# Senior Mechanical Engineer

Job Summary: The Senior Mechanical Engineer research, plans, designs, develops, analyzes and tests a variety of mechanical equipment items and systems, including chassis, hardware assembly, installation hardware and installation design. Responsibilities and Tasks: Ability to apply practical engineer science, design and technology. Understanding of current manufacturing processes and how they relate to design. Conceptualize, design and oversea fabrication of efficient complex mechanical systems and analyze for manufacturability and cost. Be able to understand and produce engineering drawings. Create procedures for carrying out various mechanical testing. Communicate changes in design and assembly with management and production staff. Estimate cost to produce design including material and labor costs (assembly and fabrication). Calculate mechanical requirements to meet system design specifications. Understanding of static and dynamic events and how they relate to structural integrity. Ability to design electronic packages for harsh environments and maintain required reliability. Basic understanding of electronic circuits and their effect on mechanical performance. Other related duti

- **Id**: 3974740
- **Url**: <https://alion.io/job/twenty-six-defense-senior-mechanical-engineer>
- **Role**: Industrial Engineering
- **Role family**: Industrial Engineering
- **Seniority**: senior
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Merrimack, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-09T05:00:00Z
- **Employer posted date**: 2026-11-09
- **Last verified at**: 2026-11-12T15:07:21Z
- **Board verified**: yes
- **Days open**: 3
- **Description format**: text
- **Description chars**: 1774
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: C4ISR, Soldier Equipment

## Company

- **Id**: 3837257
- **Name**: Twenty-Six Defense
- **Domain**: 26defense.com
- **Url**: <https://alion.io/company/26defense>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Dayforce

### Truth index

- **Grade**: B
- **Score**: 75
- **Open postings**: 18
- **Ghost share**: 0
- **Stale share**: 1
- **Repost share**: 0
- **Time to fill p50 days**: 37
- **Computed at**: 2026-11-12T10:38:37Z

## Technologies

- **ANSYS** — Optional: no
- **CATIA** — Optional: no
- **Microsoft Office** — Optional: no
- **SolidWorks** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 3

## Requirements

- **Experience years min**: 5
- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: bachelor
- **Optional**: no

## Lifecycle

- Event: open; At: 2026-11-09T17:36:56Z

## Liveness

- **Score**: 63
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.632
- **P room**: 1
- **Age days**: 3
- **Expected fill days**: 37
- **Reasons**: conf:1, stale_co, velocity, win:early
- **Computed at**: 2026-11-12T10:38:37Z

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.