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Senior Software Development Engineer Jobs in Missouri

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... Role Own software delivery tasks (code development, test, deployment, release, configuration and ...

Mastercard, Inc.

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 ... Role • Own software delivery tasks (code development, test, deployment, release, configuration ...

TriOptus LLC

Senior Software Engineer - Java Developer

MO · On-site

$53.50 - $68.25/hr

Senior Software Engineer (Java Developer) Location: O'fallon, Missouri Duration: 24 months Experiece: 7+ years Skills summary: • Advanced in with Linux and Java development (JDK 1.7 or greater ...

bioMerieux

Sr. Software Engineer

Hazelwood, MO

$115K - $152K/yr

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 ...

bioMérieux

Sr. Software Engineer

Hazelwood, MO · On-site

$115K - $152K/yr

Description 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 ...

Biomerieux

Sr. Software Engineer

Hazelwood, MO · On-site

$113K - $149K/yr

Description 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 ...

BioFire Diagnostics

Sr. Software Engineer

Hazelwood, MO

$115K - $152K/yr

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 ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Senior Software Engineer About the Role As part of a ... full software development lifecycle, including design, development, testing, deployment ...

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Senior Software Engineer About the Role As part of a ... full software development lifecycle, including design, development, testing, deployment ...

Esri

As a developer on our team, you will build software leveraging Esri's products and APIs for ... Support and build software that follows industry-standard design patterns, development ...

Omni Federal

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Senior Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Lead the design and development of RESTful web services and APIs, ensuring high performance ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... Software Development & Quality Independently design, build, test, deploy, and maintain highquality ...

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

The successful candidate for the role of Senior Software Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Senior Software Engineer

Hazelwood, MO

$133K - $173K/yr

The successful candidate for the role of Senior Software Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

The successful candidate for the role of Senior Software Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

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All JobsSoftware Development Engineer JobsSenior Software Development Engineer JobsSenior Software Development Engineer Jobs in Missouri

Senior Software Development Engineer information

See Missouri salary details

$70.8K

$134.4K

$180.1K

How much do senior software development engineer jobs pay per year?

As of Jul 17, 2026, the average yearly pay for senior software development engineer in Missouri is $134,408.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,900.00 and $151,500.00 per year, depending on experience, location, and employer.

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

To thrive as a Senior Software Development Engineer, you need deep expertise in software engineering principles, advanced programming skills in languages such as Java, Python, or C++, and a bachelor's or higher degree in computer science or a related field. Familiarity with version control systems like Git, cloud platforms such as AWS or Azure, and experience with CI/CD pipelines are typically required, and certifications in these technologies can be advantageous. Strong problem-solving, leadership, and communication skills help you mentor junior engineers and collaborate effectively across teams. These competencies are critical for delivering robust solutions, driving technical innovation, and ensuring project success in complex engineering environments.

What are some common challenges Senior Software Development Engineers face when leading cross-functional projects?

Senior Software Development Engineers often encounter challenges such as aligning priorities across diverse teams, managing technical debt while delivering new features, and ensuring effective communication among stakeholders. Balancing hands-on coding with mentorship responsibilities and architectural decision-making can also be demanding. Success in this role typically requires strong interpersonal skills, proactive problem-solving, and the ability to adapt to shifting project requirements while maintaining high code quality.

What engineers make $300,000 a year?

Senior Software Development Engineers in high-demand industries or companies, especially those with expertise in areas like machine learning, cloud computing, or cybersecurity, can earn $300,000 or more annually. Compensation often includes base salary, bonuses, and stock options, particularly in large tech firms or startups with significant funding.

Can I make 200k a year as a software engineer?

Senior Software Development Engineers in many regions can earn $200,000 or more annually, especially with experience, specialized skills, and working at large tech companies or in high-cost-of-living areas. Compensation often includes base salary, bonuses, and stock options, and reaching this level typically requires advanced technical expertise and a strong track record.

What are Senior Software Development Engineers?

Senior Software Development Engineers are experienced professionals who design, develop, and maintain complex software systems. They often lead technical projects, mentor junior developers, and ensure software quality and best practices within a team. Their responsibilities include writing code, conducting code reviews, collaborating with cross-functional teams, and solving challenging technical problems. Senior Software Development Engineers typically have several years of industry experience and a deep understanding of software engineering principles.

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

AspectSenior Software Development EngineerSoftware Development Engineer
ExperienceTypically 5+ years, with leadership responsibilitiesEntry to mid-level, 1-3 years of experience
ResponsibilitiesDesigning complex systems, mentoring juniors, leading projectsImplementing features, fixing bugs, collaborating on code
Skills & CertificationsProficiency in multiple programming languages, system design, often with certificationsStrong coding skills, foundational knowledge, less emphasis on certifications
Work EnvironmentOften leads teams, involved in architecture decisionsFocused on individual contributions, team collaboration

The main difference between a Senior Software Development Engineer and a Software Development Engineer lies in experience, responsibilities, and leadership. Seniors typically lead projects and mentor others, while juniors focus on coding and task completion. Both roles are vital in software development teams, with seniors bringing more strategic input and mentorship.

What engineer makes $500,000 a year?

Senior Software Development Engineers at top tech companies can earn $500,000 or more annually, often through a combination of base salary, bonuses, and stock options. Achieving this level typically requires extensive experience, advanced skills in areas like distributed systems or machine learning, and a track record of significant contributions or leadership roles.

Can you make $500,000 as a software engineer?

Senior software development engineers at large tech companies or with extensive experience and specialized skills can earn $500,000 or more annually, often through base salary, bonuses, and stock options. Achieving this level typically requires advanced expertise, leadership roles, or working in high-paying industries or regions with competitive compensation packages.
What are the most commonly searched types of Software Development Engineer jobs in Missouri? The most popular types of Software Development Engineer jobs in Missouri are:
What cities in Missouri are hiring for Senior Software Development Engineer jobs? Cities in Missouri with the most Senior Software Development Engineer job openings:
Infographic showing various Senior Software Development Engineer job openings in Missouri as of July 2026, with employment types broken down into 1% As Needed, 82% Full Time, 14% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $134,408 per year, or $64.6 per hour.
Senior Software Engineer with Security Clearance

Senior Software Engineer with Security Clearance

ZOLON TECH INC.

Saint Louis, MO • On-site

$119K - $157K/yr

Other

Re-posted 8 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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