Principal Modem Engineer

The skills you bring

• 10+ years in embedded Linux, modem, or telecom development; 5+ years in cellular modem driver development
• 3+ years each with eSIM/eUICC integration (GSMA RSP), OpenWrt or similar embedded Linux, and technical leadership
• Linux kernel modem driver development (USB, PCIe, qmi_wwan, mhi)
• OpenWrt/LEDE build system, package development, and platform customization
• eSIM/eUICC architecture and GSMA RSP specifications (SGP.02, SGP.22, SGP.32)
• Cellular modem control interfaces (QMI, RMNET, AT commands, NCM)
• Secure element communication (ISO 7816, APDU, SCP03)
• Proficiency in C/C++ for embedded Linux and real-time systems
• Network stack expertise (iptables/nftables, iproute2, netifd, routing, NAT)
• PKI infrastructure, certificate management, and secure provisioning
• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or Telecommunications (Master’s or Ph.D. preferred)
• Experience with Qualcomm SDX-series modem platforms, eUICC vendors, and CI/CD tooling (Jenkins, GitLab CI, GitHub Actions) is a plus

Why join Ericsson?

Compensation and Benefits at Ericsson

• At Ericsson, we know that our people are the key to our success. We offer a competitive package to help with your individual needs and goals.
• Seattle, NY, NJ, Santa Clara
• Your Pay The salary range for this position is dependent on various factors including, but not limited to, location, and the candidate’s combination of job-related knowledge, qualifications, skills, education, training, and experience.
• The salary range for this position is

Short-Term Variable Compensation Plan

• Your pay also includes the opportunity for an annual bonus. Actual bonus payouts are based on performance of the business against the unit’s objectives, individual performance, and the individual bonus target. Certain eligibility and pro-ration rules apply.
• Your Health Ericsson Enterprise Wireless Solutions offers excellent, competitive employee benefits, such as: subsidized, nationwide PPO medical benefit options including a low-deductible Point of Service Plan and a qualifying High Deductible Health Plan (HDHP), with a generous company-provided HSA contribution. For California employees, we offer a subsidized HMO option through Kaiser. Ericsson Enterprise Wireless Solutions also offers subsidized dental and vision coverage.
• Your Financial Security We invest in both your short and long-term financial wellbeing. Our 401(k) plan has a 4% company match and immediate vesting. Employees will also receive company-paid employee basic life and AD&D insurance and company-paid disability benefits.
• Your Time Your work-life balance is important to us. New employees are provided a minimum of 15 days of accrued vacation, up to 3 personal days per year, 11 annual holidays, 8 hours of volunteer time, and 80 hours of sick time annually. Please note paid time off is pro-rated based on the employee’s start date. Furthermore, Ericsson provides up to 16 weeks of paid maternity leave and 6 weeks of parental or adoption leave at 100% of pay.

Additional Benefits

• Ericsson Enterprise Wireless Solutions offers other company-paid benefits such as a comprehensive Employee Assistance Program, mobile therapy, and volunteer paid time off.