MAC/Layer-2 Systems Engineer

4 weeks ago

Arlington, Virginia, United States E-SPACE Full time

Ready to make connectivity from space universally accessible, secure and actionable? Then you've come to the right place

E-Space is bridging Earth and space to enable hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are building a highly-advanced low Earth orbit (LEO) space system that will fundamentally change the design, economics, manufacturing and service delivery associated with traditional satellite and terrestrial IoT systems.

We're intentional, we're unapologetically curious and we're 100% committed to innovate space-based communications and deliver actionable intelligence that will expand global economies, protect space and our planet and enhance our overall quality of life.

As a Satellite MAC (Medium Access Control) / Layer-2 Systems Engineer, you will be responsible for gathering system requirements and designing, modeling and simulating the different layers of the communications stack for a LEO satellite constellation communication network. In this role, you will leverage your up to 10 years of expertise in system analysis and design of a multiple-access wireless MAC.

This position will report to the Sr. Direction of RF Systems Engineering and will work closely with systems, software, hardware and test teams that are responsible for delivering the communications payload. This position is based in our Saratoga, CA office.

What you will do

  • Understand system requirements in depth, derive layer-2 subsystem requirements and drive design and test plans using modeling and simulation results.
  • Design and develop advanced wireless MAC layer algorithms (channel-aware, QoS-aware, user-aware scheduling, scheduled and grant-free access schemes, link adaptation, mobility and handover, multibeam management, segmentation and reassembly, retransmissions, etc.) specifically adapted for the dynamic LEO environment.
  • Analyze and optimize layer-2 performance, taking into consideration factors like rapidly changing channel conditions, Doppler effects, and satellite power constraints.
  • Develop innovative solutions for link adaptation, interference mitigation, and handover strategies in LEO 5G networks.
  • Build realistic simulation models and conduct performance evaluations of PHY designs under diverse LEO scenarios.
  • Collaborate with RF, modem, and antenna engineers to ensure optimal integration of the MAC layer with satellite and ground station hardware.

What you bring to this role

  • MS or PhD in EE/CS/CE or a related field
  • 10 years of experience
  • Deep understanding of wireless communications and medium access principles, especially in the context of satellite systems.
  • Strong knowledge of communications theory, modulation and coding schemes, medium access schemes for orthogonal and non-orthogonal scenarios, link adaptation including power control, segmentation, packing and reassembly of packets, link-level messaging schemes. Should know the why and not just the what.
  • Hands-on experience with designing, implementing and testing various MAC layer algorithms in simulation and on target.
  • Proficiency in simulation tools like MATLAB, Python, NS3 or specialized satellite network modelling software.
  • Excellent problem-solving with a from-first-principles approach.
  • Strong analytical and communication skills. Team player.

Bonus points for the following

  • Strong knowledge of 3GPP standards, preferably 5GNR.

We are redefining how satellites are designed, manufactured and used—so we're looking for candidates with passion, deep knowledge and direct experience on LEO satellite component development, design and in-orbit activities. If that's your experience – then we'll be immediately wow-ed.

Why E-Space is right for you:

As a member of our team, you will play a crucial role in driving our success. Our team members have a strong sense of dedication and responsibility; this includes a strong commitment to our mission to create an entirely new suite of global capabilities to improve lives, business efficiencies and build a smarter planet. This means that there will be times when extra hours, including nights and weekends, may be needed to meet critical deadlines and mission goals. In return, we offer a dynamic work environment with opportunities for professional growth and development and the chance to make a meaningful impact in a high-growth industry.

We want you to make the most of your journey at E-Space. That's why we support and invest in the physical, emotional and financial well-being of our team members and their families. Some of what you can expect when working at E-Space:


• An opportunity to really make a difference


• Sustainability at our core


• Fair and honest workplace


• Innovative thinking is encouraged


• Competitive salaries


• Continuous learning and development


• Health and wellness care options


• Financial solutions for the future


• Optional legal services (US only)


• Paid holidays


• Paid time off

  • IT Systems Engineer

    1 week ago

    Arlington, Virginia, United States VRE Full time

    Virginia Railway Express (VRE) is looking for a dedicated professional to fill the role of Systems Engineer. This pivotal position within our Information Security & Technology (IST) Department involves the administration, enhancement, and support of our technological frameworks. The Systems Engineer will collaborate closely with the IST Director to...

