What is custom SaaS development?
Custom SaaS development is building a multi-tenant software product you own and sell, with its own subscription billing, tenant isolation, permission model and onboarding, rather than configuring someone else’s platform. The engineering difference from a normal web application is that every table, permission and background job has to be tenant-aware from the first commit.
How long does it take to build a SaaS MVP?
A focused first release typically takes 10 to 16 weeks: two weeks of scoping and data modelling, then build in two-week increments with something demonstrable at the end of each. Anything quoted at four weeks is either a prototype or a scope nobody has examined.
What does a custom SaaS product cost to build?
It depends on the tenancy model, the billing complexity and how many integrations the first release needs, so Nexvix prices it in stages rather than as one number: scoping and data model first, then build in fixed increments. You can stop between increments and keep everything delivered.
Should we build multi-tenant from the start?
Almost always yes. Retrofitting tenant isolation into a single-tenant schema is one of the most expensive rewrites in software, and doing it properly at the start costs days rather than months.
Do you work with our existing codebase?
Yes. A large share of engagements are continuing someone else’s product: we start with a written architecture assessment, name what is safe to build on and what needs replacing, and give you that assessment whether or not you proceed.
Who owns the code and the infrastructure?
You do. Code lands in your repositories from the first week, the product runs in cloud accounts billed to you, and no retainer is required to keep it running after handover.
Can you take over a project another agency started?
Yes, and the honest first step is the architecture assessment rather than a quote. Taking over a codebase without reading it is how a rescue becomes a second failed project.
Do you build the AI features too?
Yes. That is the reason most clients choose Nexvix over a general software shop. Retrieval over your own data, conversational interfaces, document extraction and workflow automation are built by the same team, not subcontracted.
What if we want our own team instead?
Then you want an offshore development center rather than a build engagement. Same company, same engineers, different commercial model. You direct the work and we carry the employment.
How do you handle handover?
Admin credentials transferred to your accounts, source in your repositories with history, an architecture note, the operating guide and a recorded walkthrough. Then a test: two weeks later you change one thing yourself, without calling us.
