Excellent interim management for CFO and COO positions

From start-ups to hyper-growth companies and growth-orientated SMEs.

I help with the elimination of "growing pains".

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Application scenarios

Through the strategic and customised use of tools, I ensure efficient and targeted implementation of the jointly defined objectives, thereby maximising the return on investment (RoI) for my clients.

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Owner

Ruben Faust

I support companies in developing growth strategies and mastering operational challenges. With my experience in financial management, controlling and agile methods, I ensure that expansions run smoothly. In this way, growth becomes an opportunity rather than a risk.

Short-term vacancies can present companies with major challenges. With my experience as an interim manager, I bridge bottlenecks in financial, IT or operational areas. Fast, efficient and target-orientated - this is how I ensure that companies remain capable of acting even in transitional phases.

I support companies from the selection to the successful introduction and integration of new systems. With my structured and hands-on approach, I optimise processes, minimise risks and ensure a smooth transition. Efficient digitalisation increases productivity and competitiveness in the long term.

I accompany companies through the entire M&A process - from due diligence to successful integration. With my experience in finance and change management, I ensure that strategic changes are implemented smoothly and sustainable value is created.

I take on interim management tasks, coach existing teams and support them in developing their expertise. My approach combines strategic foresight with operational excellence to strengthen companies in challenging phases in a targeted manner.

Success criteria

How my commitment in leads to success in your company

My structured approach ensures that I provide your company with effective and targeted support. From analysis to implementation and handover - every step is designed to achieve sustainable results.

Clear order objective -> "let's talk Turkey"

The goal of interim management must be clearly outlined together with the client from the outset. This is the only way to achieve goal-orientation and customer satisfaction with regard to the results to be achieved.

Technical expertise -> "know-how is a non-negotiable"

As an interim CFO and COO for many years, I have all the professional tools and the necessary network to master the challenges we face.

Solution and result-orientation -> "not admiring the problem"

An 80% solution is better than a 100% plan. The method plays a subordinate role. Whether "agile" or "waterfall", the result is what counts.

Time management -> "hit the ground running"

An interim manager usually has very limited time to realise the goals set. Efficiency, goal-orientation ("train to the goal") and immediate decision-making and deployability are therefore decisive factors.

Cooperation -> "teamwork makes a dream work"

A trusting co-operation with top performers in the company is indispensable. Together, the full potential of an interim manager can best be realised.

My value proposition

Why are my customers satisfied?

I know the special challenges that arise from a high rate of growth in the finance area and back office.

Results-orientated approach

With a clear focus on measurable results, I ensure that your goals are achieved efficiently.

Versatility in design

With a structured and agile approach, I adapt flexibly to your needs.

Hands-on mentality

I combine operational excellence with the ability to build strong and sustainable relationships.

Human touch

Ultimately, it's about motivating people. I form teams, promote talent and create a positive 'can-do' mentality.

The results achieved and the customer feedback speak for themselves.

REFERENCES

What my customers and partners say

Find out how my clients organise their collaboration with me and what they have to say about it and the results achieved.

RUBEN FAUST

The brains behind Faustsolutions

After studying business administration at the University of Cologne, specialising in auditing and banking, and gaining experience as an auditor at Ernst & Young, my career path led me to the finance department of the Coca-Cola Company in 1996. After an international CFO career within the group, with stations in Germany, France and the Scandinavian countries, I laid the foundation for Faustsolutions in 2011.

Since then, I have been taking on projects for my clients as an interim manager for CFO and COO tasks.

Since 2018, I have increasingly focussed on start-ups, hyper-growth companies and growth-oriented SMEs.

I am also available for advisory and supervisory board mandates in the sustainability and NGO sector.

Between 2019 and 2025, I was a member of the Supervisory Board of the Bonsucro organisation (www.bonsucro.com) and chaired the Finance & Risk Committee there.

In my private life, I like to ride my motorbike (enduro), sing in a choir and farm a vineyard on the Ahr together with some friends.

Don't admire the problem, work on solutions

My competences

Finance / Accounting

Controlling / Financial Modelling / Cash-Flow Planning / KPI / Score-Card

IT management / ERP implementations

M&A / Acquisitions / Integration

IT & Project Management

Process automation

Legal / HR / Back-Office

"Results first and foremost"

Adaptability & Hands-On

Proven toolset from agile to waterfall

Team player

Start-Up / Hyper-Growth

High-growth SME sector

Complex matrix organisations

NGO / ESG / sustainability organisations

German (native speaker)

English

French

SaaS

FMCG / Retail

Med-Tech

E-Mobility / Automotive

Software / Hardware / High-Tech

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Urkunde über die Auszeichnung "Top 100 Interim" von Ruben Faust

Top 100 Interim certificate

An award that recognises interim managers for their outstanding performance and their ranking among the recognised as one of the 100 best professionals in this field.

Persönlichkeits Struktur Analyse von Ruben Faust

Personality Structure Analysis

A PSA systematically examines a person's characteristics and behavioural patterns in order to understand their individual strengths, weaknesses and motivations.

My mission

That's what I stand for

I am committed to your success! I am committed to your success! My strengths lie in in-depth expertise, targeted implementation and strong interpersonal skills at all levels. I use these proven tools effectively for you.

Would you like to tackle and solve the problems arising from your company's growth?

Would you like to drive your company's growth in a targeted manner?

Especially for StartUps, HyperGrowth and growth companies - contact me!

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Foto von Ruben Faust in klein

Owner

Ruben Faust

Get in touch now!

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