azyware
Engagement & commercialConcept

Time and materials

Also: T&M, Hourly billing

In one sentence

What is Time and materials?

Time and materials is an engagement model where you pay for the hours and resources actually used rather than a fixed outcome, which suits open-ended work but shifts delivery risk onto the buyer.

What Time and materials means

Time and materials (T&M) bills you for the effort spent: a day rate or hourly rate per engineer, plus any direct costs such as cloud usage or model inference. There is usually an estimate, but the estimate is not a commitment. If the work takes longer, the invoice grows. If it finishes early, you pay less.

It works well when nobody can honestly define the outcome in advance: research spikes, ongoing product development with a changing roadmap, or embedding engineers into an existing team. Our dedicated pod model is a form of T&M with a monthly retainer, because a pod's backlog is set by your product team, not by us.

T&M is not the same as fixed price, fixed date, and it is not automatically cheaper. Without a clear backlog and weekly review, T&M engagements drift, and the buyer discovers the overrun only when the invoices arrive. We default to fixed-price programs for defined outcomes and use T&M only where the scope genuinely cannot be locked.

Who it really matters to

  • CFO: costs are variable and open-ended, so you need a monthly budget ceiling and reporting to avoid surprises.
  • CTO / Head of Engineering: T&M gives you control of priorities week to week, but you also own the outcome if the backlog is unclear.
  • Product manager: a changing roadmap fits T&M better than a fixed scope, provided you review burn against progress every sprint.
  • Founder / CEO: the model is easy to start and easy to stop, which suits early exploration before you commit to a larger build.

Why it exists

Time and materials exists because some work cannot be scoped honestly before it begins. Forcing a fixed price onto genuine research produces either padded quotes or disputes. T&M lets both sides start quickly and adjust as they learn. The trade-off is that the buyer carries the risk of overrun and must actively manage the engagement. We use it for pods and for exploratory work, and we recommend a fixed-price program for anything with a definable outcome, because a fixed scope forces the hard prioritisation conversations to happen before money is spent rather than after.

Where it is applied

  • A SaaS company retaining a two-engineer pod to extend an existing copilot feature set across quarterly roadmap changes.
  • A FinTech running a research spike on open-weight models for bank-statement analysis before deciding on a production build.
  • A logistics operator embedding an engineer into its in-house team for ongoing dispatch-platform improvements.
  • A retailer paying by the hour for peak-season load testing and tuning where the effort depends on what the tests reveal.
  • An education platform funding continuous content-generation tooling that evolves with each academic term.

Is Time and materials a skill?

ConceptA commercial model, not a skill. At Eazyware it appears as monthly dedicated-pod retainers and occasional research spikes; defined outcomes are delivered under fixed-price programs instead. Pods are described on the pricing page.

Eazyware service that covers it: Pricing. Starting prices are on the pricing page.

Frequently asked questions

When would Eazyware recommend time and materials over fixed price?

When the outcome cannot be defined yet: research spikes, an ongoing roadmap with shifting priorities, or a pod working inside your team. For anything with a definable deliverable, we recommend a fixed-price program.

How do you stop a T&M engagement from overrunning?

A monthly ceiling, a written backlog owned by you, and a weekly burn-versus-progress review. If burn outpaces progress for two consecutive weeks, we pause and re-plan rather than keep invoicing.

Related reading

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