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Open RAN Engineer

2 weeks ago

Pune, Maharashtra, India Persistent Systems Full time US$ 1,50,000 - US$ 2,00,000 per year

About Position:

We are seeking an experienced and visionary Open RAN Engineer to join our dynamic team. In this critical role, you will be instrumental in defining and driving the architectural roadmap for our Radio Access Network, ensuring it aligns with business objectives, technological advancements (e.g., 5G, Open RAN), and evolving customer needs. You will lead the design of scalable, high-performing, and cost-effective RAN solutions, collaborating closely with cross-functional teams, vendors, and industry bodies.

  • Role: Open RAN Engineer
  • Location: All Persistent Locations
  • Experience: 8+ Years
  • Job Type: Full Time Employment

What You'll Do:

  • Lead O-RAN System Development
  • Implement open interfaces (e.g., 7.2x fronthaul, E2, A1) for multi-vendor interoperability.
  • Experience in developing LTE/5G protocol layers: MAC/ SCH/ RLC / PDCP / eGTP / RRC
  • Experience in MAC-PHY integration, nFAPI / FAPI
  • Develop and optimize software for real-time and non-real-time processing in DU and CU.
  • Oversee integration of O-RAN components in virtualized (VMware, OpenStack, KVM, ESXi) and containerized (Kubernetes, RHOCP) environments.
  • Configure and optimize Container Network Interfaces (CNI) such as OVN, Calico, SR-IOV, Multus, and virtual switching (OVS-DPDK, PCI-Passthrough) for low-latency, high-throughput performance.
  • Ensure seamless E2E call flows for 4G, VoLTE, and 5G (NSA/SA) use cases.
  • Experience in LTE/5G Air interface, especially on the gNB/eNodeB stack development
  • Must have good understanding of 5G-NR 3GPP Specification
  • Good programming skills in Linux environment using C/C++ for Linux based target
  • Strong understanding of RF propagation, antenna theory, and link budget analysis.
  • Proficiency in network design tools and simulation platforms.
  • Produce and update high-level and detailed design documentation for RAN hardware, software, and features.
  • Define acceptance test and trial requirements for new products and features.
  • Develop guidelines and engineering documentation for implementation teams.
  • Drive continuous improvement in architectural processes and methodologies.
  • Knowledge of cloud-native principles and containerization (e.g., Kubernetes, Docker) as applied to RAN.
  • Understanding network slicing, edge computing, and IoT integration within RAN.
  • Strong analytical and problem-solving skills, with the ability to troubleshoot complex network issues.

Expertise You'll Bring:

  • 8+ years of progressive experience in Radio Access Network (RAN) design, planning, optimization, and deployment.
  • In-depth knowledge and hands-on experience with 4G LTE and 5G NR technologies, including core network interfaces, protocols (e.g., RRC, MAC, PDCP, RLC, SDAP) interfaces (e.g., X2, S1, F1, E1) and deployment scenarios.
  • Experience with various RAN technologies (2G, 3G, 4G, 5G) and vendors (e.g., Ericsson, Nokia, Huawei).
  • Familiarity with Open RAN (O-RAN) principles and disaggregated network architecture is highly desirable.
  • Experience in network planning, optimization, and troubleshooting tools.
  • Experience with software development (e.g., Python, Ansible, Robot framework) for RAN automation and network function virtualization (NFV) is a plus.
  • Bachelor's or Master's degree in Telecommunications, Electrical Engineering, Computer Science, or a related field.

Benefits:

  • Competitive salary and benefits package
  • Culture focused on talent development with quarterly promotion cycles and company-sponsored higher education and certifications
  • Opportunity to work with cutting-edge technologies
  • Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
  • Annual health check-ups
  • Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Inclusive Environment:

Persistent Ltd. is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

  • We offer hybrid work options and flexible working hours to accommodate various needs and preferences.
  • Our office is equipped with accessible facilities, including adjustable workstations, ergonomic chairs, and assistive technologies to support employees with physical disabilities.
  • If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment. We are committed to creating an inclusive environment where all employees can thrive.

Our company fosters a values-driven and people-centric work environment that enables our employees to:

  • Accelerate growth, both professionally and personally
  • Impact the world in powerful, positive ways, using the latest technologies
  • Enjoy collaborative innovation, with diversity and work-life wellbeing at the core
  • Unlock global opportunities to work and learn with the industry's best

Let's unleash your full potential at Persistent

"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind."