Atomic Ambition

Atomic Ambition is an 8-week Career Accelerator that helps ambitious professionals and leaders decide on their next big career move and make it happen - whether in corporate or as a solopreneur.

Through a blend of curriculum, coaching, and community, you’ll gain the tools and mindset to make your next big career move a reality.

Founder

Mostyn Wilson Ltd

Corporate workshops on high performance for professionals and leaders.

Financial and professional services companies use my highly interactive and incredibly effective workshops to help their teams:

– Stop the endless cycle of back-to-back meetings.

– Sustain high performance without burning out.

– Use Imposter Syndrome as fuel for growth.

– Take control of their careers.

– Improve wellbeing.

High Performance Workshops for Financial and Professional Services

Senior Executive Coach

MicDrop

Keynotes and workshops on high performance in financial and professional services.

Keynote Speaker

Pelham Street - Leadership Advisory & Executive Coaching

Pelham Street is a leadership advisory and executive coaching firm working with senior leaders to develop leadership efficacy, and improve both individual and organisational performance.

TransRe

Non-Executive Board Director and Chair of the Investment Committee. 

Member of the Risk and Audit Committee, and Compensation Committee.

Non-Executive Director at TransRe London Limited

Just Group plc

A one year contract to support the Audit Committee.

Advisor to the Audit Committee

KPMG UK

Leadership Team member as Chief Operating Officer and then Head of People for Financial Services Audit in the UK.

Leading multidisciplinary, multi-location teams providing assurance, transaction, and advisory services to global listed financial services groups (FTSE 100 and other) and high growth companies.

Relationship development with executive and non-executive board members.

Extensive travel in Asia and the United States to work with local client management and KPMG teams.

Key achievements:
•	Excellent personal results on the firm's number one priority of achieving high audit quality
•	Significant improvements in commercial outcomes across directly led accounts
•	Signing partner on one of the UK’s largest ever insurance M&A transactions
•	Sustainably doubled the size of the FS Audit business over four years 
•	Significant improvement in diversity and staff wellbeing metrics
•	People leadership through Covid, with excellent feedback from colleagues on my approach

Partner

A combination of a client facing role and Chief Operating Officer for the FS Audit business.

Director

A combination of a client facing role and running a department of 60 people.

Senior Manager

Manager

Assistant Manager

Graduate Trainee

⚡️ LinkedIn Top Voice ⚡️ Be happier and more fulfilled by changing how you work ⚡️ Former People Partner at KPMG

*** 𝗛𝗶𝗴𝗵 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗖𝗼𝗿𝗽𝗼𝗿𝗮𝘁𝗲 𝗪𝗼𝗿𝗸𝘀𝗵𝗼𝗽𝘀 ***

Thousands of professionals and leaders have transformed their productivity, quality of work, and engagement with my corporate workshops.

These are ideal for away days, leadership programs, employee events, and addressing employee survey feedback.

Clients range from the very big to the very small, and include M&G plc, Bupa, and KPMG.

✅ “𝘔𝘰𝘴𝘵𝘺𝘯 𝘩𝘢𝘴 𝘸𝘰𝘳𝘬𝘦𝘥 𝘸𝘪𝘵𝘩 𝘰𝘶𝘳 𝘦𝘹𝘦𝘤𝘶𝘵𝘪𝘷𝘦 𝘢𝘯𝘥 𝘴𝘦𝘯𝘪𝘰𝘳 𝘭𝘦𝘢𝘥𝘦𝘳𝘴𝘩𝘪𝘱 𝘵𝘦𝘢𝘮𝘴 𝘥𝘶𝘳𝘪𝘯𝘨 𝘵𝘸𝘰 𝘰𝘧 𝘰𝘶𝘳 𝘢𝘸𝘢𝘺 𝘥𝘢𝘺𝘴. 𝘏𝘪𝘴 𝘴𝘦𝘴𝘴𝘪𝘰𝘯𝘴 𝘴𝘵𝘢𝘯𝘥 𝘰𝘶𝘵 𝘧𝘰𝘳 𝘵𝘩𝘦𝘪𝘳 𝘣𝘭𝘦𝘯𝘥 𝘰𝘧 𝘦𝘷𝘪𝘥𝘦𝘯𝘤𝘦-𝘣𝘢𝘴𝘦𝘥 𝘵𝘩𝘦𝘰𝘳𝘺 𝘢𝘯𝘥 𝘱𝘳𝘢𝘤𝘵𝘪𝘤𝘢𝘭 𝘢𝘥𝘷𝘪𝘤𝘦 𝘵𝘢𝘪𝘭𝘰𝘳𝘦𝘥 𝘵𝘰 𝘴𝘦𝘯𝘪𝘰𝘳 𝘭𝘦𝘢𝘥𝘦𝘳𝘴.”
– 𝘋𝘢𝘷𝘪𝘥 𝘙𝘪𝘤𝘩𝘢𝘳𝘥𝘴𝘰𝘯, 𝘊𝘌𝘖, 𝘑𝘶𝘴𝘵 𝘎𝘳𝘰𝘶𝘱 𝘱𝘭𝘤

