Modem Firmware Engineer

Ericsson

Modem Firmware Engineer

Posted 6 Hours Ago

Be an Early Applicant

Boise ID USA

In-Office

Senior level

Cloud • Information Technology • Internet of Things • Machine Learning • Software • Cybersecurity • Infrastructure as a Service (IaaS)

We are shaping the future of digital connectivity the world relies on.

The Role

Design develop and integrate cellular modem modules into OpenWrt platforms ensuring reliability and optimal throughput across 5G cellular. Responsibilities include developing kernel drivers configuring network interfaces and maintaining modem communication functions.

Summary Generated by Built In

Join our Team
About this opportunity:

Job Location: Boise ID
Ericsson Enterprise Wireless Solutions Inc. does not sponsor U.S work authorizations for this job position including U.S. immigration filings for initial and/or change of employer paperwork for H-1's H-1B1's E-3's O-1's and TN's. Ericsson also does not hire F-1's working on CPT or EAD for this position.

Design develop and integrate cellular modem modules into OpenWrt-based platforms. Own the end-to-end modem stack development including kernel drivers user-space daemons and network configuration ensuring reliable connectivity seamless failover and optimal throughput across 5G cellular.
What you will do

Integrate 5G modem modules into OpenWrt-based router and gateway platforms
Develop and maintain kernel drivers for modem communication interfaces (USB PCIe)
Implement and optimize QMI/RMNET/AT command interfaces for modem control
Configure network interfaces routing policies and failover mechanisms
Implement connection management daemons for automatic reconnection and band selection
Integrate SMS GPS/GNSS and voice functionality where applicable
Optimize data throughput and reduce latency across modem interfaces
Perform modem firmware updates (FOTA) and version management
Debug connectivity issues across the full stack (RF baseband driver user-space)
Collaborate with hardware team on antenna design validation and RF performance
Create integration documentation and developer guides

The skills you bring
Minimum Required Skills:

5+ years experience in modem integration across multiple chipset vendors embedded Linux development
Linux kernel development (driver development device tree kernel modules)
OpenWrt/LEDE build system and package development
Cellular modem integration (QMI RMNET AT commands)
USB/PCIe modem interface drivers
C/C++ programming for embedded Linux systems
Cross-compilation toolchains and embedded build systems

Education Requirements

Required: Bachelor's degree in Electrical Engineering Computer Engineering Computer Science or related field
Preferred: Master's degree in Embedded Systems Networking or related field

Preferred Qualifications

Experience with Qualcomm SDX55/SDX62/SDX65/SDX72 based modules
Experience with Quectel or Telit Wireless modules
OpenWrt procd/ubus/UCI framework expertise
ModemManager or custom connection manager development
Multi-WAN and WAN failover implementation (mwan3)
IPv4/IPv6 dual-stack configuration over cellular
VPN integration over cellular links (WireGuard OpenVPN IPsec)
eSIM/eUICC provisioning and profile management
WWAN power management and thermal throttling
Carrier aggregation and band locking configuration
GobiNet/qmi_wwan/mhi driver development
Device tree overlay creation for modem hardware

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.
Ericsson uses a merit-based hiring approach that values people with different experiences perspectives and skillsets. We truly believe this approach drives 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.
If you need assistance or to request an accommodation due to a disability please contact Ericsson at [email protected].
DISCLAIMER: The above statements are intended to describe the general nature and level of work being performed by employees in this position. They are not an exhaustive list of all responsibilities duties and skills required for this position and you may be required to perform additional job tasks as assigned.
Primary country and city: United States (US) || Boise (ID) (Country/ City)
Job details: Developer
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.
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.
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.

Skills Required

5+ years experience in modem integration across multiple chipset vendors
embedded Linux development
Linux kernel development
OpenWrt/LEDE build system and package development
Cellular modem integration (QMI RMNET AT commands)
USB/PCIe modem interface drivers
C/C++ programming for embedded Linux systems
Cross-compilation toolchains and embedded build systems

What the Team is Saying

Ericsson Compensation & Benefits Highlights

Healthcare Strength—Comprehensive medical dental vision and mental‑health options are positioned as core benefits with multiple plan choices in key markets. Official materials explicitly emphasize healthcare breadth as part of “Life at Ericsson.”
Retirement Support—401(k) with employer matching in the U.S. pensions in some regions and broad access to an ESPP indicate strong long‑term financial support. Company filings and AGM materials describe share programs and post‑employment benefits as ongoing pillars of the package.
Leave & Time Off Breadth—Paid time off sick leave holidays and paid volunteer time are highlighted alongside generous parental leave in various locations. Time‑off entitlements are presented as a strong component of the total rewards offering.

Learn more about Ericsson's Compensation & Benefits →

Ericsson Insights

What's It Like to Work at Ericsson? Ericsson Culture & Values Ericsson Career Growth & Development What's the Work-Life Balance Like at Ericsson? Ericsson Leadership & Management Ericsson Company Growth Stability & Outlook

View all jobs at Ericsson

View Ericsson Profile

Report Job

Am I A Good Fit?

beta

Get Personalized Job Insights.

Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company

HQ: Stockholm

88000 Employees

Year Founded: 1876

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 36000 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 28000 employees in research and development backed by one of the strongest intellectual property portfolios in the industry with 60000+ 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.

Gallery

Ericsson Offices

Learn More

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

Ericsson adopts a hybrid work model globally because we know balance matters. Sometimes things are better in real life. Other times we can be more productive at home. Our hybrid approach gives you the best of both worlds.

Typical time on-site: Flexible