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July 1, 2026

Senior Mixed Signal Electrical Engineer

Senior • On-site

140,004 - 180,000 USD/yr

Los Angeles, CA

A New Paradigm For Space Operations.

Who We Are

Drones have fundamentally changed the nature of conflict and maneuver. The next theater to be changed by drone technology is space. Space Kinetic is building a completely new architecture for space operations that brings the advantages of drone technology to space missions without relying on consumable fuel.

This role requires urgency, ownership, and a high level of commitment to building first-of-its-kind space technology.

Position Overview

The Senior Mixed Signal Electrical Engineer will design, build, and mature prototypes for core space technology systems. The role involves designing systems that process both analog and digital signals, bridging real-world sensor inputs with embedded processors, and developing signal conditioning circuitry, actuator controllers, and interfaces to power electronics.

The first project includes a custom motor controller with unprecedented power levels for space applications and an electromechanical system with novel energy recycling functions.

What You'll Do

  • Design, develop, and build electrical prototypes for core technology systems.
  • Refine and finalize prototype electrical designs for flight-readiness.
  • Create detailed schematics and perform component selection.
  • Apply tolerancing, design-for-manufacture principles, and documentation practices.
  • Support PCB layout design and coordinate fabrication and assembly vendors.
  • Integrate electrical systems into mechanical assemblies.
  • Verify and validate designs through testing, troubleshooting, debugging, and iteration.
  • Participate in design reviews and system-level engineering discussions.
  • Create and maintain BOMs, wiring diagrams, ICDs, and test procedures.
  • Drive each design iteration toward a flight-ready prototype.

What It Takes

Basic Qualifications

  • Bachelor's degree in electrical engineering or related STEM field.
  • Experience developing hardware for aerospace, defense, robotics, or similar applications.
  • Minimum 7 years of hands-on electrical engineering experience.
  • Experience designing analog circuitry and signal conditioning circuitry.
  • Experience designing digital circuitry and output drivers.
  • Experience with embedded systems.
  • Proficiency in circuit design, schematic creation, and component selection.
  • Experience with schematic and PCB design tools such as Altium.
  • Experience building and testing electrical systems or prototypes.
  • Strong understanding of electronics fundamentals and system integration.
  • Ability to troubleshoot circuits and debug hardware.
  • Hands-on experience with oscilloscopes, multimeters, power supplies, and logic analyzers.
  • Experience working with PCB fabrication and assembly vendors.
  • Ability to work in a fast-paced startup environment.
  • Ability to obtain or maintain a Government Security Clearance.

Preferred Qualifications

  • Minimum 9 years of electrical engineering experience.
  • Experience developing embedded systems and power electronics.
  • Experience with the C programming language.
  • Knowledge of field-oriented controls, microcontrollers, sensors, and power electronics.
  • Experience with environmental or functional testing.

Location

The position is on site in El Segundo, CA.

What We Offer

  • Competitive base salary and equity-based compensation
  • Highly competitive PTO and holiday calendar
  • Comprehensive medical, dental, and vision coverage
  • Performance-based bonus structure

ITAR Requirements

Applicants must meet ITAR eligibility requirements or be eligible to obtain required authorizations from the U.S. Department of State.

Equal Employment Opportunity

Equal employment opportunities are provided to all employees and applicants regardless of legally protected status.