*** 𝗔𝘁𝗼𝗺𝗶𝗰 𝗔𝗺𝗯𝗶𝘁𝗶𝗼𝗻 𝗖𝗮𝗿𝗲𝗲𝗿 𝗔𝗰𝗰𝗲𝗹𝗲𝗿𝗮𝘁𝗼𝗿 ***

Get paid more and do work you actually care about.

Atomic Ambition helps professionals and leaders in the second half of their career to figure out their next big career move and make it happen – whether in corporate or as a solopreneur.

It is a live 8-week program for those feeling a bit stuck.

And for you if you feel you could (and should) be playing a bigger game.

Attendees describe it as "life changing" because, well, it is.

The waitlist for the second 2025 cohort is currently open. Visit www.atomicambition.com.

*** 𝗘𝘅𝗲𝗰𝘂𝘁𝗶𝘃𝗲 𝗖𝗼𝗮𝗰𝗵𝗶𝗻𝗴 ***

For ambitious leaders and founders, my coaching unlocks extraordinary potential. I work with a limited number of people each year.

✅ "𝘔𝘰𝘴𝘵𝘺𝘯 𝘴𝘵𝘳𝘦𝘵𝘤𝘩𝘦𝘥 𝘮𝘺 𝘵𝘩𝘪𝘯𝘬𝘪𝘯𝘨 𝘢𝘯𝘥 𝘩𝘦𝘭𝘱𝘦𝘥 𝘮𝘦 𝘳𝘢𝘪𝘴𝘦 𝘢𝘯𝘥 𝘤𝘭𝘢𝘳𝘪𝘧𝘺 𝘮𝘺 𝘢𝘮𝘣𝘪𝘵𝘪𝘰𝘯, 𝘢𝘴 𝘸𝘦𝘭𝘭 𝘢𝘴 𝘱𝘭𝘢𝘯𝘴 𝘵𝘰 𝘢𝘤𝘩𝘪𝘦𝘷𝘦 𝘪𝘵. 𝘔𝘰𝘴𝘵𝘺𝘯'𝘴 𝘢𝘱𝘱𝘳𝘰𝘢𝘤𝘩 𝘪𝘴 𝘢 𝘸𝘰𝘯𝘥𝘦𝘳𝘧𝘶𝘭 𝘣𝘭𝘦𝘯𝘥 𝘰𝘧 𝘵𝘩𝘰𝘶𝘨𝘩𝘵𝘧𝘶𝘭 𝘴𝘵𝘳𝘢𝘪𝘨𝘩𝘵 𝘵𝘢𝘭𝘬𝘪𝘯𝘨, 𝘤𝘩𝘢𝘭𝘭𝘦𝘯𝘨𝘦 𝘢𝘯𝘥 𝘦𝘯𝘤𝘰𝘶𝘳𝘢𝘨𝘦𝘮𝘦𝘯𝘵.”
– 𝘊𝘦𝘤𝘪𝘭𝘪𝘢 𝘊𝘳𝘰𝘴𝘴𝘭𝘦𝘺, 𝘍𝘰𝘶𝘯𝘥𝘦𝘳 / 𝘊𝘌𝘖, 𝘜𝘱𝘭𝘪𝘧𝘵𝘪𝘯𝘨 𝘗𝘦𝘰𝘱𝘭𝘦

__

I am also a non-executive director and Chair of the Investment Committee at TransRe London Limited. TransRe is an incredibly successful reinsurance company which is part of Warren Buffett's Berkshire Hathaway.

My background is as a client-facing Partner and Head of People at KPMG.

Based in central London, I work internationally.

Mostyn Wilson

If you don't defend your team,
you shouldn't be leading one.

A title means nothing if your people feel unsafe.

Leadership is revealed when things get tough.

The best leaders protect their teams from toxicity that kills trust and motivation.

