Bundle
Case Study Series Production
Senior · Case Study Writer
Web3 infrastructure company for payments · 5,000+ employees
€22–€26 / hour
About €430–€720 a month
- 18–30 h a month
- Hybrid · Jerez de la Frontera
- Starts within 7 days
Spain · Updated November 3, 2026
Part-time Case Study Writer jobs in Spain
6 open Case Study Writer tasks are listed for Spain, from €19 to €30 an hour. The typical rate for a senior Case Study Writer here is €25 an hour, built from a market median wage of €15.24. At five hours a week that is about €540 a month.
€25/hrtypical rate, senior level
€15.24/hrmarket median wage
€19–€30range of open task rates
6open tasks tied to Spain or remote in Spain
Open Case Study Writer tasks in Spain
Remote tasks and tasks tied to a city in Spain.
One-off
Customer Case Study
Senior · Case Study Writer
Environmental nonprofit in global health · 51–200 employees
€26–€30 / hour
About €170–€340 in total
- about 9 h in total
- On-site · Valladolid
- Starts within 7 days
- 4 interested
- English and Spanish
Bundle
Case Study Series Production · Healthtech
Senior · Case Study Writer
Series A digital health company for dental practices · 51–200 employees
€21–€27 / hour
About €430–€720 a month
- 18–30 h a month
- Hybrid · Sabadell
- Starts next week
Bundle
Case Study Series Production · SaaS
Specialist · Case Study Writer
Series C HR software company · 501–1,000 employees
€19–€23 / hour
About €380–€630 a month
- 18–30 h a month
- Remote · anywhere in the EU
- Starts within 7 days
- 4 interested
- English and Spanish
Bundle
Case Study Series Production
Senior · Case Study Writer
Retail chain with stores in six countries · 201–500 employees
€24–€29 / hour
About €480–€800 a month
- 18–30 h a month
- Hybrid · Vigo
- Starts within 7 days
- Shortlisting
- English and Spanish
Bundle
Case Study Series Production
Senior · Case Study Writer
Packaged-food brand in baby care · 501–1,000 employees
€21–€26 / hour
About €420–€710 a month
- 18–30 h a month
- Hybrid · Madrid
- Starts within 7 days
- Shortlisting
What Case Study Writer pays in Spain
Employee wage percentiles for the role. Contractors on Deftridge earn more than the median because they carry their own costs.
| Percentile | Per hour | 5 h a week, per month | Full time, per year |
|---|---|---|---|
| 10th | €9.09 | €200 | €18,900 |
| 25th | €11.21 | €240 | €23,300 |
| Median | €15.24 | €330 | €31,700 |
| 75th | €18.02 | €390 | €37,500 |
| 90th | €27.39 | €590 | €57,000 |
Source: Eurostat, 2022; aged to October 2026 with a wage index and calibrated on posted pay. Method.
Deftridge rate by level
| Level | Per hour | Per month at 5 h/week |
|---|---|---|
| Specialist | €21 | €460 |
| Senior | €25 | €540 |
About this role
Interviews a customer and turns the result into a case study with numbers a buyer can check. Usual tools: Zoom, Google Docs, Notion, Canva.
Working on the side in Spain
What to check before you take a task next to a full-time job. Orientation only; none of it is legal or tax advice.
Before you start
- Read the outside-work and conflict-of-interest clauses in your employment contract.
- Check for a non-compete or a duty to disclose side income to your employer.
- As a contractor you are usually responsible for your own income tax and social contributions; a local accountant can size the amounts.
Your recruiter walks through these points with you before you accept a task. Read the guides
Case Study Writer rates nearby
Other Marketing & Content roles in Spain
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Questions about pay, fees and privacy
The same rules apply to every task, so they live on two pages: Pricing explains the 15% fee, prepayment and when you are paid; How it works covers matching, what a company sees and side work next to a job.