Core Jobs in Milwaukee, WI (NOW HIRING)

This role focuses on assembling the cores of industrial radiators in a busy fabrication and assembly shop. You will operate machinery, handle metal components, and work closely with a teammate to build high-quality radiator cores used in warehouses, production facilities, and data centers. The position offers a weekend shift schedule with paid training on a weekday shift to ensure you are confident and safe in all core assembly processes.

• Assemble the cores of industrial radiators in the core assembly area according to established procedures and quality standards.
• Operate a slitting machine by loading spools of various metals, monitoring operation, and ensuring the machine runs smoothly without jamming.
• Work in teams of two to assemble radiator cores, using a handle to insert metal pipes through core sheathing accurately and efficiently.
• Read and interpret blueprints and assembly drawings to ensure correct measurements, alignment, and component placement.
• Use power tools and hand tools safely to support core assembly and related mechanical tasks.
• Measure materials and components accurately using a tape measure to maintain precise dimensions and tolerances.
• Handle and move materials and components using an overhead crane where required, following all safety guidelines.
• Support solder dipping of cores in the warm core area, following safety and quality procedures to ensure durable, leak-free assemblies.
• Maintain a clean, organized, and safe work area, contributing to a tidy and efficient assembly and fabrication shop.
• Collaborate with the Assembly Supervisor and team members to meet production targets and support evolving product lines, including radiators for data centers.

• At least 1 year of assembly or machine operation experience in a manufacturing, fabrication, or similar environment.
• At least 1 year of experience using power tools safely and effectively.
• Ability to read and use a tape measure accurately for measuring materials and components.
• Mechanical assembly skills, including working with metal components and fittings.
• Ability to read and interpret blueprints and mechanical drawings.
• Experience using or working around an overhead crane in a shop environment.
• Comfort working in a warm, non-temperature-controlled production area.
• Strong teamwork skills, including the ability to work in pairs on shared assembly tasks.
• Attention to detail and commitment to quality in all aspects of assembly work.

• Previous experience as a mechanical assembler in an assembly and fabrication shop.
• Familiarity with industrial radiator or heat exchanger assembly processes.
• Experience working on weekend shifts or extended shifts in manufacturing.
• Ability to follow detailed work instructions and safety procedures.
• Willingness to train on a weekday first or second shift prior to transitioning to the weekend shift.
• Comfort working with soldering processes or heated materials in a production environment.

You join a clean, organized, and growing manufacturing environment that is investing in future-focused products such as radiators for data centers. The weekend shift schedule offers 36 hours of work with pay equivalent to 40 hours, along with a shift premium on weekend hours, supporting work-life balance and additional earning potential. You benefit from structured training on a weekday shift, clear supervision, and a culture that emphasizes safety, teamwork, and long-term business growth.

The role is based in an assembly and fabrication shop that builds industrial radiators for warehouses, production facilities, and data centers. You will initially train on a first or second shift during weekdays, then transition to a weekend shift schedule of Friday, Saturday, and Sunday from 6:00 a.m. to 6:00 p.m., working 36 hours and being paid for 40 hours with a shift premium applied to weekend hours. The facility is clean and organized but not temperature controlled, so it can become hot in the summer, especially in the core area where solder dipping of cores takes place. You will work with equipment such as slitting machines, overhead cranes, power tools, and measuring tools like tape measures, following safety practices throughout your shift. The position reports to an Assembly Supervisor and operates in a production-focused environment that values efficiency, quality, and teamwork.

This is a Contract to Hire position based out of KENOSHA, WI.

The pay range for this position is $22.00 - $22.00/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)

This is a fully onsite position in KENOSHA,WI.

This position is anticipated to close on Aug 10, 2026.

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.