Long Beach, California, United States · On-site
$90k–$130k/yr
About Critical Loop Critical Loop is shaping the next generation of energy systems by building the integrated edge grid of the future. Specializing in advanced energy management and battery control systems, Critical Loop…
Skills: Hardware-In-The-Loop (HITL), Root Cause Analysis, Test Procedure Authoring, Python, Git
Long Beach, California, United States · On-site
$148k–$222k/yr
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 ju…
Skills: Electronics Design, Hardware Bring-up, eCAD, Altium, Design Verification
Long Beach, California, United States · On-site
$82k–$126k/yr
ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening acce…
Skills: RF Testing, EMI/EMC Testing, Test Automation, Vector Network Analyzers, Spectrum Analyzers
Long Beach, California, United States · On-site
$80k–$126k/yr
ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and more – all with the goal of opening acce…
Skills: Altium Designer, Schematic Capture, PCB Layout, Circuit Analysis, SPICE
Long Beach, California, United States · On-site
$144k–$233k/yr
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America an…
Skills: Fluid Systems Engineering, Technical Leadership, Thermal Control Systems, ECLSS, Propulsion Systems
Long Beach, California, United States · On-site
$138k–$196k/yr
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America an…
Skills: Fluid Systems Design, Thermal Management, Propulsion Systems, Environmental Control and Life Support, CAD
Long Beach, California, United States · On-site
$138k–$196k/yr
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America an…
Skills: Fluid Systems Design, Thermal Management, Propulsion Systems, Environmental Control and Life Support, CAD
Long Beach, California, United States · On-site
$144k–$233k/yr
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America an…
Skills: Fluid Systems Engineering, Technical Leadership, Thermal Control Systems, ECLSS, Propulsion Systems
Long Beach, California, United States · On-site
$111k–$151k/yr
Experienced Structure & Payload Design Engineer Company: The Boeing Company Boeing Global Services (BGS) is seeking an Experienced Structure and Payload Design Engineer to join our dynamic Spares Engineering Design team …
Skills: Structural Design, Payload Systems Design, CatiaV5, GD&T, Design Release Processes
Long Beach, California, United States · On-site
$105k–$170k/yr
Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. We specialize in ballistic missile defense and are developing Cyclops, a low-cost, mass-producible interceptor. …
Skills: Trajectory Analysis, Performance Assessments, 3-DOF/6-DOF Simulation, Monte Carlo Analysis, Range Safety Integration
Long Beach, California, United States · On-site
$111k–$151k/yr
Experienced Structure & Payload Design Engineer Company: The Boeing Company Boeing Global Services (BGS) is seeking an Experienced Structure and Payload Design Engineer to join our dynamic Spares Engineering Design team …
Skills: Structural Design, Payload Design, CatiaV5, GD&T, Design Release Processes
Long Beach, California, United States · On-site
$148k–$222k/yr
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 ju…
Skills: Electronics Design, Hardware Bring-up, Board-level Design, Altium, Design Verification
Long Beach, California, United States · On-site
$147k–$199k/yr
Propulsion Structures Engineering Manager Company: The Boeing Company Boeing Commercial Airplanes (BCA) Southern California Propulsion Systems Engineering team is seeking a First Line Mechanical and Structural Engineerin…
Skills: Propulsion Structural Analysis, Propulsion Design Engineering, Stress Analysis, Systems Engineering, Project Management
Long Beach, California, United States · Remote Solely
Join Our Team as a Work-From-Home Data Entry Research Panelist! Are you ready to earn money from the comfort of your own home? This exciting opportunity is perfect for anyone with a variety of skills and backgrounds – wh…
Skills: Data Entry, Typing, Research, Administrative Support, Customer Service
Long Beach, California, United States · On-site
Job Summary: Field Sampler/Technician wanted for a full-time position based in Long Beach, CA. This position will be responsible for sampling in the port and refinery environment, performing a variety of laboratory tests…
Skills: Field Sampling, Laboratory Testing, ASTM Standards, Data Documentation, Material Processing
Long Beach, California, United States · On-site
Psychologist Location: Long Beach, CA Schedule: Contracted Position Summary Make a difference in the lives of adults facing serious mental health challenges. Our Adult Inpatient Psychiatric Hospital is hiring a Licensed …
Skills: Clinical Assessment, Crisis Intervention, Diagnostic Evaluation, Individual Therapy, Group Therapy
Long Beach, California, United States · On-site
$138k–$196k/yr
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America an…
Skills: Fluid Systems Design, Thermal Management, Propulsion Systems, Environmental Control and Life Support, CAD (Siemens NX)
Long Beach, California, United States · On-site
$144k–$233k/yr
At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America an…
Skills: Fluid Systems Engineering, Technical Leadership, Thermal Control Systems, ECLSS, Propulsion Systems
Long Beach, California, United States · On-site
$79k–$107k/yr
Design and Analysis Engineer (Electronic Sys Design & Analy) Company: The Boeing Company The C-17 Development Hardware team is currently looking for a Design and Analysis Engineer to join their team in Long Beach, CA. Th…
Skills: Avionics Hardware Design, Requirements Analysis, Systems Design, Integration Testing, Flight Test
Long Beach, California, United States · On-site
$79k–$107k/yr
Design and Analysis Engineer (Electronic Sys Design & Analy) Company: The Boeing Company The C-17 Development Hardware team is currently looking for a Design and Analysis Engineer to join their team in Long Beach, CA. Th…
Skills: Avionics Hardware Design, Requirements Analysis, Systems Design, Integration Testing, Flight Test
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Design, build, and maintain hardware-in-the-loop (HITL) testbeds and production unit test processes. Lead root cause analysis on hardware failures to provide actionable feedback for product improvement.
