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Netrolynx AI

Java Developer

United Kingdom
Posted about 13 hours ago
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About The Company

Adecco is a global leader in human resource solutions, providing a wide range of staffing, consulting, and workforce management services. With a strong presence across multiple industries, Adecco is committed to connecting talented professionals with innovative organizations to foster growth and success. Known for its dedication to excellence, integrity, and sustainable employment practices, Adecco helps businesses and individuals achieve their goals through tailored solutions and expert guidance.

About The Role

We are seeking an experienced Java Developer specializing in SIP and VoIP technologies to join our client's dynamic team on a 6-month contract basis, based in Ipswich with a hybrid work model. This role offers an exciting opportunity to contribute to the development and enhancement of next-generation voice and communication platforms within the telecommunications industry. The successful candidate will be instrumental in delivering large-scale telecom services, leveraging cloud technologies, and integrating AI-powered voice solutions to improve service quality and user experience.

Qualifications

The ideal candidate will possess a strong technical background with proven experience in Java development within telecom or voice environments. Relevant qualifications include a degree in Computer Science, Telecommunications, or a related field. Candidates should demonstrate hands-on experience with SIP, VoIP, RTP/RTCP, and SDP protocols, along with familiarity with frameworks such as JAIN SLEE and SIP Servlet. Cloud platform experience across AWS, Azure, or GCP is essential, complemented by excellent troubleshooting skills. Certifications related to cloud services, telecom security, or Java development are advantageous.

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Strong

Only hits

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Responsibilities

  • Develop and enhance SIP-based voice applications utilizing Java, ensuring high performance and scalability.
  • Work with JAIN SLEE and SIP Servlet frameworks to build reliable communication services.
  • Support and integrate voice platforms including FreeSWITCH and Asterisk, ensuring seamless operation and interoperability.
  • Deploy, monitor, and support voice solutions across cloud environments such as AWS, Azure, and GCP.
  • Integrate advanced speech recognition and synthesis services, including Speech-to-Text, Text-to-Speech, and AI-driven voice functionalities.
  • Identify, troubleshoot, and resolve issues related to voice quality, call routing, and network performance to maintain optimal service delivery.
  • Collaborate with cross-functional teams to design, implement, and improve voice communication systems.
  • Stay updated with emerging telecom technologies and incorporate best practices into the development lifecycle.

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Benefits

Joining our client's team provides access to a competitive benefits package, including flexible working arrangements, opportunities for professional development, and exposure to cutting-edge telecom and cloud technologies. You will be part of a collaborative environment that values innovation and continuous learning. Additionally, the role offers the chance to work on impactful projects that shape the future of telecommunications, along with potential contract extensions and career advancement opportunities.

Equal Opportunity

Our client is committed to fostering an inclusive and diverse workplace. They are an equal opportunity employer and welcome applications from all qualified candidates regardless of race, gender, age, disability, sexual orientation, religion, or background. They believe in creating a work environment where everyone feels valued, respected, and empowered to contribute their best.

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Skills

Java
SIP
VoIP
RTP/RTCP
SDP
JAIN SLEE
SIP Servlet
AWS
Azure
GCP
FreeSWITCH
Asterisk
Speech-to-Text
Text-to-Speech
AI-driven voice functionalities
Troubleshooting

Location

United Kingdom

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