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Mid Level Software Engineer Jobs in Chesterfield, MO

Mid-Level Software Engineer

Fenton, MO · On-site

$87K - $157K/yr

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Mid-Level Software Engineer

Columbia, IL · On-site

$87K - $157K/yr

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Mid-Level Software Engineer

Madison, IL · On-site

$87K - $157K/yr

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Mid-Level Software Engineer

Hartford, IL · On-site

$87K - $157K/yr

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Mid-Level Software Engineer

Roxana, IL · On-site

$87K - $157K/yr

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Mid-Level Software Engineer

Venice, IL · On-site

$87K - $157K/yr

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role, you'll design, develop, and deliver modern ...

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Showing results 1-20

Mid Level Software Engineer information

See Chesterfield, MO salary details

$62.8K

$146K

$203.4K

How much do mid level software engineer jobs pay per year?

As of Jul 26, 2026, the average yearly pay for mid level software engineer in Chesterfield, MO is $146,011.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,800.00 and $171,200.00 per year, depending on experience, location, and employer.

What is a Mid Level Software Engineer job?

A Mid Level Software Engineer is a professional with a few years of experience who develops, tests, and maintains software applications. They work independently on tasks, contribute to code reviews, and collaborate with teams to design and implement solutions. Mid-level engineers are expected to write clean, efficient code, troubleshoot issues, and improve system performance. They may also mentor junior developers and participate in architectural discussions. Typically, they have strong problem-solving skills and proficiency in programming languages relevant to their role.

What typical responsibilities can I expect as a Mid Level Software Engineer?

As a Mid Level Software Engineer, you will be involved in designing, coding, testing, and maintaining software applications, often working on both new and existing projects. You’ll collaborate with other engineers, product managers, and QA teams to deliver features that meet business requirements, while also participating in code reviews and contributing to architectural decisions. Your responsibilities may also include troubleshooting bugs, refining development processes, and occasionally mentoring junior engineers. This role typically offers a blend of technical challenge, teamwork, and opportunities for continued skill development.

What are the key skills and qualifications needed to thrive in the Mid Level Software Engineer position, and why are they important?

To thrive as a Mid Level Software Engineer, you need a solid understanding of software development principles, programming languages such as Java, Python, or C#, and a bachelor’s degree in computer science or a related field. Experience with version control systems like Git, familiarity with agile methodologies, and sometimes certifications such as AWS Certified Developer or Microsoft Certified: Azure Developer Associate are advantageous. Strong problem-solving skills, teamwork, and effective communication are standout soft skills in this position. These combined skills enable engineers to deliver high-quality code, collaborate efficiently within development teams, and adapt to evolving project requirements.

What are the most commonly searched types of Software Engineer jobs in Chesterfield, MO? The most popular types of Software Engineer jobs in Chesterfield, MO are:
What are popular job titles related to Mid Level Software Engineer jobs in Chesterfield, MO? For Mid Level Software Engineer jobs in Chesterfield, MO, the most frequently searched job titles are:
What cities near Chesterfield, MO are hiring for Mid Level Software Engineer jobs? Cities near Chesterfield, MO with the most Mid Level Software Engineer job openings:
Infographic showing various Mid Level Software Engineer job openings in Chesterfield, MO as of July 2026, with employment types broken down into 1% Locum Tenens, 95% Full Time, 1% Part Time, and 3% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $146,011 per year, or $70.2 per hour.
Mid-level Software Engineer

Mid-level Software Engineer

DLS Engineering

Saint Louis, MO • On-site

$100K - $105K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 20 days ago


Job description

About DLS Engineering
DLS is an engineering firm with 30 years of Federal Government contracting experience. Our small business efficiencies coupled with a commitment to excellence allow us to provide reliable solutions with integrity for our nation's most critical defense and national security priorities.
Mid-level Software Engineer at DLS Engineering (on-site)
DLS Engineering is seeking a Mid-level Software Engineer for a full-time position supporting a geospatial customer in St. Louis, Missouri. This is an on-site position.
Why this role is a great next step for your career:
This position supports an exciting modernization initiative providing enterprise architectural, engineering, operations and sustainment, modification, and testing of geospatial-intelligence core services. This utilizes secure cloud environments, and a modern agile development methodology making data accessible, discoverable, and deliverable.
St. Louis offers a low cost of living, vibrant cultural scene, and abundance of free attractions and outdoor spaces. It offers a mix of big-city amenities and smaller-town charm, with unique neighborhoods, diverse food options, professional sports teams, and a growing technology sector.
A day in the life:
  • Creating, maintaining, and/or improving the performance of existing software code, with duties to write and update software code and databases under direction from the assigned Government Lead.

When I read the below it sounds like me:
Required Security Clearance: Top Secret/SCI
Required: United States Citizenship
Required Education/Experience:
  • A Master of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems, Cybersecurity, or equivalent technical degree and a minimum of 2 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
  • OR, a Bachelor of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree and a minimum of 4 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, or engineering/development.
  • OR, a minimum, as equivalent to education, of 6 years of experience in software engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work may be substituted for a technical degree.

Required technical skills:
  • Java, JavaScript, or Python enterprise application development from scratch
  • Micro-service architecture
  • Containerization
  • API development/experience with Fast API
  • Test Driven Development (TDD)
  • Continuous Integration/Continuous Delivery
  • Cloud Native Development: AWS, Azure, Google Cloud or similar Cloud Service providers

Other information:
  • We offer a competitive salary and a 401k program with company match.
  • We offer a comprehensive benefits package including health, vision, dental, life, and disability insurance.
  • We offer a generous paid time off package
  • If accommodation is needed with the application and / or the interview process for applicants with disabilities, please contact Human Resources at 757-494-5151.
  • DLS is an E-Verify company.
  • DLS is an equal employment opportunity employer. Qualified applicants will receive consideration without regard to age, race, religion, sex (pregnancy, sexual orientation, gender identity), national origin, or disability. We encourage all qualified applicants to apply. If you believe you have been discriminated against, please contact Barbara Ellison. You also have the right to file a charge of discrimination with the equal employment opportunity commission.
  • Must be able pass a government background check, which will be completed before employment.

The pay range for this role is:
100,000 - 105,000 USD per year (St. Louis, MO)