Principal Software Engineer

Sidus Space (NASDAQ: SIDU) is a space mission enabler providing flexible, cost-effective solutions, including satellite manufacturing and technology integration, AI-driven space-based data solutions, mission planning and management operations, AI/ML products and services and space and defense hardware manufacturing. With its mission of Space Access Reimagined , Sidus Space is committed to rapid innovation, adaptable and cost-effective solutions, and the optimization of space system and data collection performance. With demonstrated space heritage, including manufacturing and operating its own satellite and sensor system, LizzieSat , Sidus Space serves government, defense, intelligence and commercial companies around the globe.

Strategically headquartered on Florida's Space Coast, Sidus Space operates a 35,000-square-foot space manufacturing, assembly, integration and testing facility and provides easy access to nearby launch facilities. But it's our people who truly set us apart. We foster a culture of collaboration, continuous learning, and agility, empowering our team to innovate and evolve in a rapidly changing industry. Join us at Sidus Space to be part of something extraordinary and help shape the future of space access.

Job Summary

The Principal Software Engineer is responsible for leading the direction, execution, and staffing of all aspects of software architecture, development, and mission infrastructure at Sidus Space.

This position is expected to be 100% onsite. The selected candidate will be required to work onsite in Cape Canaveral, Florida.

Essential Duties and Responsibilities
•  Develop highly reliable software solutions based on the needs of the Engineering Team and the mission.
•  Ensure mission success by quickly devising and implementing software to solve unexpected issues that occur during ground testing or on-orbit.
•  Collaborate with Engineering Team on overall satellite system architecture and design.
•  Find efficient, reliable solutions to design challenges.
•  Build prototypes to prove key design concepts and qualifying technical constraints.
•  Testing systems for conformance to standards and specifications.
•  Lead software development and perform design and code reviews.
•  Verify compliance to applicable standards and other approved documentation.
•  Serve as the technical authority supporting projects to include the evaluation of newly developed approaches used to formulate programming or systems specifications.
•  Communicate professionally and effectively with internal and external customers.
•  Adhere to all Quality Management Systems standards and procedures.
•  Treat all team members with respect and dignity ensuring a collaborative culture is continually developed and maintained.
•  Other duties as assigned Required Education and Experience
•  Bachelor's degree in Computer Science, Engineering, Mathematics, or another relevant field preferred. Experience in lieu of education may be considered.
•  Ten (10+) years' experience in writing software in Rust, C/C /C and Python in Linux, Windows, and embedded environments, or other relevant industry experience.
•  Extensive knowledge of Linux embedded software development including Firmware Images, Linux kernel configuration modules, kernel drivers, and user-space drivers.
•  Experience leading successful engineering projects with respect to technical performance, staffing, and budget.
•  Experience designing large, interconnected software systems.
•  Experience in specifying and evaluating future computing hardware systems, including performance analyses and size, weight and power (SWaP) considerations.
•  Experience with DevSecOps, Git, Jira, and Confluence.
•  Experience with writing performance-critical software, including an understanding of architectural constraints and optimization techniques.
•  Expertise in writing concurrent software, including concepts such as asynchronous processing, multi-threading, multi-process, and MPC.
•  Proficiency in Microsoft 365 including Excel, Word, Outlook and Teams. Desired Skills and Experience:
•  At least 5 years of experience writing software for commercial space applications.
•  Expertise testing in Virtual Machines including VirtualBox and/or QEMU.
•  Familiarity with simulation and emulation.
•  Ability to implement drivers based on vendor descriptions.
•  Familiarity with RF concepts, including performance analyses as well as experience developing software defined radio (SDR) software.
•  Familiarity working with optical sensors and image processing techniques.
•  Experience working with, analyzing, and developing electronic schematics, including the use of tools such as SPICE or Altium.
•  Familiarity with hardware test, including the use of oscilloscopes, logic analyzers, spectrum analyzers.
•  Experience with common hardware interfaces, such as RS232, RS422, SPI, I2C, CAN, LVDS, SpaceWire.
•  Ability to read, understand, and modify large, existing code bases written in C/C .
•  Ability to multitask, prioritize tasks and projects, as well as manage time efficiently.
•  Ability to analyze problems, devise multiple potential approaches, and evaluate them to determine the best solution.
•  Familiarity with cyber security fundamentals and implementation.
•  Understanding of networking concepts; experience developing / implementing networked software.
•  Familiarity with highly dynamic systems, such as control, guidance and navigation.
•  Familiarity with FPGA design processes; ability to read, comprehend, modify, and/or create VHDL and Verilog logic.
•  Experience in establishing and using CI/CD pipelines.
•  Ability to collaborate with many different teams/individuals to reach a common goal by building mutual trust, respect, and cooperation, maintaining positive and professional relationships, and contributing to a culture of inclusion.
•  Commitment to providing the highest quality products and services that meet or exceed the requirements and expectations of our customer, actively pursuing opportunities for continual improvements in service quality. Physical Requirements
•  Stationary Work - occasionally exerting up to 10 pounds of force to transport objects, remaining mostly stationary, sometimes requiring moving about the work center on concrete surfaces
•  Computer Work - daily use of laptop, computer monitor screen, keyboard, and mouse, sometimes utilizing a headset with microphone & speakers. Travel Requirement
•  Able to travel Shift/Schedule

This position is onsite for the day shift, generally working 8:00am-5:00pm, or at least 40 hours/week.

Drug-Free Workplace

Sidus Space is a Drug-Free Workplace where post-offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria are met as outlined in our policies

Total Rewards and Perks :

At Sidus Space, we ask a lot of our team members, which is why we give so much in return. In addition to a competitive salary, a Best-in-Class benefit program with a generous employer paid portion as well as a matching 401(k) on Day ONE, we offer a lot of perks, including:
•  Jeans every day
•  Regular onsite food trucks
•  5 free company t-shirts for Manufacturing Staff
•  Paid Time Off - Up to 4 weeks of vacation, 5 sick days, and 11 paid holidays - 5 of which can be floated
•  Adjustable stand-up desks
•  Employee referral bonus program
•  Educational assistance and professional training opportunities
•  Company golf outings and other social events Additional Eligibility Qualifications
•  All candidates selected will be subject to background investigation and drug screen
•  This position requires access to onsite locations managing government information, which contains Not Releasable to Foreign Nationals (NOFORN) data. Therefore, to meet NOFORN requirements, you will have to provide proof of US Citizenship and attest that you do not have dual citizenship.
•  Must be able to perform the essential functions of the position satisfactorily and, if requested, reasonable accommodation will be provided to enable individuals with disabilities to perform the essential functions of their job, absent undue hardship.
SIDUS SPACE is an Equal Opportunity Employer fostering a respectful work culture that values all contributors. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. For more information on "EEO Is the Law," please visit

Affirmative Action and Disability Accommodation

Applicants wishing to receive information on Sidus Space' Affirmative Action Plans, or applicants requiring a reasonable accommodation in order to participate in the application and/or interview process, please contact us at