Senior RAN
Radio Access Network, Test Engineer
Posted on 2/23/2024

1,001-5,000 employees

AI-powered quality engineering services
Company Overview
Qualitest stands out as a global leader in AI-powered Quality Engineering, with its proprietary tool Qualisense enhancing testing efficiency and reducing time to market. The company's tailored solutions, which integrate AI, DevOps, and Automation, are designed to align with specific business goals, ensuring quality, security, and an improved digital experience for customers. Qualitest's approach to quality engineering not only accelerates delivery but also provides cost-effective results, backed by a team of experienced engineers and a proven global delivery model.
Consumer Software

Company Stage


Total Funding





, United Kingdom

Growth & Insights

6 month growth


1 year growth


2 year growth

Bristol, UK
Experience Level
Desired Skills
Development Operations (DevOps)
QA & Testing
Automation Testing
Performance Testing
Quality Assurance
Security Testing
  • 2G, 3G, 4G/LTE RAN and VoLTE testing
  • Solid working knowledge of 4G Radio Access Network technology including parameterisation and optimisation management
  • Extensive recent experience in LTE system integration, testing, and troubleshooting (system logs, OS logs, UE logs, network logs, etc.)
  • RAN Integration knowledge and experience and proven track history
  • Strong end-to-end RAN knowledge with focus on 4G RAN Technologies (vRAN, Small Cells, MIMO, Timing and Sync with GPS, PTP)
  • Understanding of Networking Protocols like IP, TCP, SCTP, IPSEC
  • Understanding of 3GPP standards, including procedures, call flows, KPI, statistics
  • End-to-end testing, in all areas - IMS calls (eNodeB, MME, SGW, PCR, SBG, CSCF, MTAS)
  • Good understanding of Layer 2 & 3 messages, RRC/RLC Layers
  • Analysing and diagnosing main RF Issues like Dropped calls, Blocked calls, Poor coverage, Handover Failures, Interference, RACH failures etc
  • Good experience in analysing the Core Network elements issues like SGSN, GGSN, MSC, Media Gateway, MME, SGW, PGW
  • Working Knowledge or Testing Nokia and Ericsson RAN
  • Extensive knowledge in testing Mission Critical Service
  • Experience with working with Loadgenerators (IXIA and Viavi)
  • Experience on RAN KPI testing
  • Direct projects in Agile, AI, Automation, DevOps and other red-hot areas!
  • Support the best-known, most influential global brands, strategizing solutions in an incredible range of technologies, across all major industries
  • Direct projects in Agile, AI, Automation, DevOps and other red hot areas
  • Strategize solutions for global brands
  • Innovate with cutting-edge Qualitest tools, such as AI-Powered Qualisense Test Predictor and Qualiview Dashboard
  • Analyse and diagnose main RF and Core Network elements issues
  • Provide end-to-end RAN knowledge with focus on 4G RAN Technologies
  • Conduct end-to-end testing in all areas including IMS calls and Layer 2 & 3 messages
  • Experience with Loadgenerators (IXIA and Viavi)
  • Expertise in RAN KPI testing