W
Workday
Senior Software Developer (Authentication Team)
Skills
SQL QueriesKotlinDockerJavaMicroservicesPostgreSQLMySQLRedisGitBitbucketJenkinsGrafanaScalaPrometheusKubernetesWorkday
1 month ago
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Important information
Contract type:
Permanent
Location:
Ireland
Work mode:
Onsite
Published on:
23 September 2026
What they need
- At Workday, the Authentication Security team is the cornerstone of our user trust and safety
- We build and maintain the critical services that act as the front door to our entire ecosystem
- Our mission is to provide secure, scalable, and seamless access for millions of users, protecting their data while enabling a frictionless experience
- We are a team of passionate engineers dedicated to solving complex challenges in the authentication and identity space!
- Join our Authentication Security team as an experienced Software Developer to design and build highly resilient authentication systems for our platform
- We’re looking for a hands-on technical leader who loves building highly scalable, distributed security infrastructure. You will work closely with the team to architect and implement critical authentication standards (OIDC, SSO, SAML, FIDO), while ensuring our services remain resilient under heavy load
- As a technical leader you will thrive in ambiguity, turning abstract security requirements into concrete, robust solutions
- If you are a problem-solver who enjoys navigating complex security architecture, and mentoring others to do the same, this is your opportunity to shape the future of our platform
- Define the vision, strategy, and roadmap for the security platform in partnership with engineering and product leadership
- Design and build robust, high-performance services, libraries, and APIs to ensure secure and reliable authentication
- Develop tools to improve code reliability and streamline the adoption of our security services
- Leverage and champion good software design patterns and principles
- Collaborate closely with support and engineering teams to resolve customer issues, fix bugs, and implement new features
- Contribute to a collaborative team culture that fosters iteration and innovation
- Demonstrate excellence when working autonomously, with an understanding of when to seek support from team members
- Participate in on-call rotation and lead incident response for services to ensure quick service restoration during events
- Possess the ability to work effectively with both technical and non-technical stakeholders to deliver high-value results- Experience with observability and monitoring tools such as Prometheus, Grafana, or OpenTelemetry
- Knowledge/ experience with developing security, identity, authentication, authorization solutions and open standards such as SAML and OIDC
- 7+ years of experience in object oriented programming such as Java, Scala, Kotlin
- Experience with relational database technologies (e.g. PostgreSQL, MySQL, or SQL Server)
- Deep understanding of patterns for resilient services such as backpressure, idempotency, timeouts, and circuit-breaking strategies
- Expert knowledge of identity protocols and standards, including OAuth 2.0, OpenID Connect (OIDC), and SAML
- Strong understanding of IAM Concepts
- Working experience with source control and CI/CD tools such as Git, BitBucket, Jenkins
- 7+ years of software development experience, leading technical initiatives, designing complex systems, and ensuring the scalability and maintainability of software products
- Deep expertise and experience in API Development (REST) and designing and building microservices
- Knowledge of different data storage technologies, such as Redis and MySQL
- Bachelor’s degree in a computer related field or equivalent work experience
- Knowledge of Docker and container orchestration frameworks such as Kubernetes
- Proven ability in writing technical design documents and collaborating within a software development team
- Other Qualification:
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