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Senior FPGA Design Engineer

About Lynk

Lynk is the inventor of satellite direct to device or D2D technology, and has the world’s only commercial license from the FCC to operate a commercial D2D system. Today, Lynk allows mobile network operators' subscribers to send and receive text messages to and from space via standard unmodified, mobile devices. Lynk’s service has been tested and proven on all seven continents, has regulatory approvals in more than 30 countries, and is currently being deployed commercially based on more than 40 MNO commercial service contracts covering approximately 50 countries.

Our technology will enable all 8 billion people on the planet to stay connected with the existing standard phone in their pocket. Everywhere. No matter what.

By joining Lynk, you will have the opportunity to directly touch the lives of billions. Your mission will be to bring mobile broadband to billions, pull hundreds of millions out of poverty, and save countless lives.

Job Summary

Lynk is developing cellular-based space payloads and seeks an LTE and 5G RAN Engineer to design and develop Radio Access Network - RAN infrastructure for satellite direct to device services. This role involves developing DSP for LTE and 5G, optimizing the physical layer algorithms, and implementing custom resource scheduling algorithms. The ideal candidate will have a strong background in wireless communications, signal processing, and RAN development to drive innovation in next-generation satellite-based mobile networks.

Core Responsibilities

As an LTE and 5G RAN Engineer your core responsibilities are as follows

  • Design and implement physical layer - PHY transceiver algorithms and medium access control - MAC layer procedures for satellite-direct-to-phone links based on LTE and 5G NR.

  • Develop baseband modems on software defined radio - SDR platforms.

  • Evaluate the performance of the cellular base station in simulation and on the target platform.

  • Develop test software and drivers to support unit, integration, and system testing of all base station software functions.

  • Perform link budget analysis of LTE and 5G system between satellite and UEs.

  • Work with other team members to benchmark payload software applications.

Qualifications

  • A Master’s degree in Engineering with 3 to 5 years of related experience is required.

  • In-depth knowledge of wireless communication systems such as, OFDM, MIMO, etc.

  • Experience in physical layer algorithm design, algorithm validation, feature bring-up, and commercialization.

  • Strong knowledge of the 3GPP standards, including LTE and 5G PHY, MAC, and RRC specifications.

  • Strong knowledge of software defined radios and their implementation.

  • Familiarity with existing telecommunications software stacks, such as LTE, 5G NR implementations.

  • Hands-on experience in lab testing and characterization.

  • Deep understanding of communication theory and signal processing related algorithms design, such as timing recovery, signal estimation and detection, RF impairment estimation and correction, channel modeling and estimation, Doppler compensation techniques, etc.

  • Experience with MATLAB, Python, C or C++ for algorithm development, modeling, and simulation.

  • Experience using test equipment like signal generators, spectrum analyzers, etc.

Job Location

Washington, DC area

Average salary estimate

$115000 / YEARLY (est.)
min
max
$100000K
$130000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

What You Should Know About Senior FPGA Design Engineer, Lynk

At Lynk, we're pioneering the way people connect with one another and the world around them—directly from their mobile devices to satellites in space. As a Senior FPGA Design Engineer, you'll play a critical role in this mission to revolutionize communications. Imagine a world where everyone can text or send data directly from anywhere on the planet, just because they have a phone. That's our goal, and we’re seeking enthusiastic, skilled engineers to help us make it happen! Your work will specifically involve developing cellular-based space payloads, focusing on the cutting-edge technologies of LTE and 5G. This means diving deep into designing and implementing physical layer and medium access control layer procedures that ensure our satellite links work seamlessly with existing mobile devices. If you have a solid background in wireless communications, signal processing, and RAN development, you will thrive in our innovative environment. You’ll not only design and develop but also evaluate performance across multiple platforms, and you’ll bring your strong knowledge of communication systems to help optimize our algorithms and implement them with precision. Join us in making a real impact where technology meets humanity, as we strive to bring mobile broadband connectivity to billions around the globe. At Lynk, you are not just taking on a job; you are taking part in truly transformative work.

Frequently Asked Questions (FAQs) for Senior FPGA Design Engineer Role at Lynk
What are the core responsibilities of a Senior FPGA Design Engineer at Lynk?

As a Senior FPGA Design Engineer at Lynk, you'll focus primarily on designing and implementing physical layer algorithms and medium access control procedures specific to satellite-direct-to-phone links using LTE and 5G technologies. Your responsibilities also include developing software-defined radio platforms, conducting performance evaluations of cellular base stations, and developing test software for unit and system testing. Additionally, you will perform link budget analysis to ensure optimal performance between satellites and user equipment.

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What qualifications are required for the Senior FPGA Design Engineer role at Lynk?

