$257K – $327K • Offers Equity

The base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. If the role is non-exempt, overtime pay will be provided consistent with applicable laws. In addition to the salary range listed above, total compensation also includes generous equity, performance-related bonus(es) for eligible employees, and the following benefits.

• Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts

• Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)

• 401(k) retirement plan with employer match

• Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)

• Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees

• 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)

• Mental health and wellness support

• Employer-paid basic life and disability coverage

• Annual learning and development stipend to fuel your professional growth

• Daily meals in our offices, and meal delivery credits as eligible

• Relocation support for eligible employees

• Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided.

About the Team

OpenAI is building the infrastructure foundation for the next generation of AI. The Data Center Engineering team defines the strategy, reference architectures, technical requirements, and delivery standards for the large-scale data centers that support OpenAI research, products, and infrastructure partners.

About the Role

We are seeking a mid to senior OT Network Engineer with a strong controls systems background to lead the design and operation of resilient, secure, and scalable OT network architectures for high-density AI data centers. This role translates compute, power, cooling, and operational requirements into practical OT network designs, evaluates vendor solutions, and drives technical decisions across controls infrastructure, telemetry, commissioning, and operations.

Key Responsibilities

• Define controls, automation, and OT network requirements for AI data center campuses.

• Develop reference architectures, engineering standards, and reusable design templates.

• Review and develop basis-of-design and functional design documents, including OT network diagrams, IP/VLAN schemes, telemetry architectures, data flow diagrams, and commissioning requirements.

• Design OT and infrastructure network architectures, including physical topology, logical topology, IP addressing, subnetting, VLANs, routing, switching, redundancy, segmentation, firewall policy coordination, out-of-band management, monitoring, and remote access patterns.

• Develop day-two network operations requirements, including change management, configuration backups, golden configurations, monitoring thresholds, firmware lifecycle, rollback plans, and post-change validation.

• Partner with electrical, mechanical, IT/networking, security, and operations teams to ensure OT network systems align with GPU deployments, campus-wide telemetry, and failure-domain isolation requirements.

• Define integration patterns and protocol requirements across BACnet/IP, BACnet MSTP, Modbus TCP/RTU, OPC UA, IEC-61850 MMS/GOOSE, MQTT, SNMP, syslog, NTP/PTP, IRIG-B, and vendor-specific interfaces.

• Lead technical evaluation of controls integrators, network equipment suppliers, design consultants, contractors, and commissioning agents

• Review network equipment submittals, configurations, firmware assumptions, certifications, test reports, and quality documentation.

• Support factory witnessed testing (FWT), site acceptance testing, network readiness checks, failover testing, and integrated systems testing.

• Troubleshoot complex controls network issues including packet loss, latency, duplicate IPs, routing errors, firewall drops, protocol incompatibilities, time synchronization drift, and intermittent device communication failures.

Qualifications

• 8+ years of relevant experience in controls engineering, industrial automation, OT networking, mission-critical facilities, or similar critical infrastructure environments.

• Strong expertise in resilient OT network architecture, implementation, troubleshooting, and lifecycle support.

• Experience with OT/IT boundary design, secure enterprise integration, firewall policy design, redundant topologies, out-of-band management, and monitoring.

• Hands-on experience with Layer 3 OT network design, including IP addressing, subnetting, routing, VRFs, ACLs, inter-VLAN traffic control, and network segmentation.

• Hands-on experience with Layer 2 security and switching controls, including MACsec, port security, loop prevention, and switch-level access control.

• Hands-on experience in designing resilient OT network topologies using industrial redundancy protocols and architectures such as PRP, HSR, Cisco REP, RSTP/MSTP, and ring or star topologies.

• Hands-on experience in designing resilient infrastructure network architectures using HSRP/VRRP, spine-leaf topologies, redundant uplinks, and failure-domain isolation.

• Hands-on experience with industrial and infrastructure network equipment such as Cisco switches/routers, Juniper switches/routers, Palo Alto firewalls, Rockwell Automation Stratix switches, Siemens Ruggedcom or comparable industrial networking platforms.

• Experience with network management and observability platforms such as Cisco Catalyst Center (DNA Center), Palo Alto Panorama, Juniper Mist, industrial NMS tools, packet brokers, and OT monitoring platforms.

• Hands-on experience with industrial Ethernet, VPN tunneling, IPsec-based connectivity, and secure remote access.

• Hands-on experience with virtualized OT or controls server environments such as VMware vSAN, Microsoft Azure Stack HCI / Hyper-V, or comparable infrastructure platforms.

• Experience with industrial communication and OT infrastructure protocols, including BACnet/IP, BACnet MSTP, Modbus TCP/RTU, OPC UA, IEC-61850 MMS/GOOSE, MQTT, SNMP, syslog, NTP/PTP, IRIG-B, and vendor-specific interfaces, and strong understanding of their behavior across OT network architectures.

• Experience reviewing and producing technical design documentation, commissioning plans, and acceptance test procedures.