7 workplace issues great leaders guard against:

1. Unrealistic Expectations
Pushing for endless output leads to burnout.
Set ambitious but sustainable goals instead.

2. Micromanagement
Hovering over every detail kills creativity.
Empower people to own their work.

3. Blame Culture
Fear of mistakes shuts down innovation.
Fix problems, not people.

4. Unnecessary Distractions
Endless meetings wreck focus.
Protect deep work time.

5. Unclear Direction
Confusion leads to frustration and wasted effort.
Communicate clearly. Align expectations.

6. Office Politics
Drama tears teams apart.
Promote transparency and fairness.

7. Lack of Recognition
Feeling unseen kills engagement.
Celebrate wins, big and small.

The best leaders know that their job is to make great work possible.

Which of these resonates most with your experience?

♻️ Share this with a leader who needs to hear it.

Follow me (Mostyn Wilson) for more on building teams people want to be part of.

Solving the Workload Crisis | Watch my Showreel | Global Speaker | Helping leaders and teams perform brilliantly without burning out | ex-KPMG Partner, COO & Head of People

A True Leader Protects You

When I led my first real project, half the team didn't really do anything...

A few people even disappeared when deadlines hit.

And two people – just two – kept the whole thing alive.

They stayed late.
They fixed what others broke.
They refused to let it fail.

We love to say “teamwork makes the dream work.”

It sounds nice.
It even rhymes.
But often it’s not true.

Here are the 3 types of people in a team:

1/ A few people carry the mission.

These are your DRIVERS.
They don’t wait for direction.
They just make it happen.
They treat every project like it has their name on it.

2. Most people just follow along

These are your PASSENGERS.
They get going once things are already moving.
They’re good people, just not self-starters.
They ride the momentum, but they rarely create it.

3. Some people pull it backwards.

These are your DRAINERS.
All talk. No output. Lots of excuses.
They slow progress in the name of “better alignment.”

What should you do with each of these?

Give your Drivers power and pay them very well.

Give your Passengers tasks that stretch them a bit.

And give your Drainers a mirror and a moment to decide whether they want to be on the team at all.

Which type are you...?

♻️ Share this to help others rescue their teams.

📌 Want to see more posts like this? Follow me (Mostyn Wilson)

How to rescue a stuck team

You might be sabotaging your credibility without realising it.

Here are 8 myths still running rampant in most workplaces:
 
𝗠𝘆𝘁𝗵: Credibility comes from knowing all the answers.
↳ 𝗧𝗿𝘂𝘁𝗵: It comes from admitting when you don’t know and finding solutions.
 
𝗠𝘆𝘁𝗵: Being busy makes you look important.
↳ 𝗧𝗿𝘂𝘁𝗵: Results make you important.

𝗠𝘆𝘁𝗵: Speaking the most in meetings makes you influential.
↳ 𝗧𝗿𝘂𝘁𝗵: Thoughtful, well-timed insights carry real weight.
 
𝗠𝘆𝘁𝗵: Asking questions makes you look inexperienced.
↳ 𝗧𝗿𝘂𝘁𝗵: Smart questions show curiosity and critical thinking.
 
𝗠𝘆𝘁𝗵: Taking sole credit boosts your reputation.
↳ 𝗧𝗿𝘂𝘁𝗵: Sharing credit builds trust and leadership presence.
 
𝗠𝘆𝘁𝗵: Staying quiet avoids conflict and protects credibility.
↳ 𝗧𝗿𝘂𝘁𝗵: Addressing issues constructively builds integrity and influence.
 
𝗠𝘆𝘁𝗵: Showing emotions makes you look weak.
↳ 𝗧𝗿𝘂𝘁𝗵: Authenticity fosters stronger relationships.
 
𝗠𝘆𝘁𝗵: Keeping to yourself makes you look focused.
↳ 𝗧𝗿𝘂𝘁𝗵: Engaging with colleagues enhances trust and collaboration.
 
The takeaway?

Credibility isn’t about looking smart, busy, or perfect.
👉 It’s about trust, consistency, and impact.

🔔 Follow me (Mostyn Wilson) for frameworks to build credibility and career momentum.

♻️ Repost to help others break free from these myths.

Infographic titled “8 Myths About Credibility at Work.” It lists eight common workplace misconceptions and their truths, each in paired blocks. Examples: “Myth: Credibility comes from knowing all the answers. Truth: It comes from admitting when you don’t know and finding solutions.” Other myths cover busyness, speaking too much, avoiding questions, taking credit, staying quiet, hiding emotions, and isolating yourself. The design uses bold headings and clear typography for readability. The visual reinforces the takeaway: credibility is built on trust, humility, collaboration, and authenticity — not perfection or busyness.