Pay Range

$140,000 – $180,000 USD

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Long Beach, CA

14,917 - 20,083 USD/yr

🏢 Summary: Lead the development and delivery of space-ready avionics compute and storage systems for interplanetary spacecraft, driving next-generation in-space computing capabilities. The role focuses on designing, prototyping, and integrating high-performance compute hardware while balancing spacecraft constraints and collaborating closely with software and science teams. You will own end-to-end system development from concept through flight-ready hardware in a fast-paced, iterative environment. 🗂️ Requirements: Bachelor’s or Master’s degree in Electrical Engineering, Physics, or related field, 7+ years experience designing digital, compute-centric electronic systems, Experience leading design and delivery of complex electrical systems, Experience with RF and compute-heavy systems, Hands-on experience in thermal and electromechanical environments, Strong knowledge of systems engineering and interface management, Experience with risk management for complex technical programs 📃 Skills: ElectricalEngineering, Avionics, RF, CPU, GPU, TPU, EmbeddedSystems, DigitalElectronics, SystemsEngineering, ThermalAnalysis, EMI, HardwareIntegration, NonVolatileStorage, ComputeArchitecture, RadiationHardening 🏢 Description: At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.About the Team: The Interplanetary Sciences Program was established to expand access to scientific exploration across our solar system. Its mission is to make planetary research faster, more affordable, and more capable than ever before by rethinking how science missions are designed, built, and operated. The program aims to enable scientists to send instruments to distant worlds without decades of development or prohibitive costs. By creating a sustainable model for interplanetary exploration, we are transforming space science from an occasional event into a continuous process of discovery that accelerates knowledge, broadens participation, and inspires the next generation of explorers. About the Role: As the Avionics Systems Lead Engineer within the Interplanetary Program, you will own revolutionizing the next generation of in-space compute and storage capability by leveraging the latest terrestrial technologies and challenging the status quo of how high-capability compute and storage are done in the space sector. You will be responsible for delivering fully functional space-ready compute units to the flight spacecraft as well as setting up ground-based hardware twins for hardware in the loop and terrestrial based compute capability. You will be working closely with the science team to maximize capability by balancing the compute (CPU, GPU, TPU, etc..), memory, storage needs with the technical constraints of the flight spacecraft (power, thermal, EMI, mechanical, etc…). This role will also work closely in conjunction with the software team to bring up the core software infrastructure both on the spacecraft and on the ground side, and iterating with the software team to ensure the full compute system operates as intended in all environments. This role will be a high responsibility, high autonomy, and high accountability role within a fast-paced, iterative environment, where rapid prototyping, early testing, and continuous learning are key to success. You’ll lead hands-on development campaigns to evaluate key technologies, derisk interfaces, and validate performance before full system integration. You’ll also work across internal and external teams to turn concepts into hardware, balancing agility and rigor as you move quickly from analysis to prototypes to flight-ready systems. About You: Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related technical field 7+ years designing and delivering digital, compute-centric electronic systems Proven experience leading design and delivery of complex electrical systems, including RF and compute-heavy projects Hands-on work with challenging thermal and electromechanical environments Strong grasp of systems engineering, interface management, and risk management principles for complex programs Excellent technical communication, problem-solving, and cross-disciplinary collaboration skills Nice to haves but not required: Direct architecture or EE design experience with non-volatile storage, mobile compute, and/or server class computing is a plus Experience with compute and storage survivability in space and radiation environments is a plus Hiring Range and Leveling:Senior Engineer: $166,500 - $203,500 USDStaff Engineer: $197,000 - $241,000 USDLeveling and compensation will be finalized after the interview process, based on an evaluation of job-related knowledge and skills, education, and experience.At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.Hiring Range:$179,000—$241,000 USDWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Technology

