474 Results for

Software Engineer Jobs in Florissant, MO

Jobs

New!

Godfrey, IL1 day ago

$70–$80 Per Hour
Temporary
Contractor

Looking for an Engineer Embedded Software 3 to support our RF Software department. This position will serve on-site at Rolling Meadows.

New!

St. Louis, MO4 days ago

$73,450–$132,775

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. January 13, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

St. Louis, MO13 days ago

Or, a Bachelor of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree and a minimum of 10 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work. These may include, but are not limited to: Tools - Boundless Spatial suite, Remote View, PostGRES/PostGIS, Oracle Spatial and/or other geospatial databases, ArcGIS Desktop, ArcGIS Server, Image Server, and File Geodatabases.

New!

St. Louis, MO3 days ago

$125,000–$155,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Represent the Firm in Client Meeting; Supervise Projects from Concept through Completion; Serve as the Technical Lead Delegating work and Mentoring Staff; Provide Design Review and QA/QC.

New!

St. Louis, MOToday

Remote

$100,000–$150,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

St. Louis, MO3 days ago

$80,000–$100,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. With decades of experience, our team has successfully completed billions of dollars in work spanning new construction, complex additions, and renovations across a diverse range of markets.

New!

Hazelwood, MO3 days ago

$90,000–$100,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

St. Louis, MO3 days ago

$60,000–$85,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

St. Louis, MOToday

Remote

$85,000–$122,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Jobot, and/or its agents and contracted partners.

New!

Fenton, MO3 days ago

$67,000–$100,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Retrofits & Upgrades: Assist in modernizing hydraulic press controls, upgrading outdated PLCs, HMIs, motion controllers, and hydraulic servo systems for improved performance and automation.

New!

Fenton, MO3 days ago

$67,000–$100,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Installation & Commissioning: Install and commission press systems at customer sites, ensuring proper operation and compliance with specifications.

New!

Weldon Spring, MO4 days ago

$88,000–$130,000 Per Year

If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to Midland States Bank Human Resources at HR@midlandsb.com. The role ensures scalable, secure, and compliant solutions using the Salesforce Financial Services Cloud platform, supporting business objectives and optimizing system functionality.

New!

St. Louis, MO5 days ago

$110,000–$130,000

Qualifications:Minimum of 2 years engineering experience within Salesforce Cloud including the design, development, and support of implemented Salesforce solutions, preferably Salesforce Financial Services Cloud (FSC), using Apex, Lightning Web Components, APIs, and modern integration frameworks to build scalable functionality, automate processes, and support CI/CD and DevOps deployment practices. Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs.

New!

St Louis, MO5 days ago

This role focuses on delivering electrical protection & control and physical substation designs, ranging from small distribution facility upgrades to large transmission projects. We are recruiting on behalf of a global engineering and consulting client for an Electrical Engineer – Substation to support projects across the U.S. and internationally.

New!

St Louis, MOToday

As a key technical contributor, you will develop and enhance test equipment, systems, and processes – driving improvements in uptime, reliability, and throughput. In this role, you will play a critical part in improving, maintaining, and innovating test systems that ensure the reliability and performance of advanced automotive components.

St Louis, MO24 days ago

$50,000–$60,000 Per Year
Full-time
Employee

Whether you’ve earned a technical degree, gained hands-on programming experience, or worked professionally in industries like finance, healthcare, or insurance – Dev10 is your opportunity to upskill and launch a career in Software Development. Dev10 provides a pathway for motivated learners to gain real-world experience while developing technical skills through immersive training.

New!

St Louis, MOToday

Other responsibilities will include coordination of work with members of design team (including engineers, manufacturing and contractors), provide training to machinery, operations, programming, preventive maintenance and production personnel and support the overall cost reduction initiatives. Rapidly growing client is offering you the opportunity to work with a strong group of engineering professionals who are enjoying a fast-paced and challenging work environment.

New!

Scott Air Force Base, ILToday

$73,450–$132,775

Knowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers. TheImplementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects supporting the Department of Defense networks.

New!

Scott AFB, IL5 days ago

Experience with one or multiple Cisco, Avaya or Oracle voice platforms including Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya Aura Application Server. Demonstrable experience of advanced fault analysis to isolate and diagnose network problems for routing, switching, security and large scale voice implementations.

