Senior Operational Technology (OT) Architect – Technical Authority

Company Description

Vattenfall is a European energy company with approximately 21000 employees. For more than 100 years we have electrified industries, supplied energy to people’s homes and modernized our way of living through innovation and cooperation. We now want to make fossil-free living possible within one generation. To be able to reach this ambitious goal we are looking for talented individuals who, in addition to their passion for their own role, also have strong team spirit and want to contribute to supporting a meaningful corporate mission. 

Job Description

We are seeking a Senior Operational Technology (OT) Architect – Technical Authority to define, govern, and evolve the OT architecture across our renewable energy portfolio.
A Technical Authority is expected to:

• Own architecture and standards across the domain
• Act as escalation point for complex system decisions
• Drive roadmap alignment and governance
• Ensure competence development and consistency across teams

This is not only a design role. You will act as a technical authority for SCADA and OT systems, setting standards, guiding engineering teams, and ensuring consistent, high-quality solutions across projects and assets.

You will play a central role in building and developing technical competencies within Operational Technology in BA Wind, ensuring that our solutions are robust, secure, and scalable while enabling operational excellence.

Your Responsibilities

As a Senior OT Architect / Technical Authority, you will:

Architecture & Governance

• Define, maintain, and enforce the OT architecture strategy for SCADA and automation systems
• Establish and govern reference architectures, standards, and design principles across all assets
• Act as the technical escalation point for complex system and integration decisions
• Ensure alignment of architectures across projects, assets, and business units

Technical Authority & Capability Building

• Act as Technical Authority for SCADA and OT systems, ensuring consistency and quality of engineering deliverables
• Guide, coach, and challenge engineering teams to improve technical solutions and design decisions
• Drive competence development within OT engineering teams (methods, tools, best practices)
• Translate complex technical topics into clear guidance for both engineers and stakeholders

Engineering & Delivery Support

• Lead the design and integration of Level 1 SCADA systems from major OEMs (Siemens, Vestas, GE, Nordex)
• Support project teams with solution design, trade-offs, and technical decision-making
• Drive standardization and interoperability across multi-vendor SCADA platforms
• Provide technical leadership in vendor selection, system upgrades, and lifecycle management

Technology Leadership

• Own and maintain the OT technology and architecture roadmap
• Ensure cybersecurity-by-design and compliance with regulatory standards
• Support digitalisation initiatives, including OT/IT integration and data enablement
• Identify and drive adoption of emerging technologies and automation trends

Qualifications

Experience & Expertise

• Have extensive experience in OT architecture within renewable energy, with deep SCADA expertise
• Bring proven experience acting as a senior technical lead, architect, or authority across multiple systems or projects
• Have strong hands-on knowledge of Level 1 SCADA systems (Siemens, Vestas, GE, Nordex)
• Understand industrial communication protocols (IEC 61850, OPC UA, Modbus) and OT cybersecurity

Leadership & Impact

• Demonstrate the ability to guide, influence, and challenge engineering teams without direct line authority
• Are able to translate complex technical concepts into clear and actionable guidance
• Have experience driving standardisation, governance, and cross-team alignment

Architecture & Systems Thinking

• Strong knowledge of architecture frameworks (ISA‑95, IEC 62443)
• Proven track record of designing scalable, secure, and resilient OT solutions
• Experience working across multiple projects, ensuring consistency and reuse

Nice to Have

• Experience integrating OT with cloud and data platforms
• Knowledge of asset management systems and digital twin approaches
• Experience working in a Technical Authority / domain lead setup

Additional Information

Our offer 
Good remuneration, a challenging and international work environment, and the possibility to work with some of the best in the field. You will be working in interdisciplinary teams and you can always count on support from comm