Working with Onenine: A Candidate Guide for 2026
Onenine is a Netherlands-based staffing agency specializing in the business services sector. They connect professionals with temporary and permanent roles across corporate functions. The most important thing for candidates to know is that Onenine acts as a bridge to hidden opportunities, requiring a proactive, well-documented profile to stand out.
Who pays Onenine
Paid by the employer, not by you.
Onenine earns a fee from the company that hires you, usually a share of your first-year salary or a margin on your contract rate. Their client is that company.
What that means for you
Expect roles that fit their open vacancies before roles that fit your plan. Ask which company a role is for before your CV goes anywhere, and apply direct where you can.
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Source: JobMentis Agency Directory, 29,247 agencies across 102 markets, 2026.
Their side
Sectors
What roles and sectors does Onenine focus on?
Onenine operates primarily within the business services sector in the Netherlands. They place candidates in professional roles ranging from administrative support and operations to specialized corporate functions. Their focus is on matching talent with companies that require flexible staffing solutions or specific expertise to maintain business continuity.
Where you meet
How does the staffing process work for a candidate?
The process begins with a review of your CV against active client requirements. If your profile aligns, a consultant will reach out for an introductory interview to assess your skills and career goals. Once vetted, they present your profile to relevant hiring managers and manage the interview coordination and feedback loop on your behalf.
What should I expect once I engage with Onenine?
Expect a professional, results-oriented communication cadence focused on active vacancies. Onenine does not charge candidates for their services, as their fees are covered by the hiring companies. While they work to find you a placement, they operate on a non-exclusive basis, meaning you are free to pursue other opportunities simultaneously.
Your side
How can I get on Onenine's radar?
To get noticed, ensure your CV is tailored to the specific business services roles you are targeting. Use clear, industry-standard keywords that highlight your software proficiency and operational experience. Submit your application through their official portal and follow up with a concise email if you have not heard back within one week.
Is Onenine the right fit for my job search?
Onenine is an excellent partner if you are seeking roles within the Dutch business services market and value a streamlined, agency-led approach. However, if you are looking for highly niche executive roles or industries outside of corporate services, you may find better success with specialized headhunting firms. Assess whether their current vacancy list aligns with your specific career trajectory before committing significant time.
How to work with Onenine: candidate playbook
- Ensure your CV highlights specific software skills relevant to business services.
- Update your LinkedIn profile to match the experience listed on your CV.
- Send a follow-up email exactly one week after your initial application.
- Prepare a brief elevator pitch explaining your value proposition for corporate roles.
- Request feedback on your interview performance after every client meeting.
Frequently asked questions
Do I need to sign an exclusivity agreement with Onenine?
No, you are not required to work exclusively with Onenine. It is standard practice in the Dutch staffing market to register with multiple agencies to maximize your exposure to different job markets.
What happens to my personal data after I submit my CV?
Your data is stored in their secure candidate database in compliance with GDPR regulations. It is only shared with potential employers after they have obtained your explicit consent for a specific role.
Should I apply directly to a company if I see a job posted by Onenine?
It is generally advised to stick to one channel. If you apply both through the agency and directly to the company, it can create administrative confusion and may disqualify your application from both sources.
How should I handle a situation where I disagree with how I was presented to a client?
Maintain open communication with your consultant immediately. Clarify the specific points of concern regarding your experience or salary expectations so they can correct the narrative before the client interview takes place.
Applying through Onenine?
Track the role, tailor your CV to the real employer, and prep for the interview with JobMentis.
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General guidance for candidates. JobMentis is not affiliated with the agencies listed.