# Engineer II, Propulsion - Engine Performance (R5907)

**Company**: Shield AI
**Location**: Dallas, Texas
**Work arrangement**: onsite
**Experience**: mid
**Job type**: Full Time Employee
**Salary**: USD 94,000-142,000 per-year-salary
**Category**: Engineering
**Industry**: Technology

**Apply**: https://jobs.lever.co/shieldai/e53142de-6af2-474f-96fa-0ae652d6ce6a?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_e628ad0d-022

## Description

Shield AI is seeking a Propulsion Performance Engineer to own engine calibration and performance for the reciprocating engines that power the V-BAT platform.

This role serves as the technical owner for engine calibration strategy , driving test plans, ECU tuning, and performance analysis from bench through flight test , and is accountable for the torque, power, speed, and fuel efficiency characteristics the engine delivers across its full operating envelope.

Responsibilities:

- Support the engine calibration strategy by defining test plans, calibration methodology, and acceptance criteria across dynamometer, bench, and flight test campaigns.

- Perform ECU configuration and tuning (including fuel mapping, ignition timing, and injector phasing) to optimize engine performance, fuel efficiency, and reliability across the operating envelope.

- Analyze and deliver torque, power, and fuel consumption results, identifying calibration or hardware improvement opportunities and driving corrective action.

- Lead troubleshooting and root-cause investigations for engine testing for the development team and production teams.

- Reduce and interpret test and flight data to validate performance against requirements, closing gaps between design intent and measured behavior.

- Represent engine calibration and performance in design reviews, technical readiness checkpoints, and cross-functional discussions with design, controls, and flight test teams.

- Develop and maintain calibration documentation, procedures, and performance reporting to support program milestones.

- Support refinement of performance models for the propulsion system and the vehicle through targeted test campaigns and data review.

Required qualifications:

- Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline.

- 2-3 years of experience in a mechanical or aerospace engineering role, with a focus on engine performance or calibration.

- Deep hands-on experience with reciprocating (piston) engines.

- Demonstrated experience with electronically controlled fuel injectors and fuel injection systems.

- Proven experience with ECU configuration and engine calibration, including ownership of calibration decisions.

- Strong ability to analyze and interpret engine torque, power, and fuel consumption data to drive engine design, ECU calibration, and vehicle performance decisions.

- U.S. Citizenship or ability to comply with ITAR requirements.

Preferred qualifications:

- Podium finish in FSAE competition, with at least one first place trophy in any dynamic event.

- Background in air-cooled engines, particularly aviation two-stroke platforms.

- Experience with dynamometer test cells and associated data acquisition systems.

- Deep familiarity with fuel maps, ignition timing strategies, and closed-loop engine control logic.

- Proficiency in Python or MATLAB for data reduction and calibration tooling.

- Experience writing custom data analysis tools to automate engine performance analysis and calibration workflows.

- Experience supporting military propulsion systems, tactical aircraft, or high-performance aerospace platforms.

- M.S. or Ph.D. in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline.

## Skills

### Required
- Mechanical Engineering
- Aerospace Engineering
- Engine Performance
- Calibration
- ECU Configuration
- Fuel Injection Systems

### Nice to have
- Python
- MATLAB
- Dynamometer Test Cells
- Fuel Maps
- Ignition Timing Strategies
- Closed-loop Engine Control Logic

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Source: [Apply at jobs.lever.co](https://jobs.lever.co/shieldai/e53142de-6af2-474f-96fa-0ae652d6ce6a?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)