Network & Security Engineer (pfSense / OPNsense)

Accountabilities:

• Manage day-to-day network and firewall operations while contributing to infrastructure projects and technical improvements.
• Independently implement, configure, maintain, and document IPSec VPNs and firewall rules using pfSense and OPNsense.
• Design and document network environments for customer and internal projects, ensuring configurations and implementation plans are documented before deployment.
• Perform advanced network troubleshooting, including deep packet analysis and the resolution of complex routing, switching, and VPN connectivity issues.
• Configure and maintain network infrastructure involving IPv4, IPv6, dynamic routing protocols, and switching technologies.
• Introduce and develop basic network automation using tools such as Ansible, Python, or Bash to streamline deployments and operational workflows.
• Collaborate with the Security Operations Center (SOC) team to analyze firewall logs, investigate security events, and help mitigate incidents.
• Identify opportunities to improve network configurations, technical designs, security practices, and operational efficiency.
• Train and onboard new colleagues, share technical knowledge, and contribute to the team's professional development.
• Participate in a rotating duty schedule with the Network Operations Center (NOC) and SOC teams, including nights, weekends, and public holidays.
• Take on additional responsibilities when needed to support colleagues, strengthen team capabilities, and expand technical expertise.

Requirements:

• At least five years of relevant professional experience, excluding educational programs and internships.
• Extensive hands-on experience with pfSense and OPNsense firewall platforms.
• Strong practical knowledge of IPSec VPN implementation, configuration, and troubleshooting.
• Experience with BGP or other dynamic routing protocols.
• Solid understanding of IPv4 and IPv6 networking.
• Experience with switches, preferably Dell equipment, and networking in Proxmox environments.
• Initial practical experience with network automation using Ansible, Python, or Bash.
• Strong troubleshooting and analytical skills, particularly when diagnosing complex network and connectivity issues.
• An independent, structured, and proactive working style, with a strong commitment to accurate technical documentation.
• Excellent collaboration and knowledge-sharing skills, with the ability to work effectively within a distributed technical team.
• Fluency in English and Spanish.
• Willingness to participate in rotating shifts, including nights, weekends, and public holidays.
• Knowledge of German is an advantage.

Practical, in-depth technical expertise is valued more highly than certifications. Seniority is assessed primarily through demonstrated skills and experience rather than years of service alone.

Benefits:

• Fully remote working arrangement.
• Flexible working hours, with the ability to balance additional working hours and personal commitments within the organization's scheduling framework.
• Choice of working from home or from an office.
• Private health insurance.
• Flexible compensation benefits.
• Access to professional training programs, English classes, and professional certifications.
• Opportunities for continuous learning and career development.
• Collaborative working environment that encourages knowledge sharing and technical growth.
• Internal events, outdoor activities, team-building days, and padel matches.
• Office amenities, including refreshments and recreational facilities.
• Holiday flexibility and support for maintaining a healthy work-life balance.