The longer you wait to feel ready...
The more you train your brain that doubt means “don’t”.

Your future self will never thank you for waiting.
 
They’ll thank you for starting.

And you’ll never feel completely ready.
 
Not for your first bold move.
Not for your next big role.
Not for the thing you actually want.
 
Most of us wait for the right moment.
 
More skills.
More experience.
More confidence.
 
But  that moment never arrives.
 
Here’s what I’ve learned from every leap I took before I felt ready:

→ The skills came after I started
→ My confidence grew with every step
→ The right people showed up once I was in motion
 
You don’t become ready by thinking.
You become ready by doing.
 
Top performers don’t wait for permission.
They act before they’re certain.
They grow into the roles they want.
 
Because action creates the confidence you’re waiting for.
 
Which area in your life needs less waiting, more starting?
 
♻ Repost to help your network take action

✅ Follow me (Mostyn Wilson) for more on personal and professional growth
__

P.S. Have you subscribed to my weekly newsletter yet?
Click 'Visit my website' above to try it this week.

Start before you feel ready

RenaissanceRe

Head of Internal Audit (Permanent)

Internal Audit specialist who is passionate about adding value to an organisation

Interim Head of IA Roles

Enstar Group

Lead the Global IA Function of Enstar, and the provision of appropriate assurance (Internal Audit and the group wide SOx programme) to the Enstar Group Audit Committee and Audit Committee Chair, in line with regulatory expectations for group (Bermuda) and subsidiaries in the UK, USA and Australia

Group Head of Internal Audit

Protiviti

Lead and delivered consulting engagements across Financial Services companies in Internal Audit, Internal Controls, Risk and Compliance in line with UK (Lloyd's and PRA) and US Regulations.

Wide range of experience in the financial services sector, including alternative asset management, exchanges and clearing, non-life international insurance groups, and Lloyd’s entities, delivering internal audit, risk management, regulation and compliance solutions.

Programme Manager for internal audit co-source and outsource arrangements for insurance and real estate clients. Core components of this role were working closely with audit committee and leading the appropriate team to deliver the following; risk assessment of the audit universe, scope internal audit reviews , testing, internal audit report and management actions. This involved building solid relationships with client senior management, coaching and developing a team of resources to meet specific project requirements such as ensuring a risk based approach is adopted, quality and consistent work with clear actionable messages, budget tracked and performance indicators monitored and reported, with final deliverables presented to the audit committee.
 
People development: providing regular coaching, advice and guidance for annual and project goals, regular career catch ups and where appropriate presenting individuals for promotion.  

Delivery of client and in-house training for the London office e.g. Senior Managers Regime, Developing an effective Fraud prevention plan, Risk Based Auditing, PCAOB updates and COSO changes.

Key member of Internal audit and financial controls solution in the Protiviti London office and Global Insurance practice driving market strategy, annual business plan and business development activities.

Senior Manager (Internal Audit and Financial Assurance)

MS Amlin

Designed and delivered the IA plans and J-Sox testing for the following locations/companies: UK (Lloyd’s  Syndicate & Company Market General Insurer), European branch network (General Insurer), Middle East (General Insurer), Bermuda (Cat Reinsurer) and Ireland (General Reinsurer).

Internal Audit Manager

Mitsui Sumitomo Insurance Group

Internal Audit

KPMG

Assistant Manager (Financial Services Insurance Audit Assurance)

A dynamic leader with a broad set of experience across the financial sector in Internal Audit and Internal Controls. My career has been focused on using creative problem solving and leadership skills to drive transformation in governance and control to address complex operational challenges. As an Internal Audit leader, I've been responsible for both an experienced teams of professionals and for the development of the Internal Audit department from infancy on a journey to maturity. As a consultant, I advised companies on the optimization of Internal Audit functions and Internal Control frameworks across the FS sector.

Established Internal Audit expert, I am passionate about executives and wider stakeholders seeing IA as a value proposition for any organisation.

Extensive experience of methodology design and review, quality assurance reviews, Internal Audit function set up/refresh. 

Highly experienced in developing people and driving a Team Player mentality, with solid interpersonal skills enabling productive working relationships & partnerships focused on helping businesses grow and succeed

Solid written and verbal communication skills and planning / organisational abilities

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