Relativity Space

Power Systems Engineer I – Test & Launch

Junior

On-site

Stennis Space Center, MS

95,000 - 131,000 USD/yr

🏢 Summary: Electrical Engineer responsible for defining, designing, and managing electrical power distribution systems supporting rocket engine and stage test facilities. The role includes leading utility construction, maintaining AC distribution systems, and overseeing commissioning and troubleshooting for test complexes. You will collaborate across technical teams and manage contractors to ensure reliable power infrastructure for launch vehicle testing. 🗂️ Requirements: Bachelor’s degree in Electrical Engineering or related field, Minimum 1 year experience with electrical power systems, Experience in electrical analysis, design, field work, or project execution, Familiarity with NFPA 70 (NEC), Experience with AC power distribution systems, Ability to manage electrical construction activities 📃 Skills: ElectricalEngineering, ACPower, PowerSystems, ElectricalDistribution, NFPA70, NEC, AutoCAD, Bluebeam, EasyPower, ArcFlash, BreakerCoordination, SingleLineDiagrams, Commissioning, Troubleshooting, ConstructionManagement 🏢 Description: At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.About the Team: The Stennis Test team designs, builds, and operates Relativity’s propulsion and stage test stands. Team members are hands-on with large-scale, complex systems including fully integrated engines and stage assemblies, pushing hardware to the limits and directly contributing to flight readiness. The work is fast-paced and highly operational, ideal for those with backgrounds in aviation, automotive, manufacturing, offshore operations, industrial systems, construction, or adjacent industries. You’ll work in a close-knit, dynamic environment where collaboration between technicians, operators, and engineers is not only encouraged, but expected. As the company scales, the Stennis Test team becomes even more critical to unlocking our next phase of growth: proving out full-stage systems and paving the way for routine, reliable flights of Terran R. About the Role: Serve as an Electrical Engineer connecting various internal technical teams to define electrical requirements and develop solutions on a wide variety of projects. Act as the owner’s representative to external consultants, contractors, and government agencies. Manage electrical utility construction activities for test stand facilities, including developing conceptual drawings/designs, requests for proposals, competitive bidding, bid evaluations, subcontractor selection, and subcontractor management for Stennis Space Center sites and other facilities across Relativity’s real estate portfolio. Maintain and troubleshoot the existing electrical distribution system, including developing maintenance and testing procedures for all AC power distribution equipment. Lead the design of electrical distribution systems for the Terran R and A2 test complexes. Manage day-to-day construction activities in coordination with the project manager for the Terran R test complex. Oversee commissioning and maintenance of systems and equipment. Support and troubleshoot AC power requests for Stennis Space Center facilities. About You: Bachelor’s degree in Electrical Engineering or a related engineering field. Minimum of 1 year of experience working on electrical power systems. Familiarity with NFPA 70 (NEC). Experience in at least one of the following areas: analysis/design, hands-on field work, project management, or project execution. Nice to Haves (Not Required): Experience with the design and operation of aerospace test infrastructure. Ability to manage multiple projects simultaneously. Background in construction, commissioning, operations, troubleshooting, or maintenance of low-voltage power systems. Experience with electrical distribution design, hazard classification, single-line diagrams, breaker coordination, arc flash analysis, bid solicitation, contractor selection, construction management, permitting, and QA/QC. Engineering Intern (EI) or Professional Engineer (PE) certification in Power. Proficiency with AutoCAD or Bluebeam. Experience with electrical power system analysis software (preferably EasyPower). Familiarity with NFPA 70E or NESC. Experience purchasing electrical hardware and materials. At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.Hiring Range:$95,000—$131,000 USDWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Technology

Relativity

Power Systems Engineer I – Test & Launch

Junior

On-site

Stennis Space Center, MS

95,000 - 131,000 USD/yr

🏢 Summary: Electrical Engineer role supporting the design, construction, maintenance, and troubleshooting of electrical power distribution systems for rocket propulsion and stage test facilities. The position involves leading electrical utility projects, managing contractors, and ensuring reliable AC power systems for test complexes. This role directly contributes to flight readiness by developing and operating critical test infrastructure. 🗂️ Requirements: Bachelor’s degree in Electrical Engineering or related field, Minimum 1 year experience with electrical power systems, Familiarity with NFPA 70 (NEC), Experience in electrical analysis or design or field work or project management or project execution, Ability to manage electrical construction activities, Experience maintaining and troubleshooting AC power distribution systems 📃 Skills: Electrical, Power, AC, NFPA, NEC, AutoCAD, Bluebeam, EasyPower, ArcFlash, Coordination, Commissioning, QAQC, NESC 🏢 Description: At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.About the Team: The Stennis Test team designs, builds, and operates Relativity’s propulsion and stage test stands. Team members are hands-on with large-scale, complex systems including fully integrated engines and stage assemblies, pushing hardware to the limits and directly contributing to flight readiness. The work is fast-paced and highly operational, ideal for those with backgrounds in aviation, automotive, manufacturing, offshore operations, industrial systems, construction, or adjacent industries. You’ll work in a close-knit, dynamic environment where collaboration between technicians, operators, and engineers is not only encouraged, but expected. As the company scales, the Stennis Test team becomes even more critical to unlocking our next phase of growth: proving out full-stage systems and paving the way for routine, reliable flights of Terran R. About the Role: Serve as an Electrical Engineer connecting various internal technical teams to define electrical requirements and develop solutions on a wide variety of projects. Act as the owner’s representative to external consultants, contractors, and government agencies. Manage electrical utility construction activities for test stand facilities, including developing conceptual drawings/designs, requests for proposals, competitive bidding, bid evaluations, subcontractor selection, and subcontractor management for Stennis Space Center sites and other facilities across Relativity’s real estate portfolio. Maintain and troubleshoot the existing electrical distribution system, including developing maintenance and testing procedures for all AC power distribution equipment. Lead the design of electrical distribution systems for the Terran R and A2 test complexes. Manage day-to-day construction activities in coordination with the project manager for the Terran R test complex. Oversee commissioning and maintenance of systems and equipment. Support and troubleshoot AC power requests for Stennis Space Center facilities. About You: Bachelor’s degree in Electrical Engineering or a related engineering field. Minimum of 1 year of experience working on electrical power systems. Familiarity with NFPA 70 (NEC). Experience in at least one of the following areas: analysis/design, hands-on field work, project management, or project execution. Nice to Haves (Not Required): Experience with the design and operation of aerospace test infrastructure. Ability to manage multiple projects simultaneously. Background in construction, commissioning, operations, troubleshooting, or maintenance of low-voltage power systems. Experience with electrical distribution design, hazard classification, single-line diagrams, breaker coordination, arc flash analysis, bid solicitation, contractor selection, construction management, permitting, and QA/QC. Engineering Intern (EI) or Professional Engineer (PE) certification in Power. Proficiency with AutoCAD or Bluebeam. Experience with electrical power system analysis software (preferably EasyPower). Familiarity with NFPA 70E or NESC. Experience purchasing electrical hardware and materials. At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.Hiring Range:$95,000—$131,000 USDWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Technology

