I’m Sam Halcrow, a Contract CTO. Part-time or interim.

I’m Sam Halcrow, a Contract CTO. Part-time or interim.

I’m Sam Halcrow, a Contract CTO. Part-time or interim.

I take the CTO seat on contract: a few days a month or for a fixed term. I lead and take full accountability for your technology.

I'm Sam Halcrow. I lead the technology function inside your business, taking full accountability for where your technology goes and how it gets there.

I take the CTO seat on contract: a few days a month or for a fixed term. I lead and take full accountability for your technology.

16+ yrs

Leading technology initiatives

253

Companies I’ve stepped into

1M+

Engineering hours under my leadership

Book an introduction call with Sam

Book an introduction call with Sam

A short chat through whatever's on your mind: a tech project you're thinking about, something already underway, or a question about how to approach a problem.

Why you would hire a CTO on contract

Call it part-time, interim, temporary or outsourced. A contract CTO solves one problem: nobody is accountable for your technology right now.

Call it part-time, interim, temporary or outsourced. A contract CTO solves one problem: nobody is accountable for your technology right now.

A contract CTO is a senior technical leader engaged on terms that fit the business rather than on a permanent salary: part-time, for a fixed period, or on demand when something needs a decision. The seat is the same in every case. Own the technical direction, run the engineers and vendors, and answer to leadership for the outcome.


The companies that come to me are usually in one of three situations:

Their CTO has left, or is about to, and the search for a replacement will take months they don't have.

They have never had one, and a build, a migration or a vendor relationship has grown past what anyone in the room can evaluate.

Or they need senior technical judgement for a defined stretch: a due diligence, platform rebuild, handover to a new team.


I've stepped into 253 companies over 16 years, from pre-revenue startups to mid-market companies across Australia. I bring a 26-strong engineering team across software, AI, and cloud when the work needs one. I lead every engagement personally.

CLIENTS I'VE WORKED WITH

253 companies have trusted me with their technology

253 companies have trusted me with their technology

253 companies have trusted me with their technology

WHAT I DO

WHAT I DO

These are the ways I step in as a contract CTO

These are the ways I step in as a contract CTO

Part-time CTO, ongoing

A set number of days a month, for as long as the business needs it. Most of my engagements run this way, some for years. The days scale up or down as things change.

Interim or temporary CTO, covering a gap

Your CTO has resigned, or you are mid-search. I hold the seat, keep delivery moving, and hand over properly when the permanent hire starts.

Outsourced CTO, with the engineers included

26 software, AI, and cloud engineers on my team. If there is nobody to build or run what we decide on, I bring the people rather than leaving you to hire and manage a team separately.

On-demand CTO for the big tech decisions

Technical due diligence, a vendor you have lost confidence in, an architecture call before a big spend. Whatever the decision, I step in and tell you what I'd do in your shoes.

VIDEO TESTIMONIALS

VIDEO TESTIMONIALS

VIDEO TESTIMONIALS

Hear from the companies I’m currently CTO at

Hear from the companies I’m currently CTO at

Hear from the companies I’m currently CTO at

Angela Bevitt-Parr

National Marketing Manager
AWS Australia

Angela Bevitt-Parr

National Marketing Manager
AWS Australia

Tim Buric

Chief Technology Officer
Agilyx & MUNIvers

Tim Buric

Chief Technology Officer
Agilyx & MUNIvers

Kelvin Kenney

Chief Executive Officer
Bow Wow Meow

Kelvin Kenney

Chief Executive Officer
Bow Wow Meow

"Sam and his team injected innovation back into our environment to reconstruct what we had and gear it up for the future."

"Sam and his team injected innovation back into our environment to reconstruct what we had and gear it up for the future."

"Sam and his team injected innovation back into our environment to reconstruct what we had and gear it up for the future."

