVP usually reaches its first customers in three to five months. The workflow people pay for comes first. Self-serve polish, integrations and enterprise features get added once there's revenue to justify them.
How do you handle multi-tenancy?
It depends on your customers and their compliance needs. A shared database with strict row-level isolation is the default for self-serve products. Schema-per-tenant or database-per-tenant is there for when an enterprise client needs it. Either way we design so you can move between models later.
Can you help with SOC 2?
We build the technical controls (audit logs, access management, encryption, monitoring, change management through CI) and produce the evidence auditors ask for. You'll still need a compliance platform and an auditor. We work alongside both.
We already have a product. Can you take it on?
Yes. We start with an architecture and code review to find out what will scale and what won't, then agree a plan. Sometimes that means incremental improvement, and sometimes a staged rebuild of the parts that hurt most.
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