Lead Networks & Telecommunications Engineer

Job Description

We are seeking a Lead Networks & Telecommunications Engineer to own the architecture, security, and automation of global Cisco ACI data center fabrics while driving the design and delivery of advanced load balancing and ADC solutions across production environments.

Please note that travel to the Netherlands is required.

This position offers hybrid setup with the flexibility to work from any location in Lithuania, whether it's your home or our dynamic offices in Vilnius and Kaunas.

• Lead the architecture, security, product and service design, automation, and innovation efforts for a global Cisco ACI fabric across production data center environments
• Define product descriptions and tiered service offerings for ADC and DCLAN services, including explicit SLOs for availability, failover time, and change-request lead time
• Maintain service catalog alignment to business consumption models
• Design and implement secure incident recovery environments using ACI VRF remap as the containment primitive to enable isolated failover testing across Firepower, FortiGate, and F5 without production impact
• Identify and document platform constraints impacting VRF remap behavior
• Architect and deliver F5 BIG-IP Dual-PBR No-SNAT migrations on ACI 6.0, producing validated configuration bundles, automated deployment scripts, and validation documentation
• Drive ACI ESG micro-segmentation strategy and migration execution, including phased contract design
• Build Python tooling for tenant migration validation and configuration generation
• Design Cilium BGP L3Out integration for Kubernetes workloads on ACI, including BFD tuning for VMware compatibility and route-map controls to prevent pod CIDR leakage into the fabric VRF
• Build hybrid IaC pipelines for F5 BIG-IP LTM/SSL services with tiered service models and ServiceNow-triggered provisioning
• Ensure operational excellence by sustaining high fabric availability, reducing unscheduled outages, meeting aggressive CVE patch timelines, and maintaining strong zero-trust segmentation audit scores

Requirements

• 5+ years of experience with Cisco ACI (Multi-Pod, Multi-Site, ESG, PBR Service Graphs, APIC REST API) and Nexus 9K/7K/5K platforms
• 5+ years of experience with VXLAN and vPC technologies in data center fabric environments
• 3+ years of experience with F5 BIG-IP (LTM, GTM/DNS, iRules, PBR, DSR, SNAT/No-SNAT) and Citrix NetScaler
• English proficiency at B2 level or higher

Nice to have

• Skills in Terraform and Ansible/AWX for infrastructure automation
• Proficiency in Python for scripting and tooling development
• Familiarity with GitLab CI/CD, GitHub Actions, and Azure DevOps Pipelines

Company offers

• Engineering Heritage: Best-in-class experts sharing a culture of engineering excellence and tackling complex engineering challenges for over 30 years
• Advanced Tech Stack: Innovative projects where you can apply or enhance your expertise in Cloud, Data, AI, and other emerging technologies
• World-Class Clients: Work closely with 340+ of the Forbes Global 2000 on creating disruptive solutions that make a global impact
• Professional Growth: Exceptional support for career development with comprehensive resources for upskilling or reskilling in pioneering practices
• GenAI Community: Strong AI competencies with 600+ experts across 55+ locations driving GenAI-enabled transformation journeys
• Entrepreneurial Culture: If you're passionate and dedicated to improving business transformation, we provide the support you need to bring your ideas to life
• Hybrid Setup: The flexibility to work from any location in Lithuania, whether it's your home or our dynamic offices in Vilnius and Kaunas
• Other Benefits: Additional vacation and trust days, private health insurance, Employee Stock Purchase Plan and more