Relativity Space

Staff Avionics Hardware Engineer

Senior

On-site

Long Beach, CA

14,583 - 20,083 USD/yr

🏢 Summary: Staff Avionics Hardware Engineer role focused on leading the design, development, integration, and flight qualification of spacecraft avionics systems for deep-space missions. The position involves owning avionics architecture from concept through production and collaborating cross-functionally to deliver reliable, high-performance hardware. The engineer will define technical standards and support the growth of interplanetary avionics capabilities. 🗂️ Requirements: Bachelor's or Master's degree in Aerospace Engineering, Electrical Engineering, or related field, 6+ years of experience in avionics or aerospace electronics design, Experience delivering avionics systems from concept to production, Hands-on experience with schematic capture and PCB layout, Experience with embedded software interfaces, Experience with system-level testing and verification, Ability to lead avionics hardware builds, Experience working in cross-functional engineering teams 📃 Skills: PCB, Schematic, Embedded, Avionics, Electronics, Aerospace, Verification, Integration, Testing, Hardware, Architecture, Harnessing 🏢 Description: At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.About the Team: The Interplanetary Sciences Program was established to expand access to scientific exploration across our solar system. Its mission is to make planetary research faster, more affordable, and more capable than ever before by rethinking how science missions are designed, built, and operated. The program aims to enable scientists to send instruments to distant worlds without decades of development or prohibitive costs. By creating a sustainable model for interplanetary exploration, we are transforming space science from an occasional event into a continuous process of discovery that accelerates knowledge, broadens participation, and inspires the next generation of explorers. About the Role: As a Staff Avionics Hardware Engineer within the Interplanetary Program at Relativity Space, you will take ownership of the design, development, and delivery of spacecraft avionics systems from concept through flight. You will collaborate with multidisciplinary teams to create reliable, high-performance avionics that enable deep-space exploration. This position requires a highly motivated engineer who thrives in a fast-paced environment and can execute with autonomy. You will help define the foundation of Relativity’s future interplanetary avionics architecture while setting the technical standards for future team growth. Essential Duties and Responsibilities: Develop complete avionics systems, including architecture, design, integration, and verification, from initial concept through flight-qualified hardware Collaborate with propulsion, guidance and control, thermal and software teams to ensure seamless integration and performance of avionics systems Implement robust design and test processes that ensure reliability and safety for deep-space missions Lead the technical execution of avionics hardware builds, including PCB design, harnessing, embedded systems, and environmental qualification Coordinate with suppliers and internal stakeholders to manage component selection, testing, and delivery schedules Maintain accurate design documentation, test plans, and reports, demonstrating strong communication and organizational skills About You: Bachelor's or Master's degree in Aerospace Engineering, Electrical Engineering, or a related technical field 6+ years of experience designing, developing, and delivering avionics or electronics for aerospace systems or similarly complex environments Demonstrated ability to take a design from concept through production with minimal supervision Hands-on experience with schematic capture, PCB layout, embedded software interfaces, and system-level testing Proven track record of working cross-functionally and communicating technical information clearly to diverse audiences Ability to work effectively in a collaborative, fast-paced team environment, demonstrating adaptability and problem-solving skills Nice to haves but not required: Direct technical experience in Mars missions is a plus Experience with NASA aerospace systems engineering practices in an applied / new-space manner is a plus Experience with deep-space or high-radiation avionics systems Background in spaceflight hardware environmental testing and qualification At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.Hiring Range:$175,000—$241,000 USDWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Technology

