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Senior Software Engineer

Job in San Ramon, Contra Costa County, California, 94583, USA
Listing for: Five9
Part Time position
Listed on 2026-02-24
Job specializations:
  • Software Development
    Cloud Engineer - Software, Software Engineer
Salary/Wage Range or Industry Benchmark: 90000 - 250300 USD Yearly USD 90000.00 250300.00 YEAR
Job Description & How to Apply Below

Responsibilities

  • Contribute to the next generation of Five9’s modern SaaS platform, providing businesses the ability to improve customer service through the power of AI in the Contact Center.
  • You will play a critical role in developing a highly available, highly-scalable and reliable infrastructure for microservices with a primary focus on developing Identity and Access management system capable of handling OAuth, Security tokens, Identity of Five9 customers, partners and citizen developers.
  • You will apply your expertise of cloud computing stack, broad software technologies, and open source tools to resolve what are often considered seemingly unsolvable cloud technology platform challenges for our customers.
  • Gain deep application-level knowledge of existing systems as well as contributing to their overall design.
  • Dive deep into the software stack to troubleshoot and provide production support as needed.
  • Work with a team of peers, share a passion for what they’re creating and pull your own weight.
Requirements
  • 7+ years of software engineering experience.
  • You are an expert in API/Java/Spring Security, Web-Auth, SSO, SAML, OAuth, Federation, IDP & CICP with 7+ years of related experience.
  • Experience in scaling and performance tuning of database queries and microservices.
  • Experience with distributed database systems like cockroach db, cassandra.
  • You will apply your expertise of cloud computing stack, broad software technologies, and open source tools to resolve what are often considered seemingly unsolvable cloud technology platform challenges for our customers.
  • Nice to have working experience with one of the major public cloud platforms, preferably GCP. Dive deep into the software stack to troubleshoot and provide production support as needed.
  • Work with a team of peers, share a passion for what they’re creating and pull your own weight.
  • Bachelor’s degree in computer science or equivalent professional experience.
  • Experience with Okta IAM is a plus.

Work Location:

This role is hybrid. 3 days a week (M, W, TH) in our San Ramon office is required.

As part of our continued commitment to diversity, equity, and inclusion, Five9 supports pay transparency during the entire recruitment process. Actual compensation packages are based on several factors that are unique to each candidate including, but not limited to: skill set, depth of experience, certifications, and specific work location. The range displayed reflects the minimum and maximum target for new hire salaries for the job across the United States.

Your recruiter can share more about the specific compensation package during your hiring process.

Additionally, the total compensation package for this position may also include an annual performance bonus, stock, and/or other applicable incentive compensation plans.

Our total reward package also includes:

  • Health, dental, and vision coverage, beginning on the first day of employment. Five9 covers 100% of the employee portion of the health, dental and vision coverage and shares a high portion of the dependent cost. We also offer Short & Long-Term Disability, Basic Life Insurance, and a 401k saving plan with employer matching.
  • Access to an innovative mental health support platform that offers personalized care and resources in areas such as: therapy, coaching and self-guided mindfulness exercises for all covered employees and their covered dependents.
  • Generous employee stock purchase plan.
  • Paid Time Off, Company paid holidays, paid volunteer hours and 12 weeks paid parental leave.

All compensation and benefits are subject to the requirements and restrictions set forth in the applicable plan documents and any written agreements between the parties.

The US base salary range for this role is below. $90,000—$250,300 USD

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: .

Note:

Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five
9.

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Position Requirements
10+ Years work experience
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