Senior Operational Technology (OT) Architect – Technical Authority

Vattenfall; Stockholms län; On-site; SEK 600,000 - 800,000; Full time

Benefits offered by this job

Good remuneration

Flexible working arrangements

Professional development opportunities

Job summary

Vattenfall is looking for a Senior OT Architect to lead the Technical Authority for OT architecture across its renewable energy portfolio. This position involves ensuring standards, guiding engineering teams, and acting as the technical escalation point for complex SCADA and OT systems.

The ideal candidate will have extensive expertise in OT architecture and SCADA systems, focusing on driving capabilities and ensuring robust solution delivery. They will work closely with multidisciplinary teams in a dynamic, international environment.

Qualifications

• Extensive experience in OT architecture within renewable energy.
• Strong hands-on knowledge of Level 1 SCADA systems.
• Proven experience as a senior technical lead or architect.

Responsibilities

• Define and enforce the OT architecture strategy for SCADA systems.
• Act as the technical escalation point for complex integration decisions.
• Guide engineering teams to improve technical solutions.

Skills

SCADA expertise

OT architecture

Leadership

Cybersecurity knowledge

Tools

Siemens

Vestas

GE

Nordex

Job description

We are seeking a Senior 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

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

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

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 committed colleagues. We offer attractive employment conditions and opportunities for personal and professional development.

Commitment to Diversity

Vattenfall is committed to promoting a diverse and inclusive community - a place where we can all be ourselves and succeed on merit. We offer a range of family friendly, inclusive employment policies, flexible working arrangements, staff engagement forums and services to support all our employees. We are convinced that diversity contributes to build a more profitable and attractive company and we strive to be good role model regarding diversity. Vattenfall works actively for all employees to have the same opportunities and rights regardless of gender, ethnicity, age, transgender identity or expression, religion or other belief, disability or sexual orientation.