As a GNC/AOCS Engineer at Spire, you will operate as part of a technical team who maintains responsibility across the full lifecycle of its engineering products. The GNC team interfaces directly with many engineering groups to conduct R&D, design, manufacturing, and operations activities, ultimately ensuring all current and future spacecraft systems satisfy their mission. 

Ideal candidates will embrace the commercialization of nanosatellite systems and adapt to low-cost, fast-paced systems design, development, and implementation methodologies that set Spire apart from our competition. In this fast-paced environment, the design to launch cycle is measured in weeks and months, not years!

What You’ll Do:

• Technical ownership of current and future spacecraft attitude and orbit control software and hardware.
• Design, model, analyze, integrate and operate attitude determination/estimation systems for small spacecraft.
• Develop and utilize spacecraft dynamics and control simulations, including 'hardware-in-the-loop'.
• Design, evaluate, select, qualify and implement flight sensors, including magnetometers, sun sensors, inertial measurement devices, infrared sensors, and/or star trackers.
• Design, evaluate, select, qualify and implement flight actuators, including magnetic torque elements, reaction wheels, and propulsion systems.
• Be hands-on in laboratory and manufacturing environments during testing, integration, and qualification of flight systems.
• Provide support and analysis for on-orbit operations of spacecraft attitude determination and control systems.
• Work with external contractors, manufacturers, and internal manufacturing staff to improve reliability, yield, performance, and cost of flight systems.

Key Skills:

• Extensive experience with a solid foundation in spacecraft attitude dynamics and control algorithms, with emphasis on practical application of knowledge.
• Have experience designing and/or implementing Kalman filters for attitude estimation.
• Experience with flight sensors for spacecraft attitude determination/estimation.
• Experience developing software using C/Python.
• Have experience or familiarity with the Linux development environment.
• Have experience working with external engineering contractors.

Preferred Skills:

• Experience writing flight software.
• Experience with C or C++ development for embedded systems.
• Experience with spacecraft design.
• Experience with spacecraft assembly, integration, and testing.
• Experience with spacecraft operations and maintenance.
• Experience identifying and resolving system anomalies.
• Experience creating and maintaining integration and test campaigns for attitude determination and control systems, including hardware and software.
  
  

Spire operates a hybrid work model, and this position will require you to work a minimum of three days per week in the office.
Access to US export-controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses—this is not something candidates need to have before applying. #LI-MI1

We are seeking an experienced Embedded Software Engineer to join our Platform team supporting Spacecraft Operations. The successful candidate will play a crucial role in supporting other disciplines by focusing on the embedded software aspects of our satellite systems. The Platform team interfaces directly with many engineering groups to conduct R&D, design, manufacturing, and operations activities, ultimately ensuring all current and future spacecraft systems satisfy their mission.

Ideal candidates will embrace the commercialization of nanosatellite systems and adapt to low-cost, fast-paced systems design, development, and implementation methodologies that set Spire apart from our competition. In this fast-paced environment, the design to launch cycle is measured in weeks and months, not years!

What You’ll Do as a Senior Embedded Software Engineer:

• Design, implement and test, deploy and maintain embedded firmware
• Collaborate with other engineering functions on scoping, architecture and system design
• Resolve on-orbit and on-ground issues related to embedded systems
• Implement, optimize and maintain various serial protocols
• Design and develop interface tools to improve abstraction between the embedded system and other satellite components 
• Debug and resolve complex embedded systems issues in a timely manner
• Write and maintain technical documentation

Key Skills: 

• Bachelor's degree in Computer Science, Electrical Engineering, or related field
• Mastery of Embedded C programming language
• Proficiency with scripting languages like Python and Bash
• Extensive experience with real-time operating systems (RTOS), specifically FreeRTOS
• Familiarity with serial protocols and implementations
• Strong problem-solving skills, particularly in debugging embedded systems
• Experience with version control systems (e.g., Git)
• Experience developing on Linux (Ubuntu)
• A base level of mathematical knowledge (engineering mathematic or similar)
• Excellent communication and teamwork abilities

