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Senior Software Engineers Jobs in Missouri (NOW HIRING)

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

This role is for a Senior Software Engineer who will contribute to the design, development ... engineers, architects, DevOps engineers, product owners, and program teams to understand ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

This role is for a Senior Software Engineer who will contribute to the design, development ... Collaborate with software engineers, architects, DevOps engineers, product owners, and program ...

MasterCard

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 ... Mentor and coach engineers through technical leadership, knowledge sharing, and engineering best ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... other engineers. Role As a Senior Software Engineer, you will: • Design, develop, test, deploy, and support scalable software solutions that power Mastercard's payment processing ecosystem. • ...

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Senior Software Engineers operate with high autonomy, contribute across the full software development lifecycle, and are expected to raise the technical bar for the team through code quality, system ...

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 ...

247Hire

Oracle Senior Software Engineer

California, MO · On-site

$109K - $144K/yr

Seeking an Oracle Senior Software Engineer to join a team focused on implementing innovative ... engineers to integrate the various components of the system Identify, analyze, and resolve ...

247Hire

Oracle Senior Software Engineer

California, MO · On-site

$120 - $160/hr

Seeking an Oracle Senior Software Engineer to join a team focused on implementing innovative ... Collaborate with other software engineers to integrate the various components of the system

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... with engineers and product partners to design, build, test, and enhance solutions that support the movement of transactions around the world. Role As a Senior Software Engineer, you will: Design ...

247Hire

Oracle Senior Software Engineer

California, MO · On-site

$109K - $144K/yr

Seeking an Oracle Senior Software Engineer to join a team focused on implementing innovative ... engineers to integrate the various components of the system Identify, analyze, and resolve ...

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 ... engineers and contribute to knowledge sharing across teams Evaluate and recommend tools ...

BioFire Diagnostics

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 ...

bioMerieux

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 ...

bioMérieux

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 ...

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Senior Software Engineers information

What is the difference between Senior Software Engineers vs Software Developers?

AspectSenior Software EngineersSoftware Developers
Required CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's degree in CS or related field; experience varies, often less than 5 years
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, fixing bugs
Employer & Industry UsageTech companies, startups, enterprise firmsWide range of industries, including tech, finance, healthcare
Common Search & ComparisonOften compared for experience level and responsibilitiesMore entry to mid-level roles, less leadership focus

Senior Software Engineers typically have more experience, take on leadership roles, and handle complex system design, whereas Software Developers focus on coding and feature development. The two roles often overlap but differ mainly in responsibility level and scope of work.

What are the most commonly searched types of Software Engineers jobs in Missouri?

The most popular types of Software Engineers jobs in Missouri are:

What cities in Missouri are hiring for Senior Software Engineers jobs?

Cities in Missouri with the most Senior Software Engineers job openings:

Senior Software Engineers jobs near you
Infographic showing various Senior Software Engineers job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, and 5% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution.

Senior Software Engineer - C#

The Timberline Group

Chesterfield, MO • On-site, Remote

$121K - $159K/yr

Full-time

Re-posted 8 days ago

Job description

Our growing organization is adding a Sr SE to the team and is looking for someone who enjoys being taken great care of as an employee and who enjoys delivering results on challenging and rewarding projects. Our Senior Software Engineers design and implement new systems and features, as well as modify and maintain existing systems to support new business needs and/or technology changes. The Senior Software Engineer engages with internal stakeholders, other development resources, technical delivery teams and vendors to ensure the successful design, development, and delivery of software-driven solutions.
The Senior Software Engineer will help drive the software change and release management process, assisting with the overall maturity of the software development lifecycle.
This role requires an experienced C# Software Engineer to integrate, enhance and optimize the application environment including eCommerce and existing applications.
Responsibilities
  • Contribute to the ongoing execution of applications and services, aligning closely with the requirements identified to meet business needs.
  • Design, develop, modify, implement, and support software components anywhere in the software
  • stack.
  • Participate in the development and continued integration of our eCommerce platform
  • Participate in the continuous development and improvement of the application environment
  • Remain current on new technologies and available vendor packages, evaluating and making recommendations as necessary.
  • Assist in architectural design, task planning, and project estimation.
  • Provide ongoing support for skill/knowledge development through advice, coaching, and training
  • opportunities.
  • Identify improvements in SDLC, support best practices and help implement new processes.
  • Work in close partnership with cross-functional teams and management.

Requirements
  • Minimum 7 years of development experience
  • Minimum 5 years C# development experience
  • Minimum 5 years' experience with Microsoft SQL Server
  • Minimum 5 years UI dev experience with a JavaScript flavor
  • Prefer (not require) Blazor dev experience
  • Demonstrated experience in developing architectural approaches for greenfield projects.
  • Ability to analyze and support existing projects as needed
  • Broad experience designing, developing, and deploying enterprise software projects
  • Ability to provide in-depth evaluation and analysis of unique complex technological issues.
  • Excellent analytical and problem-solving skills
  • Ability to identify possible solutions and related pros/cons of each option
  • Strong written and verbal communication skills.
  • Ability to work as part of a team and independently

The Timberline Group
Phone: 636-209-5537
PO Box 565, Sullivan, Mo 63080
www.timberlinegrp.com
resumes@timberlinegrp.com
"Delivering quality solutions through quality people"

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