Data Management Employee / Project Employee (Freelance/Secondment)

Project overview

For a large local tax organization in South Holland, we are looking for a data management employee to organize agricultural objects and a project concerning allotment gardens. You will work in the Data Management team of the Real Estate domain and are available immediately.

Requirements

You independently handle and assess mutations, even when the administrative systems and valuation systems each have their own procedures.

With an incoming mutation, you pay attention to data quality, as you contribute to a reliable source registration.

In contact with internal colleagues and taxpayers, you are practical and customer-oriented.

Required competencies

– Collaboration.

– Communication.

– Accuracy.

– Analytical ability.

– Customer focus.

– Proactivity.

Does this assignment suit you?

Then you have years of experience as a data manager in a government organization, you can independently process mutations, and you already work with Centric/Key2belastingen, Ortax, and Way2Go. The assignment lasts 10 months with a chance of extension, at 24 hours per week, with every Monday at the office.

Interested? Respond in a timely manner via the response button.

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• Available for 24 hours per week, by January 1, 2026 at the latest;
• Minimum 5 years of demonstrable work experience in the last 7 years as a data management employee or in a comparable role at a municipality, municipal cooperation, or government organization;
• Demonstrable work experience in the last 5 years with Centric / Key2belastingen;
• Demonstrable work experience in the last 5 years with Ortax and Way2Go;
• Minimum 5 years of demonstrable work experience in the last 10 years with data management for agricultural objects and non-residential objects, including permits, BAG mutations, and support for appraisers;
• Completed education at a minimum HBO bachelor level;
• Demonstrable knowledge of methods for data quality, error handling, and work backlog management within WOZ and BAG processes;
• Possession of own laptop and phone with accessories;
• A VOG.

Project details

As soon as possible

Hours: 24 hours

Dordrecht region

maximum €72 per hour

10 months

Extension: 2 times 2 months

Working method: Monday to Friday, hybrid working in consultation, every Monday at the office

Respond by: November 11, 2026

Procurement: Yes

You use your own IT resources: laptop, phone, and accessories. The rate is exclusive of VAT and includes travel and parking costs. A Certificate of Conduct (VOG) is required for the assignment.

The assignment

The organization levies and collects local taxes for 14 municipalities and a water board. It performs the WOZ, a series of other local taxes and levies, and for a number of municipalities also the BAG. Approximately 90 colleagues work there.

Within this work, you will process data for local taxes and WOZ. You will compile, check, and mutate agricultural objects, and you will participate in the project concerning allotment gardens.

What will you do?

You will record and mutate object data in the relevant applications so that the registration is correct for taxes and WOZ.

You will perform field and model-based checks, as the data for agricultural objects must be accurate before processing.

You will measure and process building and demolition permits, and you will process BAG mutations.

You will process changes in LV-WOZ and LV-BAG.

You will check incoming mutations for quality before they are entered.

You will support appraisers and other colleagues with investigations and objection procedures, and clearly transfer dossier information for objection and appeal cases.

You will independently assess and process mutations and keep the team's work backlog manageable.

Intended results

The mutations and processing in Centric/Key2belastingen, Ortax, and Way2Go are usable, on time, and error-free. Dossier information for objections and appeals is clearly transferred, and you actively contribute to managing the work backlog.

Collaboration

You will work closely with colleagues from the Data Management team and the WOZ team. During weekly starts, you will determine with them which work backlogs take priority and coordinate progress.

• Start: Zo snel mogelijk
• Duration: Verlenging: Ja
• Remote: hybrid
• Location: Dordrecht, NL
• Rate: unknown-72 EUR/h
• Languages: Dutch