Senior Network Engineer w Warszawa, Polska

Join a global enterprise team dedicated to shaping the future of international IT infrastructure . In this high-impact role, you will bridge the gap between high-level architectural design and robust security engineering across global LAN, WAN, SD-WAN, WLAN, and network security domains .

Rather than focusing on routine operational handling, you will take ownership of High-Level (HLD) and Low-Level Designs (LLD), drive continuous infrastructure optimization, and solve complex, high-tier technical challenges . You will act as a Subject Matter Expert (SME), partnering with our Managed Service Provider (MSP) and cross-functional international teams to deliver resilient, high-performing networks .

What we expect from you?

• Experience: Minimum 5+ years of hands-on experience in enterprise-scale network and security design, implementation, and troubleshooting .

• Core Networking Expertise: Deep proficiency in TCP/IP, BGP, OSPF, STP, and hands-on experience with Cisco enterprise products (Catalyst switches, Nexus switches, routers, and ISE) .

• WAN / SD-WAN Mastery: Proven background in WAN and SD-WAN deployment, optimization, and advanced troubleshooting .

• Network Security & Firewalls: Strong proficiency with Next-Generation Firewalls—preferably Fortinet/FortiGate .

  (Note: If you possess strong core network/SD-WAN background without prior Fortinet experience, we will fully sponsor and support your Fortinet NSE 4 certification within your first 6 months) .

• Certification / Knowledge Level: Cisco CCNP or equivalent practical depth (current or expired certifications are accepted) .

• Languages & Soft Skills: Excellent spoken and written English (B2+/C1 level) for daily collaboration with global teams . Strong analytical mindset, assertiveness, and team-player attitude in international environments .

Nice to Have

• Hands-on experience with Web Application Firewall (WAF) tuning, rule creation, and false-positive mitigation .

• Solid understanding of protocols, web application security (OWASP Top 10), and SSL Inspection .

• Experience with hybrid DNS environments (on-premises and cloud integration) .

What you can expect from us?

• Contract: Long-term Employment Contract ( Umowa o pracę ) .

• Bonuses: Annual performance bonus (up to 7%) + festive financial benefits paid twice a year (April & December) .

• Health & Security: Comprehensive private medical care (Medicover, with options for family coverage) and group life insurance .

• Professional Growth: Full coverage of training courses and professional certification exams (e.g., Fortinet) .

• Perks & Wellbeing: Sports card (Medicover Sport), language courses, flexible working hours, and regular team wellbeing activities .

Employment agency entry number 47

this job offer is intended for people over 18 years of age

What will your tasks involve?

• Architecture & Design: Design, test, and develop enterprise-wide network and security infrastructure across LAN, WAN, WLAN, and supporting core services (DNS, IPAM, AAA) .

• Business Partnering: Serve as a primary technical consultant translating complex business needs into scalable HLD and LLD solutions .

• Security Standards: Enforce network security policies, Next-Gen Firewall rulesets, Web Application Firewall (WAF) policies, and secure remote access protocols in coordination with global cybersecurity teams .

• MSP Oversight & SME Leadership: Act as an SME providing technical guidance to our external Managed Service Provider (MSP) . Validate Low-Level Designs, steer critical escalations (P1/P2), and ensure operational consistency .

• Process & Automation Enhancement: Drive operational efficiency within an Agile team structure, streamlining IT processes and supporting Infrastructure-as-Code (IaC) initiatives