Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide.
Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves.
We are actively looking for a Senior Software Engineer with experience working with Auth Systems, Security & Google Cloud Platform, to join our team. Five9 delivers market-leading up-time for its Contact Center application while constantly delivering new features and capabilities to highly demanding enterprise customers. This requires that Five9 continually enhances, updates and modernizes the Platform Services that the Contact Center Application runs on. This position requires excellent understanding of cloud software: how it's built, deployed, tested and managed.
Key Responsibilities- Contribute to the next generation of Five9’s modern SaaS platform enabling AI-driven customer engagement.
- Design and develop highly available, scalable, and reliable microservices infrastructure.
- Build and enhance Identity & Access Management (IAM) systems supporting OAuth, security tokens, SSO, federation, and customer/partner identities.
- Apply cloud and open-source technologies to solve complex platform challenges.
- Gain deep understanding of existing systems and contribute to architectural improvements.
- Troubleshoot production issues and provide operational support across the software stack.
- Collaborate with cross-functional engineering teams and drive technical excellence.
- Strong expertise in Java, APIs, Spring Security, and Web Authentication.
- Hands-on experience with SSO, SAML, OAuth, Federation, IDP, and CI/CD for identity platforms.
- Ownership of production uptime, reliability, SLAs/SLOs, and incident response.
- Participation in 24/7 on-call rotation for identity-related systems.
- Experience in performance tuning microservices and database queries.
- Familiarity with distributed databases such as CockroachDB or Cassandra.
- Experience with cloud platforms (GCP preferred).
- Experience with Okta IAM.
- Exposure to large-scale SaaS environments and platform modernization initiatives.
Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer.
View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal.
Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.
Skills Required
- Strong expertise in Java, APIs, Spring Security, and Web Authentication
- Hands-on experience with SSO, SAML, OAuth, Federation, IDP, and CI/CD for identity platforms
- Ownership of production uptime, reliability, SLAs/SLOs, and incident response
- Participation in 24/7 on-call rotation for identity-related systems
- Experience in performance tuning microservices and database queries
- Familiarity with distributed databases such as CockroachDB or Cassandra
- Experience with cloud platforms (GCP preferred)
Five9 Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Five9 and has not been reviewed or approved by Five9.
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Healthcare Strength — Employer-paid employee premiums, multiple plan options, and broad coverage across medical, dental, vision, disability, FSAs, and EAP are emphasized as core elements of the package. These features position healthcare as a standout component of total rewards.
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Equity Value & Accessibility — Equity grants and an ESPP are highlighted as meaningful parts of total compensation. Feedback suggests these stock components can materially enhance overall pay when company performance is favorable.
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Fair & Transparent Compensation — Public job postings include salary ranges and company materials describe formal peer benchmarking of pay. These practices indicate structure and visibility around compensation decisions.
Five9 Insights
What We Do
Five9 is an industry-leading provider of cloud contact center solutions, bringing the power of cloud innovation to more than 2,000 customers worldwide and facilitating billions of customer engagements annually. The Five9 Intelligent Cloud Contact Center provides digital engagement, analytics, workflow automation, workforce optimization, and practical AI to help customers reimagine their customer experience. Designed to be reliable, secure, compliant, and scalable, the Five9 platform helps increase agent and supervisor productivity, connects the contact center to the business, and ultimately deliver tangible business results including increased revenue and enhanced customer trust and loyalty
