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  • Director, Database Engineering (O'Fallon)

    $138k - $230k

     ..., performance tuning, and high availability configuration. Work with service deliver DBA's and application development software to develop database architectures, coding standards, and quality assurance policies and procedures. Create models for new database development... 
    Suggested
    Full time
    Part time
    Worldwide
    Flexible hours

    Missouri Staffing

    O Fallon, MO
    2 days ago

  • Senior Software Engineer-O'Fallon, Missouri (O'Fallon)

     ...: DOE U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. We are unable to sponsor the currently Job Description Java, Spring, and Spring Boot Required. Everything is developed in that Rest API knowledge is a plus Very Mu...... 
    Suggested
    Contract work
    Part time

    Staffing the Universe

    O Fallon, MO
    2 days ago

  • Software Engineer I, Launch Program 2026 - United States (O'Fallon)

     ...reliability, performance, and are driven to deliver solutions that delight our customers. We are looking for talented software engineers to develop advanced technologies and applications that are revolutionizing payments. Software engineers at Mastercard build the systems that... 
    Suggested
    Part time
    Work experience placement
    Internship

    MasterCard

    O Fallon, MO
    2 days ago

  • Senior Software Engineer

    Senior Software Dev Engineers O'Fallon MO (remote FOR NOW but will need to eventually be onsite) We can consider fully remote for a very strong candidate Looking for 2 Senior Software Dev Engineers This is part of
    Suggested
    Remote work

    Samprasoft

    O Fallon, MO
    1 day ago

  • Senior Software Engineer

    $115k - $184k

     ...you're passionate about building great software and ready to grow your career, we'd love to hear from you. Role Hands-on developer who writes high quality, secure code that is modular, functional and testable. Create or introduce, test, and deploy new technology... 
    Suggested
    Full time
    Part time
    Worldwide
    Flexible hours

    Missouri Staffing

    O Fallon, MO
    1 day ago

  • Lead Mainframe Developer (O'Fallon)

     ...Lead Mainframe Developer Location: O'Fallon, MO OnSite Full Time Permanent & Contract Product: Hogan Suite (UMB, CIS, CAMS etc.) Must Have Experience in L2 and L3 Maintenance, Support and Compliances: COBOL, VSAM, JCL, DB2, Assembler Working experience in... 
    Suggested
    Permanent employment
    Full time
    Contract work
    Part time
    Work experience placement

    Staffing the Universe

    O Fallon, MO
    2 days ago

  • Java Software Engineer - O'Fallon (Onsite) (O'Fallon)

    $100k - $105k

     ...scalable microservices while providing technical leadership to both onshore and offshore teams. Responsibilities: Design and develop Java-based microservices architecture Ensure implementation quality, including maintainability, security, and performance best... 
    Suggested
    Temporary work
    Part time
    Flexible hours

    Missouri Staffing

    O Fallon, MO
    2 days ago

  • Lead BizOps Engineer (O'Fallon)

    $112k - $187k

     ...we are responsible for ensuring that our platform is stable and healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase... 
    Suggested
    Full time
    Part time
    Worldwide
    Flexible hours
    Shift work

    MasterCard

    O Fallon, MO
    2 days ago

  • Sr. Java Developer

    Sr. Java Developer Key skills and experience: Strong hands on experience in Java(J2ee). Strong in webservices(microservices), Rest API's, Oracle DB knowledge, Cloud native(preferably AWS or Azure). Ability to drive...
    Suggested

    Damco

    O Fallon, MO
    5 days ago

  • T-38C P3 Software Engineer (Real Time Software Engineer)

    $110.5k - $149.5k

     ...T-38C P3 Software Engineer (Real Time Software Engineer) at BOEING summary: The T-38C P3 Software Engineer at Boeing develops, tests, and maintains real-time embedded flight software for T-38C trainer aircraft. This role involves collaboration with systems integration... 
    Suggested
    Permanent employment
    Full time
    Interim role
    Relocation
    Visa sponsorship
    Work visa
    Flexible hours
    Shift work
    Day shift

