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Netrolynx AI

Java Developer

United Kingdom
Posted about 11 hours ago
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About The Company

Adecco is a global leader in workforce solutions, dedicated to connecting talented professionals with innovative organizations across various industries. With a rich history of excellence and a commitment to delivering tailored staffing and consulting services, Adecco helps businesses thrive by providing skilled personnel and strategic workforce management. Our extensive network and industry expertise enable us to support clients in achieving their operational and growth objectives, fostering a diverse and inclusive work environment that values innovation, integrity, and collaboration.

About The Role

We are seeking an experienced Java Developer specialized in SIP/VoIP to join our client’s dynamic team on a 6-month contract basis, inside IR35. This role is based in Ipswich with a hybrid working model, offering a unique opportunity to contribute to the development of cutting-edge voice and communications platforms within the telecommunications industry. The successful candidate will play a pivotal role in designing, developing, and supporting large-scale telecom services, leveraging cloud technologies and AI-powered voice solutions. This position offers a challenging yet rewarding environment for professionals passionate about telecommunications, cloud computing, and innovative voice technologies.

Qualifications

The ideal candidate will possess a strong background in Java development with a focus on telecom and voice applications. Relevant qualifications include a bachelor’s degree in Computer Science, Software Engineering, or a related field, along with proven industry experience. Candidates should demonstrate expertise in SIP, VoIP, RTP/RTCP, and SDP protocols, along with familiarity with frameworks such as JAIN SLEE and SIP Servlet. Experience with cloud platforms such as AWS, Azure, or GCP is essential, as is a solid understanding of troubleshooting within telecom environments. Knowledge of voice platform support tools like FreeSWITCH and Asterisk, and familiarity with AI-driven voice services, will be advantageous. Certifications in cloud technologies or telecom standards are a plus.

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

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

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

  • Developing and enhancing SIP-based voice applications using Java, ensuring high performance and scalability.
  • Working with JAIN SLEE and SIP Servlet frameworks to design and implement voice solutions.
  • Supporting and integrating voice platforms such as FreeSWITCH and Asterisk.
  • Deploying solutions across cloud environments including AWS, Azure, and GCP.
  • Integrating advanced speech recognition and synthesis services, including Speech-to-Text and Text-to-Speech, as well as AI-powered voice solutions to improve user experience.
  • Troubleshooting voice quality issues, call routing, and network performance problems to maintain service excellence.
  • Collaborating with cross-functional teams to ensure seamless deployment and operation of telecom services, adhering to security protocols and industry standards.

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Benefits

  • Competitive package, including an attractive hourly rate and potential for contract extension.
  • Opportunity to work with leading-edge telecom technologies and cloud platforms.
  • Hybrid working model providing flexibility and a healthy work-life balance.
  • Collaborative and innovative work environment that encourages professional growth and skill development.
  • Access to training resources, industry certifications, and the chance to be part of a forward-thinking team shaping the future of voice communications.

Equal Opportunity

Our client and Adecco are committed to fostering an inclusive environment where all employees and applicants are treated with respect and dignity. We are proud to be an equal opportunity employer, welcoming candidates from diverse backgrounds regardless of race, religion, gender, sexual orientation, age, disability, or any other characteristic protected by law. We believe that diversity drives innovation and excellence, and we are dedicated to creating a workplace where everyone can thrive and contribute to our collective success.

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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-powered Voice Solutions
Telecom Troubleshooting

Location

United Kingdom

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