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Senior Software Engineer Jobs in Missouri (NOW HIRING)

Senior Software Engineer

Kansas City, MO · On-site

$119K - $157K/yr

Description Senior Software Engineer - Aerospace & Defense Test Systems Location: Kansas City, MO Job Type: Full-Time Industry: Aerospace, Defense, Automated Test Equipment Citizenship Requirement: U.

New

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Overview Mastercard's Network & Digital Payments group creates meaningful digital payment experiences for consumers, merchants, issuers, and partners at ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Overview Mastercard's Network & Digital Payments group creates meaningful digital payment experiences for consumers, merchants, issuers, and partners at ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who We Are Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who We Are Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a ...

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 ...

Sr. Software Engineer

Hazelwood, MO · On-site

$113K - $149K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Sr. Software Engineer

Hazelwood, MO · On-site

$113K - $149K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Sr. Software Engineer

Hazelwood, MO

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Sr. Software Engineer

Hazelwood, MO · On-site

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Senior Software Engineer

Saint Louis, MO · On-site +1

$119K - $157K/yr

We are looking for a Senior Software Engineer to produce and implement functional software solutions. You will work with upper management to define software requirements and take the lead on ...

Sr. Software Engineer

Hazelwood, MO

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Senior Software Engineer

O Fallon, MO

$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 that ...

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 ...

$94K - $124K/yr

Our partner is looking for a Senior Software Engineer based in Netherlands. This role offers the opportunity to build and evolve scalable software solutions that support the future of global ...

Senior Software Engineer

California, MO · On-site

$131.25 - $175/hr

Senior Software Engineer**WME is building the next generation of internal platforms that power one of the world's leading entertainment companies.We're looking for a Senior Software Engineer who ...

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Showing results 1-20

Senior Software Engineer information

See Missouri salary details

$70.8K

$134.4K

$180.1K

How much do senior software engineer jobs pay per year?

As of Aug 9, 2026, the average yearly pay for senior software 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 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 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 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.

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 the most commonly searched types of Software Engineer jobs in Missouri? The most popular types of Software Engineer jobs in Missouri are:
What cities in Missouri are hiring for Senior Software Engineer jobs? Cities in Missouri with the most Senior Software Engineer job openings:
Infographic showing various Senior Software Engineer job openings in Missouri as of August 2026, with employment types broken down into 87% Full Time, 8% Part Time, and 5% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $134,408 per year, or $64.6 per hour.

Senior Software Engineer

DIT-MCO International

Kansas City, MO • On-site

$119K - $157K/yr

Full-time

Posted 2 days ago

New


Job description

Description

Senior Software Engineer - Aerospace & Defense Test Systems

Location: Kansas City, MO

Job Type: Full-Time

Industry: Aerospace, Defense, Automated Test Equipment

Citizenship Requirement: U.S. Citizenship Required

Senior Software Engineer - Cutting-Edge Technology


Build Something That Matters

DIT-MCO International has been a trusted leader in wire harness testing and aerospace innovation for more than 75 years. We design and manufacture advanced test equipment for aerospace, defense, and industrial customers worldwide. We're looking for a Senior Software Engineer who enjoys developing software, solving problems, and collaborating to build high-quality, effective software solutions. If you enjoy software development, troubleshooting, automation, and continuous improvement for mission-critical testing systems used in demanding environments, we'd love to meet you.


Why Join DIT-MCO?

Work for a stable, employee-focused company with more than 75 years of success

Be part of a collaborative engineering and manufacturing team

Make a direct impact on production quality, efficiency, and continuous improvement

Work on sophisticated aerospace and electronic manufacturing products

Competitive pay, excellent benefits, and opportunities for growth


About the Role

DIT-MCO International is seeking a Senior Software Engineer to design, develop, and maintain software used in advanced automated test equipment. In this role, you will lead software development efforts from concept through deployment, working closely with cross-functional engineering teams to deliver reliable, high-performance solutions.

This position is ideal for an experienced engineer who enjoys solving complex problems, working at the intersection of software and hardware, and taking ownership of technical outcomes.


What You'll Do

  • Research, design, and develop computer and network software and specialized utility programs
  • Analyze user and system requirements to create effective software solutions
  • Lead software projects from concept through completion, ensuring quality and performance
  • Oversee software architecture and design for new product development
  • Develop and implement software using Microsoft .NET and Visual Studio (C#)
  • Support and maintain both new and legacy software used in automated test equipment
  • Work with hardware engineers to integrate software and hardware systems
  • Ensure system specifications and performance requirements are clearly understood and met
  • Collaborate with product management, project management, engineering teams, and customers
  • Develop, deploy, and support software as assigned
  • Guide and mentor team members through knowledge sharing and technical leadership
  • Assist with troubleshooting analog and digital hardware as it relates to software systems


Requirements

Education and Experience

  • Bachelor's degree in a relevant field of engineering, computer science, or equivalent experience.
  • U.S. citizenship.
  • Minimum of five years of experience as a Software Developer, Software Engineer, or similar role.
  • Demonstrated expertise developing web applications within popular frameworks, with a strong command of software design and development in a test-driven environment.
  • Proven experience applying Agile development methodologies, including leading or guiding Agile practices within a team.
  • Advanced proficiency in database management, SQL, and Object-Relational Mapping (ORM) frameworks.
  • Specific and related industry experience, in addition to analog and digital hardware troubleshooting skills.

Skills

  • Experience with Microsoft Office (Excel, Word, Outlook, and Project).
  • Excellent communication skills, both written and verbal.
  • Strong organizational skills and attention to detail, quality, and efficiency.
  • The ability to handle sensitive information discreetly and confidentially.
  • Demonstrate strong problem-solving skills and the ability to make timely and informed decisions.
  • Proficient in both independent work and collaborative team environments.
  • Interact and build relationships with internal personnel at all levels of the organization.
  • Self-motivated and able to manage time and projects effectively.
  • Identify and analyze complex situations, determine potential solutions, and implement strategies to overcome challenges while considering the team's input and best interests.
  • Analog and digital hardware troubleshooting skills.
  • Willingness to learn and adapt to new technologies and processes.


Primary Job Duties

  • Own software architecture and design decisions for new products, from conception through completion.
  • Lead the design of algorithms and flowcharts, in collaboration with other developers.
  • Produce clean, efficient code based on specifications, within a test-driven development environment.
  • Integrate software components into fully functional software systems and oversee verification and deployment.
  • Ensure clear understanding of system specifications and requirements across the project team.
  • Serve as a subject matter expert in essential core technologies.
  • Troubleshoot, debug, and upgrade existing and legacy software.
  • Gather and evaluate user feedback; recommend and drive execution of improvements.
  • Create and maintain technical documentation for reference and reporting.
  • Collaborate with Product Managers, Project Managers, other engineers, other departments, and customers to drive innovation, solve complex problems, and deliver high-quality solutions.
  • Guide and mentor team members by providing constructive feedback, offering growth opportunities, and sharing knowledge and expertise.
  • Lead by example, demonstrating integrity, professionalism, and a strong work ethic.
  • Supervise or train project team members, as necessary.

Work Environment

  • Good or corrected vision and the ability to distinguish colors.
  • Ability to perform the physical activities necessary to carry out job responsibilities, including moving about the work environment and maintaining stationary positions as needed.
  • Manual dexterity is sufficient to operate equipment, tools, and standard office technology.
  • Ability to function in a fast-paced environment, manage multiple priorities, meet deadlines, and effectively handle changing demands.
  • Ability to occasionally lift, carry, push, or pull up to 25-50 pounds, depending on position requirements.