Solutions Architect Long-Term Contract, Remote

Thessaloníki - Greece

Monthly Salary: Not Disclosed

Posted on: 15-10-2025

Vacancies: 1 Vacancy

Job Summary

Role Overview

You will define and lead the architecture of large secure systems across the full stack in the context of defense and security contracts. You will work closely with engineering security and stakeholder teams to ensure architectural integrity scalability performance and compliance with NATO / BQA standards.

Key Responsibilities

Own the end-to-end system architecture: define modules interfaces integration patterns data flow
Translate high-level requirements into architectural blueprints design patterns and implementation guidance
Ensure all designs integrate compliance security and operational requirements from the start
Lead architecture reviews vet designs and enforce consistency across subsystems
Collaborate with cross-functional teams (DevOps Security Infrastructure Development)
Provide technical leadership mentoring and decision-making in complex scenarios
Evaluate new technologies frameworks and tools to improve architecture
Document architectures decisions trade-offs and system rationales
Interface with clients auditors and stakeholders to justify architectural choices

Mandatory Requirements

Domain & High-Security Experience
- Minimum 7 years as a Solutions Architect or equivalent in security defense or highly regulated environments
- Prior experience designing systems for NATO / BQA / defense / classified / governmental domains
Architectural Competence
- Proven ability to design end-to-end systems (frontend backend infrastructure integration security)
- Experienced in microservices event-driven domain-driven design distributed systems
- Deep understanding of system decomposition modularization scaling resiliency
Security & Compliance in Architecture
- Expertise embedding security patterns: authentication authorization encryption IAM zero-trust
- Familiarity with threat models attack surfaces risk mitigation strategies
- Experience designing systems to meet compliance frameworks (ISO 27001 NIST etc.)
Technology Proficiency
- Strong experience in backend frameworks and languages (e.g. Java Go C# )
- Proficiency with front-end systems (e.g. React Angular Vue) and APIs (REST GraphQL)
- Good command of infrastructure: containers orchestration (Kubernetes) cloud platforms (AWS Azure GCP)
Integration & Interoperability
- Experience designing system integration (APIs messaging event buses ESBs)
- Data modeling schema design consistency and replication strategies
Leadership & Communication
- Ability to explain and defend architectural decisions to technical and non-technical stakeholders
- Strong written and verbal English
- Mentorship review and guiding engineering teams to follow architecture
Process & Governance
- Experience working in structured environments: change control audits documentation standards governance
- Ability to enforce architectural discipline and guardrails
Logistics & Eligibility
- Based in Europe
- Able to work under contract legally
- Willing and able to undergo background / security checks

Preferred (Not Mandatory)

Direct experience on NATO / BQA / defense architecture
Certifications like TOGAF CISSP or other architectural / security credentials
Familiarity with real-time / embedded systems or network-level architecture

What We Offer

Competitive contract compensation
Fully remote (Europe)
Long-term stable engagement
Opportunity to architect critical secure systems
Professional environment with high standards and meaningful work

Application Instructions

To be considered submit:

Your CV / resume clearly emphasizing architectural roles in security / defense / regulated environments
A cover letter showing how you meet each mandatory requirement
Descriptions or diagrams of past architectures youve designed (with rationale and constraints)
References / contacts able to validate your work in secure / regulated settings

Important: Only applications that clearly and explicitly demonstrate you meet all mandatory criteria will be reviewed. If you cannot prove alignment with each requirement please do not apply.

Role Overview You will define and lead the architecture of large secure systems across the full stack in the context of defense and security contracts. You will work closely with engineering security and stakeholder teams to ensure architectural integrity scalability performance and compliance with ...

Role Overview

Key Responsibilities

Own the end-to-end system architecture: define modules interfaces integration patterns data flow
Translate high-level requirements into architectural blueprints design patterns and implementation guidance
Ensure all designs integrate compliance security and operational requirements from the start
Lead architecture reviews vet designs and enforce consistency across subsystems
Collaborate with cross-functional teams (DevOps Security Infrastructure Development)
Provide technical leadership mentoring and decision-making in complex scenarios
Evaluate new technologies frameworks and tools to improve architecture
Document architectures decisions trade-offs and system rationales
Interface with clients auditors and stakeholders to justify architectural choices

Mandatory Requirements

Domain & High-Security Experience
- Minimum 7 years as a Solutions Architect or equivalent in security defense or highly regulated environments
- Prior experience designing systems for NATO / BQA / defense / classified / governmental domains
Architectural Competence
- Proven ability to design end-to-end systems (frontend backend infrastructure integration security)
- Experienced in microservices event-driven domain-driven design distributed systems
- Deep understanding of system decomposition modularization scaling resiliency
Security & Compliance in Architecture
- Expertise embedding security patterns: authentication authorization encryption IAM zero-trust
- Familiarity with threat models attack surfaces risk mitigation strategies
- Experience designing systems to meet compliance frameworks (ISO 27001 NIST etc.)
Technology Proficiency
- Strong experience in backend frameworks and languages (e.g. Java Go C# )
- Proficiency with front-end systems (e.g. React Angular Vue) and APIs (REST GraphQL)
- Good command of infrastructure: containers orchestration (Kubernetes) cloud platforms (AWS Azure GCP)
Integration & Interoperability
- Experience designing system integration (APIs messaging event buses ESBs)
- Data modeling schema design consistency and replication strategies
Leadership & Communication
- Ability to explain and defend architectural decisions to technical and non-technical stakeholders
- Strong written and verbal English
- Mentorship review and guiding engineering teams to follow architecture
Process & Governance
- Experience working in structured environments: change control audits documentation standards governance
- Ability to enforce architectural discipline and guardrails
Logistics & Eligibility
- Based in Europe
- Able to work under contract legally
- Willing and able to undergo background / security checks

Preferred (Not Mandatory)

Direct experience on NATO / BQA / defense architecture
Certifications like TOGAF CISSP or other architectural / security credentials
Familiarity with real-time / embedded systems or network-level architecture

What We Offer

Competitive contract compensation
Fully remote (Europe)
Long-term stable engagement
Opportunity to architect critical secure systems
Professional environment with high standards and meaningful work

Application Instructions

To be considered submit:

Your CV / resume clearly emphasizing architectural roles in security / defense / regulated environments
A cover letter showing how you meet each mandatory requirement
Descriptions or diagrams of past architectures youve designed (with rationale and constraints)
References / contacts able to validate your work in secure / regulated settings

Important: Only applications that clearly and explicitly demonstrate you meet all mandatory criteria will be reviewed. If you cannot prove alignment with each requirement please do not apply.

Key Skills

Organizational Management
Presentation Skills
Agile
SAFe
AWS
Solution Architecture
Conflict Management
Data Management
Scrum
Team Management
Pre-sales
Management Consulting

Apply Now

About Company

Kats Recruitment

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Solutions Architect Long-Term Contract, Remote

Thessaloníki - Greece

Job Summary

Key Responsibilities

Mandatory Requirements

Preferred (Not Mandatory)

What We Offer

Application Instructions

Key Responsibilities

Mandatory Requirements

Preferred (Not Mandatory)

What We Offer

Application Instructions

Key Skills

About Company

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