Senior Ground Software Engineer

CesiumAstro, Inc.; Denver (CO); On-site; USD 133,000 - 161,000; Full time

Benefits offered by this job

Stock options

Health, dental, vision

HSA

FSA

Life insurance

Disability insurance

Retirement plans

Job summary

CesiumAstro, Inc. is seeking a Senior Ground Software Engineer in Denver to lead the design and deployment of ground software for a next‑gen satellite system, collaborating with hardware, operators, and software teams to ensure reliable command, control, and telemetry.

You will influence architecture, drive real‑time data processing, and ensure testability in a fast-paced environment. The role requires 5+ years in satellite ground software, strong Python/C++/Java skills, and proficiency with

Qualifications

• Minimum of 5 years of experience in software engineering, focusing on satellite ground systems.
• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• Demonstrated experience leading a software team through product development.

Responsibilities

• Execute the design, development, and deployment of ground software systems for a new satellite system, including command and control, telemetry, telemetry database, and ground station software.
• Rapidly execute to produce a simple, reliable ground system.
• Implement real-time data acquisition, processing, and visualization systems for satellite telemetry.
• Integrate and test ground software with satellite, ground stations, and network infrastructure.
• Develop automated systems for satellite operation and ground system monitoring.
• Conduct rigorous testing and validation of ground software, including simulations and real-world scenarios.
• Troubleshoot and resolve software issues encountered during satellite operations.
• Conduct tests with ground networks, spacecraft software and hardware simulators.
• Collaborate closely with hardware engineers, satellite operators, and other software teams to ensure seamless integration and optimal performance.
• Keep up to date with the latest advancements in satellite communication technology and incorporate relevant innovations into our systems.
• Provide technical leadership and mentorship to the software development team, fostering a culture of excellence and continuous improvement.

Skills

Satellite ground systems

Python

C++

Java

CCSDS CSP

Linux/Unix

Agile DevOps

Cybersecurity

Team leadership

Satellite operator experience

Education

Bachelor's or Master’s in CS/Engineering

Tools

TCP/IP

Job description

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
At CesiumAstro , we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

We are seeking a Senior Ground Software Engineer to join our dynamic team. The ideal candidate will have hands-on experience as a satellite operator, offering unique insights into the systems they will be building and integrating.
Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management to ensure the successful build and launch of our satellite. Element will be the largest, most powerful rideshare satellite in LEO. We’re launching eight of them in the next four years, starting with our first launch this year. Together, our small team will design, build, and iterate to reduce mass and cost while increasing performance, reliability, and manufacturability of a new generation of satellites. Let’s build!

Job Duties And Responsibilities

• Execute the design, development, and deployment of ground software systems for a new satellite system, including command and control, telemetry, telemetry database, and ground station software.
• Rapidly execute to produce a simple, reliable ground system.
• Implement real-time data acquisition, processing, and visualization systems for satellite telemetry.
• Integrate and test ground software with satellite, ground stations, and network infrastructure.
• Develop automated systems for satellite operation and ground system monitoring.
• Conduct rigorous testing and validation of ground software, including simulations and real-world scenarios.
• Troubleshoot and resolve software issues encountered during satellite operations.
• Conduct tests with ground networks, spacecraft software and hardware simulators.
• Collaborate closely with hardware engineers, satellite operators, and other software teams to ensure seamless integration and optimal performance.
• Keep up to date with the latest advancements in satellite communication technology and incorporate relevant innovations into our systems.
• Provide technical leadership and mentorship to the software development team, fostering a culture of excellence and continuous improvement.

Job Requirements And Minimum Qualifications

• Minimum of 5 years of experience in software engineering, with a focus on satellite ground systems.
• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• Demonstrated experience leading a software team through product development.
• Prior experience as a satellite operator is required to provide clarity into the true needs of the system being developed.
• Proficiency in programming languages including Python, Java, and C++
• Experience in satellite test and data collection applications.
• Strong knowledge of satellite communication protocols, such as CCSDS and CSP.
• Familiarity with ground station hardware and RF communication principles.
• Familiarity with common RF coding schemes, such as DVBS2.
• Experience with network architectures and protocols, including TCP/IP and UDP.
• Experience with load balancing network applications and managing cloud-based systems.
• Knowledge of Linux/Unix operating systems and system administration.
• Experience with software development methodologies, including Agile and DevOps practices.
• Knowledge of cybersecurity best practices specific to satellite and ground systems.
• Strong problem-solving-skills, with the ability to diagnose and resolve complex software issues in real-time.
• Optimistic, can-do attitude and the ability to produce in a chaotic environment.
• Excellent communication and collaboration skills, with the ability to work effectively in a multidisciplinary team environment.

Preferred Experience

• Experience with the Space Development Agency NEBULA standard.
• Ph. D in Computer Science, Engineering, or related field.

$133,000 - $161,000 a year

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.