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Software Engineer Jobs in Fenton, MO (NOW HIRING)

Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI eligibility) We question. We listen. We adapt. Be honest. Be pragmatic. Omni Federal, a Washington, DC-based ...

Title and Summary Software Engineer II Who is Mastercard Mastercard is a global technology company in the payments industry. We work to connect and power an inclusive, digital economy that benefits ...

Title and Summary Software Engineer II Who is Mastercard Mastercard is a global technology company in the payments industry. We work to connect and power an inclusive, digital economy that benefits ...

Title and Summary Lead Software Engineer Overview Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital economy that makes transactions safe ...

Title and Summary Lead Software Engineer Overview Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital economy that makes transactions safe ...

Title and Summary Lead Software Engineer Overview: Mastercard's Global Credit Authorization team is seeking a Lead Software Engineer (C/C++) to build and enhance high-performance, mission-critical ...

Title and Summary Lead Software Engineer Overview: Mastercard's Global Credit Authorization team is seeking a Lead Software Engineer (C/C++) to build and enhance high-performance, mission-critical ...

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

Title and Summary Software Engineer II Overview Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Our software engineering positions provide you the opportunity to join a team of talented engineers working with leading-edge technology. You are ideal for this position if you are a forward-thinking ...

Senior Software Engineer

Saint Louis, MO

$119K - $157K/yr

Position Description We are seeking a Senior Software Engineer who is passionate about building modern, customer-facing applications and who also brings strength in cloud engineering and software ...

Title and Summary Lead Software Engineer Overview Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital economy that makes transactions safe ...

Showing results 21-40

Software Engineer information

See Fenton, MO salary details

$60.5K

$140.5K

$195.8K

How much do software engineer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for software engineer in Fenton, MO is $140,531.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,300.00 and $164,800.00 per year, depending on experience, location, and employer.

What is a software engineer?

Software Engineers are professionals who design, develop, test, and maintain computer software and systems. They use programming languages, engineering principles, and problem-solving skills to build applications, websites, or software solutions that meet specific needs. Software Engineers may work in a variety of industries, such as technology, finance, healthcare, or entertainment, collaborating with other team members to deliver functional and reliable software. Their role often involves analyzing user requirements, writing code, debugging errors, and continually improving software performance.

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

To thrive as a Software Engineer, you need strong programming skills, problem-solving abilities, and a degree in computer science or a related field. Familiarity with coding languages (such as Python, Java, or C++), version control systems like Git, and knowledge of software development methodologies are typically required. Excellent teamwork, communication, and adaptability distinguish top performers in this role. These skills ensure efficient, high-quality software development that meets user needs and adapts to technological changes.

What are some common challenges software engineers face when collaborating on large development teams?

Software engineers working on large teams often encounter challenges with communication, code integration, and maintaining consistent coding standards. Coordinating across multiple developers can lead to merge conflicts and misunderstandings about project requirements or priorities. Adopting tools like version control systems, regular code reviews, and clear documentation helps mitigate these issues. Building strong collaboration skills and proactively seeking clarification are key to ensuring smooth teamwork and project success.

What is the difference between Software Engineer vs Software Developer?

AspectSoftware EngineerSoftware Developer
CredentialsBachelor's degree in CS or related field, certificationsBachelor's degree often preferred, certifications optional
Work EnvironmentDesigning, developing, testing, and maintaining software systemsWriting, coding, and implementing software applications
Industry UsageUsed across tech, finance, healthcare, and more for system-level rolesCommonly used in app and web development projects
Search IntentUnderstanding roles, responsibilities, and qualificationsLearning about coding, programming, and project work

While both roles involve software creation, Software Engineers typically focus on designing and architecting complex systems, whereas Software Developers mainly concentrate on coding and building specific applications. The roles often overlap, but the Engineer role may require broader system knowledge and design skills.

Are software engineers still in demand?

Yes, software engineers are in high demand across many industries due to ongoing digital transformation, the growth of cloud computing, and the need for software development, maintenance, and cybersecurity skills. The profession offers strong job stability, competitive salaries, and opportunities to work with various programming languages and tools.

Is 25 too late to become a software engineer?

Age is not a barrier to becoming a software engineer; many professionals start careers in tech in their mid-20s or later. Success depends on acquiring relevant skills, such as programming languages and problem-solving, often through coding bootcamps, online courses, or formal education. Employers value skills and experience over age, making it possible to enter the field at 25 or older.

