FullStack Engineer

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.

Key Responsibilities

• Develop information systems by designing, developing, and installing software solutions
• Prioritize tasks effectively, communicate clearly, and deliver within stipulated timelines.
• Apply strong analytical capabilities to implement solutions based on agreed designs.
• Stay on the leading edge of development practices.
• Be passionate about great technologies, especially open source.
• Make informed decisions quickly and take ownership of services and applications at scale.
• Work collaboratively with others to achieve goals.

Qualifications & Skills

• 5 to 6 years of experience in the full development lifecycle.
• Excellent understanding of front-end technologies such as Angular IO, JavaScript, HTML5, CSS3, Bootstrap 3.0, NGRX, and RXJS.
• Strong proficiency in C#, OOPS concepts,.NET Core, Entity Framework, and ASP.NET Core, preferably with a Linux-based development background.
• Experience working with event-driven architectures and Publisher–Subscriber patterns.
• Hands-on experience in building reusable Angular components.
• Expertise in responsive UI/UX design.
• Good understanding of user authentication and authorization across multiple systems, servers, and environments.
• Strong unit testing, debugging, and problem-solving skills.
• Proficient in version control systems such as GIT and Azure DevOps (ADO).
• Experience working in Agile/Scrum development environments.
• Cloud exposure on at least one platform — Google Cloud Platform (GCP), Microsoft Azure, or Amazon Web Services (AWS).
• Proficiency with RDBMS (SQL Server, MySQL, PostgreSQL) and NoSQL databases (MongoDB, Redis, DynamoDB).
• Knowledge or experience in the Contact Center domain is an added advantage.
• Exposure to Salesforce development will be an added advantage.

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.