Discovery call — 30 minutes
Tell us about your product, your team and the technical decisions that are blocking you right now. We'll be direct: if a fractional CTO isn't the right fit, we'll say so and point you somewhere useful instead.
Fractional CTO Services — Senior Tech Leadership On Demand
A fractional CTO gives you senior technology leadership — architecture decisions, team building, product roadmap, investor due diligence — without the cost or commitment of a full-time executive hire. You get the outcomes, not the overhead. Available in days. No equity. No six-month notice period.
- Available in 3–5 days
- 60–80% less than a full-time CTO
- Strategy + execution under one roof
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average years of CTO experience
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lower cost vs. full-time CTO hire
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days to onboard your fractional CTO
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startups and scale-ups served
You don't need a fractional CTO for everything. You do need one when technology decisions are blocking progress and nobody on the team has the seniority to own them.
Signs you need a fractional CTO
No technical co-founder
Your team is business-side heavy. Architecture decisions are being made by the cheapest contractor available. A fractional CTO owns the technical vision so you're not building the wrong product on the wrong stack.
Engineers without direction
You have developers shipping code but no one setting standards, resolving technical disagreements, or translating product goals into a coherent roadmap. Velocity drops as the team gets bigger.
Fundraising or due diligence
Investors are asking technical questions you can't answer. Your CTO as a service handles the data room, manages due diligence conversations and gives investors confidence in your technical foundation.
Scaling pains and technical debt
Performance is degrading, deploys are getting riskier and the team is afraid to touch core systems. An outsourced CTO diagnoses the real problem and sets a remediation plan before the next incident.
CTO departure or gap
Your CTO left — or is about to. An interim CTO bridges the gap: keeps the team stable, the roadmap moving, and runs a proper handover while you search for a permanent replacement.
Making first engineering hires
Ready to build the team but unsure what senior looks like or how to interview engineers? A fractional CTO defines the hiring bar, selects the stack and sets up processes before the first junior joins.
What our fractional CTO does for you
Tech Strategy & Architecture
Hiring & Team Building
Roadmap & Vendor Management
Investor & Due-Diligence Support
Book a call with a CTO
From first call to your CTO embedded in the team — in under a week.
How to hire a fractional CTO
Tech audit — week one
Your CTO reviews codebase, architecture, infrastructure and team. Output is a written audit report and a prioritised technical roadmap — specific enough to act on, honest enough to share with investors.
Embedded and running — week two
Sprint cadence, communication channels, engineering standards and reporting are all live. Where the Binerals engineering team is involved, handoffs are clean from day one. No onboarding lag.
Ongoing — scale up or down as needed
More hours during a fundraise or product launch, fewer when the team runs independently. Monthly strategic reviews keep the roadmap aligned with business reality. Most engagements run 12–18 months.
Strategy and execution under one roof
Most fractional CTOs are solo consultants — they advise, then leave you to execute alone. Binerals is different: your fractional CTO defines the architecture, and the Binerals engineering team builds it. One engagement, no gap between vision and delivery. Not sure where to start? Try our Discovery Phase first.
When to hire a fractional CTO
Your founding team is business-side heavy and you need a credible technical leader to own architecture decisions, evaluate build-vs-buy tradeoffs, and speak to engineering talent and investors.
You have developers shipping code but no one setting the technical vision, enforcing standards, or translating product goals into a coherent roadmap. The fractional CTO becomes that person.
Investors or acquirers are scrutinising your tech stack and team. Your outsourced CTO prepares the technical data room, manages due diligence and instils the confidence that moves a round forward.
Performance bottlenecks, mounting technical debt, or a fragile infrastructure are blocking product velocity. You need a leader who has solved these problems before — not a developer trying to figure it out.
Your CTO left unexpectedly or gave notice. An interim CTO provides immediate full-time coverage — keeps the team stable and the roadmap on track while you conduct a proper permanent search.
You're ready to build your first engineering team and need a CTO to define the hiring bar, select the stack, and set up processes before bringing on junior or mid-level engineers.
Why choose Binerals for fractional CTO services
Strategy doesn't stop at advice
Most fractional CTOs hand you a roadmap and leave. Ours work directly alongside the Binerals engineering team — architecture decisions translate into actual code, without a second vendor or a handoff that loses context.
Senior experience, verified
Every CTO in our network is screened on delivery track record, leadership history and domain fit — not just years on a CV. We check real exits, real fundraises and real team-building decisions.
Plain-language for non-technical founders
Our CTOs translate technical reality into business terms — and business goals into engineering decisions. You don't need to understand the stack to get useful answers from weekly calls.
Fractional CTO, interim CTO, or CTO as a service — choose the model that matches your stage and budget, not the most expensive one available.
Fractional vs interim vs full-time CTO
Advisory — 4–8 hrs/week
Weekly strategy calls and async input on key decisions. For companies with a technical lead who needs a senior sounding board, or founders who want a CTO perspective without full-team involvement. Month-to-month. Lowest commitment.
