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Senior Software Developer Jobs in St Louis, MO (NOW HIRING)

The Timberline Group

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 ...

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 company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

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 company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Husch Blackwell Llp

Senior Software Engineer

Saint Louis, MO · On-site +1

$114K - $151K/yr

The Senior Software Engineer designs, builds, and maintains the technical systems and application infrastructure that power high-quality, human-centered information experiences. This role is ...

MasterCard

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 ...

Husch Blackwell LLP

Senior Software Engineer

Saint Louis, MO · On-site +1

$114K - $151K/yr

The Senior Software Engineer designs, builds, and maintains the technical systems and application infrastructure that power high-quality, human-centered information experiences. This role is ...

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 company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Stereotaxis

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Shift Type Job Title Senior Software Engineer Education Bachelor's Degree Location Stereotaxis - St. Louis, MO 63101 US (Primary) Career Level Experienced (Non-Manager) Category R&D Date Needed By ...

MasterCard

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 ... native and DevOps technologies (e.g., Docker, CI/CD pipelines, PCF or other cloud platforms ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

As a Senior Software Engineer, you will lead the design and development of cloud-ready applications, microservices, and distributed systems that support large-scale payment processing platforms while ...

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 ... Experience as a full stack developer to include Web Services, Database and Front-End Development

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 ... and DevOps technologies (e.g., Docker, CI/CD pipelines, PCF or other cloud platforms) • ...

Nerdy

Senior Software Engineer

Saint Louis, MO · On-site

$114K - $151K/yr

We require Senior Software Engineers with a strong focus on AI-Native development. Proficiency in utilizing various Agentic coding tools to significantly amplify impact and accelerate implementations ...

MasterCard

Senior Software Engineer

O Fallon, MO · 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 ...

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All JobsSoftware Developer JobsSenior Software Developer JobsSenior Software Developer Jobs in St. Louis, MO

Senior Software Developer information

See St Louis, MO salary details

$14

$60

$85

How much do senior software developer jobs pay per hour?

As of Aug 29, 2026, the average hourly pay for senior software developer in St. Louis, MO is $60.02, according to ZipRecruiter salary data. Most workers in this role earn between $50.96 and $67.31 per hour, depending on experience, location, and employer.

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

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

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

More about Senior Software Developer jobs

What are the most commonly searched types of Software Developer jobs in St. Louis, MO?

The most popular types of Software Developer jobs in St. Louis, MO are:

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For Senior Software Developer jobs in St. Louis, MO, the most frequently searched job titles are:

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The top searched job categories for Senior Software Developer jobs in St. Louis, MO are:

What cities near St. Louis, MO are hiring for Senior Software Developer jobs?

Cities near St. Louis, MO with the most Senior Software Developer job openings:

Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in St. Louis, MO as of August 2026, with employment types broken down into 85% Full Time, 10% Part Time, 1% Temporary, and 4% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $124,834 per year, or $60 per hour.

Senior Software Engineer

The Timberline Group

Saint Louis, MO • On-site, Remote

$119K - $157K/yr

Full-time

Re-posted 12 days ago

Job description

Description of role:
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 operational and technical projects.
In this role, you should be able to work independently with little supervision. You should have excellent organization and problem-solving skills and be comfortable in an Agile Scrum SDLC. If you also have hands-on experience with backend software development, we would like to meet you.
Your goal will be to develop high-quality software that is aligned with user needs and business goals.
Responsibilities
  • Design, implement, review, test, debug, and document high-quality software
  • Discuss, review and identify potential improvements in new features through code review
  • Brainstorm, challenge, support and convey new ideas proposed by yourself and the team
  • Accurately reproduce and address production software deficiencies in a timely manner
  • Efficiently identify, prioritize and complete tasks in agile scrum software development life cycle
  • Produce clean, readable, testable and efficient code by adhering to standards and conventions
  • Automate and optimize business processes via development of scripts, tools and applications
  • Collaborate with internal teams and vendors to maintain and improve products
  • Evaluate and select the most appropriate technologies that meets business requirements
Requirements
  • Proven experience as a Senior Software Engineer
  • Demonstrated ability to work a project from start through completion
  • Must be self-directed and able to work independently
  • Extensive experience in software development
  • Familiarity with Event Driven Architectures
  • Extensive experience in designing and implementing solutions
  • Expert in C# .Net Core
  • Experience with API driven development and REST web services
  • Experience in AWS (Jenkins, Nuget, k8s is a plus)
  • Strong git bash skills
  • Analytical mind with problem-solving aptitude
  • Excellent organizational and leadership skills
  • BSc/BA in Computer Science or other technical degree
Personal Attributes:
  • Open communication
  • Genuine enthusiasm for financial services, digital assets and trading applications
  • Must be a team player that enjoys solving challenging problems
  • Desire to continue learning and constantly improve skills
  • Ability to mentor more junior developers

The Timberline Group
Phone: 636-209-5537
PO Box 385, Lebanon, MO 65536
www.timberlinegrp.com
resumes@timberlinegrp.com
"Delivering quality solutions through quality people"

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