Mechanical Design Engineer III
Confirmed on the employer's own hiring board on Nov 8, 2026. First seen by Alion on Sep 8, 2026. Senior scores B on the Alion truth index.
Who is Senior plc?
Senior plc is an international, market-leading, engineering solutions provider with 19 operating businesses in 11 countries. Traded on the London Stock Exchange, Senior designs and manufactures high-technology components and systems for the worldwide aerospace, defense, land vehicle and power & energy markets.
Senior Aerospace SSP, a division of Senior plc, is the world’s largest aerospace high-pressure ducting system supplier. Starting as ‘Stainless Steel Products’ in 1945, and acquired by Senior plc in 1995, we are vertically integrated with our own foundry, fabrication shop, and ISO-certified engineering lab, allowing us to design, manufacture, and qualify complex ducting systems for space launch, defense, and commercial aerospace applications worldwide.
Our global values underpin what we do, and how we do it …
Safety - Integrity - Customer Focus - Respect & Trust - Accountability - Excellence
Why join SSP?
Senior Aerospace SSP is the recognized global leader in high-pressure bleed air ducting systems. We provide "total resource" system solutions for complex ducting requirements, with our components found on most aircraft operating worldwide.
Summary: To prepare 3D models and drawings using CATIA V5 R21 and above. Performs design, drafting, and checking functions and can coordinate designs with both Project and Manufacturing Engineers.
Essential Duties and Responsibilities:
Under general supervision, must be able to perform a variety of job duties including, but not limited to:
- Proficient in all facets of 3D modeling in CATIA V5. Capable of creating sketch-based solids, complex surfaces, assemblies, parameterized models, etc.
- Use manufacturing knowledge in the creation of metallic components by sheet metal forming, and both subtractive and additive manufacturing to design parts which can be readily manufactured.
- Create details and assemblies with broad range of complexity while operating within engine and vehicle level DMU environments. Model in local and/or global coordinate systems, as applicable.
- Ability to operate in PLM software (3DX) and use standard configuration management practices.
- Create 2D drawings or 3D PDFs for detail components and assemblies.
- Create Model Based Definition (MBD) using the FTA workbench.
- Develop assembly BOMs.
- Strong understanding and application of GD&T practices per ASME Y14.5-2018 (2009 acceptable).
- Perform tolerance stack-ups, interference checks, and installation assessments.
- Write Engineering Orders and make changes to existing drawings.
- Perform weight calculations (hand or CATIA based).
- Perform design checks of models and drawings created by other drafters.
- Aid the shop, customers, and vendors in reading and interpreting SSP and customer drawings to facilitate manufacturing.
- Create tooling models and drawings.
- Follow all Senior policies and procedures.
- Other duties as assigned.
- Maintain an organized, clean, and safe work area using safety standards
Other Information:
- Less than 5% travel is typical for this role.
- This is not a supervisory role. However, experienced employees are expected to help mentor junior employees as needed.
Education and/or Experience:
- Required
- Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, or related field of study, with four years minimum of aerospace design and drafting experience. Minimum of 6,000 hours in CATIA V5.
- Desired
- Master’s degree in Aerospace Engineering, Mechanical Engineering, or equivalent, along with two years minimum of aerospace design and drafting experience. Minimum 4,000 hours in CATIA V5.
- CATIA V5 courses strongly desired.
- ASME Y14.5 certification is a plus.
Required Skills:
- Language: Must have excellent communication and inter-personal skills; must have the ability to read, comprehend, present, and write (in English) correspondence, blueprints, technical journals and drawings, policies, procedures
Required Skills:
- Language: Must have excellent communication and inter-personal skills; must have the ability to read, comprehend, present, and write (in English) correspondence, blueprints, technical journals and drawings, policies, procedures, etc.
- Reasoning Ability: Ability to apply common sense understanding to carry out detailed, written, and oral instructions. Ability to solve problems involving many variables in various situations.
- Mathematical Skills: Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals.
Other Abilities: Must be able to effectively multi-task and quickly change from task to task. Must be a detail-orientated self-administrator able to work quickly and effectively in a fast-paced environment. Must understand engineering drawings. Must have a working knowledge of shop operations and processes to aid in clarifying drawings. Must be able to analyze figures, results, or complex data to determine the logical solution to a drafting problem. To be responsible for high clerical accuracy and moderate factual dependability in assembling and presenting data. Must be proficient operating CAD programs (CATIA V5), MS Office, including Word, Excel, and PowerPoint as well as email, and the use of printers and plotters.
Annual Target Salary = $110,000 - 130,000, commensurate with experience
Monday - Friday 8:00am - 5:00pm
Joining our team will provide you with a rewarding career with a tight-knit and collaborative team. You will also enjoy a competitive compensation package that includes a market-led base salary, comprehensive benefits package along with wellness benefits, matching 401K plan and paid time off. Apply today for an opportunity to join our team!
Trade Compliance Statement Access to our facilities is restricted under the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR) to U.S. Persons (U.S. Citizens, lawful permanent residents, U.S. Nationals, U.S. refugees, asylees, or temporary residents under amnesty provisions ), and to properly licensed foreign persons. Applicants receiving a conditional offer of employment will be required to provide information to determine whether they are subject to these regulations and, if so, to assess their country of chargeability for export control purposes. Additionally, potential employee names will be screened against the Consolidated Screening List (maintained by the United States government) to determine eligibility to receive controlled technical data.
To ensure there is no unexpected delay to your start date with our Company and due to the potential need to obtain an export license, we would like to promptly assess whether such a license is needed to access our facility and/or systems. Such licenses can take several weeks/months to obtain from the U.S. Government. Our Trade Compliance department may reach out to you with a Licensing Assessment form, which we request you kindly complete and return as soon as possible.
Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions. EOE M/F/D/V/VEVRAA Federal Contractor