Mechanical Engineer I – Thermal Design

Sierra Space

. Assist senior engineers in the analysis, design, and evaluation of mechanical systems and components .

Posted 10/9/2026full-timeCentennial • Colorado • United StatesJuniorMid-Level💰 $77,234 - $106,197 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates a foundational understanding of Mechanical Engineering principles and the ability to assist in the analysis, design, and evaluation of mechanical systems. Proficient in technical documentation and effective communication of technical concepts within cross-functional teams.

Highest-signal resume keywords

Mechanical Engineering PrinciplesTechnical DocumentationTeam CollaborationCAD Tools (NX, SolidWorks)Data Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mechanical Engineering PrinciplesData AnalysisTechnical DocumentationDesign MethodsAnalysis MethodsTest MethodsManufacturing ProcessesMaterial SciencesGD&TPropulsion Systems

Soft Skills

Clear CommunicationTeamworkProblem Solving

Tools & Technologies

NXSolidWorks

Industry Keywords

Mechanical SystemsStructural AnalysisEnvironmental SystemsTechnical StandardsEngineering Concepts

About the role

Key responsibilities & impact

Assist senior engineers in the analysis, design, and evaluation of mechanical systems and components
Collect and analyze data related to mechanical systems, propulsion, structures, structural analysis, or environmental systems
Contribute to resolving routine technical problems of limited scope and complexity
Prepare technical documentation and reports to communicate findings and support project objectives
Work effectively within cross-functional teams to achieve project goals and meet deadlines
Clearly communicate technical concepts and information verbally and in writing

Requirements

What you’ll need

Bachelor's degree in a related field (or equivalent work experience in lieu of degree)
Typically entry-level 0 - 2 years of experience
Basic understanding of Mechanical Engineering technical principles, standards, theories, and concepts
Basic application and use of technical principles, standards, theories, and concepts
Ability to help develop solutions to routine technical problems of limited scope and complexity
Ability to work in a team and follow guidance from senior engineers
Clear verbal and written communication of technical concepts and information
Internship or co-op experience in a mechanical engineering or related environment
Familiarity with design, analysis, and test methods related to mechanical systems, propulsion, structures, and/or environmental systems
Familiarity with engineering CAD tools such as NX, SolidWorks, or similar, including detail drawing standards and GD&T
Familiarity with manufacturing processes, material sciences, and their impact on mechanical systems

Benefits

Comp & perks

Medical, dental, and vision plans
401(k) with 150% match up to 6%
Life insurance
3 weeks paid time off
Personal and professional development opportunities
Collaborative work culture