Fractional CTO & Head of Engineering
Take responsibility for product technology, architecture, risk, suppliers and team direction on a part-time or interim basis.
Fractional CTO support
for your software team.
Part-time technology leadership for UK businesses with an active software product or development team. ORBN works alongside your leaders and engineers, then hands responsibility back to a stronger internal team.
Capabilities
01 — 04What we build.
01
02
Software delivery leadership
Show how work reaches production, remove recurring blockers and connect engineering decisions to product and business results.
03
Architecture & technical governance
Set practical ways to make and record technical decisions, manage quality and security, and plan debt, resilience or platform change.
04
Team development & transition
Clarify roles, coach technical leaders, improve feedback and hiring, and prepare the team or a permanent leader to take over.
Fractional CTOEngineering ManagementDeliveryArchitectureCoachingHands-on leadership
How we lead
Leadership that leaves the team stronger.
A/01
Work inside the team
We join planning, delivery and technical decisions with engineers, product leaders and stakeholders. Advice stays connected to the work.
A/02
Fix the conditions around the team
We look at service and delivery results, queues and dependencies. The aim is to improve the system, not to score individual activity.
A/03
Plan the handover from day one
Decision records, coaching and delegated ownership give the internal team or a permanent hire a practical route to take over.
Does your team need fractional leadership?
Score one product and team. Unclear decisions, ownership or delivery point to a stronger leadership need. A fractional leader can help the team make progress and grow its capability, but cannot replace an engaged sponsor or cover a full-time role indefinitely.
Score the current capability from 0 to 3
Every slider starts at 1, which means the answer is still an assumption. A lower capability score produces a higher leadership need. Score the product and team in scope, regardless of job titles.
Engineering leadership need
A clear need for engineering leadership
Several important decisions or responsibilities still lack clarity. Start with a hands-on review of the facts, decision rights and biggest risks, then agree a focused job for the first 90 days.
Send the result and your optional context to ORBN for a personal response.
This scorecard supports initial scoping. It is not a team performance assessment, individual evaluation or employment recommendation.
Choose the role by the decisions it needs to own.
Titles vary between companies. Start with the work: executive technology direction, leadership of the engineering function, management of a team, one strategy decision or temporary full-time cover.
Scroll horizontally to compare leadership models →
| Leadership model | Useful when | Primary responsibility | Failure to avoid |
|---|---|---|---|
| Fractional CTO | Product technology decisions need an executive owner | Strategy, architecture, investment, risk, suppliers and leadership alignment | Giving advice without the authority to carry decisions through |
| Fractional Head of Engineering | An active software team needs stronger delivery and technical leadership | Delivery system, engineering standards, service ownership, team design and capability | Taking every difficult task away from internal leaders |
| Fractional engineering manager | One or more teams need day-to-day delivery, coaching and people leadership | Planning, feedback, role clarity, progression, hiring and team operating rhythm | Trying to fit a full-time management job into too few days |
| Technology strategy project | One investment, portfolio or roadmap decision needs focused work | Options, principles, roadmap, business case and governance design | Producing a presentation without an owner for implementation |
| Interim technology leader | A vacancy or major change needs temporary, near-full-time ownership | Continuity, decisions, team leadership, transition and permanent recruitment support | Calling a full-time role fractional to reduce the apparent commitment |
| Permanent CTO / VP Engineering | The organisation needs continuing executive or engineering leadership | Ongoing ownership, organisation building, executive accountability and succession | Delaying the hire when the work needs full-time presence |
When fractional leadership fits
FIT / 01Use it for a real gap, not a senior title.
01
The team has outgrown founder-led technology
Decisions, coaching and stakeholder conversations consume the founder or most senior engineer, but the business does not yet need a permanent technology executive.
02
Delivery is busy but hard to predict
Roadmaps keep moving, releases bunch up and incidents interrupt plans. Leaders can see activity, but not where work is stuck or what is changing for users.
03
A major change lacks technical ownership
Growth, due diligence, platform change, modernisation, supplier recovery or a leadership departure needs experienced decisions before the permanent structure is ready.
04
Internal leaders are ready to grow
A senior engineer or new manager needs challenge, real authority, feedback and support. The fractional leader should help them take on important decisions, not keep those decisions.
05
Poor fit: nobody can sponsor the work
If executives cannot agree the outcome, priority or authority, another CTO title will only add another voice. Settle the sponsorship and product decision first.
06
Poor fit: the role is actually full time
Daily people management, regular incident command or broad executive cover will not fit safely into a token allocation. Use interim or permanent leadership instead.
Understand the team, fix one constraint and share the ownership.
Ninety days is a sensible review point, not a promise to solve every organisational problem. The first engagement should show what has changed and give the team and sponsor a clear basis for deciding what happens next.
01
Agree the job and its boundaries
Name the sponsor, product and teams, desired results, decisions, time allocation and availability. Set out people, board or supplier duties, exclusions and the escalation path.
02
See how work reaches production
Join planning, reviews and incident work. Speak with executives, product people, engineers and dependent teams, then follow demand through to production.
