Senior Network Engineer

Key Responsibilities

L3/L4 Network Topologies and Overlays:

• Design IP addressing and routing policies (BGP/OSPF/IS-IS), EVPN/VXLAN fabrics, and SDN overlays across data centers and cloud providers. 

• Implement network segmentation, ECMP, high availability, and traffic engineering aligned to SLOs and capacity plans. 

• Execute changes via approved change processes; validate via pre/post checks and rollback plans. 

Cloud Networking Implementation and Operations:

• Configure and manage VPC/VNet constructs, subnets, routing tables, NAT, private/secure connectivity (TGW/VCN peering, PrivateLink/Service Endpoints), and cross-cloud interconnects. 

• Deploy and tune L4/L7 load balancing and service insertion (e.g., proxies, firewalls) to meet performance and resilience goals. 

• Ensure consistent policy and connectivity across on-prem and cloud, leveraging standard blueprints. 

Network Security Controls and Compliance Guardrails:

• Implement segmentation (VRFs, security zones), ACLs/policies, encryption (IPsec/TLS), and DDoS/WAF integrations following zero-trust principles. 

• Apply and maintain compliance controls and evidence (e.g., change records, rule reviews, least-privilege access) in partnership with Security/GRC. 

• Continuously review and optimize firewall and routing policies to reduce risk and improve performance. 

Automation, CI/CD, and Infrastructure as Code:

• Build and maintain Terraform/Ansible (or equivalent) modules/playbooks for repeatable network provisioning and configuration drift control. 

• Integrate network changes into CI/CD pipelines with linting, policy-as-code, unit/integration tests, and automated rollbacks. 

• Develop scripts and APIs for inventory, validation, and orchestration to improve change velocity and reduce error rates. 

Monitoring, Telemetry, and SLOs:

• Implement and operationalize SNMP/streaming telemetry, NetFlow/IPFIX, and flow logs for health, capacity, and security visibility. 

• Define and track SLIs/SLOs (availability, latency, packet loss) and build alerts, runbooks, and dashboards for proactive incident detection. 

• Perform trend and capacity analyses; recommend scaling actions and optimization. 

Cross-Team Collaboration and Operations Excellence:

• Partner with SRE, platform, and security teams on architecture reviews, incident response, post-incident improvements, and capacity/performance planning. 

• Participate in on-call rotations, execute change windows, and contribute to root-cause analysis and problem management. 

• Document and socialize operational models, guardrails, and standards; align designs with platform roadmaps. 

Documentation, Reviews, and Standards:

• Produce high-quality design docs, diagrams, and runbooks; maintain up-to-date inventories and topology maps. 

• Conduct and participate in design and change reviews; contribute to reference architectures, patterns, and reusable modules.

• Share knowledge through peer mentoring, brown-bags, and code/document reviews to uplift team proficiency. 

Core Responsibilities

Planning & Execution:

• Independently manage work, monitoring timelines and deliverables to ensure projects or initiatives stay on track and meet requirements; proactively prioritize work and adapt to resource or timeline shifts, suggesting adjustments to maintain project efficiency. 

Collaboration & Partnership:

• Collaborate across teams to align on expectations and achieve shared objectives; build and maintain a comprehensive understanding of business, stakeholder, and/or customer needs to build and support effective partnerships; actively listen to diverse perspectives and ask questions to ensure understanding of others. 

Problem Solving:

• Independently identify and address standard and non-standard issues in accordance with standard practices, escalating more complex issues as appropriate; analyze data and/or information from multiple sources to troubleshoot standard and non-standard errors; contribute to knowledge sharing and best practices. 

Continuous Learning:

• Embrace continuous learning by actively seeking to build knowledge and new skills and/or tools, and staying current with industry trends and best practices; seek out and leverage feedback and training to improve skills; contribute to a culture of continuous learning and knowledge sharing with team members. 

Continuous Improvement:

• Develop ideas and recommend updates to increase the efficiency and effectiveness of processes, protocols, and workflows within a team; seek input from team members on alternative approaches and methods for improving work

Career Level - IC3

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