  • Information Systems Engineer

    1 week ago

    Arlington, Virginia, United States VRE Full time

    About VRE Virginia Railway Express (VRE) is on the lookout for a dedicated and skilled Systems Engineer to oversee, enhance, and support our technological infrastructure. This pivotal role within our Information Security & Technology (IST) Department involves collaborating with the IST Director to strategize, develop, and implement IT initiatives; acquiring,...

  • Information Systems Engineer

    1 week ago

    Arlington, Virginia, United States VRE Full time

    Virginia Railway Express (VRE) is seeking a dedicated and skilled Systems Engineer to oversee, improve, and maintain our technology infrastructure. This pivotal role within our Information Security & Technology (IST) Department will assist the IST Director in strategizing, developing, and executing IT initiatives; procuring, implementing, and managing...

  • Information Technology Systems Engineer

    2 weeks ago

    Arlington, Virginia, United States VRE Full time

    About VREVirginia Railway Express (VRE) is in search of a dedicated and skilled Systems Engineer to oversee, improve, and maintain our information technology infrastructure. This pivotal role within our Information Security & Technology (IST) Department will involve collaborating with the IST Director to strategize, develop, and implement IT initiatives;...

  • IT Systems Engineer

    2 weeks ago

    Arlington, Virginia, United States ASCD Full time

    ABOUT USASCD+ISTE represents two dynamic nonprofit organizations dedicated to advancing educational technology and curriculum development. With a combined legacy of over a century, we empower our members through innovative solutions that integrate technology with teaching methodologies. Our team is driven by passion and a commitment to excellence, ensuring...

  • Embedded Systems Security Engineer

    1 week ago

    Arlington, Virginia, United States Two Six Technologies Full time

    At Two Six Technologies, we focus on pioneering and executing innovative solutions that tackle some of the most significant challenges faced globally.We are seeking a Hardware Reverse Engineer who is enthusiastic about performing advanced investigations and reverse engineering on embedded systems and architectures. This position is ideal for individuals...

  • Embedded Systems Security Engineer

    2 weeks ago

    Arlington, Virginia, United States Two Six Technologies Full time

    At Two Six Technologies, we focus on pioneering and executing state-of-the-art solutions that tackle some of the most significant global challenges.We are seeking a Hardware Reverse Engineer who is enthusiastic about performing sophisticated research and reverse engineering on embedded systems and architectures. This position offers a unique opportunity for...

  • Embedded Systems Security Engineer

    1 week ago

    Arlington, Virginia, United States Two Six Technologies Full time

    At Two Six Technologies, we are committed to pioneering and executing state-of-the-art solutions that tackle some of the most significant challenges faced globally.We are seeking a Hardware Reverse Engineer who is enthusiastic about performing in-depth research and reverse engineering on embedded systems and architectures. This position is ideal for...

  • Embedded Systems Security Engineer

    2 weeks ago

    Arlington, Virginia, United States Two Six Technologies Full time

    Join Two Six Technologies as a Hardware Reverse EngineerAt Two Six Technologies, we are dedicated to developing and implementing advanced solutions that address some of the most intricate challenges facing our world today. Our commitment to collaboration and trust enables us to push the limits of innovation, empowering our team and aiding our clients in...

  • Information Systems Engineer

    1 week ago

    Arlington, Virginia, United States VRE Full time

    About Virginia Railway Express (VRE)Virginia Railway Express (VRE) is on the lookout for a dedicated and skilled Systems Engineer to manage, enhance, and support our IT infrastructure. This pivotal role within our Information Security & Technology (IST) Department will assist the IST Director in strategizing, developing, and executing IT initiatives;...

