# Mainframe Developer

- **Company:** KEYES
- **Location:** Herstal, Liège, Belgium
- **Workplace:** Hybrid
- **Salary:** Salary: unknown
- **Seniority:** Mid
- **Role:** Software engineering (general)
- **Countries:** Belgium
- **Languages:** COBOL, Java, JavaScript
- **Employment type:** fulltime_permanent
- **Posted:** 2026-10-23
- **Key facts:** Stack: COBOL, Java, JavaScript, Angular; Experience: 5+ years; Languages: English, French (Dutch is a plus)
- **Job page:** https://rolefalcon.com/job/88868814-mainframe-developer-keyes-herstal

KEYES, a tech services company in consulting, agencies and business services, is hiring for the role of Mainframe Developer. The role is hybrid, based in Herstal, Belgium. Our labels mark it as a mid-level role in software engineering (general). The posting names Angular, COBOL, Java and JavaScript. It asks for 5+ years of experience. English and French are required. Dutch is a plus. KEYES has 14 open positions on this site, 8 of them in IT and engineering.

To apply, open the job page above and follow its Apply link to the original posting.

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