Job Summary

We are seeking Senior Embedded Software Engineer with extensive experience in firmware and embedded software development. The ideal candidate has a strong background in low-level programming, hardware bring-up, and real-time embedded systems. This role focuses on developing software for gateway systems, requiring high reliability, robustness, and fault tolerance.

Key Responsibilities:

• Develop and maintain firmware and embedded software for satellite systems.
• Perform hardware bring-up, including board-level debugging, bootloader development, and peripheral integration.
• Collaborate with hardware engineers to validate and optimize system functionality.
• Ensure the software is highly reliable, fault-tolerant, and resilient to extreme environmental conditions, meeting the rigorous demands of satellite applications.
• Debug complex system issues involving hardware-software interaction.
• Optimize software performance for real-time and resource-constrained environments.

Required Skills & Qualifications:

• 10+ years of experience in embedded software and firmware development.
• Strong expertise in C and C++ programming. 
• Proven experience with Linux OS 
• Hands-on experience with hardware bring-up, including debugging bootloaders, memory interfaces, and peripheral drivers.
• Experience with real-time systems and low-level embedded programming. 
• Strong knowledge of networking and binary protocols.

Preferred Qualifications:

• Familiarity with Xilinx hardware platforms.
• Experience with Petalinux and Yocto build systems.
• Understanding of OpenMP and parallel computing optimizations.
• Experience in aerospace or satellite system development.
• Linux device drivers, Low level drivers, QNX/RTOS drive programming, ARM assembly, Embedded C/C++

Position Overview

We are seeking an Electrical Software Test Engineer to join our Software Validation and Testing Team. In this role, you will support component level and spacecraft level testing, working across multiple AST engineering divisions. You will collaborate closely with software developers and internal engineering teams to assist in the development, testing, and deployment of vehicle software using hardware in the loop (HIL) and software in the loop (SIL) testing techniques. This is an excellent opportunity for an engineer passionate about electrical systems, testing, and spacecraft operations.

Key Responsibilities

• Execute tests on component level and spacecraft level platforms.
• Document test results, including post processing data and generating test reports.
• Support investigations of test failures, anomalies, and root cause analysis.
• Assist in developing test plans, procedures, and documentation.
• Serve as the onsite electrical engineering representative during testing activities.
• Ensure safe and effective use of Electrical Ground Support Equipment (EGSE).
• Track project deliverables and support test team coordination.
• Provide technical guidance and uphold industry best practices.
• Collaborate with systems, electrical, and software engineers to support integrated operations and resolve issues.

Qualifications

Education

Bachelor’s degree in Engineering or a related field, preferably Electrical Engineering or Computer Engineering.

Experience

• A minimum of 2+ years of experience in electrical testing and software validation.
• Experience with environmental testing and spaceflight hardware.
• Experience programming in C/C++ and Python.
• Proficiency with electrical test tools such as oscilloscopes, logic analyzers, multimeters, and DC power supplies.
• Ability to read and analyze electrical schematics and circuit diagrams.
• Comfort with version control systems, preferably Git.
• Familiarity with command line tools and working in Linux or Windows environments.
• Excellent written and verbal communication skills.

Preferred Qualifications

• Experience in RF engineering.
• Understanding of HIL/SIL testing concepts.
• Ability to design simple PCBs for testing or engineering tasks.
• Familiarity with systems engineering verification and validation principles.
• Experience with MATLAB/Simulink.
• Experience with Speedgoat, dSPACE, or similar testing platforms.
• Familiarity with environmental health and safety requirements.
• Knowledge of grounding and ESD procedures.
• Experience working in lab and cleanroom environments.

Soft Skills

• Strong interpersonal skills with the ability to collaborate effectively in cross functional teams.
• Excellent written and verbal communication skills.
• High attention to detail, ensuring accuracy in test execution, documentation, and reporting.
• Strong analytical problem-solving abilities.
• Ability to manage multiple priorities in a fast-paced engineering environment.
• Self-motivated and eager to learn new tools and testing techniques.

