- Full Time
- India, Bengaluru
Five9 at a glance
five9.com- Founded 2001
- Ticker FIVN
- Revenue (FY2025) $1.15B
- Net income $39.42M
Investor research: Yahoo Finance · SEC filings
Five9
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.
Overview
As a Staff Engineer at Five9, you will work on core backend services that power our global cloud contact center platform. You will tackle complex engineering challenges at scale, remain deeply involved in coding, and contribute to a culture that values craftsmanship, innovation, and technical excellence—while mentoring others and shaping best practices.
What You’ll Do
- Design, develop, and optimize high-performance microservices using Java and Spring Boot
- Write clean, maintainable, and testable code with a strong focus on scalability, reliability, and performance
- Take ownership of services end-to-end — from design and implementation to deployment, monitoring, and ongoing operations
- Collaborate with architects and senior engineers on system design, technical reviews, and problem-solving
- Ensure services meet SLAs, performance metrics, and security standards
- Contribute to improving CI/CD pipelines, automation, and observability to reduce manual effort and improve service reliability
- Provide technical guidance and mentorship to mid-level and junior engineers through code reviews, pairing, and knowledge sharing
- Stay current with evolving technologies and help evaluate and adopt tools that strengthen our platform
What You Bring
- Strong debugging and problem-solving skills, with the ability to dive deep into complex production issues
- 7–10 years of development experience in Java microservices
- Deep expertise in Java, with strong experience in Spring / Spring Boot
- Proven ability to build and operate distributed, cloud-native microservices at scale
- Strong experience with GCP services (GKE, Pub/Sub, BigQuery, CockroachDB, Redis)
- Experience with Kubernetes, containerization, and CI/CD pipelines (GitLab or similar)
- Practical knowledge of SQL and NoSQL databases and caching strategies
- Solid understanding of system design, data structures, algorithms, and performance optimization
- Understanding of product architecture
- Comfortable leveraging agentic coding tools and AI-assisted development environments to enhance productivity and code quality
Nice to Have
- Experience in latency-sensitive, high-throughput systems
- Familiarity with Looker, analytics pipelines, and large-scale reporting systems
- Familiarity with Agile methodologies, JIRA, Confluence, and end-to-end testing practices
- Exposure to frontend technologies such as React and TypeScript
Technology & Tools
- Languages & Frameworks: Java, Spring, Spring Boot
- Cloud & Infrastructure: GCP (GKE, Pub/Sub, BigQuery, CockroachDB, Redis), Kubernetes
- DevOps & CI/CD: Git, GitLab CI/CD
- Collaboration & Documentation: Swagger, JIRA, Confluence
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.
To apply for this job please visit www.five9.com.
Explore Five9 online
What people say about Five9
Recent news
- Rapid7, Five9, and RingCentral Shares Skyrocket, What You Need To Know - Yahoo Finance
- Is Five9 (FIVN) Undervalued As Voice AI Agents Raise The Stakes? - simplywall.st
- Daily Inspiration: Meet Five9 Films - Voyage LA Magazine
- Did Five9, Inc. Insiders Breach their Fiduciary Duties to Shareholders? - PR Newswire
- Five9 Launches Voice AI Agents to Replace Contact Center IVR - CMSWire
Aggregated from public discussions and news; opinions are the authors’ own.
Working in India
Weather right now in India: checking… · Local time: · Air quality: · Daylight: · UV index:
India, officially the Republic of India, is a country in South Asia. It is the seventh-largest country by area, the most populous country in the world and, since its independence in 1947, the world's most populous democracy. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal and Bhutan to the north; Bangladesh and Myanmar to the east. In the Indian Ocean, India is near Sri Lanka and the Maldives. Its Andaman and Nicobar Islands share a maritime border with Myanmar, Th
🇮🇳 Relocation safety for India: High Risk — via Warnely, CC BY 4.0
National unemployment rate in India: 4.2% — via World Bank
- Elevation 954m (3,130 ft)
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