At a Glance
- Tasks: Test and validate cutting-edge 5G mobile network services and ensure top-notch performance.
- Company: Join a leading telecommunications company in the heart of Bristol.
- Benefits: Flexible working, competitive salary, and opportunities for professional growth.
- Other info: Collaborative team environment with exciting challenges and career advancement potential.
- Why this job: Be at the forefront of 5G technology and make a real impact in telecommunications.
- Qualifications: Experience in telecom testing and a solid understanding of IMS and 5G technologies.
The predicted salary is between 56250 - 68750 £ per year.
IMS / Core Test Engineer - 5GLocation: Bristol 3x a week.
About the Role Qualitest is seeking an experienced IMS / Core Test Engineer to support the validation and testing of mobile network core and IMS services for a leading telecommunications client.
The successful candidate will be responsible for ensuring the quality, performance, and reliability of voice, messaging, data, and next-generation communication services across complex telecom environments.
Working closely with network engineering, development, operations, and vendor teams, you will execute end-to-end testing activities across IMS, EPC/5GC, Vo LTE, Vo Wi Fi, and related network domains, supporting both new feature delivery and production assurance initiatives.
Key Responsibilities Design, develop, execute, and maintain test cases for IMS and Core Network platforms.
Perform end-to-end testing of Vo LTE, Vo Wi Fi, SMS, MMS, data services, and supplementary services.
Validate IMS call flows, SIP signalling, Diameter interfaces, and network interoperability.
Execute functional, integration, regression, system, and user acceptance testing activities.
Analyse network traces and logs to identify root causes of defects and performance issues.
Support testing across EPC and 5G Core network elements including MME, HSS, PCRF, AMF, SMF, UDM, and PCF.
Validate roaming, emergency calling, handover, and mobility management scenarios.
Collaborate with vendors and internal stakeholders to investigate and resolve defects.
Create detailed test reports, defect documentation, and release readiness assessments.
Support automation initiatives where applicable to improve testing efficiency and coverage.
Participate in release planning, risk assessment, and production deployment activities.
Required Skills & Experience Experience working within telecommunications testing environments.
Strong understanding of IMS architecture and protocols.
Hands-on experience testing Vo LTE, Vo Wi Fi, SIP, Diameter, RTP, and related technologies.
Knowledge of EPC and/or 5G Core network components and interfaces.
Experience using network analysis tools such as Wireshark, QXDM, or similar.
Ability to analyse signalling traces and troubleshoot end-to-end service issues.
Experience working with defect management and test management tools.
Understanding of mobile network architecture including LTE and 5G technologies.
Strong analytical, troubleshooting, and communication skills.
IMS / Core Test Engineer - 5G in London employer: Qualitest
Qualitest is an exceptional employer, offering a dynamic work environment in Bristol that fosters innovation and collaboration. With a strong focus on employee growth, we provide ample opportunities for professional development and skill enhancement in the rapidly evolving telecommunications sector. Our inclusive culture encourages teamwork and creativity, making it a rewarding place to contribute to cutting-edge 5G technology and network solutions.
StudySmarter Expert Advice🤫
We think this is how you could land IMS / Core Test Engineer - 5G in London
✨Get Chummy with Industry Events
Dive into telecommunications networking conferences and expos. These are golden opportunities to meet potential employers like Qualitest and learn about open positions directly from their teams. Keep an eye out for workshops or panels – they’re perfect for showcasing your passion and expertise!
✨Join Networking Communities
Find online forums or local meetups that focus on telecommunications and networking. Sites like LinkedIn Groups or Reddit communities can be great for connecting with professionals in the field. Just remember to participate in discussions – you never know when someone might mention job openings at places like Qualitest.
✨Showcase Your Skills with Personal Projects
If you’ve got any personal projects or contributions to open-source networking tools, flaunt them! Create a portfolio that showcases your skills relevant to what telecommunication companies are looking for. It’s a great conversation starter during interviews and networking chats.
✨Utilise Online Job Boards Wisely
While we’re all about encouraging you to apply through our website, also keep an eye on job boards specific to tech and telecommunication roles. Websites such as Telecommunication Jobs and TechCareers often list full-time roles that may not appear elsewhere. Just be sure to tailor every application to grab attention – even small tweaks can make a big difference!
We think you need these skills to ace IMS / Core Test Engineer - 5G in London
Some tips for your application 🫡
Show Off Your Technical Know-How:When you're applying for a role in telecommunications and networking, it’s crucial to highlight your technical skills. Mention specific technologies you're proficient in, like IP networking, VoIP, or security protocols. Be sure your CV includes any relevant certifications such as CCNA or CompTIA Network+; they really show you've got the chops for the job.
Tailor Your Experience to Match Networking Projects:In your CV and cover letter, don’t just list your past jobs—showcase specific projects that align with the role! If you've worked on network design, implementation, or troubleshooting, weave those experiences in and highlight metrics to demonstrate your impact. This paints a vivid picture of how you'd fit into the role at Qualitest.
Show Enthusiasm for the Industry:With telecommunications evolving rapidly, it’s important to express your passion for the field in your application. Mention any trends or innovations you've been following that excite you and how they'd influence your work. This can really set you apart and show that you're not just after a job, but a career!
Keep It Clean and Professional:While it’s important to be personable, ensure your application maintains a clean and structured format. Use clear headings and bullet points to make it easy for hiring managers to dig into your skills and experience. Remember, you’re applying for a full-time role, so a well-organised application will signal your seriousness about the position at Qualitest.
How to prepare for a job interview at Qualitest
✨Brush Up on Networking Protocols
Make sure you’re up to speed with the key networking protocols like TCP/IP, UDP, and perhaps even MPLS if it's relevant. We can expect technical questions about how these protocols function and the problems they solve, so a solid understanding will help you shine.
✨Showcase Your Projects
Got a portfolio? Bring it along! Highlight any relevant projects where you've designed or managed network systems. This is your chance to demonstrate practical experience; employers love to see how your skills can be applied in real-world scenarios.
✨Get Comfortable with Technical Scenarios
You might be faced with a case study or a technical troubleshooting scenario during the interview. Practise responding to common networking issues—like packet loss or latency problems. Thinking through these scenarios will help us sound confident and competent in our responses.
✨Emphasise Team Collaboration Skills
In the telecommunications field, teamwork is key! Make sure to share examples of how you’ve worked collaboratively, whether in past jobs or projects at uni. Employers want to see that you’re not just technically savvy, but also great at working within a team setting.
