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# software engineering specialist (voice/jain slee).

- **Company:** Randstad UK
- **Location:** Ipswich, UK
- **Salary:** £78,000.0 - £91,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Microsoft Azure, Cloud Computing, Computer Networks, DevOps, Java APIs for Integrated Networks, Java Servlet, Network Programming, Software Engineering, Systems Integration, Wireshark, Multithreading, Scripting, Google Cloud, Chatbots, Multi-Cloud
- **Published:** August 26, 2026
- **Apply:** https://www.randstad.co.uk/jobs/software-engineering-specialist-voicejain-slee_ipswich_47337739/

## About the Role

* 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.

## Description

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.


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