> Markdown version of [/jobs/ext/2720261-sr-satcom-modem-engineer](https://www.wearedevelopers.com/jobs/ext/2720261-sr-satcom-modem-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Satcom Modem Engineer - **Company:** Planet Labs PBC - **Location:** San Francisco, CA, United States (Remote available) - **Experience:** Expert - **Salary:** $162,600.0 - $203,200.0 - **Contract:** Permanent contract - **Skills:** Data Analysis, Systems Engineering, Modems, Data Centers, Data Transmissions, Linux, Python (Programming Language), MATLAB, Satcom, Signal Processing, Simulink, Systems Integration, Linux Development, Information Technology - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/sr-satcom-modem-engineer-planetlabs-7688896 ## About the Role * Strong experience with DSP algorithms, digital communication theory, and implementation (including digital modulation, synchronization, error correction, floating-point, and fixed-point design). * Experience with Software Defined Radios (SDR), specifically GNU Radio and Linux development tools. * Experience defining and measuring radio performance metrics in real time (e.g., SNR, BER, PER, and constellation visualization). * Experience with state-of-the-art RF System-on-Chip (SoC) implementations. * BS in Electrical/Computer Science or equivalent experience with a focus on digital communicatons. What Makes You Stand Out: * MS or Ph.D. in Electrical Engineering with a focus on digital communications. * Expertise in Matlab and Simulink for modem design. * Experience with SDR platforms and associated signal processing libraries (e.g., GNURadio). * Proficiency in Linux, Python, and data analysis tools. * Experience with optical communications and links for space applications. * Expertise in Radar and/or Phased Array technology. ## Description Planet is developing the next generation of small satellite buses, featuring high-resolution optical imaging payloads, a space-based data center connected by optical inter-satellite links (OISLs), and high-speed RF/Microwave communication links. We continuously iterate on and develop small spacecraft communication systems-including board-level hardware, antennas, and ground station equipment-to achieve record data rates and link performance. Our system utilizes proprietary and industry-standard modems, transceivers across several bands, optical laser communication systems, and a worldwide network of ground stations., We are seeking an experienced Satcom Modem Engineer to develop and mature our next-generation onboard satcom links, ground radios, and antenna systems, pushing the frontiers of satellite communications. You will architect, design, simulate, implement, and validate cutting-edge software-defined Satcom radios. Responsibilities include characterizing the SDR link performance of Planet's next-generation S through Ka-band and optical terminals, selecting vendors, and managing subcontractors for Satcom solutions. You will facilitate and conduct rigorous testing on space and ground communication subsystems to ensure flight readiness. Success requires close collaboration with RF, EE, Flight SW, systems engineering, missions, and manufacturing teams. The ideal candidate thrives in an agile, fast-paced environment and is comfortable with ambiguity. This is a full-time, hybrid role which will require you to work from our San Francisco office 3 days per week. Impact You'll Own: * Develop GnuRadio-based ground modem solutions. * Architect, design, and verify space segment software-defined radios and modems. * Lead on-orbit performance validation for end-to-end satellite communications systems. * Lead RF/MW/Optical Communications system integration and testing. ## Related Videos - [Location Verification without GPS?](https://www.wearedevelopers.com/videos/1184-location-verification-without-gps) - [Leveraging Large Language Models for Legacy Code Translation: Challenges and Solutions](https://www.wearedevelopers.com/videos/1157-leveraging-large-language-models-for-legacy-code-translation-challenges-and-solutions) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Unleash the power of 5G in your code: transform your apps](https://www.wearedevelopers.com/videos/1567-unleash-the-power-of-5g-in-your-code-transform-your-apps) - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The CAMARA Project: How Telcos Collaborating Improves Developer Experience](https://www.wearedevelopers.com/magazine/671-the-camara-project-how-telcos-collaborating-improves-developer-experience) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)