Job Title: Systems Engineer - Authentication Controls (Day Rate Contract)
Location: Dublin
Contract Type: Day Rate Contract (12-18 months)
VISA Sponsorship: Not Available
About the Role
Our client, a leading Financial Services provider, is experiencing significant growth and is seeking an experienced Senior Systems Engineer to join their Authentication Controls team. This is a hands-on contract role within an Enterprise Cybersecurity function, focused on delivering secure and scalable authentication solutions across a large and diverse application landscape.
As a Senior Systems Engineer, you will play a key role in integrating, supporting, and modernising Single Sign-On (SSO) and Multi-Factor Authentication (MFA) capabilities, ensuring seamless and secure access for users across the business.
Key Responsibilities
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Integrate and support SSO for enterprise applications using PingFederate and Microsoft Entra ID, applying protocols such as SAML, OpenID Connect, and OAuth.
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Collaborate with application owners (15+ applications) to assess existing authentication setups, define migration plans, and enhance security and user experience.
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Implement and troubleshoot authentication flows, including client credentials, authorisation code, and token-based access for APIs.
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Advise on modern access control strategies, including MFA injection, token lifecycle management, and serverless authentication scenarios.
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Conduct security testing, validate integration flows, and ensure compliance with internal standards.
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Deliver repeatable, scalable authentication solutions while supporting application owners and resolving issues promptly.
Key Skills & Experience
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PingFederate & PingAccess expertise, including adaptor configuration, token management, and credential reviews.
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Strong knowledge of SAML, OpenID Connect, OAuth, REST, and SOAP for identity federation and API access.
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Practical experience with MFA integration in authentication flows.
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Experience with Microsoft Entra ID (Azure AD), Active Directory, and cloud environments such as Azure and AWS.
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Solid grounding in Windows/Linux systems, networking (TCP/IP), and infrastructure.
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Familiarity with Python, Java, Git, CI/CD pipelines, and Agile delivery.
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Exposure to security testing frameworks and tools.
Additional Requirements
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Full-stack development experience (front end and back end).
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Proficiency in one or more programming languages: Python, C++, Java/J2EE.
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Cybersecurity certification such as CISSP is desirable.
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Hands-on experience with Version Control (Git) and CI/CD pipelines.