03
Set a small baseline
Choose a few measures of results, flow, quality, reliability and team health that answer the brief. Record what the data cannot show, and do not turn the measures into individual targets.
04
Give important decisions an owner
Assign service, architecture, product and people decisions. Make blocked or high-risk commitments visible and set the smallest useful leadership rhythm.
05
Change the biggest constraint
Reduce one important queue, handoff, release risk, architectural uncertainty or skills gap. Keep the change small enough to see its effect in production.
06
Let internal leaders lead
Delegate real decisions, coach managers and technical leads, document the context and let the team run its own operating rhythm.
07
Review and decide what comes next
Compare the result with the original brief, discuss any unintended effects and decide whether to continue, change the allocation, start a project, recruit permanently or hand over.
See where delivery slows down and why.
Velocity, utilisation and estimates often create more argument than insight. Combine product results with flow, delivery, reliability, risk and what the team observes. Measures should point to a conversation or investigation. They should not rank people or replace judgement.
M/01
Results and demand
Start with what users and the business need to change. Then look at how work enters the team, what gets delayed and whether priorities stay stable long enough for the team to focus.
M/02
Flow and predictability
Work-item age, cycle time, throughput, blocked time, work in progress and unplanned demand reveal queues and large batches. The numbers do not pretend every item is equivalent.
M/03
Delivery throughput
Change lead time, deployment frequency and failed deployment recovery time show how changes move and recover for one application or service.
M/04
Delivery instability
Change fail rate and deployment rework rate show how often a release creates immediate corrective work.
M/05
Service and user health
Availability, latency, errors, support demand, recovery objectives, task completion and user feedback keep production health inside the delivery conversation.
M/06
Team health and capability
Decision bottlenecks, concentrated ownership, interruptions, psychological safety, progression and retention need conversation and observation as well as numbers.
DORA groups five software delivery measures into throughput and instability. Its guidance recommends measuring one application or service in context, improving over time and avoiding comparisons between unlike systems. Read DORA’s software delivery performance metrics.
Help teams make sound technical decisions themselves.
A fractional CTO should not approve every design or become the only person who understands production. The job is to give teams enough context, authority and support to make safe decisions at the right level.
01
Decision boundaries
State which choices teams own, which need wider agreement and which require an executive to accept the risk. Record the important context, options, consequences and reasons to review a decision.
02
Architecture direction
Connect system boundaries, data, integrations, platforms and cloud choices to the qualities the product needs and the changes already on the roadmap.
03
Quality and technical debt
Set useful testing, review and release controls. Describe the operating or change cost of debt, then plan the most important fixes alongside product work.
04
Security and resilience
Assign owners, model important threats and failures, manage dependencies and access, test recovery and connect risk decisions to what the service and business can tolerate.
05
Production ownership
Give each service an owner, useful monitoring, runbooks and clear incident roles. Teams that change software need to see how it behaves for users.
06
Suppliers and commercial decisions
Compare capability, lock-in, cost, service responsibility, data control and exit terms when choosing or managing development partners, SaaS products and platforms.
Give people room to grow into the responsibility.
A software team may need product, design, engineering, data, security and operational input at different points. The mix depends on the product and its risks. What matters is that the right people can work together and make decisions, not that the organisation copies a fashionable chart.
01
Clarify purpose and responsibility
Define what each team owns, who can decide, where product and technical responsibility meet, and how teams handle shared work without permanent escalation.
02
Keep the management rhythm useful
Keep planning, one-to-ones, feedback, reviews, retrospectives and leadership meetings proportionate. Every recurring meeting should support a decision, a relationship or learning.
03
Coach through real decisions
Develop managers and technical leaders through important decisions, observation and feedback. People need authority and protected opportunities before they can take over.
04
Make expectations and progression clear
Describe the impact, judgement, collaboration and scope expected at each level. Use real examples and keep career development separate from the most urgent visible project.
05
Hire for the work that is missing
Define the work and environment before writing the job description. Assess relevant examples, include future colleagues and avoid hiring a senior title to absorb deeper organisational problems.
06
Make the transition manageable
Share context early, document commitments and important risks, introduce the key relationships and transfer decisions gradually. Keep a time-limited support route after the permanent owner starts.
The GOV.UK Service Standard calls for a multidisciplinary team with the skills needed for the current phase. It also says decision-makers should be part of the team and accountable to it. Read the guidance on building a sustainable multidisciplinary service team.
Agree the authority, availability and exit.
The cost follows the responsibility, not the title. A proposal should tell executives and the team how much time they are buying, what the leader owns and what happens when demand exceeds the agreement.
P/01
Named job and desired result
List the product and teams in scope, sponsor, current problem, 30- to 90-day results, important decisions and conditions for changing or ending the work.
P/02
Time and availability
State the days or hours, how they fall across the week, recurring meetings, onsite or remote expectations, response times, planned absence and work that needs separate approval.
P/03
Authority over decisions and people
Set out budget, architecture, supplier, hiring, performance and executive responsibilities. Confirm who retains legal employment decisions and how disagreements or risk decisions escalate.
