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Senior Machine Operator Jobs in O Fallon, MO (NOW HIRING)

Senior DevOps Engineer

Saint Louis, MO · On-site

$126K - $162K/yr

Advises hardware engineers on machine characteristics that affect software systems, such as storage ... Proficiency with Linux operating systems * Working experience with CI/CD pipelines (Gitlab, Jenkins ...

New

Senior Manufacturing Engineer

Saint Louis, MO · On-site

$88K - $121K/yr

Support operators and technicians with clear standard work, work instructions, and training ... Strong knowledge of manufacturing processes and methods relevant to the site (e.g., machining ...

Senior Manufacturing Engineer

Saint Louis, MO · On-site

$86K - $118K/yr

Support operators and technicians with clear standard work, work instructions, and training ... Strong knowledge of manufacturing processes and methods relevant to the site (e.g., machining ...

Senior Manufacturing Engineer

Saint Louis, MO · On-site

$86K - $118K/yr

Support operators and technicians with clear standard work, work instructions, and training ... Strong knowledge of manufacturing processes and methods relevant to the site (e.g., machining ...

Senior Forward Deployed Engineer- AWS

Saint Louis, MO · On-site

$101K - $139K/yr

Experience operating within hybrid onshore/offshore teams * Familiarity with security, privacy, and ... Machine Learning Engineer (Associate - MLA-C01) or AWS Certified Data Engineer (Associate) * 1+ ...

Provides technical leadership and guidance to site operating groups through investigations ... OR 2+ years in industrial automation software, robotics, or machine vision controls. * Experience ...

Senior Automation Engineer

Maryland Heights, MO · On-site

$100K - $131K/yr

Provides technical leadership and guidance to site operating groups through investigations ... OR 2+ years in industrial automation software, robotics, or machine vision controls. * Experience ...

Senior Automation Engineer

Maryland Heights, MO · On-site

$100K - $131K/yr

Provides technical leadership and guidance to site operating groups through investigations ... OR 2+ years in industrial automation software, robotics, or machine vision controls. * Experience ...

Provides technical leadership and guidance to site operating groups through investigations ... OR 2+ years in industrial automation software, robotics, or machine vision controls. * Experience ...

Sr Packer

Hazelwood, MO · On-site

$13.75 - $16.75/hr

Description Position Summary The Sr Packer performs all shipping, material movement and receiving ... Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining ...

Sr Packer

Hazelwood, MO · On-site

$14.25 - $16.50/hr

Position Summary The Sr Packer performs all shipping, material movement and receiving duties and ... Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining ...

Sr Packer

Hazelwood, MO · On-site

$14.50 - $16.75/hr

Position Summary The Sr Packer performs all shipping, material movement and receiving duties and ... Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining ...

Sr Packer

Hazelwood, MO · On-site

$14.25 - $17/hr

Description Position Summary The Sr Packer performs all shipping, material movement and receiving ... Operating machinery or using tools as required for packaging, such as tape dispensers, maintaining ...

Showing results 21-40

Senior Machine Operator information

See O Fallon, MO salary details

$23.4K

$75.1K

$152.9K

How much do senior machine operator jobs pay per year?

As of Aug 11, 2026, the average yearly pay for senior machine operator in O'Fallon, MO is $75,107.00, according to ZipRecruiter salary data. Most workers in this role earn between $38,800.00 and $96,400.00 per year, depending on experience, location, and employer.

What is the difference between Senior Machine Operator vs Machine Operator?

AspectSenior Machine OperatorMachine Operator
CredentialsTypically requires more experience and sometimes certifications in specific machineryBasic machine operation certifications or training
Work EnvironmentOversees complex machinery, may supervise othersOperates machinery under supervision or standard procedures
ResponsibilitiesMaintains, troubleshoots, and optimizes equipment; mentors junior staffPerforms routine machine operation tasks

The main difference between a Senior Machine Operator and a Machine Operator lies in experience, responsibilities, and leadership. Senior Machine Operators handle more complex tasks, oversee equipment, and often mentor others, whereas Machine Operators focus on routine operation. Both roles require relevant certifications, but the senior position demands more expertise and experience.