  • Network Solutions Engineer

    15 hours ago

    Arlington, Virginia, United States DMI (Digital Management, LLC) Full time

    About DMI DMI is a prominent global provider of digital solutions operating at the intersection of public and private sectors. With extensive capabilities across IT managed services, cybersecurity, cloud migration, and application development, DMI offers both on-site and remote support to clients in various sectors including government, healthcare,...

  • Cyber Systems Engineer

    1 week ago

    Arlington, Virginia, United States Booz Allen Hamilton Full time

    F-35 Cyber Systems EngineerCompany: Booz Allen HamiltonWe are seeking a highly skilled Cyber Systems Engineer to play a crucial role in shaping the future of global cyber missions. As a specialist in cyber systems engineering, you will be responsible for evaluating and enhancing cyber security solutions to bolster our nation's defense systems.Key...

  • Cloud Systems Engineer

    5 days ago

    Arlington, Virginia, United States TRIDENT MARITIME SYSTEMS Full time

    Job Title: Cloud Engineer**Job Summary:**We are seeking a highly skilled Cloud Engineer to join our team at Trident Maritime Systems. As a Cloud Engineer, you will play a pivotal role in designing, implementing, and maintaining our cloud and network infrastructure.Key Responsibilities:Cloud Architecture and Design: Develop and deploy modular cloud-based...

  • Elastic Systems Engineer

    2 weeks ago

    Arlington, Virginia, United States Argo Cyber Systems Full time

    Job OverviewArgo Cyber Systems is on the lookout for a Systems Engineer specializing in Elastic technologies to contribute to a vital customer initiative.Key Responsibilities:Develop and implement Kibana visualizations for data representation.Set up and configure Elasticsearch instances to meet project requirements.Design Elasticsearch indices for optimal...

  • Cloud Systems Engineer

    5 days ago

    Arlington, Virginia, United States Argo Cyber Systems Full time

    Job SummaryWe are seeking a highly skilled Cloud Engineer to join our team at Argo Cyber Systems. As a Cloud Engineer, you will be responsible for designing, building, and maintaining cloud-based systems and architectures to support our mission-critical development and sustainment programs.Key ResponsibilitiesDevelop advanced cloud-oriented automation and...

  • Embedded Systems Software Engineer

    2 weeks ago

    Arlington, Virginia, United States SAIC Full time

    Position OverviewSAIC is looking for a skilled Embedded Software Engineer to contribute to innovative projects focused on next-generation System on Chip (SoC) designs for defense applications. This role involves collaboration with the Defense Innovation Unit to create a cutting-edge cyber solution characterized by low Size, Weight, and Power (SWaP)...

  • MBSE Systems Engineer

    3 days ago

    Arlington, Virginia, United States Global Systems Technologies Full time

    Job DescriptionGlobal Systems Technologies (GST) is seeking a highly skilled MBSE Systems Engineer to join our team in the DC, Maryland, and Virginia area. As a prime federal contractor for the Transportation Security Administration, we are building a team to assist the TSA in developing a major MBSE centralized environment for systems modeling and...

  • Lead Engineer for Advanced Energy Systems

    2 weeks ago

    Arlington, Virginia, United States American Systems Full time

    We are in search of a Lead Engineer for Advanced Energy Systems who possesses a deep understanding of innovative technologies, engineering principles, analytical skills, and capability management to contribute to national defense initiatives. This position demands specialized knowledge in Research, Development, Test, and Evaluation (RDT&E) concerning...

  • Broadcast Systems Engineering Lead

    2 weeks ago

    Arlington, Virginia, United States Sinclair Broadcast Group Full time

    At Sinclair Broadcast Group, our commitment to excellence in content technology is fundamental to our operational success. We are driven by innovation and a passion for delivering the finest local news and sports content. As we enhance our content offerings and broaden our distribution channels across broadcast, cable, and digital platforms, we are adopting...

  • IT Systems Architect

    1 week ago

    Arlington, Virginia, United States VRE Full time

    About Virginia Railway Express (VRE)Virginia Railway Express (VRE) is on the lookout for a dedicated and skilled Systems Engineer to oversee, enhance, and maintain our technology infrastructure. This pivotal role within our Information Security & Technology (IST) Department will assist the IST Director in strategizing, developing, and executing IT...