Overview
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.
The Team:
We're seeking talented Full Stack Developer to become part of our diverse, forward- thinking team. You'll work in a dynamic, global environment where innovation, collaboration, and cutting-edge technology drive real business impact. In this role, you'll help deliver Five9 global voice features. From initial concept through to delivery, you'll be involved in every step of the software development lifecycle—translating requirements into technical designs, writing clean and efficient code, and integrating with complex systems.
You'll join our team located in Porto that thrives on continuous learning, embraces new technologies, and values smart engineering. Whether deploying cloud-native solutions or
integrating secure, scalable APIs, your work will directly shape how organizations operate in the digital age.
- This position is based out of one of the offices of our affiliate Acqueon Technologies in India, and will adopt the hybrid work arrangements of that location. You will be a member of the Acqueon team with responsibilities supporting Five9 products, collaborating with global teammates based primarily in the United States.
What you'll be doing:
Designing and developing both frontend and backend components using modern
frameworksCollaborating with cross-functional teams to deliver robust, maintainable solutions
Building responsive, user-focused interfaces based on wireframes (e.g., Figma)
Writing clean, scalable code and implementing state management using tools like
ReduxIntegrating systems and services using RESTful APIs and secure authentication
methods (e.g., JWT)Participating in agile development processes, including sprint planning and code
reviewsTesting, debugging, and optimizing applications across environments
Required Skills & Experience / Qualifications:
Degree in Computer Science, Technical Science, or similar
Experience in software development projects across front-end and back-end
- 5 yrs Hands-on experience in:
- Java, JavaScript, Python, TypeScript
- React, Redux (State Management), JSX
- Spring Boot, Spring MVC, Angular, Vue.js
- Proficient in using:
- Git (GitLab), Jira, Confluence, SVN, Jenkins
- CSS, Wireframing tools (e.g., Figma)
Understanding of data structures and clean code principles
Experience in building and consuming RESTful APIs
Familiarity with modern authentication mechanisms such as JWT
Experience with unit, integration, system, and regression testing
Experience with cloud platforms: Azure, AWS, or GCP
Strong interest in continuous learning and growing technical skills
Excellent collaboration, problem-solving, and communication skills
Fluent in Finnish and English, both written and spoken
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. Our headquarters are located in the beautiful Bishop Ranch Business Park in San Ramon, CA.
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.
