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Software Developer Iii Jobs in Missouri (NOW HIRING)

$184K - $225K/yr

As a Sr. Software Developer III , you will design, build, and deliver secure, reliable software solutions for a highly visible, mission-critical customer supporting national-level operations. You ...

C# .NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a ... MVC 3 or 4, ASP.NET, JavaScript, HTML, CSS, NHibernate, MS SQL Server, WCF, XML/XSL, SOAP/REST ...

C# .NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a ... MVC 3 or 4, ASP.NET, JavaScript, HTML, CSS, NHibernate, MS SQL Server, WCF, XML/XSL, SOAP/REST ...

SOFTWARE DEVELOPER

California, MO · On-site

$110 - $165/hr

SOFTWARE DEVELOPER CA-REMOTE, US 6 days ago Requisition ID: 1585 Salary Range: $110,000.00 To $165 ... VSolvit is an award winning WOSB, CA CDB, MBE, WBE, and CMMI Level 3 certified company. We offer a ...

Software Engineer III

Saint Louis, MO · On-site

$54.50 - $73.25/hr

Software Engineer III Location: Remote (Must work CST hours) Duration: 6-12+ Months Contract Role Overview Strong professional experience with C# and .NET development . Experience with .NET Framework ...

Software Engineer III

Saint Louis, MO · On-site

$56 - $75/hr

Software Engineer III Location: Remote (Must work CST hours) Duration: 6-12+ Months Contract Role Overview Strong professional experience with C# and .NET development . Experience with .NET Framework ...

Software Developer

Saint Louis, MO · On-site

$107K - $195K/yr

... Software Developer to help enable NGA's Geospatial Intelligence (GEOINT) mission collecting ... provide three-dimensional accuracy of every point in, on, or above the Earth. Primary ...

$184K - $225K/yr

Net Developer III, you will design, build, and deliver secure, reliable software solutions for a highly visible, mission-critical customer supporting national-level operations. You will be part of a ...

(USA) Software Engineer III

Anderson, MO · On-site

$90K - $180K/yr

As a Software Engineer III, you will design and develop AI-driven automation, observability platforms, and internal engineering tools that improve the efficiency, reliability, and scalability of ...

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Software Developer Iii information

See Missouri salary details

$45K

$104.9K

$155.7K

How much do software developer iii jobs pay per year?

As of Aug 25, 2026, the average yearly pay for software developer iii in Missouri is $104,911.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,400.00 and $121,900.00 per year, depending on experience, location, and employer.

What is a software developer III?

A Software Developer III is an experienced software engineer who is responsible for designing, developing, testing, and maintaining software applications. This role typically requires several years of professional experience and a deep understanding of programming languages, software architecture, and development methodologies. Software Developer III professionals often mentor junior team members, lead technical projects, and collaborate closely with cross-functional teams to deliver high-quality software solutions. They are expected to solve complex problems and contribute to the continuous improvement of development processes.

How does a software developer III typically collaborate with cross-functional teams during a project?

As a Software Developer III, you’ll often collaborate closely with product managers, designers, QA engineers, and other developers to deliver high-quality software solutions. Your role may involve leading technical discussions, reviewing code from peers, and providing mentorship to junior developers. Effective communication and the ability to translate technical concepts to non-technical stakeholders are essential, as you'll frequently participate in sprint planning, code reviews, and troubleshooting sessions. This collaborative environment fosters both individual growth and the overall success of the project.

What are the key skills and qualifications needed to thrive as a software developer III, and why are they important?

To thrive as a Software Developer III, you need advanced proficiency in programming languages, software architecture, and problem-solving, typically supported by a bachelor's degree in computer science or related field and several years of professional experience. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications (e.g., AWS Certified Developer) are often required. Strong communication, leadership, and collaboration skills help you work effectively within teams and mentor junior developers. These skills and qualities are essential for delivering complex software solutions, driving innovation, and maintaining high development standards.

