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.
About Five9
Five9 is a global leader in cloud software for the enterprise contact center market, powering billions of customer interactions annually. Since 2001, Five9 has been at the forefront of the cloud revolution, helping organizations deliver exceptional customer experiences, improve productivity, and achieve measurable business outcomes.
We are expanding our engineering and delivery teams in Bangalore and are seeking passionate professionals to help design, implement, and scale Five9’s next-generation cloud-native services
Overview
We are looking for a highly skilled Full-Stack Developer with expertise in .NET Core, to develop and maintain scalable web applications and microservices. The ideal candidate will have strong problem-solving skills, experience in modern software development, and a passion for creating robust, high-performance applications.
Key Responsibilities
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Design, develop, and enhance microservices, APIs, and backend services using .NET Core
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Build intuitive, efficient, and scalable front-end interfaces using React.js, JavaScript, and TypeScript
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Optimize data access patterns and design schemas across SQL Server, Snowflake, and MongoDB
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Architect and deliver secure, high-quality, cloud-ready software aligned with performance and availability goals
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Work with CI/CD pipelines, Docker, Kubernetes, and modern DevOps practices
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Execute strong coding standards through code reviews, testing, and Agile delivery
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Collaborate closely with Product, UX, and Engineering teams to deliver customer-centric outcomes
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Take ownership of services, proactively address issues, and continuously improve system performance
Qualifications & Skills
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7+ years of full-stack development experience
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Strong experience in C#, .NET Core, RESTful API design, and microservices architecture
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Proficiency in React.js, JavaScript (ES6+), TypeScript, HTML5, and CSS
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Hands-on experience with SQL/NoSQL databases (SQL Server, Snowflake, MongoDB)
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Familiarity with cloud services such as Azure, AWS, or GCP
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Proficient with Git, CI/CD, Docker, and container orchestration (Kubernetes)
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Strong debugging, performance optimization, and problem-solving skills
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Experience working in Agile/Scrum development environments
Nice to Have
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Experience with GraphQL, gRPC, or WebSockets
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Knowledge of authentication/authorization frameworks (OAuth, JWT, Identity Server)
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Exposure to serverless architecture and cloud-native best practices
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Background in automated testing (unit, integration)
Why Five9
At Five9, we believe that technology is only as powerful as the people behind it. You’ll be part of a team that values collaboration, innovation, and accountability, and you’ll have the opportunity to make a meaningful impact on how global enterprises engage with their customers.
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.
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.