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  • Software Development Engineer

    $140k - $231k

     ...unique set of products and services that help people, businesses and governments realize their greatest potential. Lead Software Development Engineer Overview The Lead Software Development Engineer is a technical leader responsible for driving software architecture, engineering... 
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    Full time
    Part time
    Worldwide
    Flexible hours

    MasterCard

    O Fallon, IL
    2 days ago

  • Senior Software Engineer

    $115k - $184k

     ...products and services that help people, businesses and governments realize their greatest potential. Title And Summary Senior Software Engineer Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers... 
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    Full time
    Part time
    Worldwide
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    MasterCard

    O Fallon, IL
    4 days ago

  • Sr. Software Engineer

     ...Sr. Software EngineerShould have 8+ years of Java test development, primarily as an architect or consultant creating and driving automation test strategy. Experience in frameworks and configurations; reviews analysis to ensure adherence to quality standards. Strong Java... 
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    Keylent Inc

    O Fallon, IL
    2 days ago

  • Senior Network Software Engineer

    $87.1k - $157.45k

    Leidos’ Digital Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for a SeniorNetwork Software Engineer located in the Scott AFB, IL area. The Senior Network Software Engineer will support the development and release of new software tools... 
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    Full time
    Contract work

    Leidos

    Shiloh, IL
    3 days ago

  • Mid-Level Software Engineer

    $87.1k - $157.45k

     ...Description Are you ready to build software that makes a real-world impact? Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you’ll design, develop, and deliver... 
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    Leidos

    Fairview Heights, IL
    1 day ago

  • Software Development Engineer Internship - Fall 2026

    $110.5k - $160k

     ...position, your application will only be considered for our fall Software Development Engineer (SDE) internship roles. Our fall intern roles have start...  ...code directly impact millions of customers worldwide? At Amazon, we hire the best minds in technology to innovate and... 
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    Full time
    Internship
    Work at office
    Worldwide
    Monday to Friday

    Amazon

    Saint Louis, MO
    3 days ago

  • Web Software Developer

    $120k - $160k

     ...Description SAIC is seeking a Web Software Developer to support an IT Service Management effort for USTRANSCOM located at Scott Air...  ..., solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and... 
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    SAIC

    Scott Air Force Base, IL
    17 hours ago

  • Software Engineer-Developer, Phantom Works Weapons (Experienced or Senior)

    $126.65k - $171.35k

    Software Engineer-Developer, Phantom Works Weapons (Experienced or Senior)Company:The Boeing CompanyThe Boeing Company is seeking an Application Software Engineer (Experienced or Senior) to join the Phantom Works Weapons team in St. Charles, MO (St. Louis Area). This teamsupports... 
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    Full time
    Work experience placement
    Currently hiring
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    Visa sponsorship
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    Flexible hours
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    Boeing

    Saint Louis, MO
    3 days ago

  • Mission Software Engineer (Experienced or Senior)

    $126.65k - $171.35k

    Mission Software Engineer (Experienced or Senior)Company:The Boeing CompanyThe Boeing Company is looking for a MissionSoftware Engineer(Experienced or Senior) to join the Phantom Works Open Architecture Systems Integrated Software (OASIS) Solutions team located in Berkeley... 
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    Boeing

    Saint Louis, MO
    3 days ago

  • Senior Fullstack Software Engineer

    $128.05k - $178.5k

     ...Future Role At A Glance Location: Remote Department: Studio Engineering Product Delivery Schedule: Full-time Salary: $128,054.78...  ...We're Seeking ~5 years of professional fullstack software development experience building cloud-native applications in an... 
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    Ascension

    Saint Louis, MO
    3 days ago

  • Senior Fullstack Software Engineer

    $128.05k - $178.5k

     ...Your Future Role At A GlanceLocation: RemoteDepartment: Studio Engineering Product DeliverySchedule: Full-timeSalary: $128,054.78 - $178,...  ...Preferences We're Seeking5 years of professional fullstack software development experience building cloud-native applications in an... 
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    Ascension

    Saint Louis, MO
    17 hours ago

  • Senior Software Developer

    $110k - $120k

     ...Senior Software DeveloperEverforth ECS is seeking a Senior Software Developer to work in our O'Fallon, IL office.ECS Federal LLC is looking...  ..., Continuous Security and Continuous Monitoring. The DevSecOps Engineer is also responsible for driving solutions that meet the... 
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    Immediate start

    ECS Limited

    O Fallon, IL
    2 days ago

  • Software Engineer

    $98.5k - $206.8k

     ...Software EngineerJoin a fast-paced Agile team developing mission-critical geospatial intelligence (GEOINT) applications supporting the...  ...national security missions. Collaborate with software engineers, system architects, and mission stakeholders to deliver innovative... 
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    CACI International

    Saint Louis, MO
    2 days ago

  • Senior Software Engineer 1

    $81.3k - $124.1k

     ...Senior Software EngineerWork Your Magic with us! Start your next chapter and join MilliporeSigma...  ...the Digital and eCommerce technology engine for MilliporeSigma. As a Senior Software...  ...environments (e.g., Google Cloud Platform, Azure, Amazon Web Services, etc.)Familiarity with web... 
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    Flexible hours

    EMD Group

    Saint Louis, MO
    17 hours ago

  • Senior Software Engineer

     ...Job Description As a software engineer, your role will be working on our critical production applications and infrastructure.You will be involved with technology solutions that are new and engaging.You will be in the thick of solving complex issues, architecting solutions... 
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    Work experience placement
    Casual work
    Work at office
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    AVALA Marketing

    Saint Louis, MO
    3 hours agonew

  • Software Engineer

    $75k - $95k

     ...Software EngineerProSight Financial Association, a leading industry organization, is seeking an experienced and results-driven Software Engineer with strong.NET/C# and SQL skills and hands-on experience developing Microsoft Azure cloud solutions. In this role, you'll... 
    Work at office
    Remote work
    Flexible hours

    ProSight Financial Association

    Saint Louis, MO
    3 days ago

  • Senior Software Engineer

     ...to draw crucial insights through data, feeds, analytics, AI and workflow solutions. The Opportunity We are seeking passionate software engineers from mid-level to lead to help us build robust, enterprise-grade solutions that drive real-world impact. Our problems are... 

