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Freelance Control Systems Engineer Jobs in Missouri

Senior Systems Engineer

Hazelwood, MO

$136K - $185K/yr

  • Medical

  • Life

  • Retirement

This role is responsible for applying systems engineering and operations analysis methods to ... S. export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. §120.62 is ...

Controls Engineer

Kansas City, MO · On-site +1

$77K - $99K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

This role is ideal for an Automation Engineer, PLC Programmer, Control Systems Engineer, or Systems Integration Engineer who enjoys seeing projects through from concept and design to startup ...

Controls Engineer

Kansas City, MO · On-site +1

$77K - $99K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

This role is ideal for an Automation Engineer, PLC Programmer, Control Systems Engineer, or Systems Integration Engineer who enjoys seeing projects through from concept and design to startup ...

Experienced Systems Engineer

Hazelwood, MO · On-site

  • Medical

  • Life

  • Retirement

Experienced Systems Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is ... Manage technical risks, schedule impacts, and change control for escape system deliverables.

Controls Engineer

Kansas City, MO · On-site +1

$77K - $99K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

This role is ideal for an Automation Engineer, PLC Programmer, Control Systems Engineer, or Systems Integration Engineer who enjoys seeing projects through from concept and design to startup ...

Experienced Systems Engineer

Hazelwood, MO · On-site

  • Medical

  • Life

  • Retirement

Experienced Systems Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is ... Manage technical risks, schedule impacts, and change control for escape system deliverables.

Experienced Systems Engineer

Hazelwood, MO · On-site

  • Medical

  • Life

  • Retirement

Experienced Systems Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is ... Manage technical risks, schedule impacts, and change control for escape system deliverables.

New

Controls Engineer

Fenton, MO · On-site

$80K - $103K/yr

  • Retirement

  • PTO

The Control System Engineer is responsible for development of the technical aspects of assigned projects. This may include: * Assist in feasibility studies and development of cost estimation * System ...

Controls Engineer

Fenton, MO · On-site

$80K - $103K/yr

  • Retirement

  • PTO

The Control System Engineer is responsible for development of the technical aspects of assigned projects. This may include: * Assist in feasibility studies and development of cost estimation * System ...

Controls Engineer

Fenton, MO · On-site

$80K - $103K/yr

  • Retirement

  • PTO

The Control System Engineer is responsible for development of the technical aspects of assigned projects. This may include:Assist in feasibility studies and development of cost estimationSystem ...

Controls Systems Engineer II

Bridgeton, MO · On-site

$79K - $103K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Perform classical control design and verification using frequency-domain methods (Bode/Nyquist), root locloop shaping, stability margins, and performance tradeoffs (disturbance rejection vs noise ...

IEC Systems Engineer - TS/SCI

Arnold, MO

$142K - $170K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Skills: Computer Systems Engineering, Enterprise Systems Engineering, Information Systems ... Running project control gates, tracking tasks * Collaborating with different service lanes * Data ...

Automation Engineer

Saint Peters, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Troubleshoot and modify software programs for material handling control systems, including PLC/PC ... Engineer process solutions and reliability improvement from concept to network implementation.

Automation Engineer

Maryland Heights, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Troubleshoot and modify software programs for material handling control systems, including PLC/PC ... Engineer process solutions and reliability improvement from concept to network implementation.

Manage technical risks, schedule impacts, and change control for escape system deliverables ... Bachelor of Science degree from an accredited course of study in engineering, engineering ...

System Engineer (Senior) 112-131

Saint Louis, MO · On-site

$101K - $139K/yr

The N2W Deployment Systems Engineer will support the Enterprise Deployment process planning ... Perform quality control and quality assurance analysis of schedule and process data to ensure ...

Rinvio is hiring a Process Control Engineer for process controls, PLC systems, and industrial automation engineering in the Cape Girardeau, MO area. Pay: $55-$80/hour, based on experience Location:

Showing results 41-60

Freelance Control Systems Engineer information

What is a freelance control systems engineer?

A Freelance Control Systems Engineer is a professional who designs, develops, and maintains systems that control machinery or processes, typically working on a contract or project basis rather than as a permanent employee. These engineers often work with automation systems in industries such as manufacturing, energy, or transportation. Their responsibilities include programming controllers, troubleshooting control systems, and ensuring optimal system performance. As freelancers, they enjoy flexibility in choosing projects and clients, but they also manage their own business operations, such as client communication and billing.

How does a freelance control systems engineer typically collaborate with clients and multidisciplinary teams during a project?

As a Freelance Control Systems Engineer, you often work closely with clients to define project specifications, provide technical consultation, and ensure deliverables align with their operational needs. Collaboration frequently involves remote meetings, regular progress reports, and integration with other engineering disciplines such as mechanical, electrical, and software teams. Effective communication and flexibility are essential, as you may need to adapt to different workflows and project management tools set by various clients. Building strong client relationships and demonstrating reliability can lead to repeat business and referrals.

What are the key skills and qualifications needed to thrive as a freelance control systems engineer, and why are they important?

