Senior CIAM Platform Engineer - Full-Stack Cloud

Acuity; Cork; On-site; EUR 90,000 - 120,000; Full time

Job summary

Acuity is building a scalable CIAM platform in Cork, Ireland. You will craft customer identity services powering authentication, authorization, onboarding, and secure access across Acuity products.

You’ll work with Platform Engineering, Security, Product, and Architecture to deliver cloud-native solutions, with emphasis on security, reliability, and cross-team collaboration. Join a strategic shared platform used across multiple business units.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related discipline.
• 5+ years of professional software engineering experience.
• Strong experience building RESTful APIs and backend services.
• Experience with frontend frameworks such as React, Next.js or Vue.js.
• Experience with relational and NoSQL databases.
• Experience with microservices and distributed architectures.
• Hands-on experience integrating with CIAM platforms (IdPs) like Microsoft Entra ID, Okta, Auth0, Ping Identity.
• Solid understanding of OAuth 2.0, OpenID Connect (OIDC), and SAML.
• Experience on Microsoft Azure, AWS, or GCP.
• Experience with Git-based development workflows.
• Experience implementing automated testing and quality engineering practices.
• Strong understanding of Agile software delivery methodologies.
• Excellent communication and collaboration skills.

Responsibilities

• Design, develop, and operate cloud-native CIAM platform components.
• Build identity experiences including registration, login, MFA, profile management, and consent.
• Develop scalable backend services, APIs, and microservices for identity workflows.
• Create responsive, accessible frontend interfaces with modern frameworks.
• Implement secure authentication/authorization across web, mobile, and API channels.
• Integrate apps with CIAM providers (IdPs) and implement SSO, passwordless, and federated identity.
• Develop identity APIs and services for secure access across products.
• Design secure RESTful and event-driven APIs; build highly available microservices.
• Contribute to DevSecOps, CI/CD pipelines, IaC, and platform automation.
• Collaborate with Product Owners, Security, Platform Engineers, and Architects.

Skills

RESTful APIs

Backend services

Microservices

Distributed architectures

OAuth 2.0

OIDC

SAML

Identity providers

Frontend frameworks

Agile methodologies

Git-based workflows

Automated testing

Communication

Education

Bachelor's degree in Computer Science or related

Tools

Microsoft Entra ID

Okta

Auth0

Ping Identity

Azure

AWS

GCP

Job description

Acuity is building a scalable CIAM platform in Cork, Ireland. You will craft customer identity services powering authentication, authorization, onboarding, and secure access across Acuity products.

You’ll work with Platform Engineering, Security, Product, and Architecture to deliver cloud-native solutions, with emphasis on security, reliability, and cross-team collaboration. Join a strategic shared platform used across multiple business units.