    LSEG

    Saint Louis, MO
    2 days ago

  • Software Engineer

     ...Software EngineerReinventing Geospatial (RGi) is a leading expert in geospatial solutions for Defense, Intelligence, and Federal clients...  ...to obtain CI Polygraph US Citizenship RequiredAs a Software Engineer, you will:Lead full-stack software development of enterprise applications... 
    Immediate start

    Navstar

    Saint Louis, MO
    2 days ago

  • Software Engineer

     ...Mid-level Software Engineer at DLS EngineeringDLS Engineering is seeking a Mid-level Software Engineer for a full-time position supporting a geospatial customer in St. Louis, Missouri. This is an on-site position.This position supports an exciting modernization initiative... 
    Full time

    DLS Engineering

    Saint Louis, MO
    3 days ago

  • Software Engineer Co-Op

     ...generation of electric motors and integrated controls solutions for our customers. As a Co-op Engineer, you will work with an engineering team to learn practical skills in software controls. You will assist engineers in the technical development, evaluation and... 

    Nidec

    Saint Louis, MO
    2 days ago

  • Senior Software Engineer

     ...Senior Software EngineerWe are seeking a highly skilled Senior Software Engineer to join a top financial client's Business Rules Engineering & Strategy team. This role focuses on developing and maintaining rule-based systems that support critical business decision-making... 
    Long term contract

    RIT Solutions

    Saint Louis, MO
    2 days ago

  • Senior Software Engineer

     ...Senior Software Engineer – Full Stack & Secure SystemsWe are seeking an experienced and driven Senior Software Engineer to support mission-critical federal intelligence initiatives by developing secure, scalable, and modern software solutions in a high-impact environment... 

    Abode Techzone LLC

    Saint Louis, MO
    2 days ago

  • Senior Software Engineer - Geospatial & API Focus (Onsite)

     ...A technology solutions provider is seeking a Senior Software Engineer to join their team in St. Louis, MO. This fully onsite position requires at least 8 years of full stack development experience, with a focus on web services and geospatial systems. The ideal candidate... 
    Flexible hours

    Geodata IT, LLC

    Saint Louis, MO
    3 days ago

  • Senior Software Engineer

     ...A leading engineering firm in St. Louis, Missouri is seeking a Senior Software Engineer for a full-time position requiring an active Top Secret/SCI clearance. This role focuses on full-stack Python development, API development, Kubernetes deployment, and modern DevOps... 
    Full time

    DLS Engineering

    Saint Louis, MO
    2 days ago

  • Senior Software Engineer

     ...Senior Software EngineerReady to contribute to cutting-edge defense technology and shape the future of battlefield superiority? Join our...  ...technology.We are seeking a highly skilled Senior Software Engineer with robust expertise in C++ embedded development for a position... 

    Object Computing

    Saint Louis, MO
    2 days ago

  • Senior Software Engineer

     ...Senior Software EngineerHusch Blackwell LLP is a full-service litigation and business law firm with multiple locations across the United...  ...empowered, then we invite you to apply to our Senior Software Engineer position. This position may be filled remotely or in a hybrid capacity... 
    Full time
    Temporary work
    Work at office
    Remote work
    Flexible hours

    Husch Blackwell

    Saint Louis, MO
    3 days ago

  • Senior Software Engineer

    $120k - $160k

     ...eligible to obtain and maintain a TS/SCI clearance and be willing to undergo a CI polygraph. Overview We are seeking a Senior Software Engineer to support the development of advanced geospatial and data-driven applications within a secure environment. This role focuses... 
    Immediate start
    Relocation package

    Navstar

    Saint Louis, MO
    2 days ago

  • Software Engineer

     ...CD pipeline), Terraform (infrastructure model management)Scripting with bash and API clients using cURL and jqUnderstand and apply software development concepts to machinery that manages the networkUse git and your choice of IDE to define and manipulate... 

    TriOptus LLC

    Saint Louis, MO
    2 days ago

  • Junior Software Engineer

    $69.1k - $141.5k

     ...Junior Software EngineerJoin a fast-paced Agile team developing mission-critical geospatial intelligence (GEOINT) applications supporting...  ...data environments. Collaborate with experienced software engineers, system architects, and mission stakeholders while growing your... 
    Contract work
    Work experience placement
    Flexible hours

    CACI International

    Saint Louis, MO
    3 days ago

  • Software Developer

     ...Software DeveloperTake the next steps to your professional success as Solerity is a recognized leader in providing Information Technology, Engineering Services, Program Management and Consulting Services to the U.S Federal Government and our Intel Community. We enable... 
    For contractors
    Remote work
    Flexible hours

    Solerity

    O Fallon, IL
    17 hours ago