1

Core Assembly Jobs in Missouri (NOW HIRING)

$15 - $19/hr

Railcar Cleaning & Assembly Technician 1 is responsible for the overall cleaning, dismantle & final ... Set an example and conduct activities consistent with the core values of CFRS contributing to a ...

next page

Showing results 1-20

Core Assembly information

What is core assembly?

Core assembly refers to the process of constructing the core components used in manufacturing, most commonly in foundries for metal casting. Workers in core assembly build sand or ceramic cores and molds that shape the internal cavities of metal parts during casting. The job requires attention to detail, precision, and knowledge of safety procedures to ensure quality and consistency in the final products. Core assembly is essential in industries such as automotive, aerospace, and machinery manufacturing. Technicians often use hand tools, machines, and specialized adhesives or coatings as part of the assembly process.

What are the key skills and qualifications needed to thrive as a core assembly worker?

To thrive as a Core Assembly worker, you need manual dexterity, attention to detail, basic mechanical aptitude, and often a high school diploma or equivalent. Familiarity with assembly line tools, blueprints, and quality control systems is typically required, and some positions may prefer certifications in manufacturing or safety. Strong teamwork, problem-solving, and time management skills help individuals excel in fast-paced production environments. These competencies are crucial for ensuring efficient, accurate, and safe assembly of components, directly impacting product quality and operational productivity.

What are some common challenges faced in a core assembly role and how can they be overcome?

Core Assembly professionals often encounter challenges such as maintaining high precision under tight deadlines and adapting to frequent changes in production schedules. Ensuring quality while assembling intricate components requires strong attention to detail and adherence to safety standards. Effective communication with team members and cross-department collaboration can help resolve issues quickly and minimize downtime. Continuous learning and staying updated on new assembly techniques or equipment can also help overcome these challenges and enhance job performance.

What is the difference between Core Assembly vs Machinist?

AspectCore AssemblyMachinist
Required CredentialsHigh school diploma or equivalent; some certifications in assembly or manufacturingHigh school diploma; technical certifications or apprenticeships often preferred
Work EnvironmentFactories, assembly lines, manufacturing plantsMachine shops, manufacturing facilities, workshops
Industry UsageAutomotive, aerospace, electronics manufacturingMetalworking, aerospace, automotive industries

Core Assembly involves assembling components into finished products, focusing on precision and following detailed instructions. Machinists operate and maintain machine tools to produce metal parts, requiring technical skills and knowledge of machining processes. While both roles are essential in manufacturing, Core Assembly emphasizes assembling parts, whereas Machinists focus on creating parts through machining processes.

What are popular job titles related to Core Assembly jobs in Missouri?

For Core Assembly jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Core Assembly jobs in Missouri look for?

The top searched job categories for Core Assembly jobs in Missouri are:

What cities in Missouri are hiring for Core Assembly jobs?

Cities in Missouri with the most Core Assembly job openings:

Infographic showing various Core Assembly job openings in Missouri as of August 2026, with employment types broken down into 94% Full Time, and 6% Contract. Highlights an 100% In-person job distribution.

Assembly Mechanic Apprenticeship-Composites

Boeing

Florissant, MO • On-site

Full-time

Medical, Life, Retirement

Re-posted 16 days ago


Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 615 frontline employees who took The Breakroom Quiz

32nd of 545 rated manufacturers


Job description

Assembly Mechanic Apprenticeship-Composites

Company:

Boeing Defense, Space & Security (BDS) is excited to provide the Assembly Mechanic Apprenticeship program in St. Louis, designed to equip aspiring mechanics with the skills and knowledge needed to thrive in a fast-paced manufacturing environment.

Boeing Defense, Space & Security is delivering the most digitally advanced, simply and efficiently produced, and intelligently supported solutions to help warfighters solve their toughest challenges. These products deliver front-line capabilities for today's warfighter and define the future of the air wing with fixed-wing strike, training, autonomy and crewed-uncrewed teaming.

Employees are participants in a full-time company sponsored on-the-job training program. The Assembly Mechanic Apprentice program helps learners develop the skills needed to work in a fast-paced manufacturing environment. Assignments are structured to provide learning experiences that lead to a course completion within a skill area.

The apprenticeship has 4 pathways: Structural, Electrical, Mechanical, and Composites.