• Experience with factory witnessed testing, site acceptance testing, failover testing, telemetry validation, protocol compatibility test

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We are seeking a highly qualified and experienced OT Cyber Security Consultant to join our team. This role is aimed at professionals with a mid to senior level background and a proven track record in working with renowned consulting firms and large clients from the commercial sector. You will bring a strong passion for cyber security and actively follow current industry developments.

As an OT Cyber Security Consultant, you will be responsible for designing, implementing, and developing cyber security solutions for clients from critical infrastructure, manufacturing, energy, and industry sectors. You will work closely with the security, IT, and compliance teams of our clients, oversee the development and implementation of cyber security policies, conduct risk analyses, and ensure the adherence to global security standards and regulatory requirements.

Key responsibilities:

• Develop and implement secure architecture strategies, frameworks, and best practices for OT environments
• Conduct security assessments and risk analyses to identify vulnerabilities in ICS, SCADA, and IIoT networks
• Design, review, and optimize cyber security controls considering relevant standards (e.g. NIST, IEC 62443, ISO 27001, CIS, Zero Trust)
• Collaborate with relevant stakeholders to integrate security requirements into industrial control system architectures and OT networks
• Provide expert advice on security technologies such as firewalls, SIEM, IDS/IPS, endpoint security, and encryption tailored to OT infrastructures
• Work with engineering and operations teams to secure industrial environments against cyber threats
• Develop security policies, processes, and documentation to support security initiatives in critical infrastructure
• Lead and support incident response and threat mitigation measures, including monitoring and securing industrial networks
• Continuously monitor new threats, vulnerabilities, and trends in OT cyber security

Requirements:

• Bachelor's or Master's degree in cyber security, computer science, information technology, engineering, or a related field
• At least 5 years of experience in cyber security, risk management, or similar roles with a strong focus on OT security
• Experience in a consulting or advisory role, particularly in sectors of critical infrastructure
• In-depth knowledge of common security frameworks (NIST, IEC 62443, ISO 27001, CIS, TOGAF, etc.)
• Practical experience with security tools such as SIEM, IDS/IPS, firewalls, endpoint security, and IAM solutions for OT environments
• Knowledge of regulatory and compliance requirements (e.g. NERC CIP, DSGVO, HIPAA, PCI-DSS)
• Relevant certifications such as CISSP, CISM, CCSP, GICSP, ISA/IEC 62443, or TOGAF are an advantage
• Strong problem-solving skills and the ability to communicate complex security topics to non-technical stakeholders

Your diverse security experience should ideally include:

• Knowledge of secure remote access solutions for OT environments
• Experience with industrial control systems (ICS), SCADA, and IIoT security
• In-depth knowledge of identity and access management (IAM) and privileged access management (PAM) for OT environments

Ideal candidate profile:

• A broad business competence profile, particularly in stakeholder management, problem-solving, and resilience
• Experience in gathering, analyzing, preparing, and communicating information for various target groups
• Excellent communication skills in German (C2) and English (C2) and project-related travel readiness
• Enjoy working with clients from various industries
• Experience in balancing technical and commercial requirements to develop practical solutions
• Ability to build strong and sustainable business relationships at all levels
• Ability to provide expert support and guidance to less experienced colleagues
• Ability to explain complex cyber methods in a clear and non-technical manner (written and verbal)

As this description only provides a glimpse into the role, we encourage you to apply even if you do not meet all the mentioned requirements. We are looking for team members who want to make a difference and are willing to learn. If you feel addressed, we look forward to your application.

Benefits:

We offer a competitive salary, attractive additional benefits, and first-class training and development opportunities. New employees are also entitled to a comprehensive onboarding program and a buddy system to ensure a smooth start.

About your team:

In our Tech Transformation practice, we support CIOs in addressing central challenges such as geopolitical and macroeconomic uncertainty, cyber security, digital transformation, and budget restrictions. Our team of business analysts, enterprise architects, and cybersecurity specialists combines operational, strategic, analytical, and innovative competencies to drive business-IT alignment, IT governance transformation, IT cost optimization, efficiency improvement, innovation promotion, and cyber risk, governance, and compliance topics.

About Infosys Consulting:

Join a globally renowned management consulting firm at the forefront of technological innovation and industrial transformation. We work across industries with leading brands. Our culture is inclusive and entrepreneurial. As a mid-sized consulting firm within the global scale of Infosys, we offer our clients a comprehensive support along their entire transformation journey.

Our values IC-LIFE - Inclusion, Equity & Diversity, Client, Leadership, Integrity, Fairness, and Excellence form our common compass of values. Further information can be found on our career website.

In Europe, we are recognized by the Financial Times and Forbes as one of the leading consulting firms - particularly for customer innovation, cultural diversity, and excellent training and career paths. Infosys is one of the Top Employers in Germany 2023 and has been certified by the Top Employers Institute for outstanding working conditions in Europe for five consecutive years.

We offer a higher-than-average salary, attractive additional benefits, and first-class training and development opportunities. New employees are also entitled to a comprehensive onboarding program and a buddy system to ensure a smooth start. We are a Top Employer in Germany and have been certified by the Top Employers Institute for outstanding working conditions in Europe for five consecutive years.

We are looking for team members who want to make a difference and are willing to learn. If you feel addressed, we look forward to your application.

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