Senior Reactor Systems Engineer — Operator‑Focused & High Impact
Radiant System
Radiant, an El Segundo, CA-based startup, seeks a Senior Reactor Systems Engineer to design and implement mission‑critical procedures for reactor operators handling our nuclear microreactor technology. You will bridge engineering, operations, and human factors to translate complex hardware and software into executable, compliant procedures for RO/SRO operations. This role also offers hands‑on RO experience and influence on operational software and future reactor design. #J-18808-Ljbffr Radiant System
- Radiant is seeking a Senior Reactor Systems Engineer based in El Segundo, California, to design mission-critical procedures for nuclear microreactor technology. The role combines engineering, operations, and human factors to enhance operational efficiency and safety. Candidates...SeniorFlexible hours
$133.5k - $184.8k
...company’s first reactor, Kaleidos, is a... ...modern software engineering to rapidly deliver... ...are seeking a Senior Reactor Systems Engineer to design... ...for reactor operators managing our groundbreaking... ...factors in a highly technical and... ...people for impact and invests in those...SeniorFull timeSummer workImmediate startRemote workFlexible hoursWeekend work- Radiant Industries is looking for a Senior Reactor Systems Engineer to design and implement procedures for... ...This role bridges engineering with operations in a fast-paced environment,... ...requires 4+ years of relevant experience, focusing on compliance with regulatory standards...SeniorFlexible hours
$162k - $241.5k
...experienced ESS Terminals Senior Systems Engineer to join our team in... ...Terminals – either operationally or with prior... ...who will thrive in a highly collaborative work environment... ..., we support mission-focused defense and space... ...that have real-world impact. Our teams work collaboratively...SeniorFull timeFor contractorsWork at office$110k - $161k
...Logic is seeking a Senior Sustainment Systems Engineer to support a mission-focused effort in the Colorado... ...solutions that enhance operational performance and directly... ...who will thrive in a highly collaborative work environment... ...mission‑focused, high‑impact results Provide...SeniorFull timeWork at officeWorldwide$170k - $210k
...Job Description Senior Electrical Engineer - Lead High-Speed Hardware Design... ...developing next-generation systems that combine... ...that directly impact product performance... ...stage engineering team focused on building high-performance... ...scale. The company operates at the intersection...SeniorFlexible hours$130k - $180k
...by solving complex operational and engineering challenges. We are seeking... ..., collaborative Senior Systems Engineer to support... .... You’ll work in a high-paced environment... ...supporting mission-focused customer environments... ...innovation, and mission impact. Work Environment...SeniorFull timeTemporary workFor contractorsLocal areaRemote workFlexible hours- ...seeking a versatile Senior Systems Engineer with experience in thermal... .... This role focuses on system-level modeling... ...efficiency, and cost impacts Support the integration... ...engineering or highly related role, with a... ...knowledge of the design and operation of heat exchangers...SeniorImmediate startFlexible hours
$117.3k - $226.9k
## Space Systems Engineer/Senior Space Systems EngineerApplylocations... ...expertise. As the operator of a federally funded... ...customer programs, with a focus on the intelligence... ...group* Establishing high-performing teams with... ...Change* Engage with Impact* Foster Innovation*...SeniorFull timeFor contractorsWork at officeImmediate startRemote workRelocation packageFlexible hours- Decisive Point is seeking a Senior Reactor Systems Engineer in El Segundo, CA to design and implement critical procedures for our nuclear microreactor... ...collaboration with a multidisciplinary team to ensure operational safety and compliance with DOE and NRC standards. The...SeniorFlexible hours
$170k - $220k
...Job Description Senior Thermal Systems Engineer - Advanced Energy Hardware... ...that directly impacts system efficiency, power... ...analysis, and validation of high-performance heat exchange systems operating in demanding thermal... ...technology company focused on developing...Senior- United States Digital Space LLC is seeking a Sr. Full Stack Engineer for Internal Systems to help build mission-critical software used across our... ..., accelerating launch vehicle production and Starlink operations. You will own software engineering from architecture to deployment...Senior
$86.8k - $198k
Systems Engineer, SeniorThe Opportunity: Are you looking for an opportunity to combine your technical... ...with big picture thinking to make an impact on national security space missions?... ...integral part of delivering a customer-focused engineering solution. If this sounds...SeniorFull timeContract workPart timeFor contractorsWork at officeLocal areaRemote work$165k - $230k
...developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.SR. HIGH PERFORMANCE COMPUTING (HPC) SYSTEMS ENGINEER SpaceX is looking for an HPC Systems Engineer with strong knowledge and experience in a world class engineering...SeniorPermanent employmentTemporary workFlexible hoursWeekend work- ...The R&D centers we operate for the government create lasting impact in fields as... ...difference with us.The Systems and Operations Department... ...MITRE’s Systems Engineering Division in the... ..., mission-focused solutions using a... ...Department is seeking a Senior Systems Engineer to...SeniorWork experience placementInternshipLocal areaImmediate start