Preferred Skills: 

• Experience with space systems or satellite technology
• Familiarity working to coding standards and using static analysis tools
• Experience writing Rust for resource constrained environments (embedded Linux)
• Experience with embedded Linux
• Knowledge of control systems and algorithms

Tools and Technologies:

• FreeRTOS for real-time operating system implementation
• GNU ARM Embedded Toolchain for code compilation
• GDB for debugging, complemented by extensive use of serial and/or CAN debugging
• Experience with debugging techniques for systems without JTAG access, particularly for remote issue resolution
• Familiarity with manual testing procedures for embedded interface code
• Experience working with Arm Cortex Microcontrollers
• Version control using Git

Spire operates a hybrid work model, and this position will require you to work a minimum of three days per week in the office.

Access to US export-controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses—this is not something candidates need to have before applying. #LI-RK1

We are looking for a Spacecraft Software Engineer (GNSS) to join our team working at the intersection of satellite payloads, scientific computing, and data delivery systems. In this role, you'll be responsible for developing and maintaining both the flight and ground software that powers our satellite-based GNSS missions. You’ll work across system layers—from embedded software to cloud data pipelines—to help ensure the accurate and timely delivery of mission-critical scientific data to our customers.   

This is a high-impact role where autonomy, creativity, and technical breadth are key.   

What You'll Do as a Senior Software Engineer:

• Develop and maintain scientific and command & control software for GNSS-based satellite payloads using a variety of software stacks.   

• Build and operate ground-based automation systems for efficient data extraction, transformation, and delivery from the satellite to end users.   

• Collaborate closely with flight operations to troubleshoot and ensure consistent, high-quality data delivery.   

• Engage with other system engineers, payload developers, and mission operators to continuously evolve the software in support of scientific objectives.   
• Participate in code reviews, testing, and documentation to uphold software reliability and traceability.   

Who You Are (Required Qualifications):

We're looking for someone with at least 5 of the following qualifications:   

• Proficient in at least one of C++ or Python, and capable of picking up new tools and languages as needed.   

• Experience in FPGA development (VHDL or HLS) for signal processing or control systems.   

• Solid background in DSP techniques and theory, especially in the context of RF or GNSS.   

• Familiarity with GNSS signal processing and/or scientific applications such as GNSS-RO, GNSS-R, or PNT algorithms.   

• Skilled in cloud-based systems (e.g., AWS), backend development, and managing data via scalable storage/database solutions.   

• A lifelong learner—curious, adaptable, and open to new challenges outside your immediate expertise.   

• Demonstrates strong work ethics and a focus on impactful contributions to the mission and team.   

• Capable of independently navigating technical challenges and making forward progress without constant direction.   

Preferred Skills:

• Prior experience working on satellite payloads or in the aerospace domain.   

• Experience building telemetry and data visualization tools.   

• Contribution to open-source scientific or aerospace-related software projects. 

Spire operates a hybrid work model, and this position will require you to work a minimum of three days per week in the office.

Access to US export-controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses—this is not something candidates need to have before applying. #LI-RK1

We are looking for a Spacecraft Software Engineer (GNSS) to join our team working at the intersection of satellite payloads, scientific computing, and data delivery systems. In this role, you'll be responsible for developing and maintaining both the flight and ground software that powers our satellite-based GNSS missions. You’ll work across system layers—from embedded software to cloud data pipelines—to help ensure the accurate and timely delivery of mission-critical scientific data to our customers.   

This is a high-impact role where autonomy, creativity, and technical breadth are key.   

What You'll Do as a Senior Software Engineer:

• Develop and maintain scientific and command & control software for GNSS-based satellite payloads using a variety of software stacks.   

• Build and operate ground-based automation systems for efficient data extraction, transformation, and delivery from the satellite to end users.   

