System Design Engineer
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Overview
Job Description
Position Summary
System One is seeking a System Design Engineer to support advanced nuclear reactor projects. This role focuses on system design, analysis, and supplier oversight, supporting complex fluid systems within a highly regulated environment.
The ideal candidate will act as a system-level engineer, working across multiple disciplines to develop, integrate, and refine system designs from concept through commissioning. This is a highly collaborative role within a high-performing team of engineers and scientists.
Responsibilities
- Design fluid systems from requirements development through final design and commissioning
- Perform technical trade studies to refine system performance and design decisions
- Oversee suppliers during development and fabrication of processing, filtration, and monitoring equipment
- Review component designs and assess impacts on overall system performance
- Develop system-level engineering documentation, including technical specifications and operational narratives
- Identify and resolve system integration issues across plant-level designs
- Support and participate in design reviews throughout the project lifecycle
- Develop and review technical documents such as System Design Descriptions (SDDs), Interface Control Documents (ICDs), and Engineering Design Specifications
- Generate complete design packages including calculations, reports, drawings, and specifications
- Coordinate development of P&IDs, 3D models, and system interface drawings
- Collaborate with cross-functional teams (mechanical, I&C, civil, nuclear) to define system requirements and performance criteria
- Support testing programs including planning, execution oversight, and evaluation of results
- Apply relevant design codes and standards including ASME BPVC and B31.3
Qualifications
- Bachelor’s degree in Mechanical, Chemical, Nuclear Engineering, or related field
- 5+ years of experience in system design or mechanical systems engineering
- Experience with piping systems and ability to read and develop P&IDs
- Experience working with suppliers on development and fabrication of equipment
- Strong understanding of applicable design codes (ASME, BPVC, API)
- Familiarity with system classifications (safety-related/non-safety-related)
- Experience with piping design and analysis
- Experience working within quality programs (NQA-1, AS9100, ISO 9001, or similar)
- Strong problem-solving skills with ability to manage competing priorities and constraints
- Excellent communication, technical writing, and collaboration skills
- High attention to detail and commitment to technical excellence
Preferred Qualifications
- Experience in nuclear, power generation, or other highly regulated industries
- Experience supporting system integration and plant-level design
- Familiarity with advanced reactor technologies
Work Environment
- Combination of office and engineering design work
- Standard work environment with extended periods of sitting and computer use
- Occasional lifting up to 25 lbs
- Travel required (10–20%)
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