Security Architect (Ai & Cloud)

Plain Concepts; País Vasco; Hybrid; EUR 70,000 - 100,000; Full time

Benefits offered by this job

Birthday day off

Hybrid work model

Health insurance

Training budget

English lessons

Team events

Commercial discounts

Job summary

Plain Concepts is seeking a Security Architect specialized in AI & Cloud to join our Cybersecurity team in Arrasate. You will design, build, and oversee security solutions from an architectural perspective, shaping what “secure” means for new systems before production.

You will work across networks, cloud, systems, applications, and AI, collaborating with vendors and internal teams to maintain a strong security posture.

Qualifications

• Security Architecture design experience across networks, cloud and applications.
• Experience with S-SDLC, IAM/CIAM implementations and tool integration.
• Strong foundation in cryptography and authentication protocols.

Responsibilities

• Security Architecture: define reference architectures and security requirements for networks, cloud, systems, and applications, applying Security by Design and Zero Trust principles.
• AI Security: design secure patterns for copilots, RAG solutions, AI agents, and MCP servers, addressing risks such as prompt injection, data leakage, unauthorized access, and excessive agent permissions.
• Identity & Access: design and integrate IAM and CIAM solutions, including non-human identities, service accounts, and identities associated with AI agents.
• Secure Software Development Lifecycle: integrate security throughout the entire development lifecycle, adapting S-SDLC to environments where part of the code may be AI-generated or AI-assisted.
• Security Solution Selection & Implementation: identify needs, evaluate security products and tools, coordinate their implementation, and ensure a smooth handover to operations teams.
• Technical Coordination: work with external vendors and internal teams, ensuring the integration, performance, and security of solutions across the organization’s technology ecosystem.
• Cybersecurity Innovation: analyze emerging trends and propose AI-driven security initiatives that help increase the organization’s security maturity.

Skills

Security Architecture

S-SDLC

IAM / CIAM

Cloud security

Network security

Cryptography

Threat modeling

Education

University degree in Engineering or STEM

Job description

We are looking for a Security Architect specialized in AI & Cloud to join the Plain Concepts Cybersecurity team and help define how a leading financial institution will be protected. Your mission will be to design, build, and oversee security solutions from an architectural perspective, defining what “secure” means for new systems and use cases before they reach production. You will play a key role in protecting the organization’s technology infrastructure, working across networks, cloud, systems, applications, and artificial intelligence. You will take part in strategic projects, collaborate with internal teams and specialized vendors, and maintain a deep technical understanding of the solutions implemented.

What you will do:

• Security Architecture: define reference architectures and security requirements for networks, cloud, systems, and applications, applying Security by Design and Zero Trust principles.
• AI Security: design secure patterns for copilots, RAG solutions, AI agents, and MCP servers, addressing risks such as prompt injection, data leakage, unauthorized access, and excessive agent permissions.
• Identity & Access: design and integrate IAM and CIAM solutions, including non-human identities, service accounts, and identities associated with AI agents.
• Secure Software Development Lifecycle: integrate security throughout the entire development lifecycle, adapting S-SDLC to environments where part of the code may be AI-generated or AI-assisted.
• Security Solution Selection & Implementation: identify needs, evaluate security products and tools, coordinate their implementation, and ensure a smooth handover to operations teams.
• Technical Coordination: work with external vendors and internal teams, ensuring the integration, performance, and security of solutions across the organization’s technology ecosystem.
• Cybersecurity Innovation: analyze emerging trends and propose AI-driven security initiatives that help increase the organization’s security maturity.

Requirements

• At least 4 years of experience in Security Architecture, participating in the design and implementation of security solutions within complex technology environments.
• Experience with S-SDLC, IAM, and the selection, implementation, or integration of security tools.
• A strong technical foundation in network security, cloud, secure development, authentication protocols, and cryptography.
• Ability to identify and assess security risks, translate them into technical requirements, and propose appropriate mitigation measures.
• Understanding of the main risks associated with generative and agentic AI, particularly in relation to identity, data, permissions, applications, and models.
• University degree in Engineering or a STEM-related field.
• High level of Basque and English.
• Availability to work in a hybrid model, with approximately two days per week on-site in Arrasate-Mondragón.

Nice to have

• Experience in the financial sector or regulated environments, particularly with frameworks such as DORA or NIS2.
• Knowledge of the Microsoft ecosystem: Microsoft Entra ID, Defender, Purview, Sentinel, Azure AI Foundry, and Microsoft 365 Copilot.
• Experience in Generative AI security: guardrails, AI gateways, AISPM, DSPM, and securing RAG applications and AI agents.
• Knowledge of threat modeling, using methodologies or frameworks such as STRIDE or MITRE ATLAS.
• Experience with DevSecOps, Infrastructure as Code, and security control automation.
• Certifications such as CISSP, CSSLP, CCSP, CIAM, AZ-500, SC-100, ISACA AAISM, IAPP AIGP, or ISO/IEC 42001 Lead Implementer.

Benefits

• Salary determined by the market and your experience
• Flexible schedule 35 Hours / Week
• Hibrid work model
• Flexible compensation (restaurant, transport, and childcare)
• Fully free health insurance, with a co-payment for dental services
• Individual budget for training or equipment and free Microsoft certifications
• English lessons
• Birthday day off
• Monthly bonus for electricity and Internet expenses at home
• Discount on gym plan and sports activities
• Plain Camp (annual team-building event)
• Extra perks: events attendance and speakers, welcome pack, baby basket, Christmas basket, discount portal for employees

Will you let us know you better?

The selection process

Simple, just 3 steps.

• Phone screen
• 2 interviews with the team

What is Plain Concepts?

Plain Concepts is a global company of over 500 people passionate about technology and innovation. Since our founding, we have grown through technical proficiency and confidence in ideas that others might consider risky, creating custom solutions for our clients. With offices in more than 6 countries, our mission is to continue to drive cuttingedge projects around the world. We are highly committed to technical excellence. We are known for developing highly customized projects, offering specialized technical consultancy and training. Thanks to the great work of our technicians, we have been recognized for our ability to lead innovative projects that generate value, from artificial intelligence to blockchain, driving solutions that help companies optimize their performance.

What we do at Plain Concepts?

We pride ourselves on being a 100% technical team, dedicated to crafting custom projects from scratch, offering expert technical consultancy, and providing top-tier training. Our approach goes beyond traditional outsourcing; we focus on creating value together with our clients. Our teams are diverse and multidisciplinary, operating in a flat, collaborative structure. We live and breathe AGILE principles, ensuring flexibility and efficiency in everything we do. Knowledge-sharing is at our core: from supporting each other internally to contributing to the broader tech community through conferences, events, and talks. Innovation drives us — even the boldest ideas are welcome here. Transparency underpins all our relationships, fostering trust and long-term partnerships.

Want to learn more?

Check out our website! https://www.Plainconcepts.Com

At Plain Concepts, we certainly seek to provide equal opportunities. We want diverse applicants regardless of race, colour, gender, religion, national origin, citizenship, disability, age, sexual orientation, or any other characteristic protected by law.

Security Architect (Ai & Cloud) • Arrasate, Kingdom Of Spain, ES