Grow with us!
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 EricssonAt 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 applyClick 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