P/04
Delivery boundary
Say whether the role includes hands-on engineering, discovery or project delivery, how ORBN would propose extra specialists and how it handles conflicts between advice and implementation.
P/05
Fees and recurring obligations
Show the rate or retainer, minimum allocation, expenses, tax, out-of-hours work, subcontractors, notice and any software or assessment cost. Compare the same level of responsibility, not headline days.
P/06
Handover and intellectual property
Agree ownership and access for records, dashboards, code and documents. Cover confidentiality, successor support, open commitments, review dates and a workable exit if the engagement does not renew.
What technical leaders say about working with ORBN.
The team experiences fractional leadership as directly as the buyer does. These comments describe ORBN’s mentoring, technical leadership and communication.
Keir @ ORBN Digital has been a great mentor to me and I have thoroughly enjoyed working with him. He has been the driving force behind the architecture of the product, its integrations and many really tricky technical challenges along the way.
ORBN is an experienced and excellent mentor and team leader. Highly professional and communicative across the industry.
Meet ORBN’s leadership and senior engineering team on the team page. Testimonials describe those individuals’ experience. They do not predict a particular delivery, team or commercial result.
Questions to settle before the work starts.
01What is a fractional CTO?
A fractional CTO provides senior technology leadership for part of the week or month instead of joining as a full-time executive. The role can connect product and business direction to architecture, software delivery, technical risk, suppliers, budgets and team development. A useful engagement comes with clear decisions to own, not occasional advice from the sidelines. ORBN mainly works with businesses that already have an active software product or development team.
02What is the difference between a fractional CTO and an engineering manager?
A fractional CTO usually covers product technology, architecture, investment, risk and leadership of the technology function. A Head of Engineering or engineering manager focuses more on delivery, technical execution, team health and people development. One person may cover both in a smaller company, so the proposal should list the decisions and responsibilities instead of relying on a title.
03Is a fractional CTO the same as a fractional CIO or managed IT provider?
No. A CIO or IT director often focuses on corporate technology, infrastructure, security, enterprise applications and suppliers. A managed IT provider runs workplace technology and support. A product-focused CTO leads the technology behind the company’s product or operation. The boundaries can overlap, so ORBN agrees the remit before work starts. Fractional engineering leadership is not an outsourced helpdesk.
04When should a business hire fractional technology leadership?
It can help when a team has outgrown founder-led technical decisions, delivery is hard to predict or important technical risks lack an owner. It can also cover a leadership vacancy, guide a major product or modernisation programme, or coach an internal leader before they take on more responsibility. It will not fix an unclear product strategy, executive disagreement or a full-time operational job squeezed into a small retainer.
05How many days per week does a fractional CTO work?
The time depends on the job, team size, risk and meeting load. Coaching or one focused decision may take less time than delivery recovery, team change or interim ownership. ORBN agrees the working pattern, availability and response times in advance. A day spread across important decision points can be more useful than one isolated block. Work that needs daily management is usually a better fit for interim or permanent leadership.
06How much do fractional CTO services cost in the UK?
Cost depends on the decisions the leader will own, their time and availability, the team and product in scope, the risk involved and whether the work includes hands-on delivery. A useful proposal names the leader, allocation, responsibilities, exclusions, review points, expenses and handover terms. Compare proposals against the job that needs doing. A day rate or claimed saving against a permanent salary tells only part of the story.
07How long does a fractional engineering leadership engagement last?
A diagnostic or one focused decision can take weeks. Delivery improvement, coaching and organisational change usually need several review cycles to set a baseline, make a change and see the result in production. Interim cover may continue until a permanent leader starts. ORBN normally sets an initial review point around a 90-day mandate, then continues, changes scope or hands over based on what has changed.
08Can a fractional CTO help hire or hand over to a permanent leader?
Yes. The work can define the permanent role, clarify the team structure, support selection and prepare a structured transition. Handover should cover product and technical context, important risks, decision records, delivery and service measures, supplier obligations, team development needs, open commitments and stakeholder relationships. A successor should inherit a clearer organisation than the fractional leader found.
Match the engagement to the problem.
R/01
Technology strategy consulting
Resolve one portfolio, platform, investment or roadmap decision without creating an ongoing leadership role.
R/02Digital transformation consulting
Change a wider operating journey when people, process, data and technology need to move together.
R/03Custom software development
Add a delivery team for a product or operational workflow when leadership alone will not solve the problem.
R/04Legacy software modernisation
Assess, stabilise and change a legacy application while keeping architecture and operational risk under control.
R/05AWS cloud application development
Design, build and run an AWS application when the chosen direction needs a platform delivery team.
R/06API and systems integration
Connect product and operational systems with clear contracts, monitoring, recovery and service ownership.
Start with the leadership gapA clear leadership gap.
A clear leadership gap.
A practical first mandate.
Show us the product, team and decisions that need an owner. We’ll identify the right role, a useful first 90-day scope and the point at which we review or hand over.