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SES Satellites · 16 hours ago

(Senior) Engineer Thermal Payload, meoSphere

Long Beach, CA

Contract

Onsite

Mid, Senior Level

$110K/yr - $150K/yr

5+ years exp

SES Satellites is developing the next-generation Medium Earth Orbit (MEO) satellite constellation, meoSphere, aimed at delivering secure connectivity services. The Senior Engineer Thermal Payload will be responsible for the design, analysis, and validation of thermal structures and control systems for satellite payloads, ensuring thermal performance throughout the payload lifecycle.

Communications InfrastructureHardwareSatellite CommunicationTelecommunicationsWired Telecommunications

No H1B

U.S. Citizen Only

Responsibilities

Thermal Design & Architecture

+ Develop and implement thermal control strategies for payload components and subsystems, including passive and active solutions

+ Define thermal requirements based on mission profiles, environmental constraints, and system-level interactions

Agile Development Support

+ Collaborate closely with electronics, mechanical, and systems engineers in iterative design sprints

+ Rapidly integrate thermal feedback into design loops to support fast prototyping and testing cycles

Thermal Analysis & Simulation

+ Perform thermal modelling and simulations using tools such as ESATAN-TMS, Thermal Desktop, or ANSYS

+ Evaluate temperature distributions, heat flows, and thermal gradients under launch and orbital conditions

Test Planning & Execution

+ Define the thermal test approach for payload development

+ Analyze test data and correlate with simulation results to validate thermal models and refine designs

Reliability & Risk Assessment

+ Contribute to reliability engineering tasks such as thermal-related FMEAs and fault analysis

+ Identify thermal failure modes and propose mitigation strategies to ensure long-term payload performance

Documentation & Reviews

+ Prepare thermal design documentation, analysis reports, and test procedures

+ Participate in design reviews and provide expert input on thermal aspects of payload development

Qualification

Thermal DesignThermal AnalysisThermal Simulation ToolsThermal Testing MethodsMechanical EngineeringAnalytical SkillsCross-functional TeamworkDocumentation Skills

Required

Degree in Mechanical Engineering, Aerospace Engineering, or a related field with a focus on thermal systems

At least 5 years of experience in thermal design and analysis for space systems or high-reliability environments

Proficiency in thermal simulation tools and familiarity with space-grade materials and thermal interfaces

Experience with electrical PCBA thermal modelling and thermal interface materials (thermal grease, gap pads, etc.)

Hands-on experience with thermal testing methods and equipment, including TVAC

Strong analytical skills and ability to work effectively in cross-functional teams

Eligibility for ESA/EU/NATO/National SECRET personnel security clearances. Candidates must be prepared to undergo a security clearance procedure, as this position may require holding such clearance, is considered an asset

Able to travel nationally & internationally