Requires a Bachelor's degree in Electrical or Mechanical Engineering and hands-on experience designing and operating hardware test setups. Candidates must be proficient in root cause analysis and comfortable with software tools like Git and Python.
Critical Loop is shaping the next generation of energy systems by building the integrated edge grid of the future. Specializing in advanced energy management and battery control systems, Critical Loop empowers businesses and communities to seamlessly unite distributed energy resources for faster, more reliable, and affordable grid access. With deep expertise in grid modernization and a passion for creating resilient, responsive energy solutions, Critical Loop drives innovation at the intersection of technology and energy.
We are hiring Test Engineers to build our hardware test capability from the ground up. You will be the owner of our hardware-in-the-loop (HITL) infrastructure, production unit test process, and canary fleet procedures, building and maintaining each as the hardware test pipeline our reliability story is built on.
You will design and build the HITL testbeds, stand up the production unit test process, and own the canary fleet procedures that our hardware reliability story is built on. The test outcomes you produce will feed directly back into the hardware we ship to customers. This is a hands-on, on-site role working alongside the Operations and Product Development teams.
Design, build, and maintain hardware-in-the-loop (HITL) testbeds for Critical Loop's product line, starting with the CLB5100 and expanding to the CLB5020 and beyond
Develop and operate production unit test processes and procedures, ensuring issues are caught before units reach customer sites
Stand up and own canary fleet usage processes, tooling, and operational standards
Author and maintain test procedures, documentation, and standards as the source of truth for how Critical Loop validates hardware
Analyze test data and translate findings into actionable feedback that improves the hardware we ship
Lead root cause analysis on hardware failures and edge cases surfaced through testing, and stay with the problem until it is solved
Partner with engineering and field ops to align test infrastructure with deployment realities
Build the test engineering function from nothing and do not wait for process or tooling to exist before creating it
Hands-on experience designing, building, and operating hardware test setups — not only running existing ones
Demonstrated experience authoring test procedures and the operational standards around them with substantive contributions to the build and methodology
Strong root cause analysis skills, with the ability to drive complex hardware issues to ground in systems you own end to end
Willingness to engage with the software side of testing, including reading code, writing scripts, and committing to git repositories
Bachelor's degree in electrical engineering, mechanical engineering, or a related field, or equivalent practical experience
Comfortable operating as the test engineering function for a product line, setting your own priorities and managing your own work without an existing test organization to lean on
Direct experience with hardware-in-the-loop (HITL) testbeds and the trade-offs around fidelity, cost, and maintainability
Experience with data acquisition systems, sensors, DAQs, and logging or telemetry forwarding software
Familiarity with Python, git, and Linux
Background in power electronics or high-voltage systems
Background spanning both R&D and production environments
Work Authorization We are not able to offer visa sponsorship for this role. Candidates must be authorized to work in the United States without sponsorship now or in the future.
At Critical Loop, we're committed to rewarding and supporting our team. Our benefits package includes equity ownership through stock options, giving you a stake in our success, along with comprehensive health coverage (medical, dental, and vision) through an HRA with a generous allowance. We also provide a retirement savings plan and unlimited paid time off so you can recharge and maintain work-life balance.
Critical Loop is an equal opportunity employer. We're committed to building a diverse team and creating an inclusive workplace where everyone can thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected characteristic under applicable law.
Accelerating access to power
Founded in 2023, Critical Loop was born out of a mission to fix the electric grid. Today, we are making power more accessible and efficient by combining industry-leading, rapidly-deployable and scalable microgrids with advanced predictive software. We help customers operate at full capacity while lowering the cost of obtaining this power. Serving industries such as manufacturers, transportation hubs, data centers, and critical infrastructure, Critical Loop ensures reliable energy solutions wherever they are needed.
Offices: Long Beach, US · 4150 E Donald Douglas Dr, Long Beach, California 90808, US
Based on 362 listings with disclosed salaries, most science & research jobs in Long Beach, CA pay between $90k–$220k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 400 open science & research positions in Long Beach, CA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Rocket Lab, Relativity Space, Vast, True Anomaly, CSULB Economics, among others. Browse the listings above to see every active employer.
Yes — 37 of the 400 open science & research positions offer remote or hybrid work (10 remote, 27 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
