Information Security Architect

Company: Antaes Consulting

Role: Information Security Architect
Localisation: 100% remote
Starting date: Octobre 1st 2026
Activity rate: 50%
Programme context
Our client is replacing its legacy core platform with a multi-cloud microservices architecture across
Alibaba Cloud, Azure and AWS plus hybrid on-premise components. The consultant is embedded in the client's delivery teams, and every implementation must comply with the programme's ASPIC foundations - Architecture, Security, Privacy, Infrastructure and Cloud.
Role overview
Supports the Information Security team in defining, guiding and reviewing the security architecture of the programme, with a strong focus on microservices, identity-centric design and multi-cloud environments.
The role is advisory: it challenges designs constructively while operating without direct ownership.
Responsabilities
* Support the definition and maintenance of the programme's security architecture foundations, principles, standards and guardrails.
* Review implementations and migrations to verify alignment; provide input for architecture validation, reviews and exception handling.
* Highlight deviations and escalate non-compliance to the Information Security team.
* Be embedded in programme delivery, working closely with solution architects, DevOps teams and external vendors.
* Perform continuous security reviews of embedded projects; support security within the delivery lifecycle (SDLC / DevSecOps).
* Promote and reinforce secure-by-design and zero-trust principles across design, build and migration phases.
* Support the IAM team from an architecture and design perspective; review IAM designs for alignment with enterprise identity principles.
* Contribute to improving the consistency of IAM implementation across programme projects.
Required Expertise
* Proven experience as a Security Architect in large transformation programmes.
* Strong expertise in cloud and multi-cloud security architecture, microservices and API security, and zero trust principles.
* Solid knowledge of IAM — SSO, OIDC, SAML, RBAC and least-privilege models.
* Experience contributing to security architecture blueprints, reference patterns and compliance reviews.
* Good understanding of DevSecOps and security tooling; ability to give clear, pragmatic
* advisory recommendations.

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