Box Assembly Jobs in California (NOW HIRING)

Aerospace Mechanical Assembler

Job Description

• This role focuses on high-volume mechanical assembly work for a military and defense production facility in Santa Ana, CA, on a 2nd shift schedule.
• You will perform repetitive, precision mechanical and electronic assemblies in a fast-paced environment with a goal of producing up to 5,000 units per month.
• The position offers overtime opportunities and the potential to relocate to an Ohio site at the end of the year, with strong prospects for long-term growth and development.

Responsibilities

• Perform repetitive mechanical assemblies in a high-paced production environment, meeting daily and monthly output targets such as 5,000 units per month for the team.
• Assemble high quality mechanical assemblies, wire harnesses, test racks, junction boxes, and associated components using hand tools, power tools, and soldering equipment.
• Read and interpret blueprints, schematics, and wiring diagrams to accurately perform assembly tasks and follow detailed work instructions.
• Use common hand and power tools, including pliers, wrenches, screwdrivers, depth micrometers, calipers, dial indicators, pressure gauges, multimeters, test boxes, and other specialized test equipment to complete assemblies and adjustments.
• Perform inspection of assembled components to ensure they meet quality standards and specifications, identifying and correcting defects as needed.
• Conduct validation and testing of various electronic components using equipment such as multimeters, oscilloscopes, network analyzers, and test racks.
• Assemble and work with RF systems, including testing and running RF-related components and subsystems.
• Apply common air-frame construction techniques, including installing rivets, mechanical fasteners, nut plates, and similar hardware where required.
• Perform electronic box assembly, including troubleshooting issues and writing detailed issue tickets for failures and nonconformances.
• Run functional checkouts and tests on assemblies and systems, diagnosing issues discovered during these processes and implementing corrective actions.
• Troubleshoot extensively at the mechanical, electronic, and PCBA levels to resolve problems and improve product performance.
• Use a computer to access standard browsers and word processing applications for documentation, issue reporting, and communication.
• Collaborate and communicate effectively, both verbally and in writing, with engineering and production teams to resolve technical issues and improve processes.
• Adapt quickly to changing roles and responsibilities while maintaining productivity and quality in a challenging, fast-paced work environment.
• Work overtime and weekend shifts as needed to support production demands and project schedules.
• Wear required steel toe or composite toe shoes or boots at all times while on the production floor to maintain safety compliance.

Essential Skills

• At least 2 years of experience working in a manufacturing setting performing mechanical assemblies; experience in aerospace, electronics, or medical industries is preferred.
• Proficiency with common hand tools such as pliers, wrenches, and screwdrivers for assembly and adjustment tasks.
• Proficiency with power tools and precision measuring instruments, including depth micrometers, calipers, dial indicators, and pressure gauges.
• Experience using multimeters, test boxes, and specialized test equipment for assembly, validation, and troubleshooting.
• Ability to read and interpret wiring diagrams, blueprints, and schematics and follow detailed assembly instructions accurately.
• Working knowledge of common electrical components and their functions within assemblies and systems.
• Proficiency with computer use, including standard web browsers and word processing applications, for documentation and communication.
• Ability to communicate effectively, both verbally and in writing, with engineering and production personnel.
• Ability to rapidly change roles and responsibilities while working in a high-paced, challenging work environment.
• Comfort with repetitive mechanical assembly work in a high-volume production setting.
• Availability and willingness to work 2nd shift (approximately 2:30 pm to 11:00 pm) and to support overtime and weekend shifts as needed.
• Ability and willingness to wear steel toe or composite toe shoes or boots as required safety equipment.

Additional Skills & Qualifications

• Experience mechanically assembling repetitive mechanical assemblies, high quality wire harnesses, test racks, junction boxes, and associated components involving hand soldering and component fabrication.
• Experience performing validation and testing of electronic components using multimeters, oscilloscopes, network analyzers, and test racks.
• Familiarity with air-frame construction techniques, including working with rivets, mechanical fasteners, nut plates, and similar hardware.
• Experience with electronic box assembly, including troubleshooting and writing detailed issue tickets for failures.
• Experience running functional checkouts and tests and diagnosing issues discovered during these processes.
• Experience testing and running RF systems in a production or test environment.
• Extensive troubleshooting experience at the mechanical, electronic, and PCBA levels.
• Experience with mechanical and electronic assembly in aerospace, electronics, or medical device environments.
• Familiarity with integration work, including assembling and integrating multiple subsystems into complete products.
• Experience with soldering for electronic and mechanical assemblies.
• Familiarity with software tools used for documentation, testing, or support of production processes.
• Interest in or openness to relocating to an Ohio site at a later stage for continued employment and growth opportunities.

Why Work Here?

• You join a rapidly growing organization that offers a long-term career path in a stable and expanding industry.
• The company invests in training and development, giving you the opportunity to build new skills and advance into more complex technical roles over time.
• When you transition to a direct position, you can benefit from a comprehensive benefits package and the opportunity to participate in equity programs, aligning your success with the company’s growth.
• You work alongside a supportive team in a structured environment where high standards, continuous improvement, and professional development are encouraged.

Work Environment

• You work in a clean, organized production environment within a large, growing facility that is expanding and has received funding to build a new site.
• The role is on 2nd shift, typically around 2:30 pm to 11:00 pm, with regular opportunities for overtime during the week and on Saturdays, and occasional weekend shifts as needed.
• The work is highly repetitive and fast-paced, with ambitious production goals that require focus, consistency, and attention to detail.
• You use a wide range of tools and equipment, including hand tools, power tools, precision measuring instruments, multimeters, oscilloscopes, network analyzers, test racks, and soldering equipment.
• Safety is a priority, and you must wear steel toe or composite toe shoes or boots while on the production floor.
• The environment supports collaboration between production and engineering teams and offers exposure to advanced mechanical, electronic, and RF systems.

Job Type & Location

This is a Contract to Hire position based out of Santa Ana, CA.

Pay and Benefits

The pay range for this position is $28.00 - $32.00/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 Santa Ana,CA.

Application Deadline

This position is anticipated to close on Jul 24, 2026.

About Aerotek

Aerotek® Inc. provides staffing and services solutions in manufacturing, logistics, construction, aviation, facilities and maintenance. We provide the expertise, solutions and people required to rise to the challenges of North American industry. Headquartered in Hanover, Md., Aerotek operates a unified network of over 200 offices across North America, supporting more than 18,000 clients each year. Aerotek is an Allegis Group company, the global leader in workforce and business solutions. To learn more, visit: Aerotek.com | 1-888-AEROTEK.

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.

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 meet 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 in solving 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.