Angela Bevitt-Parr

National Marketing Manager, AWS Australia

Angela Bevitt-Parr

National Marketing Manager, AWS Australia

Angela Bevitt-Parr

National Marketing Manager, AWS Australia

"Sam and his team took the time to understand our business and knew all the tech we needed… They act as an extension of our team."

"Sam and his team took the time to understand our business and knew all the tech we needed… They act as an extension of our team."

"Sam and his team took the time to understand our business and knew all the tech we needed… They act as an extension of our team."

Rouad El-Ayoubi

Managing Director, Alliance Project Group

Rouad El-Ayoubi

Managing Director, Alliance Project Group

Rouad El-Ayoubi

Managing Director,

Alliance Project Group

"What I liked about [working with Halcrow] was that there was a lot of experience brought in. It was the breadth of experience that gave me some certainty that we were on the right path."

"What I liked about [working with Halcrow] was that there was a lot of experience brought in. It was the breadth of experience that gave me some certainty that we were on the right path."

"What I liked about [working with Halcrow] was that there was a lot of experience brought in. It was the breadth of experience that gave me some certainty that we were on the right path."

Tim Buric

Chief Technology Officer, Agilyx & MUNIvers

Tim Buric

Chief Technology Officer, Agilyx & MUNIvers

Tim Buric

Chief Technology Officer, Agilyx & MUNIvers

Results

Outcomes I’ve achieved for companies like yours

Outcomes I’ve achieved for companies like yours

Outcomes I’ve achieved for companies like yours

45%

Sprint variance at 45%. Salesforce migration stalling. First on-time delivery in 18 months.

Man in a blue t-shirt smiling confidently while standing against a light wall in sunlight

70%

Field crew productivity — Acciona Westconnex 7 years inside a 7km tunnel. Zero surprises.

Woman with blonde hair and glasses wearing a white blouse, softly lit against a brown wall

35%

Bow Wow Meow +35% CTR increase — first A/B test, Bow Wow Meow From 6–8 weeks per test to 5 days

Smiling man in a grey blazer and graphic tee, lit by window shadows on a beige wall

5 mths

Bovara Time to market — Bovara EV charging platform vs. 12–18 months typical for a custom build. 30 stations live at launch.

Man and woman standing side by side in sunlight, both wearing light collared shirts

45%

Sprint variance at 45%. Salesforce migration stalling. First on-time delivery in 18 months.

Man in a blue t-shirt smiling confidently while standing against a light wall in sunlight

70%

Field crew productivity — Acciona Westconnex 7 years inside a 7km tunnel. Zero surprises.

Woman with blonde hair and glasses wearing a white blouse, softly lit against a brown wall

35%

Bow Wow Meow +35% CTR increase — first A/B test, Bow Wow Meow From 6–8 weeks per test to 5 days

Smiling man in a grey blazer and graphic tee, lit by window shadows on a beige wall

5 mths

Bovara Time to market — Bovara EV charging platform vs. 12–18 months typical for a custom build. 30 stations live at launch.

Man and woman standing side by side in sunlight, both wearing light collared shirts

45%

Sprint variance at 45%. Salesforce migration stalling. First on-time delivery in 18 months.

Man in a blue t-shirt smiling confidently while standing against a light wall in sunlight

70%

Field crew productivity — Acciona Westconnex 7 years inside a 7km tunnel. Zero surprises.

Woman with blonde hair and glasses wearing a white blouse, softly lit against a brown wall

35%

Bow Wow Meow +35% CTR increase — first A/B test, Bow Wow Meow From 6–8 weeks per test to 5 days

Smiling man in a grey blazer and graphic tee, lit by window shadows on a beige wall

5 mths

Bovara Time to market — Bovara EV charging platform vs. 12–18 months typical for a custom build. 30 stations live at launch.

Man and woman standing side by side in sunlight, both wearing light collared shirts

HOW TO START working with me

HOW TO START working with me

Getting a Contract CTO started takes three steps

Getting a Contract CTO started takes three steps

STEP 1

Book an introduction call

Send me a message or book a call below. We'll set up a video during your working day.

