Full-Time
Infrastructure Engineer
Posted on 10/31/2025
Five9
1,001-5,000 employees
Cloud-based contact center software provider
No salary listed
Bengaluru, Karnataka, India
Hybrid
 DevOps & Infrastructure (2) |
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- 5+ years in managing global DNS, NTP and LDAP systems on Linux Operating Systems
- Proficiency in Infrastructure-as-Code with Ansible, Terraform, or Pulumi
- Expertise with Infoblox DDI systems (or similar enterprise DNS systems), Bind9, CloudFlare, GCP and AWS DNS
- Working experience implementing OpenLDAP & NTP services (preferably Microchip SyncServer systems)
- Strong Linux (RHEL/CentOS/Ubuntu) systems engineering background with advanced scripting in Python, Bash, or Go
- Familiar with Cisco UCS Blade Servers (or similar server Infrastructure), Block/File Storage (Software defined storage preferred)
- Fluency with Git, CI/CD pipelines, and automated test frameworks
- Familiar with various Infrastructure technology stacks like Hypervisor Technologies (KVM, Vsphere,), storage protocols (SDS) (iSCSI, NFS, CEPH), L2/L3 Networking
- Strong experience supporting mission critical 24x7 customer facing production environments
- Demonstrated success building or maintaining multi-region or high-availability OpenStack clusters
- Ability to write technical documentation and contribute to community wikis or knowledge bases
- Implement and support large scale DNS Architecture that stretches private & public cloud across multiple regions
- Implement and support Infoblox DDI solutions (DNS, IPAM, DHCP), Cloudflare DNS management, Google & AWS DNS services
- Implement and support highly reliable NTP and LDAP services on Linux instances
- Implement Infrastructure as code leveraging CI/CD automation, Ansible, Terraform/Pulumi, Python and Bash for automated provisioning of DNS services
- Be involved in Change management and Global team collaboration
- Implement continuous delivery pipelines for Infrastructure updates, including patch management, service upgrade testing, and rollback procedures
- Develop automated monitoring, alerting, and healing mechanisms using GitOps principles and observability stacks (e.g., Prometheus, Loki, Grafana)
- Harden services for high availability, disaster recovery, and scale-out operations
- Perform deep-dive troubleshooting and performance analysis of Infrastructure services across hypervisors, backend storage protocols and networking layers
- Participate in on-call rotation, incident response, and root cause analysis for platform reliability issues
- Good understanding of overall Enterprise Common Infrastructure service implementations with focus on DNS, NTP & LDAP
- Understanding of security best practices for system patching and security compliance (e.g., CIS, NIST)
- Background in telco, edge cloud, or large enterprise infrastructure environments
- Experience building and maintaining automated test environments for system upgrades and DNS migrations
- Bachelor’s degree in computer science, IT, Engineering, or a related field preferred; equivalent experience and relevant industry certifications will also be considered
Cloud-based contact center software helps businesses manage customer interactions with tools for inbound and outbound calls, including call routing, predictive dialing, IVR self-service, and analytics. The platform is accessed via a web-based suite delivered as a subscription, scalable and globally deployable with strong security. It differentiates itself with a broad feature set in the cloud, enterprise-grade security, and training via Five9 University. The goal is to help organizations improve customer service operations and efficiency by handling all interactions across channels.
Company Size
1,001-5,000
Company Stage
IPO
Headquarters
San Ramon, California
Founded
2001
Simplify's Take
What believers are saying
- Enterprise AI revenue surged 50% to $100M run rate in Q4 2025, driving double-digit growth.
- Q1 2026 revenue hit $305M, up 9%, with $200M new share buyback boosting confidence.
- Assembled partnership cuts scheduling time 65% for customers like DailyPay and MTM.
What critics are saying
- Rosen Law Firm investigates fiduciary breaches by directors, triggering lawsuits in 3-6 months.
- NICE CXone undercuts pricing, capturing 15% of Five9's US mid-market customers in 12 months.
- President Dignan's $147K share sale signals doubt amid 49% stock drop since March 2026.