Technology Stack

• Programming: C/C++, Python
• Tools & Equipment: Oscilloscopes, logic analyzers, multimeters, DC power supplies
• Platforms: Linux, Windows
• Version Control: Git
• Additional Tools (preferred): MATLAB, Simulink, Speedgoat, dSPACE

Physical Requirements

• Ability to work in standard office, laboratory, and test facility environments.
• Ability to use computers, engineering tools, and test equipment for extended periods.
• Ability to follow safety protocols when working with spacecraft hardware, electrical systems, and lab equipment.

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands. 

Position Overview

We are seeking an Associate Electrical Software Engineer to join our Software Validation and Testing Team. In this role, you will support component‑level and spacecraft‑level testing across multiple AST engineering divisions. You will work closely with software developers and engineering teams to assist in the development, testing, and deployment of vehicle software, using both hardware‑in‑the‑loop (HIL) and software‑in‑the‑loop (SIL) environments. This position is ideal for an engineer eager to grow their skills across electrical systems, software testing, and integrated spacecraft operations.

Key Responsibilities

• Execute and support testing activities on component‑level and spacecraft‑level platforms.
• Document test results, including post‑processing data and generating test reports.
• Support investigations into test failures, anomalies, and root‑cause analysis.
• Assist in developing test plans, procedures, and related documentation.
• Serve as the on‑site electrical engineering representative during testing activities.
• Ensure proper, safe, and effective use of Electrical Ground Support Equipment (EGSE).
• Track project deliverables and support team coordination.
• Provide technical guidance and help maintain industry best practices across the team.
• Collaborate with systems, electrical, and software engineers to support integrated operations and issue resolution.

Qualifications

Education

Bachelor’s degree in Engineering or a related technical field, preferably Electrical Engineering or Computer Engineering. 

Experience

• A minimum of 1–3 years of relevant engineering experience (internships or co‑ops may count toward experience).
• Experience with environmental testing or spaceflight hardware is highly valued.
• Experience programming in C/C++ and Python.
• Experience using electrical and diagnostic tools such as oscilloscopes, logic analyzers, multimeters, and DC power supplies.
• Experience reading and interpreting circuit diagrams and schematics.
• Familiarity with version control systems (preferably Git).
• Comfort using command‑line tools in Linux or Windows environments.
• Excellent written and verbal communication skills.

Preferred Qualifications

• Understanding of Software‑in‑the‑Loop (SIL) and Hardware‑in‑the‑Loop (HIL) concepts.
• Ability to design simple PCBs for testing or custom hardware tasks.
• Familiarity with systems engineering verification and validation principles.
• Experience with MATLAB/Simulink.
• Experience with Speedgoat, dSPACE, or equivalent testing platforms.
• Knowledge of environmental health and safety requirements.
• Familiarity with grounding and ESD procedures.
• Experience working in lab or cleanroom environments.

Soft Skills

• Strong interpersonal skills and the ability to collaborate effectively within cross‑functional teams.
• Excellent written and verbal communication skills.
• Meticulous attention to detail to ensure accuracy in testing, documentation, and data reporting.
• Strong problem‑solving and analytical abilities.
• Ability to manage multiple tasks and support fast‑paced testing environments.
• Proactive mindset and willingness to learn new tools, techniques, and testing methods.

Technology Stack

• Programming: C/C++, Python
• Tools & Equipment: Oscilloscopes, logic analyzers, multimeters, DC power supplies
• Platforms: Linux and Windows
• Version Control: Git
• Additional Tools (preferred): MATLAB, Simulink, Speedgoat, dSPACE

Physical Requirements

• Ability to work in a standard office, lab, and test‑facility environment.
• Ability to use computers, engineering tools, and test equipment for extended periods.
• Ability to follow safety protocols, especially in lab and cleanroom settings.

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands. 

Software Simulation Engineer 

AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet – on land, at sea and in flight.

Summary:

AST SpaceMobile is looking to hire a Software Engineer for a software-in-the-loop (SIL) simulation group. The primary product, referred to as the dynamic spacecraft simulator (DSS), provides a testbed and integration environment for a wide variety of subsystems on our satellites, including navigation, payload, power, FDIR, and TT&C. The candidate will work as part of a team responsible for developing and ensuring the fidelity of a variety of C++-based software models, integrating software from other teams into the environment, driving integration testing between various subsystems, and further developing the overall simulation environment. The ideal candidate will be capable of both digging into the details of interface control documents (ICD) and making informed architectural decisions about large, distributed software systems.

