FRACTIONAL CTO vs INTERIM CTO

Fractional CTO vs interim CTO: which one does your company actually need?

We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Our fractional roles put senior product or technical decisions with a named founder, within an agreed remit.

Plan your first milestone with us
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Decision snapshot

VerdictChoose Wavect if your brief calls for ongoing technical leadership with an agreed part-time remit. Start by agreeing the first deliverable, responsible people and acceptance checks with us.

Wavect is best when

  • We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Wavect’s offer
  • Our fractional roles put senior product or technical decisions with a named founder, within an agreed remit.
  • Start by agreeing the first deliverable, responsible people and acceptance checks with us.

The alternative is best when

  • Include another engagement when its proposed capacity, responsibilities or operational coverage better match the same brief. Verify those terms in the proposal; provider categories do not determine quality or price.

Questions to ask before you choose

  1. For ongoing technical leadership with an agreed part-time remit, what must the first phase cover?
  2. What proof should you ask for before trusting the “DURATION” claim?
  3. What happens commercially if the “TYPICAL TRIGGER” trade-off turns out wrong?

Commercial risk to watch

  • Compare the same scope, staffing, acceptance checks and ongoing responsibilities in both written offers. Different inclusions can make headline prices incomparable.

Evidence notes

  • Where no source URL is listed, treat this as a model comparison and verify current vendor terms directly.
  • This comparison is based on the page’s stated facts and Wavect’s own operating model, not on a hidden quality claim about Interim CTO.
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Project fit: not limited to small builds

Project size and provider headcount are separate decisions. Wavect’s delivery unit is a named senior core, but that does not limit the work to MVPs or short startup projects. Larger projects are split into phases with separate budgets and acceptance criteria. We also build internal systems and process automations inside a client’s existing repositories, tooling and workflows. A vetted bench supports continuity and scope-specific capacity. A larger provider may still be the better choice when the main requirement is several parallel teams, an incumbent framework agreement or certifications Wavect does not currently hold.
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How they actually differ

Apply the same criteria to both proposals. The alternative column asks what the other engagement must confirm.

FRACTIONAL CTO DIMENSION INTERIM CTO

Part-time, typically 1 to 3 days a week. Scales up or down as the company changes.

TIME COMMITMENT

Confirm how the proposal addresses “TIME COMMITMENT”, including scope and responsibility. Request these terms in writing.

Ongoing, no planned end date. Continues for as long as the part-time-sized need exists.

DURATION

Confirm how the proposal addresses “DURATION”, including scope and responsibility. Request these terms in writing.

A part-time-sized need. The company needs CTO-level authority on architecture, hiring, and vendors, without a full-time executive workload.

TYPICAL TRIGGER

Confirm how the proposal addresses “TYPICAL TRIGGER”, including scope and responsibility. Request these terms in writing.

Wavect’s offer Review the published model, then obtain the price, included work and commitment for this scope.

COST SHAPE

Confirm how the proposal addresses “COST SHAPE”, including scope and responsibility. Request these terms in writing.

The relationship persists. Context compounds over months and years, and the engagement scales instead of ending.

CONTINUITY

Confirm how the proposal addresses “CONTINUITY”, including scope and responsibility. Request these terms in writing.

A funded startup or SME that needs senior technical authority, not full-time presence. Often a non-technical founder.

BEST FOR

Confirm how the proposal addresses “BEST FOR”, including scope and responsibility. Request these terms in writing.

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The real difference, in practice

Why choose Wavect for this brief?

We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Our fractional roles put senior product or technical decisions with a named founder, within an agreed remit. Wavect’s offer

Start by agreeing the first deliverable, responsible people and acceptance checks with us.

Define the buying need

Ask both providers who owns scope, technical decisions and acceptance, and what remains with your team after handover.

Include another engagement when its proposed capacity, responsibilities or operational coverage better match the same brief. Verify those terms in the proposal; provider categories do not determine quality or price.

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When each is the better call

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Why choose Wavect for this scope

  • We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Wavect’s offer
  • Our fractional roles put senior product or technical decisions with a named founder, within an agreed remit.
  • Start by agreeing the first deliverable, responsible people and acceptance checks with us.
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When to include Interim CTO

  • Include another engagement when its proposed capacity, responsibilities or operational coverage better match the same brief. Verify those terms in the proposal; provider categories do not determine quality or price.

We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Plan your first milestone with us .

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Relevant Wavect work

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FAQs

We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Our fractional roles put senior product or technical decisions with a named founder, within an agreed remit. Wavect’s offer
Start by agreeing the first deliverable, responsible people and acceptance checks with us.
Wavect’s offer Ask both providers who owns scope, technical decisions and acceptance, and what remains with your team after handover. Obtain a written quote with included work, taxes, change handling and exit terms.
Discuss your current responsibilities with us, then agree the decision rights, access and handover for our scope.
This is a commercial comparison published by Wavect, not an independent review. Recommendations concern the stated scope, not a tested quality ranking. Confirm current terms before contracting.
Last reviewed: byKevin Riedl wiki ↗

For ongoing technical leadership with an agreed part-time remit, what must the first phase cover?

We take on ongoing technical leadership with an agreed part-time remit, with scope and responsibilities agreed upfront. Start by agreeing the first deliverable, responsible people and acceptance checks with us.

Plan your first milestone with us