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Senior Software Engineer Jobs in Missouri (NOW HIRING)

Sr Software Engineer

Lake Saint Louis, MO ยท On-site

$116K - $153K/yr

Job Title: Sr. Software Developer Location: St. Louis, MO Relevant Experience Needed: 8+ years Contract Duration: 12+ months Experience Summary: * Strong Experience in Core Java , Spring and Web ...

Senior, Software Engineer

Cassville, MO ยท On-site

$90K - $180K/yr

Role Summary The (USA) Senior Software Engineer plays a key technical leadership role in designing, developing, and evolving scalable, resilient software solutions that support critical business ...

Senior, Software Engineer

Anderson, MO ยท On-site

$90K - $180K/yr

Role Summary The (USA) Senior Software Engineer plays a key technical leadership role in designing, developing, and evolving scalable, resilient software solutions that support critical business ...

Senior, Software Engineer

Noel, MO ยท On-site

$90K - $180K/yr

Role Summary The (USA) Senior Software Engineer plays a key technical leadership role in designing, developing, and evolving scalable, resilient software solutions that support critical business ...

Senior Software Engineer

O Fallon, MO ยท 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

O Fallon, MO ยท 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

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Overview Mastercard's Network & Digital Payments group creates valued experiences for consumers, and enables merchants and issuers to reach consumers in ...

Senior Software Engineer

O Fallon, MO ยท On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? We work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart ...

Senior Software Engineer

Saint Louis, MO ยท On-site

$114K - $151K/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 ...

Senior Software Engineer

O Fallon, MO ยท On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Overview Mastercard's Network & Digital Payments group creates valued experiences for consumers, and enables merchants and issuers to reach consumers in ...

Senior Software Engineer

O Fallon, MO ยท On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? We work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart ...

Senior, Software Engineer

Cassville, MO ยท On-site

$90K - $180K/yr

As a Senior, Software Engineer, you will: * Review, and understand business and technical needs to get a deep understanding on the solution you would enhance / develop / support * Develop ...

Senior, Software Engineer

Noel, MO ยท On-site

$90K - $180K/yr

As a Senior, Software Engineer, you will: * Review, and understand business and technical needs to get a deep understanding on the solution you would enhance / develop / support * Develop ...

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 ...

Showing results 41-60

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.

Sr Software Engineer

TriOptus LLC

Lake Saint Louis, MO โ€ข On-site

$116K - $153K/yr

Contractor

Re-posted 11 days ago


Job description

Job Title: Sr. Software Developer
Location: St. Louis, MO
Relevant Experience Needed: 8+ years
Contract Duration: 12+ months
Experience Summary:
  • Strong Experience in Core Java, Spring and Web Development
  • Strong Server development and administration
  • Strong experience in Spring, NoSQL data stores
  • Continuous Integration/Deployment - Jenkins, Jenkins Pipelines; build tools such as Maven
  • Understanding of network protocols such as TCP, SSL, HTTPS and SFTP
  • Working knowledge of GIT, ALM (Rally)
  • Experience with deploying and scaling distributed systems on virtual/docker/kubernetes infrastructure as well as Cloud FoundryExperience with Linux and Open Source Software like Apache, Kafka, Hadoop

Good to have:
  • Systems Knowledge (worked on protocols, FTP, SFTP, this would be a plus)
  • Expertise in Web technologies especially AngularJS is a plus
  • Familiarity with installation/configuration automation and scripting (Chef, BOSH)
  • Familiarity with Performance Testing
  • Awareness in security implementations such as X.509 Certificates, SSH Keys, PGP encryption