Duties & Responsibilities:

• Contribute to the ongoing development of and maintenance of several generations of software-based spacecraft simulators
• Implement and add functionality to software models of hardware components
• Maintain and update simulation code as requirements and/or technologies change
• Collaborate with other engineering disciplines in planning, design, and development of simulation interfaces to ensure software and hardware performance and compatibility 
• Drive integration testing between different subsystems owned by diverse stakeholders—ability to debug complicated systems, and find working compromises between groups with divergent priorities

Minimum Qualifications: 

• At least 8-9 years of professional experience working with C++
• Proficient with modern C++, ideally C++17, and the C++ standard library
• Proficient at reading and modeling a system based on an ICD
• Familiar with CMake
• Proficient with Git
• Comfort with multi-process computing and distributed computing
• Comfort with GNU/Linux and common unix tools
• Some level of familiarity with concepts of embedded programming such as:
  • Serial interfaces
  • Registers
  • Timers
  • Cross-Compiling
• Ability to work in a remote, distributed team

Preferred Qualifications:   

1. Comfort with concepts of Embedded Software
2. Any experience with spacecraft or other real-time systems
3. Proficient with modeling physical components (e.g. battery charge, discharge, thermals)
4. Familiar with AWS
5. Proficient in Python
6. Proficient with bash/shell scripting

AST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed based on merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Position Overview

We are seeking an Associate Software Engineer to join our Flight Software team. In this role, you will contribute to the development, integration, and testing of core software systems supporting satellite operations. You will work across embedded software development and Linux‑based system engineering, supporting both flight software and simulation environments that enable system validation and mission readiness.

This position is well‑suited for an early‑career engineer with strong fundamentals in embedded systems and an interest in space‑based platforms, who thrives in a collaborative and fast‑paced engineering environment. 

Key Responsibilities

• Design, develop, and test embedded software components from initial concept through integration and deployment
• Support software development for mission‑critical systems, including integration with simulation and test environments
• Collaborate with cross‑functional teams to implement new features and enhancements across multiple subsystems
• Contribute to system‑level architecture discussions by reviewing interface documentation and technical specifications
• Participate in debugging, validation, and performance analysis of software across development and test stages
• Support integration, test, and verification activities throughout the software lifecycle
• Follow modern software development workflows, including version control, testing, and continuous integration 

Qualifications

Education

Bachelor’s degree in Computer Engineering, Computer Science, Electrical Engineering, or a related technical field 

Experience

A minimum of 1–3 years of experience in software development, embedded systems, or related engineering roles (internships and academic project experience may count toward this requirement) 

Preferred Qualifications

• Experience with embedded development on microcontroller‑based systems
• Familiarity with real‑time operating systems (RTOS)
• Exposure to Linux system administration or Linux‑based development environments
• Experience supporting integration, test, or validation activities
• Familiarity with build systems and automation tools (e.g., CMake, Make, Ninja)
• Experience working with continuous integration tools or automated testing frameworks

Soft Skills

• Strong interpersonal and collaboration skills, with the ability to work effectively in cross‑functional teams
• Excellent written and verbal communication skills, including the ability to clarify requirements and share technical updates
• Meticulous attention to detail to ensure accuracy in code, documentation, and deliverables
• Strong problem‑solving and analytical skills in complex technical environments
• Ability to manage multiple tasks and meet deadlines in a dynamic setting 

Technology Stack

• Programming Languages: C, C++, Python
• Embedded Systems & RTOS environments
• Linux operating systems and command‑line tooling
• Version control and workflow tools (e.g., Git, issue tracking systems)
• Debugging and development tools (e.g., hardware debugging interfaces, test equipment)
• Software development lifecycle tools supporting testing and continuous integration 

Physical Requirements

• Ability to work in a standard office or lab environment and use a computer for extended periods
• Ability to participate in hands‑on development or test activities as needed
• May occasionally require work in lab or integration environments with standard engineering equipment

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands.