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Über
Phoenix, AZ or Columbus, OH
Employment Type:
12-Month Contract-to-Hire
Overview A leading financial services organization is seeking a
Senior Network Engineer
to support enterprise-scale
application delivery, load balancing, and DDI (DNS, DHCP, IPAM)
initiatives.
This role is heavily focused on
design and architecture , with hands-on engineering across
F5, Infoblox, and cloud platforms (AWS/Azure) . You’ll play a key role in modernizing application delivery, enabling hybrid cloud strategies, and ensuring high availability and security across critical infrastructure.
Key Responsibilities
Design
high-availability, scalable, and secure
load balancing and DDI architectures
Global traffic management (GSLB)
IPAM and DHCP services
Create
high-level and low-level design documentation
aligned with enterprise standards
Evaluate and recommend
technology upgrades and architectural improvements
Load Balancing Engineering
Design and deploy solutions using:
F5 BIG-IP (LTM, DNS/GTM, ASM)
Implement:
SSL/TLS offloading and re-encryption
Traffic steering, content switching, and persistence
Advanced health monitoring and policy logic (iRules)
Support
application onboarding, migrations, and modernization efforts
Design and deploy DDI platforms using:
Infoblox (Grid, DNS, DHCP, IPAM)
F5 DNS / GTM
Cloudflare DNS & security services
Architect DNS across:
Cloud and hybrid environments
Global/external resolution services
Ensure
high availability, low latency, and secure DNS architecture
Maintain IPAM integrity and integration with automation tools
Architect and deploy solutions in
AWS and Azure
Support:
Cloud migrations and re-platforming
Multi-region failover and GSLB strategies
Ensure consistency across environments while leveraging native cloud capabilities
Deployment & Implementation
Lead
complex implementations, migrations, and upgrades
Develop:
Deployment and change plans
Rollback strategies
Validation procedures
Execute configuration, testing, and cutovers with minimal disruption
Ensure smooth transition to operations with documentation and knowledge transfer
Security, Compliance & Resilience
Design solutions aligned with
enterprise security and regulatory standards
Integrate with:
TLS and certificate management
DDoS protection
Traffic inspection and security tooling
Support audits through
technical documentation and design artifacts
Collaboration & Technical Leadership
Partner with:
Application teams
Security architecture
Network operations
Act as
technical escalation point
for complex issues
Mentor junior engineers and contribute to best practices
Documentation & Standards
Produce and maintain:
Design specifications
Engineering standards and templates
Implementation and operational documentation
Contribute to
enterprise standards for application delivery and DDI
High-level and low-level design documentation
Standardized load balancing and DDI architectures
Fully deployed and validated solutions
DNS, DHCP, and IPAM service designs
Deployment plans and operational handoff materials
Required Qualifications
7+ years of experience in
network engineering or application delivery
Strong hands-on experience with:
F5 BIG-IP (LTM, GTM/DNS)
Infoblox DDI (DNS, DHCP, IPAM)
Experience with
AWS and/or Azure networking services
Deep understanding of:
Load balancing concepts (L4/L7, GSLB)
High availability and failover design
Experience in
enterprise or highly regulated environments
(financial services preferred)
Preferred Qualifications
Experience with
Cloudflare DNS / security services
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Sprachkenntnisse
- English
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