Ericsson Enterprise Wireless Solutions is establishing its first India-based modem engineering team in Bangalore, spanning modem baseband, platform, and RF software development in close collaboration with global Ericsson teams and Qualcomm partners. This founding team is shaping next-generation enterprise and industrial 5G solutions on advanced SDX-based platforms.
As a Modem RF Software Engineer, you will play a central role in delivering carrier-grade RF performance across bands and regions. This is a ground-up opportunity to influence RF architecture early, take strong technical ownership, and deliver high-performance, power-efficient 5G modem platforms deployed at global scale.
What you will do:
In this role, you will work at the intersection of RF hardware, modem firmware, and platform software, leading RF front-end integration, tuning, and validation for Qualcomm SDX-based LGA modem modules. You will be responsible for ensuring RF performance, stability, and carrier readiness across diverse deployment environments.
What You Will Do
RF Front-End Integration (40%)
• Integrate third-party RF front-end modules (Skyworks, Qorvo, Broadcom, Murata) with Qualcomm modem platforms
• Develop RF control software and drivers using RFFE, MIPI, SPI, and I2C
• Implement control and coordination for PA, LNA, RF switches, and antenna tuners
RF Tuning & Optimization (30%)
• Perform RF calibration, tuning, and characterization across multiple bands and carriers
• Optimize transmit power, receive gain, and antenna tuning algorithms
• Analyze RF KPIs including RSSI, RSRP, RSRQ, SINR, EVM, and ACLR
• Tune RF performance to meet carrier and regulatory requirements
Driver Development & Integration (20%)
• Develop and customize Linux kernel drivers for RF components
• Integrate and adapt Qualcomm AMSS/MPSS RF drivers
• Implement RF-related power management and debug HW/SW integration issues
Testing & Validation (10%)
• Develop and support automated RF test frameworks
• Perform conducted and OTA RF testing
• Support carrier certification activities (PTCRB, GCF)
The skills you bring:
• 7+ years (Senior) or 10+ years (Staff) of RF software development for cellular systems
• 5+ years working with Qualcomm modem platforms (MDM / SDX series)
• 3+ years integrating third-party RF front-end modules with cellular modems
• Strong understanding of 4G LTE and 5G NR physical-layer concepts
• Expertise in RF front-end architectures (PA, LNA, filters, switches, tuners)
• Strong C/C++ skills; Linux kernel driver development experience
• Experience with RTOS (FreeRTOS, ThreadX) and Qualcomm AMSS/MPSS architecture
• Proficiency with MIPI RFFE, SPI, I2C, and GPIO interfaces
• Hands-on experience with QXDM, QMSL, QMI, QPST, and QRCT tools
• Experience using RF test equipment (Keysight, Rohde & Schwarz, Anritsu, CMW500)
• Python or Perl scripting for automation; Git version control
Preferred Qualifications
• Experience with Qualcomm, Skyworks, Qorvo, Broadcom, or Murata RF solutions
• Knowledge of envelope tracking, APT, carrier aggregation, and MIMO
Why join Ericsson?At Ericsson, you'll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what's possible. To build solutions never seen before to some of the world's toughest problems. You'll be challenged, but you won't be alone. You'll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply? Click Here to find all you need to know about what our typical hiring process looks like.Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: India (IN) || Bangalore
Req ID: 781739
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What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day. We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale. Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient. Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical. Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term. As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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