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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 companies across various industries. With a strong presence in over 60 countries, Adecco offers a wide range of services including temporary staffing, permanent placement, outsourcing, and consulting. The company prides itself on fostering a dynamic and inclusive work environment, promoting professional growth, and delivering tailored solutions to meet the unique needs of each client. Adecco's commitment to excellence and its extensive network make it a trusted partner for both job seekers and organizations seeking top talent.

About The Role

We are seeking an experienced Java Developer specializing in SIP/VoIP technologies to join our client's dynamic team on a 6-month contract basis, inside IR35. This hybrid role based in Ipswich offers an exciting opportunity to work on cutting-edge voice and communications platforms within the telecommunications industry. The successful candidate will be instrumental in developing and enhancing large-scale telecom services, leveraging cloud technologies and AI-powered voice solutions to deliver innovative communication experiences.

The role involves working closely with cross-functional teams to design, develop, and support voice applications and platforms. You will be responsible for integrating various voice services, troubleshooting complex issues, and ensuring the seamless operation of voice communications across multiple cloud environments, including AWS, Azure, and GCP. This position offers a challenging yet rewarding environment for professionals passionate about telecommunications, cloud computing, and AI-driven voice technology.

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.

Start with a chat, not a search bar

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.

P

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

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

Qualifications

The ideal candidate will possess a strong technical background with proven experience in Java development within telecom or voice environments. A solid understanding of SIP, VoIP, RTP/RTCP, and SDP protocols is essential. Familiarity with JAIN SLEE and SIP Servlet frameworks will be highly advantageous. Candidates should have hands-on experience with voice platforms such as FreeSWITCH or Asterisk and be comfortable deploying solutions across multiple cloud platforms like AWS, Azure, or GCP.

Additionally, strong troubleshooting skills, excellent communication abilities, and a proactive approach to problem-solving are critical for success in this role. Knowledge of telecom security protocols, including TLS and SRTP, is desirable. Certifications or experience with Docker, Kubernetes, WebRTC, and advanced telecoms security protocols will be considered a plus.

Responsibilities

  • Develop and enhance SIP-based voice applications using Java, ensuring scalability, reliability, and performance.
  • Work with frameworks such as JAIN SLEE and SIP Servlet to design and implement telecommunication solutions.
  • Support and integrate voice platforms including FreeSWITCH and Asterisk, ensuring seamless operation and interoperability.
  • Deploy, configure, and maintain voice solutions across cloud environments like AWS, Azure, and GCP.
  • Integrate speech recognition, text-to-speech, and AI-driven voice services to enhance communication functionalities.
  • Troubleshoot and resolve voice quality issues, call routing problems, and network performance challenges.
  • Collaborate with cross-functional teams to gather requirements, develop technical specifications, and deliver innovative solutions.
  • Maintain documentation of system configurations, processes, and troubleshooting procedures for ongoing support and future enhancements.

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Benefits

Joining this role offers a competitive compensation package aligned with your experience and skills. You will have the opportunity to work on innovative projects at the forefront of telecommunications technology, gaining valuable experience in cloud computing, AI integration, and voice platform development. The hybrid working arrangement provides flexibility while fostering collaboration within a talented team.

Additional benefits include access to professional development resources, a supportive work environment, and the chance to contribute to transformative voice and communication solutions. The company values diversity and inclusion, promoting a culture of continuous learning and growth.

Equal Opportunity

Adecco is committed to creating a diverse environment and is proud to be an equal opportunity employer. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, disability, or any other protected status. We believe in fostering an inclusive workplace where all employees are valued and empowered to reach their full potential.

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Skills

Java
SIP
VoIP
RTP/RTCP
SDP
JAIN SLEE
SIP Servlet
FreeSWITCH
Asterisk
AWS
Azure
GCP
Docker
Kubernetes
WebRTC
TLS/SRTP

Location

United Kingdom

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