Relativity

Staff Avionics Hardware Engineer

Senior

On-site

Long Beach, CA

14,583 - 20,083 USD/yr

🏢 Summary: Staff Avionics Hardware Engineer role focused on leading the end-to-end design, development, integration, and flight qualification of spacecraft avionics systems for deep-space missions. The position involves defining avionics architecture, executing hardware builds, and ensuring reliable, high-performance systems for interplanetary exploration. The engineer sets technical standards and collaborates cross-functionally to deliver flight-ready hardware. 🗂️ Requirements: Bachelor’s or Master’s degree in Aerospace Engineering, Electrical Engineering, or related field, 6+ years of experience in avionics or aerospace electronics development, Experience delivering avionics systems from concept to production, Hands-on experience with schematic capture and PCB layout, Experience with embedded software interfaces, Experience with system-level testing and verification, Ability to lead hardware builds including PCB design and harnessing, Experience with environmental qualification of aerospace hardware 📃 Skills: Avionics, PCB, Schematic, Embedded, Electronics, Aerospace, Integration, Verification, Testing, Harnessing, Architecture, Hardware 🏢 Description: At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.About the Team: The Interplanetary Sciences Program was established to expand access to scientific exploration across our solar system. Its mission is to make planetary research faster, more affordable, and more capable than ever before by rethinking how science missions are designed, built, and operated. The program aims to enable scientists to send instruments to distant worlds without decades of development or prohibitive costs. By creating a sustainable model for interplanetary exploration, we are transforming space science from an occasional event into a continuous process of discovery that accelerates knowledge, broadens participation, and inspires the next generation of explorers. About the Role: As a Staff Avionics Hardware Engineer within the Interplanetary Program at Relativity Space, you will take ownership of the design, development, and delivery of spacecraft avionics systems from concept through flight. You will collaborate with multidisciplinary teams to create reliable, high-performance avionics that enable deep-space exploration. This position requires a highly motivated engineer who thrives in a fast-paced environment and can execute with autonomy. You will help define the foundation of Relativity’s future interplanetary avionics architecture while setting the technical standards for future team growth. Essential Duties and Responsibilities: Develop complete avionics systems, including architecture, design, integration, and verification, from initial concept through flight-qualified hardware Collaborate with propulsion, guidance and control, thermal and software teams to ensure seamless integration and performance of avionics systems Implement robust design and test processes that ensure reliability and safety for deep-space missions Lead the technical execution of avionics hardware builds, including PCB design, harnessing, embedded systems, and environmental qualification Coordinate with suppliers and internal stakeholders to manage component selection, testing, and delivery schedules Maintain accurate design documentation, test plans, and reports, demonstrating strong communication and organizational skills About You: Bachelor's or Master's degree in Aerospace Engineering, Electrical Engineering, or a related technical field 6+ years of experience designing, developing, and delivering avionics or electronics for aerospace systems or similarly complex environments Demonstrated ability to take a design from concept through production with minimal supervision Hands-on experience with schematic capture, PCB layout, embedded software interfaces, and system-level testing Proven track record of working cross-functionally and communicating technical information clearly to diverse audiences Ability to work effectively in a collaborative, fast-paced team environment, demonstrating adaptability and problem-solving skills Nice to haves but not required: Direct technical experience in Mars missions is a plus Experience with NASA aerospace systems engineering practices in an applied / new-space manner is a plus Experience with deep-space or high-radiation avionics systems Background in spaceflight hardware environmental testing and qualification At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.Hiring Range:$175,000—$241,000 USDWe are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.