L3 Load Balancer Architect; F5); m​/w​/d

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We are seeking an experienced L3 Load Balancer Architect (F5) to provide technical leadership and architecture governance for enterprise application delivery and load balancing services. The role is responsible for designing, governing, and optimizing F5 BIG-IP environments, ensuring secure, resilient, and high-performing application delivery across critical business platforms. As a senior technical authority, you will support complex incidents, lead architectural decisions, and establish operational standards for implementation and support teams.

• Design, implement, and govern F5 BIG-IP application delivery and load balancing architectures.
• Provide expertise across LTM, ASM/APM, SSL offloading, ADC technologies, iRules, traffic management, and high-availability cluster designs .
• Define secure, scalable, and resilient application delivery patterns aligned with enterprise infrastructure standards.
• Lead architecture reviews, major changes, and complex troubleshooting activities.
• Act as the technical escalation point for critical incidents and application delivery challenges.
• Develop and maintain standards, governance frameworks, and operational procedures for F5 services.
• Ensure load balancing solutions support security, performance, availability, and compliance requirements.
• Collaborate with networking, security, cloud, and application teams to deliver integrated platform solutions.
• Produce and maintain architecture documentation, design standards, and operational guidance.

• Extensive experience designing and supporting enterprise F5 BIG-IP environments.
• Deep knowledge of LTM, ASM/APM, SSL/TLS technologies, ADC concepts, traffic policies, iRules, and high-availability architectures .
• Strong understanding of application delivery, network architectures, security controls, and performance optimization.
• Experience supporting complex incident resolution, root cause analysis, and large-scale infrastructure environments.
• Ability to translate business and application requirements into operationally sustainable technical solutions.
• Strong analytical, communication, and stakeholder management skills.

• F5 Certified Technology Specialist (F5-CTS)
• F5 BIG-IP Local Traffic Manager (BIG-IP LTM) Certification
• F5 Certified Solution Expert (F5-CSE) in Security or Cloud preferred
• Additional Security, Network, Storage, or Compute infrastructure certifications are advantageous

German language proficiency at minimum B2 level is mandatory. The role requires the ability to participate in technical discussions, incident coordination, service reviews, change management activities, and day-to-day communication with German-speaking stakeholders, customer teams, operational contacts, and site personnel.

Applicants must hold Swiss citizenship.

Winterthur area, Switzerland Candidates should be based in, or regularly available within the Winterthur region to support local operational alignment, customer interaction, coordination with onsite and remote-hands teams, and participation in governance, escalation, architecture, and service review meetings as required.

NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future.

As a Global Top Employer, we have experts in more than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.

NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us.