What opportunities for career advancement are available to senior machine operators within manufacturing organizations?

Senior Machine Operators often have several pathways for career growth, including moving into supervisory or team lead roles, such as Production Supervisor or Shift Manager. Many organizations value the technical expertise and leadership skills developed in this position, making it possible to transition into roles that focus on process improvement, quality assurance, or training new operators. Additionally, pursuing certifications in advanced manufacturing technologies or equipment maintenance can open doors to specialized roles, such as Maintenance Technician or Process Engineer. Demonstrating initiative and strong problem-solving abilities can further increase advancement prospects within the company.

What is a senior machine operator?

Senior Machine Operators are experienced professionals responsible for operating, maintaining, and troubleshooting industrial machinery in manufacturing or production settings. They oversee machine performance, ensure safety standards are met, and may supervise junior operators. Their role often includes setting up machines, performing quality checks, and making adjustments to optimize efficiency and product quality. Senior Machine Operators typically have several years of hands-on experience and a strong understanding of mechanical systems.

What are the key skills and qualifications needed to thrive as a senior machine operator?

To thrive as a Senior Machine Operator, you need advanced mechanical aptitude, experience with manufacturing equipment, and often a high school diploma or equivalent with additional technical training. Familiarity with CNC machines, PLC systems, and safety certifications like OSHA are commonly required. Strong attention to detail, problem-solving abilities, and effective teamwork are crucial soft skills for this role. These competencies ensure efficient production, minimize errors, and maintain a safe and productive work environment.
What cities near O'Fallon, MO are hiring for Senior Machine Operator jobs? Cities near O'Fallon, MO with the most Senior Machine Operator job openings:

Senior DevOps Engineer

GDIT

Saint Louis, MO • On-site

$126K - $162K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

New


General Dynamics Information Technology rating

7.8

Company rating: 7.8 out of 10

Based on 63 frontline employees who took The Breakroom Quiz

88th of 223 rated it services


Job description

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret/SCI

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

Public Trust/Other Required:

None

Job Family:

Software Engineering

Job Qualifications:

Skills:

Argo CD, GitLab CI/CD, Web Server Management

Certifications:

None

Experience:

6 + years of related experience

US Citizenship Required:

Yes

Job Description:

Deliver simple solutions to complex problems as a Senior DevOps Engineer at GDIT. Here, you'll tailor cutting-edge solutions to the unique requirements of our clients while making the end user's experience your priority and we'll make your career growth ours.


At GDIT, people are our differentiator. As a Senior DevOps Engineer you will help ensure today is safe and tomorrow is smarter. Our work depends on a Senior DevOps Engineer joining our team to support our intel customer in Springfield, VA or St Louis, MO.
HOW A SENIOR DEVOPS ENGINEER WILL MAKE AN IMPACT


A Senior DevOps Engineer will drive faster, more reliable software delivery by strengthening the practices, automation and operational discipline that helps teams ship with confidence. This role will bridge development and operations to remove friction, improve collaboration, and ensure releases reach users with less disruption and greater consistency. In addition, the position will enhance observability, monitoring, and incident response to accelerate issue detection and recovery, while also improving system configuration management and documentation to support scalability, resilience, and long-term operational excellence.
Job Duties:

