Security Infrastructure Engineer

We are seeking a Senior Security Infrastructure Engineer with strong hands-on experience in enterprise security technologies.

This is a pure security-focused role — it does not include traditional networking (routing/switching) responsibilities.

The position focuses on firewalls, application security, traffic analysis, WAF, secure email gateways, and ADC/load-balancer platforms.

What will be your key responsibilities:

  • Operate, configure, and maintain enterprise-grade security systems across firewalls, email security, WAF, and ADC platforms.
  • Troubleshoot and manage Cisco ASA/Firepower, Fortinet FortiGate, and ForcePoint NGFW/Web/DLP solutions.
  • Perform advanced NetFlow traffic analysis to identify anomalies, threats, and capacity issues.
  • Support application-layer security, including WAF concepts, protections, and related security mechanisms.
  • Operate and maintain Citrix NetScaler (ADC) and F5 BIG-IP platforms (LTM/ASM/APM depending on environment).
  • Manage secure email gateways, including Cisco IronPort (ESA), and support migrations to Fortinet email security.
  • Execute firmware upgrades, hardening, and optimization of security rules, policies, and configurations.
  • Respond to A+/A/B/C security incidents, conduct root cause analysis, and prepare documentation and SLA/operational reports.

What experience should you have:

  • Firewalls & Perimeter Security: Strong hands-on experience with Cisco ASA/Firepower, Fortinet FortiGate, and ForcePoint NGFW/Web/DLP.
  • Traffic Analysis: Ability to analyze NetFlow data and identify anomalies, capacity issues, and potential threats.
  • Application Security: Experience with application-layer security and solid understanding of WAF concepts and protections.
  • ADC / Load Balancers / Proxy: Practical experience with Citrix NetScaler (ADC) and F5 BIG-IP (LTM/ASM; APM is an advantage).
  • Email Security: Experience with Cisco IronPort (ESA); Fortinet email security is an advantage.

  • 4–5+ years of enterprise security engineering experience
  • Strong troubleshooting and analytical skills
  • Solid documentation and operational discipline
  • Ability to work independently during critical/high-severity incidents

What do you get in return:

  • Modern technologies, multi-site infrastructure, and complex environments
  • High autonomy with opportunities to improve architecture
  • Professional growth and certification opportunities
  • Hands-on responsibility in a supportive team environment
I want to apply

Send offer to e-mail

More positions in category Information Technology, region Bratislava - Hybrid

AI SERVICES - Lead Full Stack Developer in Bratislava

  • DEUTSCHE TELEKOM SK
  • Bratislava
  • 3 500 EUR/m

Deutsche Telekom Services Europe is an internal services provider of Deutsche Telekom, one of the world's leading integrated telecommunications companies. Our shared mission is to put priority on…

AI SERVICES - Lead Full Stack Developer in Bratislava

Software engineer (A974)

  • IT match
  • Hybrid BA (1x mes)
  • 300 - 350 EUR/deň

Našim klientom je spoločnosť, ktorá je dlhodobo etablovaným hráčom v oblasti dátovej analytiky a digitálnej transformácie, s bohatou históriou a odborným know-how. Pomáha firmám premeniť komplexné…

Software engineer (A974)

AI SERVICES - Business Process Analyst–AI & Automation Solutions /BA/

  • DEUTSCHE TELEKOM SK
  • Bratislava
  • 3 500 EUR/m

We are seeking an experienced Business Process Analyst to join our dynamic team as a digitalization expert. In this role, you will bridge the gap between business needs and technical implementation,…

AI SERVICES - Business Process Analyst–AI & Automation Solutions /BA/