Overview
Software Developer in Test (SDET) – Cloud Billing & ERP (f / m / d) — Arsys, Alcobendas, Community of Madrid, Spain
What You’ll Do
* Validate features manually and perform regression testing
* Ensure billing accuracy across all Cloud products
* Collaborate on 3rd party integrations (e.G., Salesforce, SAP)
* Own and improve the QA / testing stack in the team
* Experience testing backend REST APIs with JavaScript (Mocha, Chai, Sinon)
* Knowledge of regression, root cause analysis & CI tools (GitLab / GitHub Actions)
* Familiarity with SQL / NoSQL and ERP integrations is a plus
* Strong communication, critical thinking, and an ownership mindset
What makes this role unique?
* High-impact testing :
We are the last line of defence before invoices reach our customers — precision matters.
* No traditional QA setup :
You define and lead the testing strategy within the team.
* Agile mindset in an established company :
We’re part of a large organisation, but work autonomously and proactively.
* Visible impact :
A teammate recently reduced the invoice generation time from 2 hours to 30 minutes — your contributions can be just as meaningful.
What the Team Lead says
I've been with the company for 8 years. I started in QA and moved into backend development, and now I'm a team lead. Why am I still here? Because of the growth opportunities and the amazing people I work with."
* Your work will directly impact mission-critical billing systems
* First challenge :
build a framework for automated invoice regression testing
* Career path :
QA ownership → Dev tasks or Product / Analytics (your choice)
* Training budget for courses, certifications & conferences
* Open, proactive team culture with autonomy and real impact
Qualifications & Details
* Seniority level :
Mid-Senior level
* Employment type :
Full-time
* Job function :
Engineering and Information Technology
* Industries :
IT Services and IT Consulting and Telecommunications
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