RAN Engineer

We are looking for Level 2 RAN Engineer for our client in Timisoara, Romania. This is a B2b contract role for initially 3 - 6 months with long term extensions. The role is onsite in Timisoara.

As an L2 RAN Engineer, you will play a critical role in ensuring the stability, optimization, and continuous improvement of one of the most advanced telecommunications networks in the world. You will be a key escalation point for complex issues, providing in-depth troubleshooting, advanced problem management, and guidance to L1 engineers. You will work closely with vendors, internal teams, and customers to ensure smooth network operations, while actively contributing to performance improvements and automation initiatives.

Experience & Skills:

• 4–6 years of experience in RAN operations, with at least 2 years at L2 level or equivalent.
• Strong understanding of mobile network architecture, including 2G/3G/4G/5G technologies.
• Hands-on experience with multi-vendor RAN systems (Nokia, Huawei, Ericsson, etc.).
• Expert in RAN technologies: GSM, UMTS, LTE, and 5G NR (gNB, eNB, RNC, DU, CU, etc.).
• Strong experience with fault, performance, and configuration management
• Proficient in handling escalations, performing RCA, and delivering optimization actions.
• Familiarity with O-RAN architecture, CU/DU splits, and SDN/NFV-based deployments.
• Strong knowledge of TCP/IP, transport, and signaling protocols.
• Experience with containerized environments (Kubernetes, Docker) and Linux OS.
• Scripting/programming knowledge (Python, Shell, or Ansible) is a strong plus.
• Strong analytical and problem-solving skills.
• Excellent communication skills to interact with customers, vendors, and internal teams.
• Ability to work independently and mentor junior team members.
• Proactive and adaptable to evolving technologies and processes.

Day to day responsibilities:

Second-line Support & Troubleshooting:

• Handle escalated incidents and problems from L1 engineers, providing advanced troubleshooting across multi-vendor RAN equipment.

• Perform root cause analysis and drive permanent solutions to recurring network issues.

• Work with vendors and engineering teams on critical fault resolution and performance issues.

Performance & Optimization:

• Analyze network KPIs and provide recommendations for performance improvements.

• Conduct proactive health checks, capacity monitoring, and optimization of RAN nodes.

• Support tuning and optimization of 2G/3G/4G/5G features and parameters.

Change & Configuration Management:

• Review and validate planned changes, ensuring minimal service impact.

• Perform and verify advanced configuration updates, software upgrades, and feature activations.

• Support automation initiatives and scripts for efficiency in operations.

Problem Management:

• Lead root cause investigations and create detailed technical reports.

• Identify trends in recurring faults and propose long-term network improvements.

• Collaboration & Knowledge Sharing:

• Provide technical guidance, mentoring, and training to L1 engineers.

• Contribute to process improvements, documentation, and knowledge base development.

• Act as a bridge between NOC operations, field teams, engineering, and vendor support.