Linux Networking Software Engineer
Carlsbad, CA
Category: Development
Industry: Technology
Reference ID: JN -032026-106013
Date Posted: 03/17/2026
Shortcut: http://careers.eliassen.com/5KBYRZ
Description:
Hybrid 3 Days in Carlsbad, CA
The organization is seeking a software engineer to build core components of a software-defined networking platform across Linux kernel and user space. The role will focus on developing and optimizing networking features including L2/L3 routing, firewalls, VPNs, and tunnels for embedded devices. You will implement high-performance services in C/C++ and Python, analyze complex system behavior, and validate updates in real or simulated environments. Your work will advance reliable, secure, and maintainable networking at scale.
Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.
Rate: $65.00 to $90.00/hr. w2
Responsibilities:
- Maintain Linux kernel modules, drivers, and user-space services for embedded networking devices.
- Implement and modify networking features including VPN tunnels, NAT, firewalls, VRFs, and L2/L3 routing.
- Develop backend services in C/C++ and Python with emphasis on performance, safety, and maintainability.
- Analyze system and networking behavior using tools such as tcpdump and Wireshark.
- Deploy and validate software updates against real or simulated network environments.
Experience Requirements:
- 4+ years modifying and developing Linux kernel modules or low-level Linux drivers, ideally networking-related.
- 4+ years building and maintaining Linux services with systemd.
- Strong understanding of the TCP/IP stack, NAT, firewalls, and VRFs.
- Experience with L2 networking concepts and technologies such as bridging and VLANs.
- Familiarity with IPsec tunnels and configuration via strongSwan.
- Proficiency with C/C++ and Python.
- Ability to design and implement RESTful and gRPC APIs for inter-process and remote communication.
- Proficient at diagnosing complex networking and system-level issues across user space and kernel space.
- Hands-on experience with open-source networking tools such as tcpdump and Wireshark.
- Familiarity with Git.
W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact InfoSec@eliassen.com.
-
Network Engineer SME
Cambridge, MA
Description: Hybrid 3 days per week in Cambridge, MA The organization is a premier technology integrator across engineering, intelligence, and enterprise IT, employing approximately 15,000 professionals worldwide. It designs, develops, and sustains sol...
Date Posted: 02/25/2026 Recommended
-
Cloud Engineer
Merrimack, NH
Description: Hybrid 2 weeks per month onsite in Merrimack, NH or West Lake, TX Our client seeks a Cloud Engineer to support production operations for cloud-based archival platforms. The role focuses on system stability, performance, and resilience whil...
Date Posted: 02/23/2026 Recommended
-
Jr. Integration Engineer
Atlanta, GA
Description: Hybrid 2-3x weekly in Atlanta, GA Our client seeks a junior integration engineer to design and maintain RESTful APIs and connect internal and external systems across a modern platform. The role will contribute to integration development, d...
Date Posted: 03/01/2026 Recommended
-
Senior 3D Computer Vision & LiDAR Engineer
Anywhere
Description: Remote Our client is seeking a Senior 3D Computer Vision and LiDAR Engineer to design and deploy a rigorous processing pipeline for fused UAV and mobile LiDAR in dense forests. The role will architect scalable Python and C++ components for...
Date Posted: 03/11/2026 Recommended
-
Senior Systems Engineer (DevOps / ETL pipelines)
Westlake, TX
Description: Hybrid two weeks onsite a month in either Westlake, TX or Merrimack, NH Our client is seeking a talented senior Systems/DevOps professional who can provide 24/7 support on both AWS EKS clusters, as well as ETL pipelines (Informatica/SQL/Or...
Date Posted: 03/12/2026 Recommended
-
Sr. Network Security Engineer III
Washington dc, DC
Description: Onsite in Washington, DC The Sr. Network Security Engineer III will secure and harden mission-critical enterprise networks for our client within a federal environment. The role will design and manage firewalls, VPNs, IDS/IPS, and NAC, enfo...
Date Posted: 03/09/2026 Recommended
-
SageMaker Platform Engineer
Cincinnati, OH
Description: Onsite in Cincinnati, OH The organization seeks a SageMaker Platform Engineer to support and enhance an AWS-based machine learning platform. The role will focus on infrastructure-as-code with Terraform, CI/CD automation, and core AWS servi...