New!

Scott Air Force Base, ILToday

$59,150–$106,925

Knowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers. The Implementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects supporting the Department of Defense networks.

New!

Scott Air Force Base, ILToday

$59,150–$106,925

Experience with one or multiple Cisco, Avaya or Oracle voice platforms including Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya Aura Application Server. Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations.

New!

Scott Air Force Base, ILToday

$73,450–$132,775

Experience with one or multiple Cisco, Avaya or Oracle voice platforms including Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC) and Avaya Aura Application Server. Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations.

St. Louis, MO30 days ago

$50–$55 Per Hour

Principal-level technical leader within Mobile organization, owning architectural decisions and driving technical strategy across multiple teams. Own end-to-end technical architecture for cross-team initiatives (provisioning, billing, network, customer/agent facing apps).

St. Louis, MO17 days ago

$78,406–$170,000
Full-time
Employee

Huntington Ingalls Industries: Mission Technologies Division is actively searching for a Sr Cloud Engineer to join our team at Moonshot Labs in St Louis, MO, to help the National Geospatial-Intelligence Agency with ensuring the reliability, scalability, and performance of new software applications. LEVEL 5 = 15 years relevant experience with Bachelors in related field; 13 years relevant experience with Masters in related field; 10 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 19 years relevant experience.

St. Louis, MO16 days ago

$150,000–$180,000 Per Year
Full-time
Employee

Qualifications:Minimum of 2 years dedicated engineering experience within Salesforce Cloud including the design, development, and support of implemented Salesforce solutions, preferably Salesforce Financial Services Cloud (FSC), using Apex, Lightning Web Components, APIs, and modern integration frameworks to build scalable functionality, automate processes, and support CI/CD and DevOps deployment practices. Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs.

New!

St. Louis, MO5 days ago

$95,600–$188,400 Per Year

AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.

OFALLON, MO9 days ago

The ideal candidate will have 5 7 years of experience in software development, demonstrating a solid understanding of Java programming and its applications in building robust, scalable software solutions. This role requires a proactive individual who can work collaboratively in a fast paced environment and contribute to the development of high quality software products.

New!

Saint Charles, MO3 days ago

$39.23–$58.85 Per Hour

Maintain and improve current knowledge on the latest technologies relevant to the role regarding algorithms, language, design methodology, third-party development tools, application platforms, hardware compatibility, and operating systems . As a Software Engineer, you will work closely with Senior, Lead, or Principal Software Engineers to design, develop, and maintain software components and products that support H&R Block business applications.

OFALLON, MO29 days ago

Position Title: Staff Software Engineer / Architect – Java Modernization (AWS / Kubernetes). to lead the modernization of a largescale, mission critical Java platform.

Chesterfield, MO25 days ago

$54.53–$62.53 Per Hour

St. Louis, MO30+ days ago

$125,900–$148,100 Per Year

Develop and maintain a secure, reliable, and scalable, and efficient platform spanning back-end persistence and compute, APIs, and web applications • Collaborate with cross-functional teams to design and implement software solutions that meet business requirements • Conduct code reviews and provide constructive feedback to ensure quality and adherence to best practices • Mentor and guide engineers, fostering technical growth and development • Participate in the full software development lifecycle, from requirements gathering through deployment and maintenance • Troubleshoot and resolve complex technical issues • Drive continuous improvement of development processes, tools, and engineering practices. Experience with GraphQL Knowledge of serverless architectures, event-driven systems, and microservices Familiarity with Infrastructure as Code (IaC), including AWS CDK Experience building agentic AI solutions Experience developing software for tax, accounting, or compliance-driven industries such as healthcare or finance Experience building multi-tenant SaaS applications Experience in a technical leadership role.

New!

IL5 days ago

They maintain cutting edge algorithms for power flow in electrical systems used by electrical and power system engineers to assess their electrical grid''s status and plan future load needs to support renewable energy technology like solar and electric vehicles. Our Members have over 18 million end customers (residential and businesses who receive power, internet, television and/or telephone services) that our enterprise software solution enables our Members to compete effectively in the industry, while excelling in customer service.

New!

