INFRASTRUCTURE SECURITY DESIGN ENGINEER

ABOUT THE COMPANY

LITIT, a joint venture between NTT DATA and Reiz Tech, is a company with deep-rooted industry know-how, dedicated to innovation within the IT sector. Its primary focus is delivering high-quality solutions in the DACH region. With a commitment to excellence, LITIT combines the best of German precision, Japanese work ethics, and Lithuanian talent to provide unparalleled IT service and support to its clients.

ABOUT THE ROLE

As an Infrastructure Security Engineer you will apply your developing expertise in network security, infrastructure technologies, and security controls to support the design, implementation, and maintenance of secure infrastructure solutions. You will contribute to infrastructure security projects, perform security configurations, and develop your skills across network security technologies while receiving regular guidance from senior team members.

RESPONSIBILITIES

Infrastructure Security Implementation Support

• Assist in implementing network security controls including firewalls, IPS/IDS, and proxies under supervision.

• Configure basic network security policies and access control lists following approved designs.

• Support network segmentation implementations and VLAN configurations.

• Assist with VPN setup and secure remote access solution deployments.

Security Technology Configuration

• Support deployment and configuration of security technologies including SIEM, EDR, and endpoint protection.

• Assist in integrating security tools with existing infrastructure under supervision.

• Support security technology testing and validation activities.

• Troubleshoot basic security technology issues with senior guidance.

Security Configuration and Hardening

• Apply security hardening standards to servers, workstations, and network devices under supervision.

• Implement CIS Benchmark configurations for Windows and Linux systems.

• Perform security baseline assessments using automated scanning tools.

Security Monitoring and Incident Support

• Monitor security alerts and events from SIEM and security tools under guidance.

• Perform initial triage of security incidents and escalate appropriately.

Technical Documentation and Reporting

• Create and maintain accurate technical documentation for security implementations.

• Produce network diagrams, configuration guides, and runbooks under supervision.

Security Testing and Validation

• Perform straightforward security testing activities under supervision.

• Conduct vulnerability scans and analyze results with guidance.

• Validate security control implementations against requirements.

REQUIREMENTS

• Basic understanding of network security principles and architectures.

• Familiarity with firewall concepts and basic configuration (Palo Alto, Cisco ASA, Fortinet).

• Knowledge of common security technologies (antivirus, IPS/IDS, proxies).

• Understanding of Windows and Linux operating system security.

• Basic scripting skills (PowerShell, Bash, Python) for automation tasks.

• Network protocols: TCP/IP fundamentals, routing basics, switching, VLANs

• Network services: DNS, DHCP, NTP, Active Directory basics

• Virtualization: Basic VMware or Hyper-V knowledge

• Operating systems: Windows Server administration, Linux command line

• Awareness of AWS, Azure, or GCP security concepts.

• Experience with or willingness to learn SIEM platforms (Splunk, QRadar, Sentinel).

• Familiarity with endpoint protection platforms (CrowdStrike, Carbon Black, Defender).

• Knowledge of vulnerability scanning tools (Nessus, Qualys, OpenVAS).

• Understanding of network monitoring and packet analysis tools.

• Basic knowledge of security automation and orchestration concepts.

• Strong attention to detail and accuracy in technical work.

CERTIFICATIONS REQUIRED

• Security+ or equivalent foundation security certification - Mandatory

• Network+ or CCNA certification - Required or in progress

• Microsoft or Linux certification - Preferred

• Working toward: CCNA Security, SSCP, or vendor security certifications

WHAT WE OFFER

• Salary range: €3000 - €4000 (GROSS) / month.

• Learning opportunities with compensated certificates, learning lunches, and language lessons.

• Chance to switch projects after one year.

• Team building twice a year.

• Office in Vilnius, Lithuania that offers themed lunches and a pet-friendly environment.

• Remote work opportunities.

• Flexible time off depending on a project.

• Seasonal activities with colleagues.

• Additional health insurance and loyalty days for Lithuanian residents.

• Referral bonuses.

• Recognition of important occasions of your life.