Senior System Engineer

Location: Athens, gr

Company Description

Are you ready to shape the future technological landscape in Europe?

We are dedicated to responsible digitalisation, building innovative, inclusive solutions that drive meaningful impact. With over 8,900 professionals across Europe, we help EU institutions, public and private organisations thrive in a rapidly evolving digital world. Are you ready to shape the future through technology? Your journey starts here. Take a look at some of our impactful projects here: https://netcompany.com/cases/

Job Description

Are you ready to discover the role of a Senior System Engineer in Netcompany?

As a Senior System Engineer you will:

• Own and manage the AIX and Linux server infrastructure supporting card transaction processing applications, Oracle RAC databases, and middleware platforms.
• Design and maintain comprehensive infrastructure monitoring using Grafana, Prometheus, Telegraf, Graphite, and ELK Stack, including production dashboards, alerting, and KPI tracking (uptime, MTTD, MTTR, capacity utilisation, SLA compliance).
• Develop production-grade scripts and automated tooling for infrastructure automation, health checks, certificate lifecycle management, configuration drift detection, and environment provisioning.
• Manage Oracle Tuxedo and Oracle WebLogic Server infrastructure, serving as the primary escalation point during critical production incidents.
• Lead root cause analysis for application and/or infrastructure, using system logs, core dumps, sar data, vmstat/iostat captures, and network traces.
• Mentor junior engineers on systems administration, scripting, and troubleshooting methodologies.

Qualifications

What would make you a fit for the role:

• Bachelor's degree in Computer Science, Information Technology, Systems Engineering, or related field. 
• Minimum 5 years of production experience in Unix/Linux systems engineering.
• Hands-on expertise with AIX and/or Linux (RHEL/CentOS) system administration.
• Advanced scripting skills with demonstrated ability to build production-grade automation and monitoring tooling.
• SQL with hands-on experience supporting Oracle Database environments (RAC awareness would be a plus).
• Proven track record managing production incidents in mission-critical environments, including root cause analysis using system logs, core dumps, and performance data.
• Excellent command of the English language, both written and verbal.

It would also be a plus if you match some of the following:

• Knowledge of card switching systems, payment processing infrastructure, or financial messaging platforms.
• Experience with performance engineering tools (perf, strace, dtrace, flame graphs) and vendor support escalation workflows.
• Experience with Oracle Tuxedo and/or Oracle WebLogic Server administration at the infrastructure level.
• Understanding of networking fundamentals (TCP/IP, DNS, NFS, firewalls, load balancing).

Additional Information

Being a part of the Netcompany team, you will be provided with: 

• The opportunity to work in a modern environment & in a hybrid working model
• A seamless onboarding experience and a buddy to support you on your first steps
• A competitive compensation & benefits package
• Health and life insurance program
• Meal and commuting allowance
• Well-being activities (on premises)
• Continuous learning opportunities using the most modern methods (unlimited access to Udemy for Business, ad-hoc trainings)
• A personalized development plan for targeted career growth

If you are looking forward to be part of a diverse environment, and have the opportunity to work alongside well-experienced professionals, on challenging, large-scale projects that directly impact millions of citizens around the globe, then this is the place to be!

By joining Netcompany in Athens, you will be part of a vivid team of 2,300+ tech professionals. When at the office, you'll have the flexibility to work from our three modern, sustainable, and state-of-the-art offices!

Please upload your CV in English via the Apply button. All applications will be treated as strictly confidential.

We ensure equal opportunities, treatment, and consideration to all candidates. Discrimination based on sex, racial or ethnic origin, religion or belief, disability, age, sexual orientation or marital status, physical or mental disability, or any other factor protected by applicable laws and regulations is prohibited. As part of the Netcompany culture, we respect human rights and focus on creating a positive workplace, where all employees are valued, and where diversity and inclusion are a vital part of our everyday working experience.

In the following link you may find our CV Submission privacy notice: https://netcompany.com/cv-submission-privacy-notice/