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Salary
≈ $82k – $156k per year (Estimated)
Location
In office (Cerritos)
Seniority
Senior · 8+ years exp
Visa
H-1B filings in 12 months: 3

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Aug 20, 2026. Upwing Energy scores B on the Alion truth index.

Overview
Company
Impact
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The comprehensive responsibly sourced natural gas service enabled by subsurface compression. With Upwing End2End, you get 4 services in 1. Analysis & Predictions 2. Planning & Completions 3. Deployment & Startup 4. Operations & Monitoring.

The Senior Mechanical Engineer will be a member of our engineering team, supporting the design, build, test, and validation of our Subsurface Compressor Systems™ (SCS).  This position will require leadership and support of a broad range of product development and validation activities at the component, subsystem, and system levels.  This position requires a hands-on approach to problem solving as well as the use of closed form calculations for component design in high-speed rotating machinery applications. 

Essential Duties and Responsibilities: 

·       Generates 3D & 2D design solutions for Subsurface Compressor System technology and related components, including new designs and modification of existing designs

·       Design validation through bench-level testing and calculations

·       The Senior Mechanical Engineer will be an integral part of the Change Review Board Process as an approver of changes, design details, and dispositioning of hardware. 

·       Evaluation and Dispositioning of supplier Non-Conformances

·       Component and assembly troubleshooting by using production and test hardware.

·       Assist with first article builds of new designs by being a part of the assembly and test process.

·       Generates supporting documentation (e.g., drawings, engineering changes, layouts, engineering reports, test plans, specifications, P&IDs etc.)

·       Applies best manufacturing methods to the design including GD&T

·       Performing Peer drawing checks is a critical part of this position.

·       Conceptualizes new designs based on existing proven designs and innovations

·       Performs technical calculations in the areas of mechanical design and packaging of high-speed rotating machinery

·       Ensures timely and correct technical release of drawings to meet project schedules

·       Assists other project team members in cross-functional activities when necessary

·       Reviews drawings for completeness and accuracy

·       Applies critical thinking to all steps

·       Stack-Up analyses of assemblies

·       Manages assembly Bill of Materials and ensures its accuracy in PDM and ERP systems.

 

Skills, Experience, Education, and Abilities:

·       BS Degree in Mechanical Engineering is required

·       Minimum of 8 years of experience in an Engineering Role

·       3+ years of experience with Solidworks 3D modeling software

·       Strong knowledge of ASME Y14.5 geometric dimensioning and tolerancing including GD&T

·       Experience with designing Turbomachinery components such as bearings and seals is desired. 

·       Understanding of Electro-Mechanical design and component packaging

·       Proven capability towards maintaining technical ownership of the design

·       Proficient using hand calculations and FEA to validate design decisions.

·       Proficient using and creating closed-form calculations for hardware design

·       Experience in rotating machinery is desired

·       Experience with high-speed turbo machinery and/or permanent magnet motors is desired

·       Project management, coordination, and supervision skills is desired.

Intangibles Sought: 

·       Must be self-motivated and an independent worker

·       Able to meet aggressive schedules

·       Demonstrated ability to organize and manage multiple priorities

·       Strong written and oral communication skills

·       Demonstrates good interpersonal skills

·       Work well with team members

·       Enjoys hands-on work, taking units apart and rebuilding

Physical Demands / Work Environment:

This position will be mostly in an office atmosphere; however, the Senior Mechanical Engineer will be expected to support the build and test of products in the production area. Personal protective equipment should be worn in designated shop floor areas.

 

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