The Composites cohort is a 12-week program. Upon completion the candidate will have successfully demonstrated the knowledge, skills, and ability to perform the work of a Composites Assembly Mechanic, to include, interpreting model-based drawings and blueprints, following work instructions, working with high-performance materials like fiberglass, carbon fiber, and epoxy resins, honeycomb and identifying all required hand tools, parts and equipment to accomplish defect-free work and ensuring structural integrity and safety. This involves understanding composite layup techniques, curing processes, and surface finishing, with a focus on quality control and precision.

What is a Technical Apprenticeship?

Boeing Technical Apprenticeship Program (BTAP), is an official registered apprenticeship recognized by the Department of Labor (DOL). It is an earn and learn program including formal learning, on-the-job experiences, and mentorship. Every graduate of a Registered Apprenticeship program will receive a nationally-recognized credential from the DOL.

What makes a great Technical Apprentice?

A degree is not required to apply for most technical apprenticeship programs. We select apprentices based on a range of core traits and skills, such as:

  • Passion for continuously learning, improving, technology, and achieving more

  • Curious mindset, problem solving, and ability to quickly apply back into your work

  • Mechanical aptitude and eagerness to learn new things and help others

  • Positive attitude and strong work ethic

  • Ability to work independently and collaboratively with accountability to a team

  • Self-motivated, with initiative and persistence in achieving success

  • Strong interpersonal skills and confident communication with stakeholders

What is the experience?

As an apprentice, you'll join with other apprentices in a cohort and go through experiences together, learning Boeing, aerospace, and core Assembly fundamentals. Additionally, managers and mentors will support progress through the personal skills roadmap, learning and demonstrating new skills through hands-on application with project teams.

During the apprenticeship duration, you will initially complete a highly rigorous and accelerated learning program tailored to develop foundational skills across manufacturing and assembly. At the conclusion of the program, successful candidates will have the chance to convert to a union-represented Assembly Mechanic position where your skills will be enhanced with training and on-the-job learning tailored for a specific program.

Additional Information:

  • This program is located on the St. Louis Community College - Florissant Valley campus

  • Class start dates will vary based on pathway and course schedule.

  • Classes may be held on first or second shift, based on demand for that session. Selected candidates will be informed of their shift prior to the start of the course

Basic Qualifications:

  • High School diploma or GED

  • Experience using basic math (e.g. addition, subtraction, multiplication and division)

  • Basic computer experience and competency

  • Able to work any shift based on the needs of the operation

Preferred Qualifications:

  • Experience using basic precision measuring tools

  • Experience working in a manufacturing environment

Conflict of Interest:

Successful candidates for this job must satisfy the Company's Conflict of Interest (COI) assessment process

Drug Free Workplace:

Boeingis a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Shift:

This position is for 1st or 2nd shift. (This position may require candidates to work any shift depending on business needs)

Relocation:

This position is located in a location that does not offer relocation. Candidates must live in the immediate area or relocate at their own expense

Total Rewards:

At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary pay range: $18.00/hour USD

Successful candidates will receive a pay increase after converting to the Assembly Mechanic position.

Language Requirements:

Not Applicable

Education:

Not Applicable

Relocation:

Relocation assistance is not a negotiable benefit for this position.

Export Control Requirement:

Safety Sensitive:

Security Clearance:

This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.

Visa Sponsorship:

Employer will not sponsor applicants for employment visa status.

Contingent Upon Award Program

This position is not contingent upon program award

Shift:

Stay safe from recruitment fraud! The only way to apply for a position at Boeing is via our Careers website. Learn how to protect yourself from recruitment fraud - Recruitment Fraud Warning

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

EEO is the law

Boeing EEO Policy

Request an Accommodation

Applicant Privacy


Boeing Participates in E - Verify

  • E-Verify (English)
  • E-Verify (Spanish)

Right to Work Statement

  • Right to Work(English)
  • Right to Work(Spanish)

What Boeing employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Boeing logo

About Boeing

Sourced by ZipRecruiter

At Boeing, we are all innovators on a mission to connect, protect, explore and inspire. From the sea bed to outer space, you'll learn and grow, contributing to work that shapes the world. Find your future with us.

Industry

Aviation and aerospace product and parts manufacturing

Company size

10,000+ Employees

Headquarters location

Chicago, IL, US