Sr. Software Engineer - Networking & RTOS
Lynx · United States
- Hybrid
- Full-time
- $160,000 / year
- United States
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Job highlights
- Design, implement, test network software in LynxOS-178.
- Focus on system security, performance, and interoperability.
- Develop embedded systems ensuring real-time reliability.
- Troubleshoot complex low-level network and software issues.
- Collaborate with cross-functional teams on integration.
About the role
Senior Software Engineer - Networking RTOS
Lynx delivers modular, open standards-based software that transforms how high-assurance, mission-critical edge systems are built, deployed, and maintained. Our secure edge computing solutions enable innovation and operational excellence in the world’s most demanding environments, from aerospace and defense to commercial and industrial systems. We partner across industries including automotive, medical, and critical infrastructure to deliver tailored solutions aligned with each customer’s mission and operational requirements.
Key Products and Services:
- MOSA.ic: A modular software framework and architecture for mission-critical edge computing, based on MOSA.
- MOSA.ic.AI: A unified CPU and GPU software platform for deterministic, certifiable deployment of AI and advanced workloads in mission-critical edge systems.
- CoreSuite 2.0: A safety-critical GPU framework for graphics enablement designed for mission-critical edge computing systems.
- Services: Professional services for designing, integrating, certifying, deploying, and maintaining safety- and security-critical systems.
The Role:
As a Senior Software Engineer specializing in Networking and RTOS, you will be part of a team responsible for the design, implementation, testing, and documentation of network software within our LynxOS-178 RTOS. Your focus will be on enhancing system security, performance, and interoperability.
Key Responsibilities:
- Architect, design, and implement network protocols and services (e.g., IPv4/IPv6, UDP/TCP, IPsec, TSN) in an embedded environment.
- Develop and maintain software for embedded systems, ensuring real-time performance and reliability.
- Conduct thorough network performance analysis and optimization.
- Collaborate with cross-functional teams to ensure seamless integration with network protocols and application stacks.
- Troubleshoot and resolve low-level network and software issues, distinguishing hardware from software challenges.
- Enhance the efficiency, scalability, and stability of networking solutions through innovative development and optimization.
- Develop application-level BSD/POSIX sockets programming solutions for real-time operating systems and hypervisors.
- Work on a variety of other RTOS and tools related technologies.
- Support the generation and review of certification data.
- Perform additional job duties as assigned.
Requirements:
- Must be a US Citizen.
Education & Experience:
- BS/MS in Computer Science/Electrical Engineering.
- 8+ years of relevant experience required.
Proficiency In The Following:
- C Programming and BSD/POSIX sockets programming.
- Experience with networking protocols such as: TCP, UDP, IPv6, IPv4, IPSec and TSN.
- Experience on at least one RTOS (e.g., LynxOS-178, VxWorks, QNX, FreeRTOS) or Linux kernel space development.
- Experience with performance analysis (perf, ftrace) and packet capture (tcpdump/Wireshark) tools.
- Proven ability to troubleshoot and resolve complex software and networking challenges.
- Strong communication skills and a demonstrated ability to manage multiple projects simultaneously.
- Experience with Agile methodologies and tools such as Jira, Confluence, Git and Gerrit.
- Solid understanding of CI/CD workflows and tools (e.g., Jenkins, Azure DevOps).
- Scripting and automation skills using Python, Bash, or similar languages.
Nice To Have:
- Experience developing Linux device drivers and bootloaders.
- Assembly code programming (x86 or ARM).
- Rust programming language experience.
- Familiarity with DO-178C lifecycle development standards.
- Contributions to open-source communities.
- Hands-on experience with root cause analysis and kernel-level troubleshooting.
- Familiarity with real-time operating systems, hypervisors, and virtualization technologies (e.g., VMware, KVM, Xen, QEMU).
- Familiarity with concurrency on multicore SMP/AMP.
Benefits:
- Low-cost Medical / Dental / Vision coverage options
- 401K with generous employer match
- Responsible Paid Time Off + 11 Paid Holidays
- Remote work opportunities based on role
- Employee Assistance Program (EAP)
- Career growth and professional development opportunities
Lynx is an equal opportunity employer.
Key skills/competency
- Networking Protocols
- RTOS Development
- C Programming
- Embedded Systems
- System Security
- Performance Analysis
- Software Design
- Troubleshooting
- Agile Methodologies
- CI/CD
Skills & topics
- Software Engineer
- Networking
- RTOS
- Embedded Systems
- C Programming
- TCP/IP
- IPsec
- TSN
- Linux Kernel
- Agile
How to get hired
- Tailor your resume: Highlight C programming, RTOS, and networking protocols experience for the Senior Software Engineer role.
- Showcase embedded systems expertise: Detail your experience with performance analysis and troubleshooting complex issues.
- Emphasize security and performance: Quantify achievements in enhancing system security and optimizing network performance.
- Demonstrate collaboration: Provide examples of working with cross-functional teams and using Agile methodologies.
- Prepare for technical interviews: Be ready to discuss networking concepts, RTOS specifics, and problem-solving scenarios.
Technical preparation
Master C programming and BSD/POSIX sockets.,Deep dive into networking protocols: TCP, UDP, IPv6, IPv4, IPSec, TSN.,Familiarize with RTOS concepts (LynxOS-178, VxWorks, QNX, FreeRTOS).,Practice performance analysis and packet capture tools.
Behavioral questions
Describe a complex networking challenge you solved.,How do you ensure security and performance in embedded systems?,Share an example of successful cross-functional collaboration.,How do you manage multiple projects and priorities?
Frequently asked questions
- What are the key networking protocols I'll work with as a Senior Software Engineer at Lynx?
- As a Senior Software Engineer at Lynx, you will primarily work with networking protocols such as IPv4/IPv6, UDP/TCP, IPsec, and TSN (Time-Sensitive Networking) in an embedded environment using LynxOS-178 RTOS.
- What is LynxOS-178 RTOS and what is my role within it?
- LynxOS-178 RTOS is Lynx's real-time operating system designed for safety-critical applications. Your role as a Senior Software Engineer will involve designing, implementing, testing, and documenting network software specifically for this RTOS, focusing on security, performance, and interoperability.
- What level of experience is required for the Senior Software Engineer position?
- Lynx requires a BS/MS in Computer Science or Electrical Engineering and at least 8 years of relevant experience for this Senior Software Engineer role. Significant experience with C programming, networking protocols, and RTOS is essential.
- Is this a remote position, and are there any location preferences for the Senior Software Engineer role?
- Yes, this Senior Software Engineer position is a remote role within the US. Lynx expresses a preference for candidates located in or near the Dallas/Fort Worth area.
- What are the benefits of working as a Senior Software Engineer at Lynx?
- Lynx offers robust benefits including low-cost medical, dental, and vision coverage, a 401K with employer match, generous paid time off, remote work opportunities, an Employee Assistance Program, and opportunities for career growth and professional development.
- What kind of RTOS experience is valued for this Senior Software Engineer position?
- Experience with at least one RTOS such as LynxOS-178, VxWorks, QNX, or FreeRTOS is highly valued. Alternatively, Linux kernel space development experience is also considered relevant for this Senior Software Engineer role.
- What skills are essential for troubleshooting in this Senior Software Engineer role?
- Essential troubleshooting skills for this Senior Software Engineer role include proven ability to resolve complex software and networking challenges, experience with performance analysis tools (perf, ftrace), and packet capture tools (tcpdump/Wireshark).
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