Senior Software Developer

Project overview

Assignment Description

For this assignment, we are looking for a senior developer for the Basis Applicatie voor Strafrechtspraak (BAS) to realize the requested changes for BAS. This involves changes that need to be realized in the back-end of the application. As a developer, you will be part of the development team responsible for the (further) development of the application. As a senior developer, you have extensive knowledge of and experience with Java/Kotlin.

Background of the assignment

The Base chain collaboration is, among other things, responsible for delivering ICT services to support the primary criminal justice process within the Judiciary. We are looking for reinforcement for a DevOps team that is involved in the further development and renewal of the Criminal Justice applications. These are applications within the Criminal Justice domain that judges and legal staff can use to register cases and consult files to prepare their legal proceedings and hearings. In a step-by-step transition to renewal, you will make an important contribution to its realization.

The goal of the Base is to deliver high-quality end products by working effectively together in the chain (internally and externally) (from preparation to implementation).

The Base Chain Collaboration is a reliable, professional, and entrepreneurial partner in the (criminal justice) chain for renewing and maintaining the products that support the value stream at the judiciary.

Requirements

Other

Hybrid working is possible. Generally, there is a 50/50 policy, and deviations are possible in consultation.

Additional Information

When you offer a professional to us as a supplier and they are placed, we will need information from you as a contracting party, including regarding the Chain Liability (Wet keten- en inlenersaansprakelijkheid). The purpose of the 'WKA' is to prevent abuse in the remittance of payroll taxes at all links in the chain; from supplier to client. We cover these risks for our clients through a blocked account, the G-account. This is an account to which a portion of the invoice amount is deposited and from which you can pay payroll taxes and VAT to the Tax Authorities.

The percentage to be deposited depends on whether you have an SNA certification (NEN-4400-1 or NEN-4400-2) and whether your company is established in the Netherlands or abroad. You can apply for the G-account from the Tax Authorities. If you cannot obtain a G-account (and you can provide proof of this from the Tax Authorities), you also have the option to submit an auditor's report (assurance report regarding personnel lending) every quarter. In this report, a certified accountant (AA or RA) will issue a statement about the correctness, completeness, and timeliness of the remittances.

Please note that the costs for this report are at your own expense.

• HBO work and thinking level
• Experience as a Senior Developer in a Java environment
• Working in an Agile/Scrum/DevOps environment
• Java, WCC, OBS, and (Oracle) databases
• Splunk and AppDynamics

Project details

• Start: 2026-12-31T23:00:00
• Remote: hybrid
• Location: Den Haag Zuid-Holland, NL
• Languages: Dutch