Senior Mechanical Engineer at Arc Technology Solution LLC – Nashua, New Hampshire

Company Overview

ARC Technology Solutions, LLC provides innovative, customer-specific solutions that enable companies to scale. We design core product offerings tailored to meet increasingly complex manufacturing and test requirements by integrating system design, mechanical engineering, software, and hardware. For over two decades, ARC has supported top aerospace, defense, transportation, industrial, and electronics companies with engineered solutions that drive productivity. Join us if you are motivated to help solve complex technical and operational challenges.

Job Summary

The Senior Mechanical Engineer is responsible for developing innovative, cost-effective mechanical solutions that meet customer requirements. This role requires strong technical design capability, cross-functional collaboration, and the ability to deliver accurate work on schedule. The Senior Mechanical Engineer will also provide technical leadership, mentorship, and support throughout the full product lifecycle.

Responsibilities

· Collaborate closely with Engineering, Sales, and Project Management to design and draft tooling, fixtures, and mechanical systems based on customer specifications.

· Create, update, and revise detailed 3D models and 2D drawings using SolidWorks CAD software.

· Correct drawing errors, incorporate redlines, validate GD&T, and generate Engineering Change Orders and complete documentation packages.

· Operate and maintain a 3D printer to support prototyping and rapid iteration.

· Evaluate design feasibility; propose design improvements, cost optimizations, and manufacture-friendly solutions using DFM principles.

· Create and maintain Bills of Materials (BOMs) in SolidWorks and PDM and assist with transferring data into the ERP system for use by project management, purchasing, and manufacturing.

· Provide guidance, mentorship, and technical support to junior engineers, drafters, and contractors.

· Delegate tasks strategically to reduce design-to-fabrication lead time and improve on-time delivery performance.

· Research and select components based on performance, sustainability, availability, and cost considerations.

· Maintain strong working relationships with fabrication partners to ensure quality and expedite schedules.

· Support assembly technicians and operations personnel during build, installation, and testing of designed systems.

· Assist electrical and software engineering teams during system integration, troubleshooting, and validation.

· Work with Sales to interpret customer statements of work (SOW) and translate requirements into concepts, design approaches, and labor estimates for quotes.

· Follow and contribute to internal engineering standards, processes, and best practices.

· Some local and national travel may be required (typically <10%).

Required Skills and Capabilities

· Strong understanding of mechanical engineering principles, including materials, GD&T, automation, machine design, sheet metal, and machined component design.

· Ability to accurately estimate mechanical engineering effort for quoting and planning.

· Proficiency in interpreting customer specifications, manufacturing drawings, and assembly documentation.

· Expert-level proficiency with SolidWorks, including PDM; experience with CADTalk is preferred.

· Familiarity with common inspection tools (calipers, micrometers, etc.).

· Highly self-motivated, proactive, and hands-on approach to engineering challenges.

· Ability to work effectively on a multidisciplinary team as well as independently with minimal supervision.

· Strong verbal and written communication skills for interfacing with colleagues, vendors, and customers.

· Strong technical writing ability for generating assembly instructions, user manuals, and engineering documentation.

Education and Experience

One of the following is required:

· Bachelor’s degree in Mechanical Engineering or a related field, plus 4+ years of relevant industry experience; or

· Associate degree in a related field, plus 10+ years of relevant industry experience.