Administrative assistant who automates everything - First Case

Jobster; Wateringen; On-site; EUR 44,000 - 49,000; Full time

Benefits offered by this job

Budget for API credits, licences, and

Carte blanche in your toolbox: Claude,

Voice in system selection: ERP, time,

24 to 40 hours, employed or on invoice

Job summary

Jobster in Wateringen is seeking a hands-on automation-minded professional to take over admin tasks and turn repetitive work into scripts and system links. You will handle invoices, time entries, work orders, and bank transactions, while shaping the automation roadmap with a small, entrepreneurial team.

You bring practical automation results, a disciplined admin process, and the ability to explain technical ideas to non-technical colleagues. Diplomas aren’t required.

Qualifications

• You have built something that actually runs, and you can show it
• Your administration is in order: an invoice with the wrong VAT is not a learning moment
• You know where a language model goes wrong and you build in the checks right away
• You can explain what you build to people who are not systems people
• The rest you learn here, and we do not look at diplomas

Responsibilities

• Half your week is administration and the other half you automate that administration away
• Develop scripts or links between systems to streamline invoices, time registration and banking
• Explain complex automation concepts to non-technical team members
• Collaborate with a small entrepreneurial team to scale automation initiatives

Skills

Automation

Invoicing

Time registration

Explain to non-technical

Language model checks

Tools

Claude Code

MCP

TypeScript

Postgres

Job description

Half your week is administration. The other half you automate that administration away. Invoices, time registration, work orders and bank transactions: that work is yours, and it keeps running. Alongside that, you automate it. Do something by hand twice and the third time you turn it into a script, an agent or a link between two systems. You work with a small team of entrepreneurs with a serious passion for AI and automation. We are building the company of the future ourselves. Will you build it with us?

The essentials: Salary €3.900 to €4.400 per month

• 40 hours per week
• Fulltime
• Based in Wateringen.

€3.900 to €4.400 gross per month at 40 hours, depending on what you bring. If you would rather work on invoice, we will talk about an hourly rate. Below 40 hours we calculate pro rata. What You Bring

• You have built something that actually runs, and you can show it
• Your administration is in order: an invoice with the wrong VAT is not a learning moment
• You know where a language model goes wrong and you build in the checks right away
• You can explain what you build to people who are not systems people
• The rest you learn here, and we do not look at diplomas

What We Offer

• Decisions within hours: no IT department saying no, no change advisory board, no steering committee where you get to have a say
• Budget for API credits, licences, models and a machine that can handle it
• Carte blanche in your toolbox: Claude Code, MCP, TypeScript and Postgres are on the table, what you add is your call
• A voice that weighs heavily in which systems we buy: ERP, planning, time registration, accounting
• 24 to 40 hours, employed or on invoice, by arrangement

"A data center runs because everything in it is measured, logged and automated. That is exactly what we want from our own administration."

• First Case
• on this role