Java + Cobol Developer (As/400)

October 4, 2026

Remote (within country)

Middle

Spain

Worth knowing

English is required

Description

Fully remote role in Spain for a developer with solid experience in COBOL and Java (AS/400) environments. The position covers evolutive maintenance, L3 troubleshooting and automation of enterprise Java/Spring applications and transactional legacy systems. The company emphasizes teamwork, work-life balance, flexible benefits and an inclusive culture.

Responsibilities

Evolutive maintenance and correction of Java/Spring applications (monolithic and web), library updates via Maven and proactive vulnerability remediation
Critical troubleshooting of system failures: log trace level changes, memory consumption analysis (heap dumps/memory leaks) and transaction monitoring
Creating and updating scripts and automation to optimize operational deployment and maintenance tasks
Governance and monitoring: configuring dashboards and performance indicators in observability platforms such as Kibana or OpenSearch

Requirements

At least 3-4 years in development, evolutive maintenance and L3 technical support in enterprise environments
Strong command of Java and Spring for backend development
Experience with transactional legacy core environments: COBOL, AS400 and IDL
Hands-on experience with CI/CD delivery ecosystems using Jenkins, Jira and version control

Conditions

100% remote modality within Spain
Flexible schedule and improved vacation days for each year with the company
Flexible compensation: gourmet cheques, private health insurance, transport card, nursery cheques and training
Onboarding process in which you feel at home from the first minute, plus a welcome pack
Gamification platform recognizing contribution, involvement and commitment
Multidisciplinary People & Culture team focused on wellbeing and motivation
Equal opportunities, anti-discrimination and work-life conciliation policies
Vacancies open to candidates with a disability certificate

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