Ship weekly without breaking last week.
A SaaS prototype only has to work once. A SaaS product has to keep working for every customer, every week, while you keep changing it.
What usually breaks.
Tenant isolation by convention
Every query filters by tenant id because the developer remembered to. One forgotten where clause and customer A is reading customer B's data.
Billing that only handles the happy path
Upgrades work. Mid-cycle downgrades, failed cards, refunds, proration, and cancellations during a trial all do something nobody has thought about.
Migrations that need downtime
Every schema change means a maintenance window, so changes get batched up, so each release is bigger and riskier than the last.
What we'd do about it.
Bug Fixing & Code Rescue
Tenant isolation enforced at the data layer rather than by discipline, plus billing logic that handles the unglamorous cases correctly.
Deployment & DevOps
Zero-downtime migrations, feature flags, and a deploy pipeline that makes shipping on a Friday a non-event.
QA & Testing
A regression suite covering signup, upgrade, downgrade, and cancel, so revenue paths cannot silently break.
Fair things to ask.
How do you check tenant isolation?
By deliberately trying to reach another tenant's data from every entry point: API, exports, search, background jobs, the lot.
Our billing edge cases are a mess.
Proration, mid-cycle downgrades, failed cards, refunds and trial cancellations. It's the unglamorous half of billing and it's where revenue quietly leaks.
Can you do zero-downtime migrations?
Yes. Expand, migrate, contract. The goal is that you stop needing maintenance windows at all.
We want to ship weekly.
Then you need feature flags and a regression suite covering signup, upgrade, downgrade and cancel. Both are part of the work.
Will you touch our production database?
No. We work against a copy and you run the migration.
Can you wire up our analytics?
Yes, and we'll tell you if you're currently sending personal data to it, which is more common than people expect.
Can you improve our onboarding conversion?
We can fix the mechanics: speed, dead ends, broken states. What to actually say to a new user is your product's job, not ours.
Do you work alongside our existing team?
Yes, and usually that's the better arrangement. They keep the context; we take the backlog nobody has time for.
Working on something in SaaS?
Send us the repo. We'll tell you what's wrong with it before you commit to anything.
Start a handoff