What are the most commonly searched types of Software Engineer jobs in Fenton, MO?

The most popular types of Software Engineer jobs in Fenton, MO are:

What cities near Fenton, MO are hiring for Software Engineer jobs?

Cities near Fenton, MO with the most Software Engineer job openings:

Infographic showing various Software Engineer job openings in Fenton, MO as of August 2026, with employment types broken down into 95% Full Time, 2% Temporary, and 3% Contract. Highlights an 91% In-person, 2% Hybrid, and 7% Remote job distribution, with an average salary of $140,531 per year, or $67.6 per hour.

Software Engineer

Omni Federal

Saint Louis, MO • On-site

Full-time

Posted 29 days ago


Job description

Job Description


Job Title: Software Engineer

Location: St. Louis, MO

Security Clearance: Active TS/SCI (or SCI eligibility)


We question. We listen. We adapt.

Be honest. Be pragmatic.

Omni Federal, a Washington, DC-based software solutions provider founded in 2017, specializes in delivering mission-critical and enterprise solutions to the federal government. Originating from the Department of Defense's software factory ecosystem, Omni focuses on Command and Control, Cybersecurity, Space, Geospatial, and Modeling Simulation. The company leverages commercial technology to enhance the capabilities of the DoD, IC, and their end-users, with innovation driven by its Omni Labs and SBIR Innovation centers. Omni has a presence in Washington D.C., Boston, MA, Colorado Springs, CO, San Antonio, TX, and St. Louis, MO.

Why Omni?

  • Environment of Autonomy

  • Innovative Commercial Approach

  • People over process

We are looking for a passionate and mission-focused Principal Software Engineer to join our Geospatial Center of Excellence. This is a unique opportunity to be part of an exciting initiative at NGA, where modern software development practices are being used to address critical mission challenges for the agency and its users. You will be working with a modern technology stack, rapidly developing intelligence analysis products, and contributing to a culture of innovation. We seek candidates who are energized by modern architectures and eager to solve challenging client problems.

https://trajectorymagazine.com/software-is-core-to-ngas-mission/


Required Skills:  

  • 5+ years of software development experience or 3+ with a Masters Degree

  • Hands-on experience with Python in production application development environments or building large-scale ETL/data pipelines (beyond basic scripting)

  • Experience with containerized application development and deployment using Docker or Podman on Kubernetes/OpenShift environments

  • Experience with Git-based source control and GitLab CI/CD pipelines, including automated testing and deployment

  • Experience with web services architecture, design, and development, including microservice architectures

  • Experience with database design including relational, spatial, and NoSQL databases

  • Experience with Agile methodologies, serving as a Scrum or team lead

  • Active Top Secret clearance with SCI eligibility

  • Bachelor's Degree in Computer Science or related field


Nice to Have:

  • Experience building backend web services using FastAPI or Node.js

  • Experience working with frontend JavaScript technologies (React, TypeScript, Angular, Node.js, etc.). 

  • Experience with React is highly preferred

  • Experience with scientific Python libraries such as TensorFlow, SciPy, or Scikit-learn

  • Experience developing cloud-native applications and services within AWS, including S3, ECR, Lambda, and SQS

  • Experience with Spring applications

  • Experience as a full-stack developer, including Web Services, Database, and Front-End Development

  • Experience working with and developing Geospatial Information Systems (GIS), including open-source and proprietary geospatial formats

, About Omni Federal

Omni Federal, founded in 2017 and headquartered in Washington, DC, is a highly specialized software solutions provider with a robust presence in key locations across the United States, including Boston, MA, Colorado Springs, CO, San Antonio, TX, and St. Louis, MO. Born out of the Department of Defense's software factory ecosystem, Omni has rapidly distinguished itself by delivering both mission-critical and enterprise solutions that enhance the technological capabilities of the federal government. With a focus on areas such as Command and Control, Cybersecurity, Space, Geospatial, and Modeling Simulation, Omni leverages cutting-edge commercial technology tailored to government objectives, improving mission performance and delivering transformative outcomes for the Department of Defense (DoD), Intelligence Community (IC), and their end-users. The company's innovative approach is backed by its Omni Labs and SBIR Innovation centers, where they develop advanced platforms and tools in data mesh, secure connectivity, and intelligent automation.