Interim assignments in finance
Are you an interim professional with a background in the financial sector? Through us, you’ll work on a freelance basis with organisations that can really benefit from your expertise.
It’s good to know that since the introduction of the DBA Act, there are fewer interim assignments available. That’s why many professionals now choose to work on a secondment basis: you keep the freedom and variety of project-based work, but with the security of a fixed income, guidance, and development opportunities through us.
Within secondment, there’s also a wider range of assignments available - in Finance, Risk, Data and IT - giving you plenty of choice to match projects with your experience and ambitions.
When you work on secondment, you remain employed between projects, receive a salary, and continue building your career within your field.

What you bring as an interim professional
- At least 5+ years of experience in the financial sector.
- And have built up specific professional knowledge in the field of Finance, Risk, Data, or IT.
- Independent and proactive.
- You're not looking for a permanent position.

Frequently asked questions about interim work
Staat je vraag er niet tussen?
What’s the difference between secondment and interim work?
As a secondee, you work on projects at different organisations but are employed by Solid. This means you receive a fixed salary, build up a pension, and get access to coaching and development opportunities through us. Between projects, you remain employed, and we help you plan your next step.
As an interim professional or freelancer, you work independently — arranging your own projects, administration, and insurance. That gives you freedom but also less security. In addition, the DBA Act has made the rules for interim work stricter, which is why secondment is often the better choice for those who want variety while keeping stability.
How long do most interim assignments last?
An assignment typically lasts between 6 and 9 months. Some projects are shorter — around 3 months — while others run for a longer period. And if it’s a great fit, there’s often the opportunity to stay on, even if that wasn’t the plan at first.
What does the DBA Act mean for me?
The DBA Act (Assessment of Employment Relationships Deregulation Act) determines whether you truly work as an independent contractor or are, in practice, considered an employee of your client.
For interim professionals, this means companies have become more cautious about hiring freelancers. They want to avoid the risk of the tax authorities later classifying the collaboration as false self-employment. As a result, there are fewer interim assignments available, especially at large organisations.
With secondment, you don’t face that risk - you’re employed by Solid and work temporarily with different organisations. This gives you more security, both for yourself and the client, while still allowing you to work on a variety of projects.
Which sectors are you active in?
Through us, you’ll work on projects at organisations in the financial, telecom and energy sectors - including ING, Rabobank, KPN and Eneco.
We also collaborate with companies outside these industries, as long as the assignment fits your experience and our way of working. This ensures every project stays challenging and relevant to your growth.
Experiences from our interim professionals

Bertan Wichers
Interim Business Intelligence Consultant bij ING"At Solid Professionals, you get the freedom to choose an assignment that truly suits you. Recruiter Sifra genuinely listened to my preferences regarding the assignment, location, and rate. It’s no coincidence that my contract has already been extended twice!"

Lisa Lu
Interim Quantitative Regulatory Modelling Analyst bij de Volksbank"Through Solid Professionals, I landed two great assignments at de Volksbank! Recruiter Sifra is sharp, proactive, and spots opportunities. Thanks to her professionalism and market knowledge, I was able to make a strong start right away as a freelancer!"
Our interim vacancies
Ready for a new assignment?
Interested in working as an interim professional through Solid Professionals? Sign up using this form. If a suitable assignment comes up, Sifra will get in touch with you.
