Production Support & SysAdmin — Java/Linux Expert

Decskill; Lisboa; On-site; EUR 38,000 - 54,000; Full time

Job summary

Decskill is seeking an Application Support & Sys Admin to ensure production application availability, stability and performance from Lisbon, with strong DevOps collaboration. You will work across Production Support and Development teams, implementing fixes, upgrades, and ongoing improvements to platforms and services.

The role requires knowledge of Java servers, Linux, Kubernetes, API Gateways, CI/CD, IaC, and monitoring/observability, with ITIL practices and on-call readiness.

Qualifications

• Experience with Java application servers and Java performance analysis (heap/threads).
• Strong knowledge of Linux administration (RHEL or equivalent).
• Experience with monitoring and observability platforms and distributed tracing, metrics, logging, dashboards, and alerting.
• Experience with CI/CD pipelines and Automation/Infrastructure as Code (IaC).
• Experience with relational databases and ITIL processes.

Responsibilities

• Monitor and maintain application availability, stability, and performance.
• Manage incidents and problems, participate in major incident management and RCA.
• Coordinate fixes between Production Support and Development teams; implement upgrades and patches.
• Design, deploy and enhance applications with DevOps practices; support on-call rotations.

Skills

Team collaboration

Problem-solving

Time management

Attention to detail

English proficiency

Resilience

Autonomy

Tools

Kubernetes

API Gateway

CI/CD pipelines

IaC tools

Cloud platforms

Job description

Decskill is seeking an Application Support & Sys Admin to ensure production application availability, stability and performance from Lisbon, with strong DevOps collaboration. You will work across Production Support and Development teams, implementing fixes, upgrades, and ongoing improvements to platforms and services.

The role requires knowledge of Java servers, Linux, Kubernetes, API Gateways, CI/CD, IaC, and monitoring/observability, with ITIL practices and on-call readiness.