Fullstack Developer

Five9; Chennai District, Bengaluru; Hybrid; INR 1,200,000 - 2,400,000; Full time

Job summary

Five9 is expanding its engineering and delivery teams in India and seeks passionate professionals to design, implement, and scale cloud-native services. You will develop information systems, own features end-to-end, and collaborate across teams to deliver high-quality software.

The role emphasizes angular and .NET tech, event-driven architectures, and cloud exposure, with a focus on scalable, secure applications and modern development practices.

Qualifications

• 3 to 8 years of experience in the full development lifecycle.
• Strong front-end understanding with Angular IO, JavaScript, HTML5, CSS3, Bootstrap 3.0, NGRX and RXJS.
• Proficiency in C#, OOP concepts, .NET Core, Entity Framework, and ASP.NET Core; Linux development background preferred.
• Experience with event-driven architectures and Publisher–Subscriber patterns.
• Hands-on experience building reusable Angular components and responsive UI/UX.
• Knowledge of authentication across systems, unit testing, debugging, and problem solving.
• Version control with Git and Azure DevOps; Agile/Scrum experience.
• Cloud exposure on GCP/Azure/AWS and databases including SQL/NoSQL.

Responsibilities

• Develop information systems by designing, developing, and installing software solutions.
• Prioritize tasks, communicate clearly, and deliver within timelines.
• Apply analytical skills to implement solutions per designs.
• Stay on the leading edge of development practices and open source.
• Own services and applications at scale and collaborate with the team.

Skills

Angular

JavaScript

HTML5

CSS3

Bootstrap

NGRX

RXJS

C#

OOP Concepts

NET Core

Entity Framework

ASP.NET Core

Linux Background

Event-driven

Pub/Sub

Angular Components

UI/UX

Auth / Authorization

Unit Testing

Git

Azure DevOps

Agile/Scrum

Cloud Platforms

SQL Server

MySQL

PostgreSQL

MongoDB

Redis

DynamoDB

Salesforce

Tools

Azure DevOps

Git

SQL Server

MySQL

PostgreSQL

MongoDB

Redis

DynamoDB

Job description

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 Five9s 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

• 3 to 8 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.

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.