Date Posted: 03/08/2026 Recommended
-
Vice President, Application Support Engineer
Pittsburgh, PA
Description: Hybrid 4 in either Pittsburgh, PA or Lake Mary, FL Our client seeks a Vice President, Application Support Engineer to strengthen production support for a Depositary Receipts platform. The role will diagnose and resolve complex incidents, d...
Date Posted: 03/09/2026 Recommended
-
Security Administrator
Cincinnati, OH
Description: Hybrid 4 days week onsite, then 3 days onsite/2 remote in Cincinnati, OH We are hiring a Security Administrator for our client, a leading plumbing, sewer, and water damage company headquartered in Cincinnati, Ohio. The role will secure ent...
Date Posted: 03/05/2026 Recommended
-
Senior Software Development Engineer
San Diego, CA
Description: Hybrid 2-3 days onsite in San Diego, CA Our client seeks a Senior Software Development Engineer to design, develop, test, and integrate cross‑platform applications in a secure Agile environment. The role focuses on C++ and Qt/QML on Linux ...
Date Posted: 03/10/2026 Recommended
-
DevOps Engineer
Austin, TX
Description: Hybrid T, W, Th onsite in Austin, TX Our client is seeking a DevOps Engineer to manage CI/CD pipelines and deployment processes for a commerce platform. The role will focus on automation, environment reliability, and collaboration with dev...
Date Posted: 03/10/2026 Recommended
-
Linux Systems Administrator
Westlake, TX
Description: Hybrid Onsite Every Other Week in either Westlake, TX or MMK, NH The organization seeks a Linux Systems Administrator to support distributed compute operations and server stability across Linux, Unix, Windows, hypervisors, and storage. The...
Date Posted: 03/03/2026 Recommended
-
Senior Cybersecurity Architect
Tustin, CA
Description: Onsite in Tustin, CA Our client seeks an experienced Security Architect with prior experience in law enforcement, government, or public safety IT environments and familiarity with CJIS, NIST, FedRAMP, or state compliance frameworks. Due to...
Date Posted: 03/15/2026 Recommended
-
Software Engineer
Merrimack, NH
Description: Hybrid 2 weeks per month onsite in Merrimack, NH The Common Platform Solutions team within Asset Management provides standardized technology stacks, frameworks, and reusable components that accelerate delivery. This role reports to a direc...
Date Posted: 03/07/2026 Recommended
-
Senior Full Stack Engineer, AI
Anywhere
Description: Remote Our client seeks a senior full stack engineer to accelerate AI adoption across the organization. The role blends full stack development, AI engineering, and internal consulting to design secure, scalable solutions and guide teams on...
Date Posted: 03/03/2026 Recommended
-
Infrastructure Engineer
Pittsburgh, PA
Description: Hybrid 4 in either Pittsburgh, PA, New York, NY or Lake Mary, FL Our client is a global investments company that manages and services financial assets throughout the investment lifecycle. The organization supports institutions, corporation...
Date Posted: 02/24/2026 Recommended
-
Senior IT Specialist
Arlington, VA
Description: Onsite in Arlington, VA The organization seeks a Senior IT Specialist to install, integrate, operate, and troubleshoot complex IT infrastructure. The role will design and oversee upgrades to networking, systems, and storage while coordinat...
Date Posted: 03/03/2026 Recommended
-
Full Stack Engineer
Westlake, TX
Description: Hybrid Onsite Every Other Week in Westlake, TX Our client seeks a Full Stack Engineer focused on automation to design, build, and maintain solutions that power enterprise server and storage platforms. You will develop across Python, Go, An...
Date Posted: 03/03/2026 Recommended
-
Sr. KDB+ Developer
Jersey City, NJ
Description: Hybrid Onsite 5 days/week, alternating weeks in either Jersey City, NJ, TX, BOS, MMK or SMT The organization seeks a Sr. KDB+ Developer to build and maintain regulatory reporting applications across multiple asset classes. The role will de...