Part-Time Embedded — 16–24 hrs/week
Full CTO function at part-time commitment. Sprint planning, code standards, stakeholder calls, hiring, technical roadmap ownership. The most common model for seed and Series A companies. Works directly with the Binerals engineering team where execution is needed.
Interim CTO — Full-Time, 1–6 months
Full engineering org ownership for a defined period. Covers CTO departure, fundraising sprint, M&A or pre-IPO technical preparation. Same scope as a permanent CTO hire — without the equity, the search timeline, or the six-month notice period if things change.
How we vet our fractional CTOs
We don't list every available CTO. We only work with those who've passed our leadership and delivery bar.
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Track record review
We verify the companies they've led, the products they've shipped and the teams they've scaled. We look for exits, fundraising wins and engineering transformations — not just years on a CV.
Leadership interview
A senior Binerals partner interviews every candidate on communication style, decision-making under pressure, stakeholder management and how they handle failure.
Technical depth assessment
We assess architecture thinking, security awareness, scaling decisions and build-vs-buy reasoning. Strong fractional CTOs can go deep on any layer of the stack — and explain it to a non-technical CEO.
Reference checks with founders
We speak directly with CEOs and founders they've worked with. We ask about reliability, transparency, delivery quality and what they'd do differently.
Domain match
Not every CTO fits every company. We verify that the candidate's domain experience — SaaS, fintech, healthtech, marketplace, consumer — aligns with your product and market before making an introduction.
Ongoing monitoring
We stay close to every engagement. Monthly check-ins with the founder flag misalignment early and allow us to adjust scope or swap quickly if needed. You're never stuck.
We don't list every available CTO. We only work with those who've passed our leadership and delivery bar.
1Track record review
We verify the companies they've led, the products they've shipped and the teams they've scaled. We look for exits, fundraising wins and engineering transformations — not just years on a CV.
2Leadership interview
A senior Binerals partner interviews every candidate on communication style, decision-making under pressure, stakeholder management and how they handle failure.
3Technical depth assessment
We assess architecture thinking, security awareness, scaling decisions and build-vs-buy reasoning. Strong fractional CTOs can go deep on any layer of the stack — and explain it to a non-technical CEO.
4Reference checks with founders
We speak directly with CEOs and founders they've worked with. We ask about reliability, transparency, delivery quality and what they'd do differently.
5Domain match
Not every CTO fits every company. We verify that the candidate's domain experience — SaaS, fintech, healthtech, marketplace, consumer — aligns with your product and market before making an introduction.
6Ongoing monitoring
We stay close to every engagement. Monthly check-ins with the founder flag misalignment early and allow us to adjust scope or swap quickly if needed. You're never stuck.
What our customers think
Frequently Asked Questions
A fractional CTO — sometimes called a CTO as a service or outsourced CTO — is a senior technology executive who works with your company part-time, typically 4 to 40 hours per week. They own all technology decisions: architecture, team hiring, product roadmap, security and technical strategy. The difference from a full-time CTO is hours and cost, not scope or accountability. A fractional CTO carries the same responsibilities — they just don't sit in your office every day.
Fractional CTO engagements typically cost 60–80% less than a full-time CTO hire when you factor in salary, equity, benefits and recruiting fees. An advisory model (4–8 hours/week) starts at a few thousand dollars per month. A part-time embedded model (16–24 hours/week) runs $8,000–$15,000 per month depending on scope and domain. Interim CTO engagements are priced closer to an executive contractor rate. All Binerals engagements are fixed monthly retainers — no variable billing, no surprise invoices.
Fractional CTO and CTO as a service are often used interchangeably — both mean part-time senior tech leadership on a retainer, with ongoing accountability for architecture, team and roadmap. An interim CTO is full-time for a defined period, typically covering a departure, a fundraising sprint or a pre-IPO push. A virtual CTO is usually advisory-only — they advise but don't own delivery or manage the team directly. Binerals offers all three. Most early-stage clients start with part-time embedded and shift to advisory as the team matures.
Engagements range from 4 hours per week (pure advisory — strategy calls and async input) to 40 hours per week (full interim coverage). Most seed and Series A startups start at 16–20 hours per week. We size the engagement during the discovery call based on what's actually blocking you — not based on what's most expensive to sell. You can scale hours up during a fundraise or product launch and back down once the team is running independently.
The right moment is when technology decisions are blocking progress and no one on the team has the seniority to own them. Common triggers: no technical co-founder, an engineering team without direction, preparing for fundraising, a CTO departure, or scaling pains the team can't resolve on its own. If any of those sound familiar, the cost of a fractional CTO is almost always less than the cost of the wrong architecture decision or the wrong senior hire.
Yes — and this is what sets Binerals apart from solo fractional CTO consultants. Your fractional CTO defines the architecture, sets the engineering standards and owns the technical roadmap. The Binerals engineering team builds to that specification. Strategy and execution stay in one place: there's no gap between the technical vision and what actually ships, and you don't manage a second vendor. If your CTO identifies a gap — a missing DevOps engineer, a senior backend developer — we staff it from the same team immediately.
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