Saint Louis, MO3 days ago

RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company. A strong working knowledge of: AWS, Azure, or similar cloud platforms, MySQL, PostgreSQL, or SQL Server .

Hazelwood, MO30+ days ago

$66–$73 Per Hour

This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. • Implement current and emerging technologies, tools, frameworks and changes in regulations relevant to software development.

New!

Saint Louis, MO3 days ago

There are no skill silos as team members utilize a broad range of functional and technical skills and are encouraged to expand their functional knowledge and technical capabilities. Actively participate in testing (regression testing, unit testing, code reviews, and assisting analysts with functional testing).

Hazelwood, MO8 days ago

$82,000–$115,000 Per Year

In addition, bioMérieux offers a competitive Total Rewards package that may include: · A choice of medical (including prescription), dental, and vision plans providing nationwide coverage and telemedicine options · Company-Provided Life and Accidental Death Insurance · Short and Long-Term Disability Insurance · Retirement Plan including a generous non-discretionary employer contribution and employer match. As a member of the R&D organization responsible for creating software for the development of innovative in vitro diagnostic solutions, the Senior Software Engineer contributes to the design and delivery of scalable, cloud-native software solutions by implementing modern software development practices, including microservices architecture, CI/CD, and infrastructure as code.

St. Louis, MO30+ days ago

Whether youre passionate about writing clean, maintainable code across the frontend and backend, or youre focused on integrating security into CI/CD workflows, infrastructure as code, and cloud-native environments, we value your ability to work collaboratively across development, operations, and security teams. Epsilon C5I (www.epsilonsystems.com/c5i), a division of Epsilon Systems Solutions, is a 100 percent employee-owned company founded in 1998 with more than 20 locations serving the Department of Defense, Department of Energy, Department of Homeland Security, non-profit and commercial customers.

Hazelwood, MO30+ days ago

Full-time

This job is with Encode, Inc a fully owned subsidiary of Lancesoft We are seeking a Senior Software Engineer in Hazelwood, MO Position Responsibilities: • Ability to manage small team of software developers • Ability to communicate and collaborate with customer representatives and senior leadership • Handles user inquiries, troubleshoot technical issues and user feedback analysis • Implement current and emerging technologies, tools, frameworks and changes in regulations relevant to software development • Execute and document software research and development projects Basic Qualifications (Required Skills/Experience): • Active U.S. Secret Clearance with the ability to obtain TS/SCI • 8+ year of experience with VB.NET or C#.NET (including .NET Framework) • SQL or other relational database • Unit testing frameworks like xUnit, nUnit, or MSTest Preferred Qualifications (Desired Skills/Experience): • Windows Environment (Windows 10/11, Windows Server) • Knowledge of Windows Desktop Development • Project Management Tools (Azure DevOps, Jira, etc.) • Azure DevOps Pipelines or other CI/CD tools • Microservices or RESTful APIs • Agile • Strong mathematical analysis skills or STEM degree • C++ • Security + certification or Computer Science degree

New!

O Fallon, MO3 days ago

We're building a global business-to-business (B2B) technology platform to help businesses of all sizes streamline how they manage payments when buying or selling products and services. Ensure that the systems you create comply with Client engineering best practices and governance models, including security, operations, and Enterprise Architecture requirements .

Bridgeton, MO8 days ago

The Lead C# Software Engineer is responsible for designing, developing, and implementing application enhancements while staying current with modern technologies for application development, information delivery, and relational databases. This role also provides technical leadership to an assigned team of developers.

St. Louis, MO30+ days ago

St. Louis, MO17 days ago

This role is ideal for a full-stack engineer who thrives in fast-paced technical environments, enjoys solving complex engineering challenges, and has experience building cloud-native applications with modern development practices. You will play a key role in designing new capabilities, enhancing existing systems, integrating external services, and collaborating with cross-functional teams to deliver secure and reliable solutions.

St Louis, MO30+ days ago

Beyond our connectivity solutions, we also provide local news, programming and regional sports via Spectrum Networks and multiscreen advertising solutions via Spectrum Reach. Grow Your Career Here We’re committed to growing a workforce that reflects the customers and communities we serve – providing opportunities for employment and advancement to all team members.

