Senior software developer Java or Python
Published anonymouslyPartner vacancyAn international organisation providing services and supplies for clinical research.South HollandRef. 4246976
Requirements checklist
Your match0/7Key facts
- Job title
- Senior software developer Java or Python
- Market
- Java
- Place
- South Holland
- Salary per month, 40 hours
- €5,000 to €7,250
- Hours per week
- 36 to 40
- Contract
- Permanent
- Level
- Senior
- Education
- Bachelor (HBO)
- Experience
- 5 years
- Work mode
- Not stated
- Languages
- English
- Industry
- Pharma and life sciences
- Employer
- End-user organisation
- Posted
- 23 March 2026
Job description
About the role
An international organisation in clinical research services is looking for a senior developer. This is a newly created role within a global IT and development team. You support the growth of the business applications and guide less experienced developers.
What you bring
- Experience with ERP, data migration, validation, and audit trails in regulated environments
- Fluent English, both spoken and written
- HBO degree in IT, computer science, or a related field, or equivalent experience
- Experience with API development such as REST, XML-RPC, and OpenAPI
- At least 5 years of experience as a full-stack lead developer in Java, Python, or JavaScript
- Experience with OAuth2, SAML, and OpenID, search engines, CI tooling, and Git
- Knowledge of cloud architecture, AWS, and relational databases such as Postgres, MySQL, or Oracle
What you get
- Around four trips a year, some of them international
- Full-time senior role within a global IT and development team
- Newly created position with room to shape it yourself
What you will do
- Work with external vendors and clients on integrations with the applications
- Support the testing and validation of the applications
- Make sure the applications meet scaling and growth requirements
- Guide developers in the design and build of business applications
- Identify and fix security, compliance, and usability risks
- Document system designs, configuration, and operating instructions thoroughly
- Advise internal and external users on resolving operational issues
Skills
12- Java
- Python
- JavaScript
- REST
- XML-RPC
- OpenAPI
- AWS
- Postgres
- MySQL
- Oracle
- OAuth2
- SAML
Growth path
Next step: Lead in Java10 jobs
Median €6,500, middle half €6,500 to €6,688
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Private note
Members only
Salary
EstimateEstimated from comparable jobs in this market, level and region.€5,000 to €7,250
Gross per month for 40 hours, excluding holiday allowance
Confidencebased on 264 Java jobs
- Net per month
- €4,470
- Net per year
- €53,640
- Gross per year
- €79,380
- Tax and contributions
- 32%
- Employer cost per year
- €95,256
- Net per hour, 40 hours
- €25.79
Net per month at EU average prices: €3,712
Same gross in other countries, net per monthEach country at its customary hours and extra pay, for the gross above at 40 hours.
- Switzerland (Zurich)€5,231
- Netherlands€4,470
- Ireland€4,250
- Luxembourg€4,220
- Belgium€3,778
- Germany€3,711
- France€3,615
Tip: ask for the salary scale in the first interview. An estimate is a starting point, not an offer.
Useful?Assumptions and sources
Annual calculation below state pension age. Pension contributions and the 30% ruling are left out.
Tax rules of 2026.
Activity
4- Posted by a partner
- Last seen online
- Online for 164 days
- Text rewritten and checked for anonymity