https://jobs.co.uk/job/software-engineering-specialist-voicejain-slee-randstad-technologies-recruitment--cdd72eb6-a29d-49ac-a4c0-6cd3febe74a5 RSS feed for Software Engineering Specialist (Voice/JAIN SLEE) at Randstad Technologies Recruitment. en-gb Thu, 27 Aug 2026 19:07:39 GMT https://jobs.co.uk/job/software-engineering-specialist-voicejain-slee-randstad-technologies-recruitment--cdd72eb6-a29d-49ac-a4c0-6cd3febe74a5 https://jobs.co.uk/job/software-engineering-specialist-voicejain-slee-randstad-technologies-recruitment--cdd72eb6-a29d-49ac-a4c0-6cd3febe74a5 Thu, 27 Aug 2026 11:52:40 GMT Location: Ipswich | Salary: 300.00-300.00 Daily | Type: Contract | I am currently seeking a Voice Services Developer for an exciting project with an enterprise voice development team. Given your strong background in Java and telephony systems, I thought this might be a great fit.Quick Highlights:Focus: Developing, testing, and maintaining mid-to-high performance SIP-based voice services using Java (JAIN SLEE, SIP Servlets) and integrating advanced Speech AI technologies across multi-cloud environments.Environment: Agile, cross-functional delivery unit configuring media engines like FreeSWITCH or Asterisk, analyzing network traffic, and deploying conversational AI bots alongside senior architects and DevOps teams.Requirements: Professional Java experience (including multi-threading and network programming), hands-on scripting with FreeSWITCH or Asterisk, deep knowledge of voice protocols (SIP, RTP/RTCP, SDP), and experience with cloud Speech APIs (AWS, Azure, GCP) and Wireshark/sngrep.This is an urgent vacancy where the hiring manager is shortlisting for an interview immediately. If interested, please share your updated CV with me at manisha. (url removed), and let''s coordinate a brief call to discuss further.Best Regards,ManishaRandstad Technolog... Contract