Hazelwood, MO30+ days ago

Bachelor's Degree in Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Aerospace Engineering or other applicable technical field; and two years related experience; or equivalent combination of education and experience, or Master’s Degree in Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Aerospace Engineering or other applicable technical field preferred. Application areas include real time simulation; simulation of aircraft systems, navigation, aircraft dynamics; simulator interoperability; simulation software integration with OEM software; simulator software system design; computer systems and information security.

Hazelwood, MO30+ days ago

OFallon, MO30+ days ago

$140,000–$231,000 Per Year

Unlike similar quality/testing roles in other organizations, Quality Engineering position at MasterCard requires firm knowledge and hands on software development and architecture skills on par with software developer to work closely with developers to build test automation, test infrastructure, and perform code analysis/review to enable development quality. Job Description Summary Overview • Quality Engineering team within MasterCard is about creating an ecosystem to build a world beyond waiting for all delivery teams to help achieve time-to-market, quality excellence, and higher customer satisfaction within all verticals including core, emerging payments, and value-added services.

New!

Saint Louis, MO3 days ago

We 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 processes.

New!

Saint Charles, MO3 days ago

The kind of problems we are solving need speed and effective communication, so we think it makes sense to do this work in C++ because speedy communication is key, but we also use Golang and python. We've built a solver platform focused on solving optimization problems – and we are creating a core product API – a bespoke interface to our GPU centric solver.

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Software Engineer Jobs in Florissant, MO

Embedded Software Engineer ASD GLOBAL

Exploitation Specialist/GDAT Software Engineer Leidos

Senior Level Software Developer DCS Corporation

Sr. Mechanical Engineer P.E. Jobot

Roadway Engineer Jobot

Preconstruction Engineer Jobot

PCB Layout Engineer Jobot

Project Engineer Jobot

Geotechnical Engineer (PE required) Jobot

Controls Service Engineer Jobot

Mechanical Service Engineer Jobot

Senior Salesforce Engineer- Financial Services Cloud Midland States Bank

Cloud Platform Engineer II - Salesforce & DevOps Vaco LLC

Electrical Engineer - Substation Gables Search Group

Test Engineer Austin Allen Company, LLC

Entry Level Software Developer Genesis10

Senior Controls Engineer Austin Allen Company, LLC

Implementations Network Engineer III Leidos

Enterprise Voice Engineer II By Light Professional IT Services

Implementations Network Engineer II Leidos

Enterprise Voice Engineer II Leidos

Enterprise Voice Engineer III Leidos

Java Software Developer Tanisha Systems

Cloud Engineer Company Confidential

Cloud Platform Engineer - Salesforce & DevOps Company Confidential

Software Engineer II- Full-stack Developer Deloitte Touche Tohmatsu Ltd

Sr. Software Engineer Yantran LLC

Seasonal, Software Engineer - PT H&R Block

Staff Software Engineer / Architect Java Modernization (AWS / Kubernetes) Yantran LLC

Mid Level Software Engineer HarveStaff

Senior Software Engineer Armanino McKenna LLP

Software Developer III - Distributed Engineering Workstation Power Flow Software Affinegy Inc.

Software Engineer Reinventing Geospatial

Software Engineer-Developer 3 LanceSoft Inc

Software Engineer Leading Utilities Organization

Sr. Software Engineer Biofire

Software Engineer II (SE2 - St. Louis, MO) Epsilon Systems Solutions Inc

Software Engineer-Developer 4 LanceSoft Inc

Sr. Software Engineer YANTRAN LLC

Lead C# Software Engineer duvari group

Senior Software Engineer I (SE4 - St. Louis, MO) Epsilon Systems Solutions Inc

Software Engineer III (SE3 - St. Louis, MO) Epsilon Systems Solutions Inc

Senior Software Engineer Abode Techzone LLC

Software Engineer IV – ERP Finance (Oracle/PLSQL) SPECTRUM

Software Engineer, Senior FlightSafety International

Software Engineer, Senior (Hazelwood, MO, US, 63042) FlightSafety International

Lead, Software Engineer Mastercard Inc

Senior Software Engineer RIT Solutions

Software Developer/Engineer/ Python/Go/C++ MRINetwork

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