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

Boeing

Senior Software Engineer-Systems

Berkeley, MO

Senior Software Engineer-Systems Company: The Boeing Company The Boeing Company is currently seeking Senior Software Systems Engineer to support our Phantom Works Open Architecture Systems Integrated ...

Radiance Technologies

Senior Software Engineer

Saint Louis, MO · On-site

$119.10K - $157K/yr

The Senior Software Engineer will perform software activities focused on assisting the Air Force move forward with digital transformation. Successful candidates will have strong problem solving and ...

Boeing

Senior Software Engineer-Systems

Berkeley, MO · On-site

Senior Software Engineer-Systems Company: The Boeing Company The Boeing Company is currently seeking Senior Software Systems Engineer to support our Phantom Works Open Architecture Systems Integrated ...

Boeing

Senior Software Engineer-Systems

Berkeley, MO · On-site

Senior Software Engineer-Systems Company: The Boeing Company The Boeing Company is currently seeking Senior Software Systems Engineer to support our Phantom Works Open Architecture Systems Integrated ...

Radiance Technologies

Senior Software Engineer

Saint Louis, MO · On-site

$119.10K - $157K/yr

The Senior Software Engineer will perform software activities focused on assisting the Air Force move forward with digital transformation. Successful candidates will have strong problem solving and ...

The Timberline Group

SR. SOFTWARE ENGINEER

Saint Louis, MO · Remote

$119.10K - $157K/yr

Coach less senior Software Engineers in processes, techniques and problem solving methods. Specific Skills may include * Custom Application Development: Maintains knowledge and skills in OO Concepts ...

The Timberline Group

SR. SOFTWARE ENGINEER

Saint Louis, MO · On-site

$119.10K - $157K/yr

Coach less senior Software Engineers in processes, techniques and problem solving methods. Specific Skills may include * Custom Application Development: Maintains knowledge and skills in OO Concepts ...

Boeing

Senior Software Engineer-DevSecOps

Berkeley, MO · On-site

$115K - $151.60K/yr

Senior Software Engineer-DevSecOps Company: The Boeing Company The Boeing Company is currently seeking a Senior DevSecOps Engineer to support our Air Proprietary 2 Mission Systems team located in ...

Boeing

Senior Software Engineer-DevSecOps

Berkeley, MO

$115K - $151.60K/yr

Senior Software Engineer-DevSecOps Company: The Boeing Company The Boeing Company is currently seeking a Senior DevSecOps Engineer to support our Air Proprietary 2 Mission Systems team located in ...

Boeing

Senior Software Engineer-DevSecOps

Berkeley, MO

$115K - $151.60K/yr

Senior Software Engineer-DevSecOps Company: The Boeing Company The Boeing Company is currently seeking a Senior DevSecOps Engineer to support our Air Proprietary 2 Mission Systems team located in ...

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $155K/yr

Tapestry Solutions, a part of Boeing Global Services (BGS), is seeking a Senior Software Engineer in Hazelwood, MO for the Department of Navy Tomahawk Land-Attack Missile program. The Tomahawk ...

Armaninollp

Senior Software Engineer

Saint Louis, MO

$119.10K - $157K/yr

We are seeking a highly skilled Full-Stack Senior Software Engineer to join our team. In this role, you will design, develop, and maintain modern web applications across the stack. The ideal ...

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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 with Security Clearance

ZOLON TECH INC.

Saint Louis, MO

$119.10K - $157K/yr

Other

Posted 22 days ago

Job description

Zolon is seeking a Senior Software Engineer to provide comprehensive software engineering support for quarterly software baseline deployments, including new capabilities, adaptive maintenance, and hardware recapitalization. This role ensures the complexity of mission-critical systems is effectively managed through systematic engineering practices.
Key Responsibilities
Apply a structured engineering approach to system and software design to support mission-critical operations.
Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.
Document and demonstrate solutions through documentation, flowcharts, layouts, diagrams, charts, code comments, and clean, well-structured code.
Develop software solutions by analyzing information needs, system workflows, data usage, and operational processes, and by identifying problem areas.
Tailor and deploy software tools, processes, and performance metrics as required.
Provide technical information by collecting, analyzing, and summarizing development and service issues.
Automate tasks using appropriate tools and scripting languages.
Develop architectures that are inherently secure, robust, scalable, modular, and API-centric.
Provide software design recommendations to the Program Manager and Chief Software Engineer.
Coordinate software development activities across product lines.
Ensure product line software development adheres to industry standards and SEI best practices.
Assist the Product Line Program Manager in establishing and tracking software-related metrics.
Report software risks to the Chief Systems Engineer and Chief Software Engineer through the ERB.
Ensure software is properly documented and maintained under Configuration Management (CM).
Required Qualifications
Bachelor’s degree or higher in Computer Science, Information Technology, Management Information Systems, or a related STEM field.
Senior-level experience deploying microservices into cloud environments.
Senior-level experience using software development tools to estimate function points, assess complexity, and develop virtual machines and cloud environments.
Proven senior-level experience with successful software deployments.
Desired Qualifications:
Master’s degree or higher in Engineering, Computer Science, Information Technology, Management Information Systems, or a related STEM field.
Senior-level experience designing, maintaining, and recapitalizing IT systems.
Expertise in refactoring, containerization, and hosting applications on a Linux platform within an Infrastructure-as-a-Service (IaaS) environment.
Demonstrated experience with Model-Based Systems Engineering (MBSE) processes, tools, and languages.

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