Senior Solutions architect / System designer (EST timezone) Lisboa

Senior Solutions Architect / System Designer (EST timezone)

Allied Command Transformation (ACT) is NATO’s leading agent for change: driving, facilitating, and advocating the continuous improvement of Alliance capabilities to maintain and enhance the military relevance and effectiveness of the Alliance.

We are looking for a passionate Solutions Architect who will provide architectural leadership to support ACT's modernization and digital transformation priorities. You will ensure that innovative software and hardware architectures are designed, integrated, and maintained to meet mission requirements with scalability, resilience, and
- term sustainability.

Responsibilities

• Provide architectural leadership for innovative digital products developed in national defense institutions, ensuring solutions support mission requirements.
• Oversee the design and integration of modern software and hardware architectures, ensuring scalability, resilience, and
  - term sustainability.
• Provide architectural mentorship to development teams, ensuring consistent application of design principles and practices across projects.
• Collaborate with developers, engineers, and stakeholders to identify optimal technology approaches that enable Agile and Dev
  Sec
  Ops practices.
• Develop and maintain architectural documentation, including risk assessments, trade‑off analyses, and implementation strategies.
• Evaluate emerging technologies and guide their adoption where appropriate to improve agility, resilience, and mission relevance.
• Balance technical debt, immediate mission requirements, and long‑term sustainability in architectural decision‑making.
• Advise on identity and access management (IAM) design patterns to support secure and federated user access across systems.
• Promote adoption of architectural modeling standards (UML, Archi
  Mate, BPMN) and tools (Enterprise Architect, Archi, ARIS, XMLSpy, etc. ).
• Communicate complex technical concepts to both technical and non‑technical stakeholders to enable informed decision‑making.

Qualifications

• Minimum 4 years of experience in software and/or hardware architecture, including design patterns and paradigm shifts.
• Experience leading cross‑functional teams and providing mentorship in applying architectural principles.
• Experience evaluating and integrating emerging technologies into operational systems.
• Experience in modern Identity and Access Management (IAM) solution patterns.
• Experience working in Agile Dev
  Sec
  Ops teams with CI/CD practices and relevant certifications.
• Experience developing documentation on technology solutions, including risk assessment, trade‑offs, and implementation strategies.
• Familiarity with architectural modeling standards (UML, Archi
  Mate, BPMN) and tools (Enterprise Architect, Archi, ARIS, XMLSpy, etc. ).
• Proven ability to communicate complex technical issues to both technical and non‑technical stakeholders.
• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent professional experience).
• Willingness to work in EST time zone.

Seniority Level

• Mid‑Senior level

Employment Type

• Full‑time

Job Function

• Engineering and Information Technology

Industries

• IT Services and IT Consulting