Embedded Software Engineer at Astro Digital – Littleton | Jobyssey

About Astro Digital

Astro Digital designs, builds, and operates a diverse range of small satellite systems supporting space-based turnkey missions for several business applications, including earth observation, communications, in-orbit demonstrations, risk reduction, science, and exploration. Astro Digital is headquartered in Littleton, Colorado with roughly 100 employees and infrastructure around the globe.

We move fast, deliver on time, and continuously improve systems in orbit and on the ground. We value engineers who take ownership, think in systems, and iterate toward robust solutions.

Position Summary

We are seeking an Embedded Software Engineer to develop low-level software that directly interfaces with hardware across spacecraft subsystems and supporting electronics.

This role is well-suited for an engineer with solid foundational experience who can operate independently on day-to-day tasks, while continuing to grow in system design and large-scale integration efforts with guidance from senior engineers.

Candidate will be expected to deliver working software quickly, contribute to hardware bring-up and debugging, and build a deeper understanding of how individual components interact within larger systems. This role is primarily on-site at our Littleton, Colorado headquarters or at our facility in San Jose, California, with limited remote work flexibility.

Primary Duties & Responsibilities

Develop and maintain embedded software for spacecraft subsystems, including sensors, actuators, power systems, and communication interfaces
Write and debug low-level drivers and board support code
Interface directly with hardware (SPI, I2C, UART, GPIO, DMA)
Support hardware bring-up and debugging using lab equipment and standard tools
Deliver working implementations quickly and iterate to improve reliability, performance, and maintainability
Debug embedded systems using tools such as GDB, JTAG, and SWD
Collaborate with cross-functional teams to define and refine system interfaces
Participate in integration, HIL testing, and system validation
Contribute to Python-based test, automation, and data analysis workflows

Minimum Qualifications

Bachelor’s degree in EE, CE, CS, or related field
5 years of embedded software experience
Proficiency in C and modern C++
Experience developing firmware in bare-metal or minimally abstracted environments
Strong understanding of:
Interrupt-driven design
Memory-mapped I/O and peripheral configuration
Timing and resource constraints
Experience writing low-level drivers and interfacing with hardware peripherals (SPI, I2C, UART, GPIO, DMA)
Ability to work from datasheets/reference manuals to configure and debug hardware
Experience debugging embedded systems using:
Software tools (e.G., GDB, JTAG/SWD)
Lab equipment (oscilloscope, logic analyzer, multimeter)
Familiarity with RTOS concepts (threads, scheduling, synchronization)
Exposure to embedded Linux development environments
Experience with Git-based workflows
Ability to execute well-scoped tasks independently and deliver reliable results

Preferred Qualifications

Experience developing firmware for resource-constrained microcontrollers in bare-metal environments
Comfort working at low levels of abstraction, including direct register manipulation and hardware bring-up
Experience with RTOS frameworks (e.G., Zephyr, FreeRTOS) and associated design trade-offs
Experience working across abstraction layers (bare-metal, RTOS, embedded Linux)
Familiarity with embedded Linux tools and workflows (e.G., cross-compilation, build systems)
Experience bringing up new hardware, including initialization and early-stage debugging
Experience optimizing firmware for memory, timing, or power constraints
Familiarity with ARM-based platforms (Cortex-M, Cortex-A) or similar
Experience with integration, HIL testing, or cross-subsystem debugging
Exposure to CI/CD or automated testing workflows

What We Value

Ownership of day-to-day work: Candidate reliably executes assigned tasks and follows issues through to resolution
Growth mindset: Candidate actively develops technical depth and takes on increasing responsibility over time
System-oriented thinking: Candidate seeks to understand how components interact within a larger system, including trade-offs and dependencies
Curiosity and critical thinking: Candidate asks “why” when appropriate—challenging assumptions, clarifying requirements, and improving designs
Bias toward action: Candidate delivers working solutions quickly and iterates based on testing and feedback
Collaboration: Candidate works effectively across disciplines and incorporates feedback from more experienced engineers

Pay Transparency

Astro Digital employees are provided with a comprehensive benefits package that includes company stock options, healthcare, 401k retirement plan, and PTO. The range of possible compensation for this role is $130k–$175k annually, depending on experience and alignment.

Physical Demands

This position may require lifting up to 20 lbs and occasional standing, bending, and working with lab equipment.

Export Statement

This position requires access to export-controlled commodities, technical data, technology, software, and services. U.S. citizenship, U.S. legal permanent resident status, or protected person status under 22 CFR §120.15 and 8 U.S.C. § 1324b(a)(3) is required.

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