• Collaborate closely with flight operations to troubleshoot and ensure consistent, high-quality data delivery.   

• Engage with other system engineers, payload developers, and mission operators to continuously evolve the software in support of scientific objectives.   
• Participate in code reviews, testing, and documentation to uphold software reliability and traceability.   

Who You Are (Required Qualifications):

We're looking for someone with at least 5 of the following qualifications:   

• Proficient in at least one of C++ or Python, and capable of picking up new tools and languages as needed.   

• Experience in FPGA development (VHDL or HLS) for signal processing or control systems.   

• Solid background in DSP techniques and theory, especially in the context of RF or GNSS.   

• Familiarity with GNSS signal processing and/or scientific applications such as GNSS-RO, GNSS-R, or PNT algorithms.   

• Skilled in cloud-based systems (e.g., AWS), backend development, and managing data via scalable storage/database solutions.   

• A lifelong learner—curious, adaptable, and open to new challenges outside your immediate expertise.   

• Demonstrates strong work ethics and a focus on impactful contributions to the mission and team.   

• Capable of independently navigating technical challenges and making forward progress without constant direction.   

Preferred Skills:

• Prior experience working on satellite payloads or in the aerospace domain.   

• Experience building telemetry and data visualization tools.   

• Contribution to open-source scientific or aerospace-related software projects. 

Spire operates a hybrid work model, and this position will require you to work a minimum of three days per week in the office.

Access to US export-controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses—this is not something candidates need to have before applying. #LI-RK1

As a GNC/AOCS Engineer - Avionics at Spire, you will operate as part of a technical team who maintains responsibility across the full lifecycle of the Spire GNC product and its subcomponents. The GNC team interfaces directly with many engineering groups to conduct R&D, design, manufacturing, and operations activities, ultimately ensuring all current and future spacecraft systems satisfy their mission. Ideal candidates will embrace the commercialization of nanosatellite systems and adapt to low-cost, fast-paced systems design, development, and implementation methodologies that set Spire apart from our competition. In this fast-paced environment, the design to launch cycle is measured in weeks and months, not years!  

What You’ll Do:  

• Design, evaluate, select, qualify and implement flight sensors, including magnetometers, sun sensors, inertial measurement devices, Earth sensors, and/or star trackers.
• Design, evaluate, select, qualify and implement flight actuators, including magnetic torque elements, reaction wheels, and propulsion systems.
• Design, implement and maintain simulation models for GNC subcomponents in our 6-DOF simulation environment.
• Technical ownership of current and future GNC avionics peripherals, supporting troubleshooting, design and updates to improve reliability and performance.
• Working closely with cross-functional teams, including hardware, software, and systems engineers, to integrate avionics solutions into the larger platform.
• Develop component qualification and acceptance processes and be hands-on in laboratory and manufacturing environments. 

Key Skills:   

• Experience with flight sensors for spacecraft attitude determination/estimation.
• Experience with actuators, including actuator sizing, modelling, design and integration.
• A solid foundation in spacecraft attitude dynamics and control algorithms, with emphasis sensor ingestions and actuator command calculation.
• Experience working hands-on with HW and familiarity with 'hardware-in-the-loop` simulation.
• Experience developing software using C/Python.
• Have experience or familiarity with the Linux development environment.
• Have experience working with external engineering contractors.  

Preferred Skills:  

• Experience writing flight software.
• Experience designing and/or implementing Kalman filters and feedback control for attitude estimation.
• Experience with C or C++ development for embedded systems.
• Experience with spacecraft design.
• Experience with spacecraft assembly, integration, and testing.
• Experience with spacecraft operations and maintenance.
• Experience identifying and resolving system anomalies.
• Experience creating and maintaining integration and test campaigns for attitude determination and control systems, including hardware and software.  

Spire operates a hybrid work model, and this position will require you to work a minimum of three days per week in the office.  

Access to US export-controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses—this is not something candidates need to have before applying. 

. #LI-MI