What makes Five9 unique
- Five9 pioneered cloud contact centers since 2001 with predictive dialing and IVR self-service.
- Genius AI orchestrates human-AI agent workflows via Fusion ecosystem and AI Agent Connect.
- 99.999% uptime platform integrates open APIs for seamless digital engagement and analytics.
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Benefits
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
401(k) Retirement Plan
401(k) Company Match
Mental Health Support
Paid Vacation
Paid Sick Leave
Parental Leave
Employee Stock Purchase Plan
Employee Discounts
Growth & Insights and Company News
6 month growth
↑ 0%1 year growth
↓ -1%2 year growth
↑ 1%Five9, a cloud contact-centre software provider, has expanded its Fusion ecosystem with a new AI Agent Connect integration API, enabling enterprises to connect voice AI agents with third-party systems. The launch aims to orchestrate customer experience workflows across broader ecosystems, moving beyond isolated AI tools. The company reported fourth-quarter 2025 revenue of $300.3 million, up 8% year over year, with full-year revenue rising 10% to $1.149 billion. Enterprise AI revenue grew 50% year over year in the fourth quarter. Management expects double-digit revenue growth in the latter half of 2026, driven by backlog and AI adoption. Five9 provides cloud-based tools for managing customer interactions across voice, digital and workflow channels.
Five9 and Assembled expand partnership to tackle multi-agent workforce challenges. Five9 and Assembled have announced an expansion of their partnership, aimed at addressing the growing complexity of managing contact center workforces that now include a mix of human agents, AI-enabled workflows, and BPO partners. As part of the move, Assembled has been named a Five9 Select ISV Partner. Additionally, Five9 has become an authorized reseller of the Assembled workforce management (WFM) platform. The collaboration is designed to bring "agentic" workforce management capabilities directly into the Five9 Intelligent CX Platform, allowing enterprises to orchestrate their operations across multiple channels and agent types. The shift to agentic WFM. The partnership comes as contact center leaders grapple with a shifting labor landscape. While AI is increasingly handling routine customer interactions, data suggests that human headcount is not necessarily declining. According to Gartner, only 20% of customer service leaders report AI-driven headcount reduction, while 55% say staffing levels have remained flat. This creates a new challenge: planning for a workforce where human and AI agents must work in tandem. Traditional WFM tools, often built for static environments and single-channel staffing, frequently struggle to keep pace with the real-time requirements of modern, omnichannel operations. Ryan Wang, Co-founder and CEO of Assembled, said: "The contact center is moving into a multi-agent world, but most workforce management tools are still built for a much simpler one. Enterprises that can plan across human and AI capacity and manage their workforce intelligently are the ones that will actually deliver on the promise of AI. With Five9, more enterprises can now turn that complexity into a competitive edge." Reducing integration friction. A key focus of the expanded partnership is the technical depth of the integration. By embedding Assembled's WFM capabilities natively within the Five9 platform, the companies aim to eliminate the "point-solution sprawl" that often plagues enterprise tech stacks. The integration allows for real-time data flow between the two systems, facilitating more accurate forecasting and automated scheduling without the need for custom engineering. George Wilson, VP of Strategic Alliances at Five9, said: "Every conversation I'm having with customers comes back to the same thing. They want the power of AI without recreating the point-solution sprawl they just spent years cleaning up. That's why we're investing in partners like Assembled, who bring agentic workforce management into the Five9 Intelligent CX Platform, so our customers can orchestrate people, AI, and workflows." Evolving resource management. This partnership signals a broader maturation of the "AI-first" contact center. For years, the industry focused on the front-end capabilities of AI - chatbots and virtual assistants - often overlooking the back-end operational strain these tools create. Now, WFM is no longer a standalone administrative tool, but a core orchestration layer. As AI handles more volume, the remaining human interactions become more complex and critical, making precise, data-driven staffing the difference between a seamless customer experience and an operational bottleneck. Industry impact. The companies highlighted several joint customers who have already integrated the two platforms to streamline operations. DailyPay, an on-demand pay solution provider, reported a 65% reduction in scheduling time and improved SLA performance by 7% since adopting the combined solution. MTM, which manages over 2,000 agents across 100-plus skill queues for medical transportation, also reported significant efficiency gains. The partnership also simplifies the procurement process, allowing Five9 customers to purchase Assembled directly through Five9 with unified billing and streamlined contracting.
Five9 appoints Jay Lee as Chief Marketing and Growth Officer. Five9, Inc., provider of the Intelligent CX Platform, announced the appointment of Jay Lee as Chief Marketing and Growth Officer, effective April 6, 2026. This new role unites global marketing with revenue strategy and operations to create a more powerfully aligned go-to-market (GTM) engine for a more cohesive, insights-driven, and streamlined experience for customers and partners at every stage of their journey with Five9. Lee brings extensive experience driving business transformation, growth, and measurable financial outcomes across enterprise technology and payments industries. His appointment reflects Five9's continued investment in integrating marketing, operations, data, and analytics to accelerate innovation and deliver more personalized, intelligent customer experiences. "Jay's appointment comes at a defining moment for Five9 as we continue to accelerate our leadership in AI-powered customer experience," said Amit Mathradas, CEO, Five9. "His ability to connect sales and customer-facing teams with underlying data and analytics to influence how we market is exactly what companies need in this next era of CX. Jay brings a rare combination of strategic marketing vision, creativity, and operational rigor, with a deep understanding of how to translate customer insight into meaningful business outcomes. As we advance our CX vision, where human expertise and AI work seamlessly together, Jay will be instrumental in helping our customers unlock greater value from their customer experience investments." "I'm thrilled to join Five9 at such a pivotal moment," said Jay Lee, Chief Marketing and Growth Officer, Five9. "Customer experience, data, and commerce are converging faster than ever, and Five9 is uniquely positioned to lead that transformation. I look forward to working with the team to strengthen our brand further, deepen customer relationships, and drive measurable business impact through innovative, data-driven marketing and GTM strategies." Lee joins Five9 from Icertis, where he served as Chief Marketing Officer, leading a global marketing and sales development organization driving brand, demand generation, and GTM planning and execution. Prior to Icertis, he served as Chief Marketing Officer at Avalara, where he led global demand generation and communications strategies to support commercial growth across markets and customer segments. Earlier in his career, Lee held senior leadership roles across B2B and B2C organizations, including GE Capital, American Express, and PayPal. His background across consulting, finance, marketing, and enterprise technology has shaped a disciplined, data-first approach to go-to-market strategy, with deep expertise in revenue operations and execution. Lee is known for his collaborative leadership style, emphasizing idea generation, thoughtful problem-solving, and mentorship to help teams build durable, real-world skills across strategy, storytelling, and execution. He holds an MBA from Columbia University and a Bachelor of Science in Electrical Engineering from Cornell University.
Five9 President Andy Dignan sold 8,293 shares of common stock valued at approximately $147,000 in open-market transactions on 4 and 5 March, according to a SEC Form 4 filing. The sale represented 2.8% of his direct holdings, leaving him with 286,963 shares worth approximately $5.23 million. The transactions were conducted under a prearranged Rule 10b5-1 trading plan, combining mandatory tax withholding on restricted stock unit vesting and preplanned sales rather than discretionary selling. This follows a pattern of routine compensation-driven activity. Five9's share price has declined 49% over the past year. The cloud-based contact centre platform provider has a market capitalisation of $1.16 billion and generated $1.15 billion in trailing twelve-month revenue.
Five9, Inc. investor news: Rosen Law Firm announces investigation of breaches of fiduciary duties by the directors and officers of Five9, Inc. - FIVN. * Business Wire * 18 mins ago NEW YORK-(BUSINESS WIRE)-Mar 17, 2026- Rosen Law Firm, a global investor rights law firm, announces an investigation of potential breaches of fiduciary duties by the directors and officers of Five9, Inc. (NASDAQ: FIVN). Special editions.