    BOEING

    Hazelwood, MO
    3 days ago

  • Java Engineer

    Hybrid Role Need local candidates only. Interview Process Hacke rank Test , l1 & L2 interview. An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud-native applications, microservices, and a modern technology...
    Suggested
    Local area

    Damco

    O Fallon, MO
    4 days ago

  • Senior Email Marketing Developer

    $80k - $120k

     ...Job Title: Senior Email Marketing Developer Reporting to: Marketing Operations Specialist Location: On-Site (OFallon, MO) Position Type: Full-time Exempt Summary: Milestone Marketing Solutions is looking for a marketing professional looking to specialize in data-driven... 
    Suggested
    Full time
    Apprenticeship
    Work at office
    Local area
    Flexible hours

    Automotive Product Consultants Llc

    O Fallon, MO
    5 days ago

  • Lead BizOps Engineer/SRE : Mastercard

     ...business operations is to be the production readiness steward for the platform. This is accomplished by closely partnering with developers to design, build, implement, and support technology services. A business operations engineer will ensure operational criteria like... 
    Suggested
    Local area
    Shift work

    ShiftCode Analytics

    O Fallon, MO
    4 days ago

  • Lead Software Engineer (iOS Developer)

    Job Opportunity In O'Fallon Mo O'Fallon MO (remote for now but will need to eventually be onsite, can relocate and be onsite) We are willing to give someone "a few months" (manager's words) to relocate if they are interested.
    Suggested
    Remote work
    Relocation

    Samprasoft

    O Fallon, MO
    4 days ago

  • Lead Full Stack Engineer (O'Fallon)

    Lead Full Stack Engineer Job Location: O'Fallon, MO (Hybrid onsite 3 days/week) Job Travel Location(s): Must be able to travel to office as needed Positions: 1 Employment Type: C2H Duration: Long Term Key Technology: Java, Full Stack, SQL Job Responsibilities: Lead...
    Suggested
    Part time
    Work at office
    3 days per week

    Veracity

    O Fallon, MO
    2 days ago

  • Weapons Associate Software Engineer

    $86.7k - $117.3k

     ...Weapons Associate Software Engineer at BOEING summary: The Weapons Associate Software Engineer at Boeing develops, integrates, tests, and delivers real-time embedded software for direct attack weapon systems. They collaborate within a multi-discipline team to create... 
    Permanent employment
    Work experience placement
    Interim role
    Relocation
    Visa sponsorship
    Work visa
    Flexible hours
    Shift work
    Day shift

    BOEING

    Saint Charles, MO
    6 days ago

  • Java Backend Developer (In-person Interview)

     ...Title: Java Backend developer Location: O’Fallen, MO (Onsite In-person Interview) Duration: Long Term Onsite In-person Interview An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud-native applications... 

    PURVIEW

    O Fallon, MO
    1 day ago

  • Manager, Software Engineering (O'Fallon)

    $138k - $221k

     ...services in the delivery of internal or market-facing Products, Platforms, or Product bundles Work with business/product owners to develop and deliver on new services to introduce new products and bundles Ensure objectives and development plans are established at the... 
    Full time
    Part time
    Worldwide
    Flexible hours

    MasterCard

    O Fallon, MO
    2 days ago

  • Lead, AI Security Engineer

    $138k - $221k

     ...lifecycle, including secure model training, validation, and deployment. Support security engineers in the evaluation of AI systems being developed and implemented. Compliance and Standards: Keep track of emerging industry standards, regulations, and best practices for AI... 
    Full time
    Part time
    Flexible hours

    MasterCard

    O Fallon, MO
    3 days ago

  • Senior Azure Platform Engineer (O'Fallon)

    Senior Azure Platform Engineer Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using ...
    Part time

