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Senior Software Engineer (Kotlin/Java)

Vonage

People Ops

Full-time

Remote

Work from home - Spain

Posted on 6/16/2026

Job Description
Join Vonage and help us innovate cloud communications for businesses worldwide
Vonage Communications APIs
As an emerging leader in the $10B+ communications API market, we empower general brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. This allows them to reach and engage customers on their preferred schedule and channel — including voice, video, and messaging. Think of a rideshare service instantly connecting with customers, hospital staff conducting remote monitoring, customers verifying their identity before completing a purchase, AI virtual agents servicing customers around the clock, and much more.

Why This Role Matters




The Engineering team at Vonage is a group of talented engineers working on complex challenges associated with high-performance distributed systems and processing large volumes of data in real time.

We are looking for Software Engineers to join our dynamic development team. As a key contributor, you will play a vital role in building out our RCS channel functionality.

Your Key Responsibilities
- Build high-throughput, low-latency applications to meet communication use cases.
- Create scalable microservices that will help support our impressive growth
- Write efficient and scalable code in well-tested systems
- Collaborate with cross-functional teams to ensure seamless integration and functionality.
- Propose scalable, maintainable and cost-effective solutions
- Estimate the effort required to develop and implement new features
- Develop and execute effective testing strategies to ensure software quality and reliability

What You'll Bring
- Excellent software engineering skills in Kotlin/Java for backend serv

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