STEP 2

Get a plan tailored to your business

After we discuss your tech project, I'll write up what I'd focus on first and how we might work together.

STEP 3

Get started

If it makes sense, I start inside your business as a Contract CTO and meet your team.

FAQ

Frequently asked questions

Frequently asked questions

Frequently asked questions

What's the difference between a contract CTO, a part-time CTO, an interim CTO and a fractional CTO?

Mostly the shape of the engagement. Part-time and fractional mean an ongoing arrangement for a set number of days a month. Interim and temporary mean a fixed-term placement, usually to cover a gap while you hire. Contract, outsourced, and on-demand are umbrella terms for any of those. I work in all of these shapes. What stays constant is that I take the CTO seat and am accountable for the outcome.

Our CTO has just resigned. How quickly can you start?

The first step is a conversation this week. From there I start with a short read of where the technology, team and the vendors stand, then commit to a plan. If your outgoing CTO is still in the building, I use the overlap for a proper handover rather than starting cold.

How long does an interim or temporary CTO engagement usually run?

As long as the gap. Some run three months to bridge a hiring search, some run a year through a rebuild or a transition. The engagement has a defined end and a defined handover.

What does a contract CTO cost compared to a full-time hire?

A full-time CTO usually lands between $250k and $450k a year once everything is factored in. A contract CTO is charged on day rates for the days you actually need, whether that's a few a month or a fixed-term block, at a fraction of that.

What happens if we already have an in-house engineering team or a vendor?

I work closely with them, setting direction and checking that decisions and delivery are sound. If you don't have an engineering team in place, I can bring my own team of engineers to fill that gap rather than leaving you to hire and manage one separately.

READY?

After our first meeting you'll
leave knowing what to do next

Visit my office in Surry Hills

Exterior of a building with orange awnings and a sign above the door that reads “Prospect.”

Halcrow Office

Level 3, 116 Devonshire Street, Surry Hills NSW 2010

Meet on a video call

Book an introduction call with Sam

A short chat through whatever's on your mind: a tech project you're thinking about, something already underway, or a question about how to approach a problem.

CONTACT ME

Whether you’ve got a clear problem or are concerned about what you don’t know, I’m always happy to have a conversation with business leaders and share my thoughts and insights.

Visit me

Level 3
116 Devonshire Street
Surry Hills
NSW Australia

Feel free to call me directly

© 2026 Halcrow | Privacy Policy

READY?

After our first meeting you'll
leave knowing what to do next

Visit my office in Surry Hills

Exterior of a building with orange awnings and a sign above the door that reads “Prospect.”

Halcrow Office

Level 3, 116 Devonshire Street, Surry Hills NSW 2010

Meet on a video call

Book an introduction call with Sam

A short chat through whatever's on your mind: a tech project you're thinking about, something already underway, or a question about how to approach a problem.

CONTACT ME

Whether you’ve got a clear problem or are concerned about what you don’t know, I’m always happy to have a conversation with business leaders and share my thoughts and insights.

Visit me

Level 3
116 Devonshire Street
Surry Hills
NSW Australia

Feel free to call me directly

© 2026 Halcrow | Privacy Policy

READY?

After our first meeting you'll
leave knowing what to do next

Visit my office in Surry Hills

Exterior of a building with orange awnings and a sign above the door that reads “Prospect.”

Halcrow Office

Level 3, 116 Devonshire Street, Surry Hills NSW 2010

Meet on a video call

Book an introduction call with Sam

A short chat through whatever's on your mind: a tech project you're thinking about, something already underway, or a question about how to approach a problem.

CONTACT ME

Whether you’ve got a clear problem or are concerned about what you don’t know, I’m always happy to have a conversation with business leaders and share my thoughts and insights.

Visit me

Level 3
116 Devonshire Street
Surry Hills
NSW Australia

Feel free to call me directly

© 2026 Halcrow | Privacy Policy