To thrive as a Freelance Control Systems Engineer, you need a solid background in electrical or automation engineering, proficiency in system design, and experience with PLCs and SCADA systems, often supported by a relevant engineering degree. Familiarity with industry-standard tools such as Siemens, Allen-Bradley, or Schneider Electric platforms, and certifications like ISA CAP or TUV Functional Safety are typically valuable. Strong problem-solving, self-management, and communication skills help in managing projects independently and collaborating with diverse clients. These skills are crucial for delivering reliable automation solutions, meeting client expectations, and maintaining a competitive edge in a dynamic freelance market.

What is the difference between Freelance Control Systems Engineer vs Control Systems Technician?

AspectFreelance Control Systems EngineerControl Systems Technician
CredentialsBachelor's degree in engineering or related field; certifications like PLC or SCADA are commonTechnical diploma or associate degree; specialized training in control systems
Work EnvironmentProject-based, often remote or on-site at client facilitiesOn-site at industrial plants or manufacturing facilities
Employer & IndustryIndependent contractors serving multiple clients across industriesEmployers in manufacturing, automation, and industrial sectors
Search & Comparison IntentLooking for freelance control system design, integration, or consultingSeeking maintenance, troubleshooting, or installation of control systems

The main difference is that Freelance Control Systems Engineers focus on designing and integrating control systems independently, often working on a project basis, while Control Systems Technicians handle installation, maintenance, and troubleshooting within industrial settings. Both roles require technical knowledge, but their responsibilities and work environments differ significantly.

What are the most commonly searched types of Control Systems Engineer jobs in Missouri?

The most popular types of Control Systems Engineer jobs in Missouri are:

What are popular job titles related to Freelance Control Systems Engineer jobs in Missouri?

For Freelance Control Systems Engineer jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Freelance Control Systems Engineer jobs in Missouri look for?

The top searched job categories for Freelance Control Systems Engineer jobs in Missouri are:

What cities in Missouri are hiring for Freelance Control Systems Engineer jobs?

Cities in Missouri with the most Freelance Control Systems Engineer job openings:

Infographic showing various Freelance Control Systems Engineer job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 11% Part Time, 5% Contract, and 1% Nights. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution.

Senior Systems Engineer

Boeing

Hazelwood, MO

$136K - $185K/yr

Full-time

Medical, Life, Retirement

Posted 11 days ago


Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 613 frontline employees who took The Breakroom Quiz

33rd of 540 rated manufacturers


Job description

Job Description

At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.

Boeing Global Services (BGS) Engineering team is seeking a Senior Systems Engineer to support the Air Dominance Proprietary 2 team in Hazelwood, Missouri.

This role is responsible for applying systems engineering and operations analysis methods to evaluate mission effectiveness, operational performance, system behavior, trade studies, and requirements across the program lifecycle.

The ideal candidate has strong experience supporting defense programs and working across engineering, operations, test, logistics, and program management teams to help define, assess, and optimize platform capabilities.

Position Responsibilities:

  • Perform operations analysis, systems analysis, and engineering assessments for military platform development programs
  • Support concept development, requirements definition, and system architecture trade studies
  • Analyze mission effectiveness, system performance, operational scenarios, and capability impacts
  • Develop models, simulations, and analytical products to evaluate design alternatives and operational concepts
  • Support systems engineering activities across the program lifecycle, including requirements management, verification planning, and technical reviews
  • Collaborate with multidisciplinary teams including design engineering, test, integration, logistics, sustainment, and customer representatives
  • Assess risk, technical performance, readiness, and mission impact of proposed design changes
  • Provide analytical support for system-level decisions, including cost, schedule, performance, and capability tradeoffs
  • Prepare briefings, reports, and decision-support materials for internal leadership and customer stakeholders
  • Support integration and test planning, test data analysis, and validation of operational assumptions
  • Contribute to development of operational concepts, mission scenarios, and use cases for military systems
  • Ensure analytical work aligns with program goals, customer expectations, and military platform requirements

Basic Qualifications (Required Skills/Experience):

  • Bachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement
  • Active U.S. Security Clearance
  • 5+ years of engineering experience

Preferred Qualifications (Desired Skills/Experience):

  • Aircraft maintenance experience
  • Experience with reliability calculations and terms (i.e. MTBR, MTBF, MTBM, NMC-M, NMC-S, RTOK)
  • Experience with supply concepts and interface with supply analysis
  • Experience with predictive analysis
  • Experience with aircraft driven fault reporting
  • Experience with Mail Exchange (MX) code generation i.e Atlas database and/or other databases
  • Experience with basic programming, Visual Basic Application (VBA) use with Access and Excel

Conflict of Interest:

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

Drug Free Workplace:

Boeing is 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.

Pay & Benefits:

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: $136,850 - $185,150


Applications for this position will be accepted until Aug. 22, 2026


Export Control Requirements:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Export Control Details:

US based job, US Person required

Education

Bachelor's Degree or Equivalent Required

Relocation

This position offers relocation based on candidate eligibility.

Security Clearance

This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)

Visa Sponsorship

Employer will not sponsor applicants for employment visa status.

Shift

This position is for 1st shift


Equal Opportunity Employer:

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.


What Boeing employees say

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Benefits

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