Senior Mechanical Engineer

Job Title: Sr Mechanical Design Engineer Job Description This Sr Mechanical Design Engineer role focuses on the design, development, and documentation of Lithium-Ion battery systems for motive power applications. You will work within a cross-functional engineering team to create innovative, cost-effective, reliable, and manufacturable battery solutions, owning product development from initial concept through production release and commercialization in a rapidly growing energy storage and electrification industry. Responsibilities

- Design and develop advanced Lithium-Ion battery products, enclosures, and mechanical components using SolidWorks CAD, taking concepts through to full production release.
- Create and maintain detailed engineering drawings, 3D models, assemblies, Bills of Materials (BOMs), and comprehensive product documentation.
- Develop multiple design concepts and prototypes to meet customer requirements and product performance, safety, and reliability targets.
- Perform product testing and validation, analyze results, and implement design improvements to optimize performance, durability, and safety.
- Evaluate designs for cost, manufacturability, reliability, safety, and regulatory compliance, applying Design for Manufacturing (DFM) and Design for Assembly (DFA) principles.
- Support vendor development and manufacturing processes, including sheet metal, weldments, and injection molding, and collaborate with suppliers to resolve design and production challenges.
- Manage technical data, configuration control, and design revisions using SolidWorks PDM, ERP systems, and Engineering Change Orders (ECOs).
- Conduct tolerance stack-up analysis and apply sound mechanical design fundamentals, including strength of materials and structural design considerations.
- Integrate electrical components within mechanical systems for electro-mechanical products such as battery packs, energy storage systems, and power electronics enclosures.
- Apply thermal management and enclosure design principles to ensure safe and reliable operation of battery systems and related products.
- Support prototype builds, product validation, and production launch activities, including hands-on testing, design reviews, and manufacturing support.
- Work closely with cross-functional teams in Electrical Engineering, Manufacturing, Supply Chain, and Quality to drive product development and resolve technical issues.
- Troubleshoot and resolve design and manufacturing issues, providing practical, data-driven solutions in a fast-paced product development environment.
- Contribute to product lifecycle management from concept through production release, ensuring documentation accuracy and configuration integrity.
- Participate in design reviews and continuous improvement initiatives to enhance product performance and development processes.

Essential Skills

- Bachelor's degree in Mechanical Engineering.
- 5+ years of mechanical design experience in a product development environment.
- Advanced proficiency in SolidWorks 3D modeling, assemblies, and drawing creation, with 1,000+ hours of hands-on experience preferred.
- Extensive experience creating 3D models, assemblies, detailed drawings, and engineering documentation in SolidWorks.
- Experience utilizing SolidWorks PDM for document control, configuration management, and revision control.
- Strong understanding of mechanical design principles, including tolerancing, strength of materials, material selection, and structural design.
- Experience creating and managing Bills of Materials (BOMs), engineering documentation, and design revisions.
- Proven ability to design mechanical products and systems in a manufacturing environment, including sheet metal, weldments, and injection molded components.
- Strong knowledge of Design for Manufacturing (DFM) and Design for Assembly (DFA).
- Experience conducting tolerance stack-up analysis and applying engineering fundamentals to optimize designs.
- Ability to perform basic engineering calculations related to structural, thermal, and mechanical performance.
- Experience with electro-mechanical product design and integration of electrical components within mechanical systems.
- Familiarity with ERP systems and engineering change management processes, including ECOs.
- Strong problem-solving, communication, teamwork, and collaboration skills.
- Strong project management and prioritization skills, with the ability to manage multiple tasks in a fast-paced environment.
- Ability to troubleshoot and resolve design and manufacturing issues effectively.

Additional Skills & Qualifications

- Experience designing Lithium-Ion battery products, battery packs, enclosures, energy storage systems, EV products, power electronics, or similar electro-mechanical products.
- Understanding of thermal management, durability, and safety considerations associated with battery technologies.
- Knowledge of GD&T per ASME Y14.5 standards.
- Experience supporting UL certifications or other product compliance and regulatory requirements.
- Familiarity with prototype development, testing, and validation processes.
- Experience working in cross-functional environments alongside Electrical, Manufacturing, Supply Chain, and Quality teams.
- Understanding of product lifecycle management from concept through production release.
- Experience with CAD tools such as AutoCAD and Creo in addition to SolidWorks.
- Experience in new product development and mechanical engineering projects involving battery management systems.
- Interest in and exposure to the energy storage and electrification industry.
- Motivation to design and develop next-generation Lithium-Ion battery systems with direct impact on innovative product development.
- Ability to work in a high-visibility role and contribute to long-term projects with a stable and growing energy solutions focus.

Work Environment This is a full-time, 100% onsite position based in Alpharetta, GA, with working hours typically from 9:00 a.m. to 4:00 p.m. The role offers a mix of office, engineering lab, and manufacturing floor environments, providing hands-on exposure to product development, prototype builds, testing, and production support. You will work in a cross-functional team setting with frequent collaboration between mechanical, electrical, manufacturing, supply chain, and quality disciplines. The position is fast-paced and innovation-focused, emphasizing continuous improvement and practical problem-solving. Approximately 5060% of the role involves CAD and design work, while 4050% involves hands-on testing, validation, and direct interaction with prototypes and manufacturing processes. Occasional travel may be required to support business and project needs
Job Type & Location
This is a Contract position based out of Alpharetta, GA.
Pay and Benefits
The pay range for this position is $40.00 - $45.00/hr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)
Job Type & Location
This is a Contract position based out of Alpharetta, GA.
Application Deadline
This position is anticipated to close on Nov 12, 2026.
Workplace Type
This is a fully onsite position in Alpharetta,GA. About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without
regard to race, sex, age, color, religion, national origin, veteran status, disability,
sexual orientation, gender identity, genetic information or any characteristic protected
by law.

If you would like to request a reasonable accommodation, such as the modification or
adjustment of the job application process or interviewing process due to a disability,
please email [email protected] for other accommodation options.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the
city and county of San Francisco, we will consider for employment qualified applicants
with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a
condition of employment or continued employment. An employer who violates this law
shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process,
including sourcing, screening, and evaluating candidates. AI helps assess applications
and qualifications, but final decisions are made by our hiring team. By applying, you
acknowledge and agree that your application may be reviewed using AI tools.