C++ Software Engineer II - Global Voice
Five9 Inc - Porto, Portugal (Hybrid)
Posted May 7, 2026
Benefits
- Parental leave
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- Non-birth-parent leave
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- Family-building benefits
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- Fertility benefits: Not verified
- Adoption assistance: Not verified
- Surrogacy assistance: Not verified
- Mental health support
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- Relocation assistance
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- Childcare support
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- Learning budget
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- 401(k) match
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Schedule
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- Weekend work
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Application
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Where they hire
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About this role
C++ Software Engineer II - Global Voice Porto, Portugal (Hybrid) 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. Our global voice team is looking for a committed, experienced Software Engineer who is passionate about creating high performing, scalable, and resilient mission critical services that are the foundation of Five9's next generation contact center platform. You will have the opportunity to combine what you already know with new learnings, crafting a bespoke solution that serves our customers and partners. Responsibilities: - Participate in an Agile scrum team which practices DevOps. - Write clean and well-documented code and tests. - Deliver your code as part of an overall solution running in the public cloud. - Develop and enhance our Media Server to support real-time integrations with Large Language Models (LLMs) and other AI services. Required Skills: - 3+ years professional experience in software development, with some being written in C and/or C++. - Ability to methodically troubleshoot complex systems. - Excellent communication and organization skills, and a sense of ownership. Preferred Skills: - Hands-on experience writing software for real-time communications signaling and media protocols (SIP, RTP, etc.). Technical Skills: - Modern C++ (C++17+), RTP/SIP, audio
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