$150k - $200k
...aircraft during standard flight operations, inclement weather, and... ...joy and freedom of flight.SENIOR SYSTEMS TEST ENGINEER - EL SEGUNDO, CAAs a Sr. Systems... .... In this role, you’ll focus heavily on... ...systems test activities in a high-tempo work environment, ensuring...SeniorFull timeWork at office$158k - $219.45k
...company’s first reactor, Kaleidos, is a... ...modern software engineering to rapidly deliver... ...is seeking a highly motivated Senior Mechanical Engineer... ...Kaleidos fluid systems from preliminary... ...an instrumental impact of fueling the first... ...designing and operating test stands....SeniorFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$158k - $219.45k
...The company’s first reactor, Kaleidos, is a 1-megawatt... ...modern software engineering to rapidly deliver... ...Radiant is seeking a Senior Thermofluids Systems Engineer, Power... ...customer .You will define operating points that balance... ...people for impact and invests in those...SeniorFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$129.7k - $158.4k
...Epirus Epirus is a high-growth technology... ...software-defined system built using... ...candidate for the Senior Systems Engineer position is someone... ...specifications). You will focus on typical... ...modeling and operational analysis, are properly... ...and quick-turn impact analyses to facilitate...SeniorPermanent employmentWork at office$150k - $200k
...named Aether Aerospace focused on delivering high-impact technologies, technology... ...Force programs, digital engineering, systems integration, and specialized... ...combined organization operates as a multi-entity... ...Our client is seeking a Senior Systems Engineer with relevant...SeniorPermanent employmentFull timeContract workWork experience placementImmediate start$169k - $216k
...built, designed, and operated by Varda in-house, including... ...) The Avionics Systems team has a... ...collaboration with various engineering teams, where you will... ...engineering best practices, focusing on increased test automation... ...well‑being, and a high‑quality workplace...SeniorPermanent employmentFull timeImmediate startRelocation packageFlexible hours$93k - $133k
...experience in endpoint engineering, systems administration, or senior IT support in an... ...deliver patient, high-touch support to executive... ...and critical operations staff. We are organized... ...solutions firm focused on healthcare IT,... ...to make a visible impact every day. last...SeniorFull timeWork at officeLocal areaRemote work$200k
A leading law firm in Beverly Hills is seeking a Senior Associate Attorney to manage high-profile employment law cases. The ideal candidate will have over... ...team dedicated to innovative legal battles that impact the lives of workers and consumers. #J-18808-Ljbffr Law...SeniorWork at office- ...IESE Solutions is seeking an experienced Senior Ground Segment Systems Engineer to support to the US Space Force (USSF)... ...growing small engineering firm, IESE Solutions focuses on people and customers and delivery of uninterrupted high-quality work. Our approach to attracting...SeniorTemporary workWork experience placementFlexible hours
$170k - $220k
...Title: Senior Systems Engineer Belong. Connect. Grow. with KBR! KBR'... ...Security Solutions team provides high-end engineering and... ...work will have a profound impact on the country's most critical... ...of engineering, logistics, operations, science, program management...SeniorTemporary workFor contractorsLocal areaRelocation packageFlexible hours$110.4k - $193.5k
...expertise. As the operator of a federally funded... ...ground, and cyber systems for defense, civil... ...Systems Engineer to support the Communication... ...and affordable high-performance communications... ...be Successful – Senior Member of... ...Change Engage with Impact Foster...SeniorFull timeWork at officeImmediate startRemote workRelocation packageFlexible hours$86.8k - $198k
...technical skills with big‑picture thinking to impact national security space missions? You... ...integral part of delivering a customer‑focused engineering solution. If this sounds like you, join... ...the ground branch, ensuring the ground system is integrated successfully to meet user...SeniorFor contractorsWork at officeLocal area$162k - $203k
## ESS Terminals Senior Systems EngineerApplylocations: El... ...Terminals Senior Systems Engineer***Belong. Connect.... ...Solutions team provides high-end engineering and advanced... ...will have a profound impact on the country’s most... ...Terminals - either operationally or with prior...SeniorFor contractorsWork at office- ...visionary design and build firm in California seeks a Senior Facade Design Engineer with over 5 years of experience to manage complex... .... Ideal candidates have a deep knowledge of high-performance glazing systems and possess a commitment to precision and quality....Senior
$130k
...have SCI eligibility Where you make an impact: For this opportunity, we are seeking a highly motivated, team-oriented Senior Systems Engineer . This exciting position will have the... ...provide specialized engineering, analysis, operations support, and subject matter expertise...SeniorFull timeFor contractorsWork at officeRemote workWork from homeFlexible hours
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