Date Posted: 03/08/2026 Recommended
-
Technical Lead
Charlotte, NC
Description: Hybrid 3 On in Charlotte, NC The organization seeks a Technical Lead to provide technical direction and architectural leadership for backend platform services, application integrations, and data-driven systems. The role will partner with s...
Date Posted: 02/18/2026 Recommended
-
Product Manager III
Greenwood Village, CO
Description: Onsite in Greenwood Village, CO The Product Manager III will define strategy and deliver digital experiences for our client's customers across data, voice, and video. The role will translate complex telecom offerings such as Ethernet and I...
Date Posted: 03/16/2026 Recommended
-
Information Security Engineer (Ping Identity)
Anywhere
Description: Remote Our client is a large U.S. financial institution headquartered in Cincinnati, Ohio, with a broad regional branch and ATM network across multiple states. The organization is a principal subsidiary of a public bank holding company and...
Date Posted: 03/10/2026 Recommended
-
Senior Cloud Platform Engineer
Anywhere
Description: Remote Our client seeks a senior platform engineer to design, build, and operate secure, scalable AWS infrastructure. The role focuses on reusable platform capabilities, automation, and governance that enable engineering teams to deliver a...
Date Posted: 03/11/2026 Recommended
-
Data Center Infrastructure Engineer
Washington dc, DC
Description: Hybrid 2-3 days in Washington, DC The Data Center Infrastructure Engineer will design and sustain mission-critical data center environments for the federal sector. The role will support secure, high-availability operations across servers, ...
Date Posted: 03/13/2026 Recommended
-
Lead Network Administrator
Boston, MA
Description: Onsite in Boston, MA Our client operates one of the nation’s largest mass transit systems, serving millions of passenger trips across bus, rapid transit, streetcar, trolley, and commuter rail services. The organization maintains a large a...
Date Posted: 03/16/2026 Recommended
-
Lead Software Engineer
Hartford, CT
Description: Hybrid 2-3 days onsite in either Hartford, CT or Short Hills, NJ As Lead Software Engineer, you will drive technical direction and execution for robust, scalable, and maintainable enterprise software solutions within a cloud-first environm...
Date Posted: 03/14/2026 Recommended
-
Data Engineer
St. Louis, MO
Description: Hybrid Local candidates strongly preferred - onsite 2-3 days per week. If non-local, they will be required to come in usually ~2 months for 3 days. in St. Louis, MO The organization seeks a Data Engineer to build cloud-native data processi...
Date Posted: 03/09/2026 Recommended
-
Sr. Program Manager
Washington dc, DC
Description: Onsite in Washington, DC The Sr. Program Manager will lead complex, mission-critical IT programs for senior government stakeholders to strengthen operational stability and drive modernization across federal environments. The role will own ...
Date Posted: 03/09/2026 Recommended
-
Full Stack Developer
Merrimack, NH
Description: Hybrid 2 weeks per month onsite in Merrimack, NH only in Merrimack, NH Our client provides a wide range of brokerage products, solutions, and services to retail and institutional investors, as well as to third-party intermediaries. Busines...
Date Posted: 02/22/2026 Recommended
-
SolarWinds Infrastructure Engineer
Pittsburgh, PA
Description: Hybrid 4 in either Pittsburgh, PA, Lake Mary, FL Our client is a global investments company that provides investment management and investment services across 35 countries. The organization serves institutions, corporations, and individual...
Date Posted: 02/23/2026 Recommended
Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Applicants with disabilities that believe they require an accommodation or assistance with a position, please email our HR team at hradmin@eliassen.com. This email inbox is designed exclusively to assist job seekers whose disability prevents them from being able to apply online. Emails sent for other purposes will not receive a response.
Please be advised that a number of fraudulent job postings have been released under the Eliassen Group brand.
Unfortunately, fraudulent job postings can happen. If anyone reaches out to you about an open position connected with Eliassen Group, never provide personal or financial information to anyone who is not clearly associated with Eliassen Group
If anyone seemingly from Eliassen Group has ever requested this personal information in the past or does so in the future, please contactInfoSec@eliassen.com.
Please ensure that you are working directly with us by confirming the following:
- When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
- Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group, as indicated above