Senior Software Engineer – Voice Platform

This is an exciting opportunity for an experienced Java backend engineer who enjoys building reliable, scalable cloud services and wants to broaden their experience across networking, Linux, C, and real-time communications.

Java will be the primary development language for this role, with engineers working on cloud backend services and distributed systems that support our global Voice Platform. You will also have opportunities to contribute to systems-level and network-facing components written in C, developing your knowledge of the lower levels of the voice technology stack.

You will own features end to end and help deliver highly available voice capabilities used by enterprise customers at global scale. Prior SIP/VoIP or contact-center experience is a plus, not a requirement. If you enjoy backend engineering, distributed systems, production ownership, and learning a specialized technical domain, this role is for you.

Key Responsibilities

The primary responsibilities for this role include (but are not limited to):

• Design, develop, and maintain Java-based backend services supporting real-time voice communications, with a strong focus on scalability, reliability, performance, and operational excellence.
• Build and evolve distributed cloud services running on AWS, applying strong software engineering principles to production systems operating at global scale.
• Own features and services end to end, from technical design and implementation through testing, deployment, monitoring, and ongoing production support.
• Apply networking and Linux knowledge to develop, integrate, and troubleshoot services supporting real-time communications.
• Contribute to network-facing and systems-level components written in C, working alongside experienced engineers and developing deeper systems programming knowledge.
• Learn and apply SIP/VoIP and Genesys voice-platform concepts as part of day-to-day development.
• Investigate and resolve complex production issues spanning application, networking, cloud, and systems layers.
• Collaborate with Product, Architecture, DevOps, QA, Security, and Operations to turn requirements into reliable technical solutions.
• Follow and contribute to engineering practices covering architecture, code quality, CI/CD, automated testing, observability, monitoring, and production operations.
• Participate in design reviews, code reviews, and incident response, while sharing technical knowledge across the team.
• Continuously improve the performance, reliability, scalability, and maintainability of the services you own.

Minimum Requirements

• 5+ years of professional software engineering experience.
• Strong professional experience with Java backend development.
• Experience designing, developing, and supporting backend services or distributed systems.
• Good networking fundamentals, including TCP/IP, UDP, TLS, and sockets.
• Solid Linux experience in development or production environments.
• Experience building or supporting services in cloud environments, preferably AWS.
• Experience debugging and troubleshooting complex or production systems.
• Interest in developing or expanding skills in C and systems-level programming.
• Willingness to learn SIP/VoIP and real-time communications concepts.
• Strong collaboration and communication skills.
• Ability to work independently while aligning with the team's technical direction.

Desirable Skills

• Hands-on experience with C, particularly network-facing or systems-level software.
• Spring Boot and related Java frameworks.
• Experience with Python, AWS Lambda, or web application development.
• Broader AWS experience, including ECS/EKS, API Gateway, SQS/SNS, DynamoDB/RDS, CloudWatch, IAM, and CloudFormation/CDK/Terraform.
• Experience building highly available, distributed, or real-time systems.
• Experience with SIP, VoIP, or open-source telecom platforms such as OpenSIPS, Kamailio, Asterisk, or FreeSWITCH.
• Genesys Cloud CX, contact-center, carrier, CCaaS, UCaaS, or CPaaS experience.

#LI-MC1

Working at Genesys

• AI at enterprise scale – Build, support and operate AI-powered technology used by more than 8,000 organizations worldwide. 150+ new AI features were released in the last fiscal year.
• A flexible-first culture – Join a global team of nearly 7,000 employees with flexible ways of working designed to help people do their best work.
• Growth in the AI era – Build future-ready skills through mentorship, learning programs, leadership development and education support.
• Time to recharge and give back – Benefits include paid volunteer time, August Free Fridays, well-being resources and regionally tailored programs for employees and their families.
• Recognized globally – Genesys is Great Place to Work®certified in 17 countries and 94% of employees are proud to tell others they work at Genesys.

Learn more about our culture, AI innovation and sustainability commitments through our Careers site and Sustainability Report.

What Happens After You Apply

After you apply, here's what you can typically expect:

• Our Talent Acquisition team reviews your application with the hiring team.

• A Talent Acquisition Partner will review your application and, if your background is aligned, schedule a Zoom interview.

• Next, you'll meet the hiring manager and other members of the interview team.

• We aim to keep the process focused and respectful of your time, with no more than five interviews in most cases.

• After interviews are complete, our team will follow up with the final steps.

Every application is reviewed by a person. Response times may vary by role and location, but our team will keep you informed throughout the process.

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Employee Referral

If a Genesys employee referred you, please apply using the link they shared so we can connect your application to their referral.

About Genesys:

Genesys® empowers more than 8,000 organizations worldwide to create the best customer and employee experiences. Genesys Cloud™ is the Agentic Orchestration Platform that securely connects people, systems, data and AI across the enterprise with built-in governance and control. As a result, organizations can drive customer loyalty, growth and retention while increasing operational efficiency and teamwork across human and AI workforces. To learn more, visit www.genesys.ai.

Reasonable Accommodations:

If you require a reasonable accommodation to complete any part of the application process, or are limited in your ability to access or use this online application and need an alternative method for applying, you or someone you know may contact us atreasonable.accommodations@genesys.com.

You can expect a response within 24–48 hours. To help us provide the best support, click the email link above to open a pre-filled message and complete the requested information before sending. If you have any questions, please include them in your email.

This email is intended to support job seekers requesting accommodations. Messages unrelated to accommodation—such as application follow-ups or resume submissions—may not receive a response.

Genesys is an equal opportunity employer committed to fairness in the workplace. We evaluate qualified applicants without regard to race, color, age, religion, sex, sexual orientation, gender identity or expression, marital status, domestic partner status, national origin, genetics, disability, military and veteran status, and other protected characteristics.

Please note that recruiters will never ask for sensitive personal or financial information during the application phase.