    MasterCard

    O Fallon, MO
    2 days ago

  • Software Engineer

     ...Software Engineer at BOEING summary: The Software Engineer at Tapestry Solutions, a Boeing Company, develops and supports software solutions for the Department of Navy Tomahawk Land-Attack Missile program. Responsibilities include troubleshooting, implementing emerging... 
    Worldwide
    Relocation
    Visa sponsorship
    Work visa
    Relocation package
    Flexible hours
    Shift work
    Day shift

    BOEING

    Hazelwood, MO
    2 days ago

  • Solutions Engineer

     ...business needs. This position offers a hybrid schedule with on-site work in Chesterfield, Missouri. Application Development Design, develop, and implement multi-tier, multi-platform applications.Convert legacy systems to modern architectures like .NET or .NET Core,... 
    Weekly pay
    Full time
    Temporary work
    Chesterfield, MO
    2 days ago

  • Site Reliability Engineer

    $40 - $70 per hour

    Job Description: As a Site Reliability Engineer, you will be part of a high-performing operations team focused on automation, performance optimization, and system reliability. You will engage in the full lifecycle of services-from design and deployment to monitoring...
    Hourly pay

    cyberThink

    O Fallon, MO
    2 days ago

  • Site Reliability Engineer

    $75k - $125k

     ...robust, secure, and efficient operations. The candidate should be able to automate daily activities, support deployment pipelines, develop observability for the cloud platforms. This role requires expertise in cloud concepts, advanced DevOps practices, CI/CD pipelines,... 
    Full time
    Part time
    Worldwide
    Flexible hours

    MasterCard

    O Fallon, MO
    4 days ago

  • Sr. SRE/ Performance Engineer

    Based on the skills the Hiring Manager listed as priority, outside of a true Performance Engineer, I am thinking the best profile will be a DevOps Engineer/SRE. Sr. Performance Engineer Hybrid - 3 days onsite (O'Fallon, MO) In-person interview required ...
    Contract work

    ShiftCode Analytics

    O Fallon, MO
    6 days ago

  • Lead Site Reliability Engineer-1

    $112k - $187k

    Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions...
    Full time
    Part time
    Worldwide
    Flexible hours
    Shift work

    MasterCard

    O Fallon, MO
    4 days ago

  • Database Programmer/Developer with Security Clearance

    Title: Database/Programmer Developer Duration: 5-years contract Location: Overland, MO Clearance: Need active DOD Secret Position Description: Minimum 10 years’ experience with databases (Oracle/SQL), program languages, and websites/applications development... 
    Contract work
    Local area

    Optimal Solutions Inc

    Overland, MO
    2 days ago

  • Lead Site Reliability Engineer

    $112k - $187k

     ...we are responsible for ensuring that our platform is stable and healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase... 
    Full time
    Part time
    Worldwide
    Flexible hours

    MasterCard

    O Fallon, MO
    6 days ago

  • Software Engineers -DevSecOps (Associate or Experienced)

    $85k - $115k

     ...software deployment Assists in setting up development and production environments, deployment of application devices Assists in developing best practices/methodologies for provisioning, platform scaling, configuration management, monitoring and troubleshooting... 
    Interim role
    Relocation
    Visa sponsorship
    Work visa
    Flexible hours
    Shift work
    Day shift

    BOEING

    Berkeley, MO
    5 days ago

  • Software Engineers-Simulation (Associate or Experienced)

    $90.1k - $121.9k

     ...engineer will work on various toolsets focused on virtual simulation and experimentation. The selected individual is responsible for developing capabilities for a variety of customers, both internal partners and external contracts. The primary toolsets are the Virtual... 
    Permanent employment
    Work experience placement
    Currently hiring
    Relocation
    Visa sponsorship
    Work visa
    Flexible hours
    Shift work
    Day shift

    BOEING

    Berkeley, MO
    5 days ago