Senior Network System Engineer Opportunity

TH3RA Consulting company

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Senior Network System Engineer in PORTUGAL

Remote 3 months ago

🚨 ATTENTION! YOUR CV WILL BE AUTOMATICALLY REJECTED IF YOU DO NOT MEET ALL OF THE FOLLOWING REQUIREMENTS:


✅ Born in Europe

✅ Hold European Union Citizenship

✅ Currently reside in a European country


All three conditions are mandatory for this position.

Please do not apply if you do not fully meet all of them.


IT means everything to us!

At TH3RA, we deliver IT solutions that empower global businesses to achieve their digital ambitions. With deep expertise and a commitment to excellence, we support clients across industries in building resilient, scalable, and secure infrastructures.


We are URGENTLY hiring a Network Engineer, with Load Balancing and ACI Specialist

💼 Start date: May/June 2025

🌍 Location: Remote

🔁 Long-term project – 12 months minimum period


Role Overview:

We’re looking for a Senior Network Engineer with deep hands-on experience in ACI / Load Balancing with F5 BIG-IP platforms to join our high-impact team and work on large-scale, high-availability environments.

The role also touches on routing, switching, security integrations, and automation, emphasizing reliable and secure service delivery.

🔧 Responsibilities:

  • Design, implement, and support advanced load balancing solutions (L4–L7)
  • Administer and troubleshoot F5 appliances (BIG-IP LTM, GTM, APM, ASM)
  • Manage DNS, SSL offloading, and web application security integration
  • Collaborate with project teams to deliver scalable network architectures
  • Lead and support incident, change, and problem management activities
  • Automate tasks using Ansible, Python, or similar tools
  • Monitor network performance and ensure SLA compliance
  • Work closely with cloud and security teams on infrastructure integration
  • Contribute to documentation and internal knowledge sharing


💡 Your Profile:

Must-Have Experience:

  • 4–6+ years of experience in large-scale networking environments
  • ✅ Proven expertise in F5 BIG-IP: LTM, GTM, APM, ASM
  • ✅ Strong knowledge of TCP/IP, HTTP/HTTPS, DNS, SSL/TLS
  • ✅ Experience with load-balancing algorithms (round robin, least connection, etc.)
  • ✅ Familiar with Cisco ACI, VXLAN, EVPN, BGP, OSPF, VRF, etc.
  • ✅ Network automation skills: Ansible, Python, Git, etc.


Nice to Have:

  • Experience with other load balancers (HAProxy, NGINX, Citrix ADC)
  • Cloud networking exposure (AWS, Azure, GCP)
  • Understanding of DevOps practices and observability tools (Grafana, Prometheus)
  • Certifications (F5 CTS, CCNP, DevNet, etc.) are a big plus


Soft Skills:

  • Strong communicator and team player
  • Proactive mindset and hands-on approach
  • Fluent in English (spoken and written)


🚀 Why Join Us?

  • 🌍 Work on strategic international projects
  • 🧠 Engage with highly skilled teams and modern technologies
  • 💻 100% remote-friendly and flexible work setup
  • 📈 Long-term growth potential


📩 Apply now by sending your CV in English to: jobs@th3ra.com with the subject: NETLB2025


🔥 Don't miss this opportunity — we’re waiting for you!

Apply now

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