Senior Network Designer

ING

. Design secure, resilient, and scalable network, security, DNS, connectivity, and application delivery solutions across ING's hybrid infrastructure .

Posted 10/28/2026full-timeRotterdam • NetherlandsSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in designing secure, resilient, and scalable network and application delivery solutions, with a strong focus on F5 BIG-IP LTM, GTM/DNS technologies, and Palo Alto firewall configurations. Proficient in translating complex business and technical requirements into effective architectural designs while ensuring compliance with security standards and governance processes.

Highest-signal resume keywords

F5 BIG-IP LTM DesignPalo Alto Firewall SolutionsAS3-Based Onboarding ModelsNetwork Security ArchitectureDisaster Recovery Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network ArchitectureApplication Delivery DesignF5 GTM/DNS TechnologiesSSL/TLS ManagementRouting SolutionsTraffic ManagementCertificate Lifecycle ManagementVPN ConnectivityHigh Availability SolutionsAgile Methodologies

Soft Skills

Clear Communication SkillsProblem-Solving AbilitiesCollaboration in Agile Environments

Tools & Technologies

F5 BIG-IPPalo Alto NetworksInfoblox DDI/IPAMAzure DevOpsServiceNow

Certifications & Qualifications

Bachelor's Degree in Information Technology

Industry Keywords

Hybrid InfrastructureSecurity StandardsArchitecture PrinciplesOperational StabilityGovernance Processes

Tech Stack

Tools & technologies

AzureCloudDNSServiceNowSwitching

About the role

Key responsibilities & impact

Design secure, resilient, and scalable network, security, DNS, connectivity, and application delivery solutions across ING's hybrid infrastructure
Act as design authority for F5 BIG-IP LTM and GTM/DNS platforms and related application delivery services
Produce and maintain High-Level Designs, Low-Level Designs, reference architectures, service blueprints, and reusable design patterns
Design F5 LTM and GTM/DNS solutions, including load balancing, GSLB, health monitoring, traffic steering, failover, and disaster recovery architectures
Define AS3-based onboarding models, reusable declarations, and standardized service templates
Contribute to F5 certificate automation and define certificate lifecycle processes and PKI integrations
Design Palo Alto firewall solutions, rulebases, NAT configurations, security zones, segmentation, and application traffic flows
Design router ACL changes, routing, site-to-site VPNs, leased-line connectivity, partner integrations, and hybrid infrastructure connectivity
Assess impacts of network, security, DNS, routing, VPN, and application delivery changes on security, availability, and resilience
Support IPC migrations, cloud migrations, infrastructure transformations, application onboarding, and Lifecycle Management projects
Ensure alignment with ING security standards, resilience requirements, risk controls, and architecture principles
Maintain architecture repositories, design documentation, service standards, decision records, and audit-compliant evidence
Ensure traceability between design deliverables, Azure DevOps epics and user stories, architecture decisions, and ServiceNow change records
Provide architectural guidance during major incidents, troubleshooting, root cause analysis, DR testing, and service improvement activities
Participate in periodic Standby Duty to support resilience and recoverability objectives

Requirements

What you’ll need

Extensive experience designing enterprise network, security, and application delivery solutions
Strong knowledge of F5 BIG-IP LTM and GTM/DNS technologies and application delivery architectures
Experience designing F5 services, including virtual servers, pools, health monitors, traffic steering, persistence, SSL/TLS, and high-availability solutions
Experience with F5 AS3 and declarative application onboarding models
Knowledge of certificate management, PKI integration, and SSL/TLS certificate lifecycle requirements
Experience designing Palo Alto firewall rulebases, security policies, NAT configurations, security zones, and traffic flows
Experience designing routing solutions, router ACL changes, network segmentation, VPN connectivity, and leased-line services
Strong knowledge of DNS, Infoblox DDI/IPAM, traffic management, resilience, and disaster recovery principles
Experience working in complex hybrid infrastructure environments
Ability to translate business, security, and technical requirements into scalable and supportable designs
Strong focus on security, availability, resilience, and operational stability
Ability to work in accordance with ING standards, architecture principles, controls, and governance processes
Clear communication skills and experience working in an Agile environment
Bachelor's degree or equivalent professional and intellectual ability in Information Technology
Extensive experience in network architecture, network security, connectivity, and application delivery design
Strong knowledge of F5 BIG-IP LTM, F5 GTM/DNS, AS3, SSL/TLS, and application delivery technologies
Knowledge of PKI, digital certificates, certificate lifecycle management, and certificate automation principles
Strong knowledge of Palo Alto Networks, Panorama, rulebase design, NAT, and security zoning
Experience with routing and switching, router ACLs, VPN technologies, leased-line connectivity, and network segmentation
Experience with DNS, Infoblox DDI/IPAM, high availability, and disaster recovery design
Experience working within Agile delivery organisations and architecture governance processes
Excellent command of spoken and written English

Benefits

Comp & perks

25-28 vacation days depending on contract
Pension scheme
13th month salary
8% Holiday payment
Hybrid working
Personal growth and challenging work with endless possibilities
An informal working environment with innovative colleagues
Stand-by compensation for designated stand-by shifts outside regular working hours