Senior Software Engineer - Frontend
About this role
Engineers who thrive on crafting high-performance web platforms and solving complex problems will find a natural home within this rapidly expanding group. Five9 operates at the intersection of cloud communications and applied artificial intelligence, developing enterprise voice bots, agent assistants, and conversation analytics platforms.
Within this team, the new hire will build software interfaces that deliver advanced artificial intelligence capabilities directly to end users. Working alongside user experience designers and product squads, the engineer will implement interface designs while gaining practical knowledge of generative models without needing prior machine learning background.
Five9 maintains a strong team-first culture centered around cloud innovation and inclusive operations. This opening suits an independent self-starter who values code ownership and wants to help organizations transition away from legacy infrastructure.
What you will do
- Translate user experience designs into functional interfaces using a React and Redux based framework through daily collaboration with designers.
- Develop custom widgets for dashboards utilizing Google Looker Studio plugins.
- Collaborate within an agile team to construct a scalable and highly available application platform on modern platform-as-a-service providers like Google Cloud Platform.
- Contribute actively to requirements analysis and backlog grooming sessions.
- Leverage platform components such as content delivery networks and noSQL databases to ensure application scalability, reliability, and operational readiness.
- Document and communicate architectural designs and implementation strategies clearly to peers.
- Maintain full operational ownership of production code, including participation in on-call rotations and troubleshooting duties.
What you need
- Bring at least 5 years of professional software development experience with a strong focus on React and Redux.
- Demonstrate high proficiency in JavaScript and TypeScript development.
- Possess practical experience with operational code ownership, covering on-call duties, troubleshooting, and maintaining uptime.
- Apply modern user interface design patterns and maintain separation of concerns within distributed systems.
- Show proven history of working effectively inside agile and scrum development teams.
- Maintain a proactive and self-motivated approach with a demonstrated sense of code ownership and clear communication skills.
Nice to have
- Experience in contact center software
- Experience with custom widget development using Google Looker Studio
Benefits
- Five9 Shares Bonus Scheme
- 10% Flexi Benefit
- Meal Allowance
- Medical Insurance
- Life Insurance
- 25 day Annual Leave + Public Holidays
Skills and tech stack
Questions candidates ask
Is this position remote?
The role is fully remote for candidates who reside outside Porto, Maia, Matosinhos, Gondomar, Valongo, and Vila Nova de Gaia. Candidates residing within those municipalities are required to work in-office 3 days a week.
Do I need prior artificial intelligence experience to apply?
Prior artificial intelligence experience is not required for this position. Selected candidates will receive on-the-job experience working with modern AI technologies.
What specific tools and frameworks will I use daily?
Daily development centers around React, Redux, JavaScript, and TypeScript within agile teams. Developers also build custom widgets using Google Looker Studio plugins and deploy onto platform-as-a-service solutions like Google Cloud Platform.
What are the operational duties for this role?
Engineers maintain full ownership of their code in production environments. This responsibility includes handling on-call rotations, troubleshooting issues, and ensuring system reliability.