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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