To succeed as a Senior FPGA Design Engineer at Lynk, you will need a Master’s degree in Engineering with 3 to 5 years of relevant experience. A strong foundation in wireless communication systems like OFDM and MIMO is essential. You should also have hands-on expertise with physical layer algorithm design, a deep understanding of 3GPP standards, knowledge of software-defined radios, and familiarity with telecommunications software stacks. Skills in MATLAB, Python, C, or C++ are also required for algorithm development and simulation.

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How does the work of a Senior FPGA Design Engineer contribute to Lynk's mission?

The work of a Senior FPGA Design Engineer at Lynk is critical to our mission of providing direct-to-device satellite communications. Your expertise in developing LTE and 5G RAN infrastructure directly contributes to our capability to connect billions of people using their existing mobile devices. By optimizing satellite communication technologies, you are helping to bridge the digital divide, pulling communities out of poverty and saving lives through enhanced connectivity.

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What technologies does Lynk use for the Senior FPGA Design Engineer position?

At Lynk, the Senior FPGA Design Engineer role involves working with advanced telecommunications technologies, including LTE and 5G for Radio Access Networks. Experience with software-defined radios is essential, along with knowledge of technologies such as MIMO, OFDM, and signal processing algorithms. Familiarity with simulations and testing equipment like signal generators and spectrum analyzers will also be valuable in evaluating and enhancing performance.

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What is the work environment like for a Senior FPGA Design Engineer at Lynk?

The work environment at Lynk for a Senior FPGA Design Engineer is dynamic, collaborative, and innovative. You'll be engaging with leading experts in the fields of satellite communications and wireless technologies to drive advancements forward. With an emphasis on teamwork and ideation, you’ll tackle complex challenges in a high-tech lab setting while contributing to projects that have a global impact, supporting our vision of universal connectivity.

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Common Interview Questions for Senior FPGA Design Engineer
Can you explain your experience with LTE and 5G RAN technologies?

When answering this question, detail specific projects where you've worked with LTE or 5G technologies. Describe your role in developing algorithms or systems and how your contributions led to successful outcomes. Highlight your familiarity with standards and protocols in the 3GPP framework, as well as any hands-on lab work that supports your claims.

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What is your approach to designing and implementing PHY algorithms?

It's essential to explain your systematic approach, possibly mentioning your initial research and understanding of the problem, followed by development phases which include simulation and testing. Talk about your experience with software tools like MATLAB and how you validate the performance of your designed algorithms in practical scenarios.

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How do you perform link budget analysis for satellite communications?

Your response should include a step-by-step explanation of how you assess factors such as signal strength, distance, and environmental considerations. Discuss any specific tools or software you use for these calculations, and provide examples of how your analysis has contributed to optimizing system performance in previous projects.

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What are the challenges you face when developing DSP algorithms for wireless communications?

Identify common challenges such as noise interference, signal fading, or latency issues. Share your strategies for overcoming these using simulations, prototyping, and testing under various conditions. Citing specific experiences can demonstrate your ability to problem-solve and innovate in challenging situations.

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Can you describe a time when you worked collaboratively on a RAN development project?

In your answer, provide context regarding the project, including your role and the team composition. Discuss how collaboration improved the project outcomes, such as ensuring that various aspects of development were integrated effectively. Highlight communication strategies you used to coordinate with different team members or departments.

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How do you stay updated on advancements in wireless communication technology?

Mention how you actively engage with industry publications, attend conferences, or participate in online forums and webinars. Also, discuss any continuous education efforts, such as certifications or coursework that have helped you remain at the forefront of technology developments, ensuring that your work has immediate relevance.

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What software tools do you prefer for algorithm development and why?

Highlight software tools that you are proficient in, such as MATLAB, Python, or C/C++. Explain your reasons for preference based on the tools' capabilities, your past experiences with them, and how they complement your workflow in developing efficient algorithms and simulations for telecommunications projects.

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What role does testing play in your development process?

Emphasize the importance of rigorous testing in your development cycle, whether through simulation, unit, or system testing. Discuss how you integrate testing early in the process to identify and address issues swiftly and mention any tools used for testing and validation in your previous roles.

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How do you handle tight deadlines in RAN development?

Share techniques you use to manage your time effectively when faced with deadlines, such as prioritizing tasks, utilizing project management tools, or engaging in agile methodologies. Provide an example where you successfully met a deadline without compromising quality, showcasing both your organizational and technical skills.

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Why do you want to work for Lynk as a Senior FPGA Design Engineer?

Your answer should reflect a genuine understanding of Lynk’s mission and values, highlighting how they align with your personal and professional goals. Discuss specific aspects of the company’s technology and projects that excite you, and explain how you envision contributing to the team’s success in revolutionizing satellite communications.

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DATE POSTED
March 14, 2025

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