  • Configure CI/CD for multiple web applications
  • Take source code, dependencies to perform application builds
  • Perform automated testing and security scans
  • Deploy to multiple environments (Dev, Staging, Operations)
  • Responsible for Infrastructure as Code and Configuration Management
  • Author helm charts to deploy resources to OpenShift
  • Manage and document system security, by performing software updates in response to scan findings, document system, architecture to demonstrate security compliance
  • In-depth knowledge, principles, and methods of enterprise solutions.
  • Eight years of experience designing and implementing complex systems in a classified environment. Experience developing strategic system architecture plans.
  • Experience in system and network creation and development.
  • Solid understanding of information processing fundamentals and best practices.
  • Researches, designs, develops, and/or modifies enterprise-wide cloud solutions and/or applications software
  • Designs, develops, codes, tests and debugs highly complex new software products or makes significant enhancements to existing software.
  • Develops and applies advanced methods, theories, and research techniques in the investigation and solution of complex and advanced software applications and problems.
  • Resolves highly complex hardware/software compatibility and interface design considerations.
  • Conducts investigations and tests of considerable complexity.
  • Factors emerging technologies and product supportability into design and implementation.
  • Provides input to staff involved in writing and updating technical documentation such as user manuals, system documentation, and training materials.
  • Advises hardware engineers on machine characteristics that affect software systems, such as storage capacity, processing speed, and input/output requirements.
  • Prepares reports on analyses, findings, and project progress, and presents results to management and/or customer personnel.


WHAT YOU'LL NEED TO SUCCEED:
Skills/Qualifications:

Required:

  • Minimum 6+ years of directly related experience
  • Bachelor's Degree in computer science, computer engineering, systems engineering or any related field/major, or 2 additional years of experience in information technology
  • Proficiency with Linux operating systems
  • Working experience with CI/CD pipelines (Gitlab, Jenkins, CircleCI, or similar)
  • Knowledge of OIDC/OAuth/Auth2 or similar zero-trust identity implementations
  • Experience with ArgoCD and GitOps style operations management
  • Experience with web server management (e.g. DNS, certificate management)
  • Knowledge of HTTP API design standards and best practices
  • Ability to manage networking for web applications (TCP/IP, DNS, and load balancing)
  • Familiarity with Kubernetes and OpenShift, with knowledge of AWS
  • Experience with Infrastructure as Code (one or more of Terraform, OpenShift Containerized Platform, Cloudformation, AWS CDK, Ansible, Chef, Puppet, etc.)
  • Knowledge of including monitoring & logging and network & security for containers
  • Experience deploying and managing databases, interacting with DBs via SQL and ORMs
  • Comfortable writing Python and BASH to create systems tooling
  • Ability to contribute code updates/tweaks to existing code repositories
  • Experience with software system design with the ability to create application architecture diagrams for new applications
  • Experience integrating security components with applications and databases
  • Technical certification Network +, Security +, CISSP, etc.
  • TS/SCI Clearance with CI Polygraph
    Desired:
  • Familiarity with Configuration Management and Request for Change process for review and assessment
  • Experience implementing zero-downtime re-indexing strategies and managing complex Elasticsearch data models (e.g., routing, query-time, de-duplication) within an OpenShift/Kubernetes environment
  • Experience with observability tools such as Prometheus, Thanos, Alloy, Loki, Mimir, Tempo, or Grafana
  • An understanding of reverse proxies such as Nginx, Traefik or Apache HTTP Server (WebGate), HAProxy, or Envoy.
  • Experience with delivery of an integrated solution using Agile software delivery techniques
  • Experience in System Engineering and project/program management.
  • Knowledge and/or experience with NGA enterprise products (NGA CORE).
    Location: On Contractor Site
    US Citizenship Required


GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities
Support: An internal mobility team focused on helping you achieve your career goals
Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY
Explore a career in software development at GDIT and you'll find endless opportunities to grow alongside colleagues who share your dedication to advancing innovation.

The likely salary range for this position is $143,650 - $194,350. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

None

Telecommuting Options:

Onsite

Work Location:

USA VA Springfield

Additional Work Locations:

USA MO St. Louis

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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About General Dynamics Information Technology

Sourced by ZipRecruiter

GDIT is a global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense, and intelligence community. Its 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. The company operates across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber, and application development.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US