Administrative assistant who automates everything - First Case

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

Benefits offered by this job

API credits budget

Toolbox freedom

Job summary

Jobster in Wateringen is seeking a hands-on professional to automate administrative tasks and manage invoicing, time registration, work orders and banking transactions. You’ll turn manual processes into scripts or integrations between systems and collaborate with a small team of entrepreneurs passionate about AI and automation.

We value practical impact over diplomas and offer a fast-paced environment with budget for API credits and a toolbox that includes Claude Code, MCP, TypeScript and

Qualifications

• Built something that actually runs and can be shown
• Administration is in order; VAT accuracy matters
• Knowledge of language models and built-in checks
• Ability to explain what you build to non-technical people

Responsibilities

• Automate administration tasks and invoicing processes
• Develop scripts and integrations between systems
• Explain technical concepts to non-technical stakeholders
• Own a 40-hour workweek and coordinate with the team

Skills

Automation

Explain to non-technical

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