Mechanical Technician/Assembler

Job Title: Mechanical Technician

Job Description

Join a hands-on Build & Integration team that converts traditional freight rail cars into advanced electrified, self-driving vehicles. As a Mechanical Technician, you will use your mechanical expertise to support system assembly, mechanical integration, and troubleshooting across multiple disciplines. You will play a key role in product build, deployment, and long-term support, ensuring high-quality, reliable performance of complex rail-based systems.

Responsibilities

• Perform mechanical builds, including cutting, welding, and general fabrication on new and modified hardware based on mechanical drawings, CAD models, and verbal instructions.

• Assemble mechanical platforms, frames, and custom enclosures to support complete system installations, including pneumatics, hydraulics, drivetrains, high- and low-voltage power systems, cooling systems, sensors, and control components.

• Use hand tools and power tools to complete mechanical assembly, installation, and repair tasks safely and efficiently.

• Interpret and work from mechanical blueprints, CAD drawings, hydraulic schematics, and pneumatic schematics to execute precise builds and integrations.

• Assist with material handling and movement of assemblies using forklifts, cranes, and other shop equipment.

• Inspect mechanical assemblies to verify quality, alignment, and functionality before and after integration.

• Troubleshoot and repair mechanical assemblies by diagnosing failures, identifying root causes, and performing effective corrective actions.

• Provide lifecycle support by diagnosing and resolving issues on fielded systems and performing preventive maintenance as needed.

• Use product manuals and technical documentation to guide maintenance, repair, and integration activities.

• Collaborate closely with a cross-functional team to support evolving build designs and operational changes introduced through prioritized capability enhancements.

• Follow safety procedures and best practices while working with tools, equipment, and rail-related systems in a shop environment.

Essential Skills

• Strong hands-on mechanical skills with experience in assembly, repair, and installation work.

• Proficiency in mechanical blueprint reading, including the ability to interpret mechanical drawings, hydraulic schematics, and pneumatic schematics.

• Experience with troubleshooting mechanical failures, identifying root causes, and performing effective repairs.

• Ability to perform cutting, welding, and general fabrication work based on mechanical drawings and CAD models.

• Skilled use of hand tools and power tools for mechanical assembly and repair.

• Ability to read and apply information from product manuals and technical documentation to perform maintenance and repairs.

• Capability to work with pneumatics, hydraulics, drivetrains, and power systems as part of mechanical integration.

• Physical ability to occasionally lift, pull, push, stoop, climb, reach, bend, and work in tight or awkward positions as needed.

• Strong interpersonal and communication skills to work effectively within a collaborative team environment.

Additional Skills & Qualifications

• Technical Associate’s Degree in a related field, or equivalent hands-on mechanical experience.

• Experience working with rail systems or freight rail equipment.

• Familiarity with electrified or electric vehicle systems in a mechanical integration context.

• Comfort working from CAD drawings and models to guide fabrication and assembly.

• Experience operating or assisting with forklifts, cranes, or similar shop equipment for material handling.

• Adaptability to evolving build designs, new technologies, and changing operational priorities.

Why Work Here?

You will contribute to a forward-thinking organization that is redefining the future of rail technology. The work centers on cutting-edge projects that blend the historic strength of rail with next-generation innovation, offering the chance to participate in meaningful, visible advancements in freight transportation. You will have the opportunity to grow your skills in a highly collaborative environment, work on impactful solutions that support a more sustainable and efficient rail network, and build a long-term career in an innovative, technology-driven setting.

Work Environment

You will work as part of dynamic teams of approximately 3–10 members on a variety of build and integration projects. The environment is highly collaborative, emphasizing clear communication, teamwork, and continuous learning as designs and capabilities evolve. The role is based in a shop and rail-integration setting, using hand tools, power tools, welding equipment, forklifts, cranes, and other mechanical and material-handling equipment. You will work a consistent Monday–Friday schedule from 7:00 AM to 3:30 PM, with tasks that may require physical activity such as lifting, bending, climbing, and working in tight or awkward spaces while assembling and servicing rail-related mechanical systems.

Job Type & Location

This is a Contract to Hire position based out of St. Louis, MO.

Pay and Benefits

The pay range for this position is $20.00 - $30.00/hr.

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)

Workplace Type

This is a fully onsite position in St. Louis,MO.

Application Deadline

This position is anticipated to close on Jun 11, 2026.

About Aerotek

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meets their goals, skills and interests. Since 1983, we have provided a variety of career opportunities across North American industry – from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role solving for companies’ construction, manufacturing and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are everything spirit to the test as your career continues to grow.

Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.

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

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.