Voice Services Software Developer

About The Company Rubicon Consulting is a leading talent management consultancy dedicated to helping organizations optimize their business performance and gain a competitive edge through strategic talent acquisition and management. With a proven track record of delivering tailored recruitment solutions across various industries, Rubicon Consulting prides itself on understanding client needs and sourcing top-tier professionals to drive innovation and growth. Our commitment to excellence and our extensive network of industry specialists make us a trusted partner for organizations seeking to build high-performing teams. About The Role We are currently seeking a highly skilled Voice Services Developer to join our dynamic team on a 4+ year contract based in Suffolk. The successful candidate will play a pivotal role in designing, developing, and maintaining cutting-edge communication platforms that leverage both traditional telecommunication protocols and modern cloud-based AI technologies. This role involves building scalable SIP services, managing open-source media engines, and integrating advanced Speech AI functionalities across multi-cloud environments such as AWS, Azure, and Google Cloud Platform. The ideal candidate will possess a strong technical background in Java development, telephony protocols, and cloud operations, with a passion for innovation in voice communication solutions. Qualifications Professional experience with Java programming, including multi-threading and network programming.In-depth knowledge of Java applications utilizing JAIN SLEE framework and SIP Servlet frameworks.Hands-on experience configuring and scripting with telephony engines such as FreeSWITCH or Asterisk.Solid understanding of SIP, RTP/RTCP, and SDP protocols.Experience integrating cloud speech APIs like AWS Transcribe/Polly, Azure Speech, and Google Cloud Speech-to-Text.Proficiency with VoIP troubleshooting tools such as Wireshark or sngrep.Experience deploying and managing applications across multi-cloud environments including AWS, Azure, and GCP. Preferred qualifications include experience with Java telephony frameworks like Metaswitch Rhino SLEE or Oracle OCCAS, containerization using Docker and Kubernetes, and knowledge of WebRTC and telephony security standards such as TLS and SRTP. Responsibilities Develop, test, and maintain high-performance SIP-based voice services utilizing frameworks like JAIN SLEE and SIP Servlets.Configure, manage, and scale media servers such as FreeSWITCH or Asterisk to support voice communication needs.Implement Speech-to-Text (STT), Text-to-Speech (TTS), and Natural Language Processing (NLP) workflows to enhance live voice streams with AI capabilities.Deploy voice applications across multiple cloud platforms, including AWS, Azure, and Google Cloud, ensuring high availability and scalability.Monitor and troubleshoot voice communication systems using network analysis tools, diagnosing issues related to audio quality, call drops, and latency.Collaborate with senior architects and DevOps teams to develop and deploy scalable conversational AI bots and voice solutions.Maintain documentation of system configurations, workflows, and troubleshooting procedures to support ongoing maintenance and upgrades. Benefits Rubicon Consulting offers a competitive benefits package that includes opportunities for professional development, flexible working arrangements, and exposure to innovative voice communication projects. Our employees enjoy a collaborative work environment that fosters growth and learning. We provide comprehensive health and wellness benefits, pension schemes, and support for work-life balance. As part of our team, you will have access to cutting-edge technologies and the chance to work on transformative projects that impact the future of communication systems. Equal Opportunity Rubicon Consulting is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, religion, gender, sexual orientation, age, disability, or any other protected characteristic. Our hiring practices are designed to ensure fairness and equal opportunity for all candidates, fostering a workplace where everyone can thrive and contribute to our collective success.