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Senior Software Engineer Jobs in Roxana, IL (NOW HIRING)

Equifax, Inc.

Senior Software Engineer

Saint Louis, MO · On-site

$119.10K - $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 ...

Boeing

Senior Software Engineer-DevSecOps

Berkeley, MO · On-site

$114.70K - $151.20K/yr

The Mission Systems Senior DevSecOps Engineer will be responsible for establishing, configuring, and maintaining the Mission Systems (MS) software development environments across a variety of ...

Equifax, Inc.

Senior Software Engineer

Saint Louis, MO · On-site

$119.10K - $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 ...

AVALA Marketing Group

Senior Software Engineer

Saint Louis, MO · On-site

$119.10K - $157K/yr

We hire software engineers and technology enthusiasts who enjoy being challenged by problems of scale and complexity, with a strong desire to make services better for users. With long term and a ...

Boeing

Software Engineer (Experienced, Senior)

Hazelwood, MO · On-site

$115.50K - $152.30K/yr

Software Engineer (Experienced, Senior) Company: The Boeing Company The Boeing Company is looking for Software Engineers (Experienced, Senior) for a Phantom Works Proprietary program located in ...

Boeing

Software Engineer (Experienced, Senior)

Hazelwood, MO

$115.50K - $152.30K/yr

Software Engineer (Experienced, Senior) Company: The Boeing Company The Boeing Company is looking for Software Engineers (Experienced, Senior) for a Phantom Works Proprietary program located in ...

Boeing

Software Engineer (Experienced, Senior)

Hazelwood, MO · On-site

$115.50K - $152.30K/yr

Software Engineer (Experienced, Senior) Company: The Boeing Company The Boeing Company is looking for Software Engineers (Experienced, Senior) for a Phantom Works Proprietary program located in ...

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Senior Software Engineer information

See Roxana, IL salary details

$72.4K

$137.4K

$184.1K

How much do senior software engineer jobs pay per year?

As of May 31, 2026, the average yearly pay for senior software engineer in Roxana, IL is $137,413.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,500.00 and $154,900.00 per year, depending on experience, location, and employer.

What Is a Senior Software Engineer?

A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.

What are the key skills and qualifications needed to thrive as a Senior Software Engineer, and why are they important?

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.

What are some common challenges Senior Software Engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

What are Senior Software Engineers?

Senior Software Engineers are experienced professionals who design, develop, and maintain complex software systems. They often lead technical projects, mentor junior team members, and make architectural decisions. Their role involves collaborating with stakeholders to understand requirements, ensuring code quality, and staying up-to-date with the latest technologies. Senior Software Engineers are expected to have strong problem-solving skills and a deep understanding of software development best practices.

What is the difference between Senior Software Engineer vs Software Developer?

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared for entry-level to mid-level roles

The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

More about Senior Software Engineer jobs
What are the most commonly searched types of Software Engineer jobs in Roxana, IL? The most popular types of Software Engineer jobs in Roxana, IL are:
What cities near Roxana, IL are hiring for Senior Software Engineer jobs? Cities near Roxana, IL with the most Senior Software Engineer job openings:
Senior Software Engineer jobs near you

Senior Software Engineer (TS/SCI) with Security Clearance

Omni Federal

Saint Louis, MO

$119.10K - $157K/yr

Other

Posted 15 days ago

Job description

Job Description Job Title: Senior 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 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 Senior 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: * BS or equivalent in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree.
* 10+ years of experience in software engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
* Experience designing, developing, and maintaining full-stack applications using modern JavaScript frameworks (React.js) and backend technologies (Java, Spring, Spring Boot).
* Ability to architect and implement scalable, resilient microservices-based systems aligned with business and technical requirements.
* Lead the design and development of RESTful web services and APIs, ensuring high performance, reliability, and security.
* Translate complex business requirements into technical solutions and deliver high-quality, production-ready code.
* Own the full software development lifecycle, including design, development, testing, deployment, and maintenance. Nice to Have: * Experience working in AWS and utilizing specific AWS tooling (S3)
* Experience as a full stack developer to include Web Services, Database and Front-End Development
* Experience working with and developing geospatial information systems (GIS) to include open-source and proprietary geospatial formats Omni Federal is an equal opportunity and affirmative action employer. Omni Federal is committed to administering all employment and personnel actions on the basis of merit and free of discrimination based on race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, or status as an individual with a disability. Consistent with this commitment, we are dedicated to the employment and advancement of qualified minorities, women, individuals with disabilities, protected veterans, persons of all ethnic backgrounds and religions according to their abilities.

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