What is the difference between Software Developer Iii vs Software Developer Iv?

CriteriaSoftware Developer IiiSoftware Developer Iv
Required CredentialsBachelor's degree in Computer Science or related field; 3-5 years experienceBachelor's or Master's degree; 4-6 years experience
Work EnvironmentTeam-based software development, project-focusedAdvanced projects, mentorship roles, complex problem-solving
Employer & Industry UsageTech companies, software firms, startupsLarge corporations, enterprise software, tech giants
Common Search & Comparison IntentUnderstanding mid-level developer rolesClarifying seniority and responsibilities

The main difference between Software Developer Iii and Software Developer Iv lies in experience, complexity of tasks, and responsibilities. Software Developer Iv typically has more years of experience, handles more complex projects, and may mentor junior developers. Both roles require similar educational backgrounds, but the Iv level is often associated with higher technical expertise and leadership within development teams.

What are popular job titles related to Software Developer Iii jobs in Missouri?

For Software Developer Iii jobs in Missouri, the most frequently searched job titles are:

Infographic showing various Software Developer Iii 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, with an average salary of $104,911 per year, or $50.4 per hour.

Sr. Software Developer III (6681)

MetroStar

On-site

$184K - $225K/yr

Full-time

Re-posted 26 days ago


Job description

As a Sr. Software Developer III, you will design, build, and deliver secure, reliable software solutions for a highly visible, mission-critical customer supporting national-level operations. You will be part of a program focused on rapidly delivering high-quality software while maintaining the highest standards of security, resilience, and operational excellence.

We know that you can't have great technology services without amazing people. At MetroStar, we are obsessed with our people and have led a two-decade legacy of building the best and brightest teams. Because we know our future relies on our deep understanding and relentless focus on our people, we live by our mission: A passion for our people. Value for our customers.

If you think you can see yourself delivering our mission and pursuing our goals with us, then check out the job description below!

What you'll do:

  • Troubleshoot and resolve production issues in a timely and effective manner
  • Work as part of a collaborative, high-performing team delivering technical solutions for mission-critical federal government systems
  • Support O&M and design, develop, and modernize custom enterprise applications
  • Apply secure coding practices across all phases of development
  • Participate in code reviews and Agile ceremonies (planning, stand-ups, retros, etc.)
  • Support and contribute to CI/CD pipelines and automated deployments
  • Troubleshoot and resolve production issues in a timely and effective manner
  • Communicate technical decisions and solutions clearly to both technical and non-technical stakeholders
  • Establish and maintain a high level of customer trust and confidence through technical expertise and professionalism
  • Use creativity and innovation to deliver solutions that meet customer and mission needs

What you'll need to succeed:

  • Active Top Secret with current or previously held SCI access.
  • Bachelor's degree in Computer Science or Software Engineering preferred; relevant experience may substitute.
  • Certification meeting DoD 8140 (e.g., Security+ or higher).
  • Required certification: Azure Developer Associate, AWS Developer Associate, or recent/relevant software development certification.
  • 10+ years of professional software development experience building, testing, and maintaining enterprise applications in mission-critical environments.
  • Expertise in C#, .NET, .NET Framework, Entity Framework, and development using ASP.NET (e.g., WebForms, MVC, REST APIs).
  • Front-end experience with TypeScript, JavaScript, HTML, CSS, Node.js, and Angular and/or React.
  • Back-end experience with database development and administration (e.g., SQL Server, T-SQL)..
  • Experience with source code management tools (e.g., Azure DevOps, GitLab, or GitHub), CI/CD pipelines, and containerization using Docker.
  • Strong understanding of Windows Server, PowerShell scripting, IIS hosting, Kerberos, and OIDC authentication.
  • Ability to contribute immediately with minimal ramp-up in a dynamic, mission-critical environment.

This position is designated as essential personnel supporting continuity of operations and may require work during government shutdowns, emergencies, or other critical situations.

SALARY RANGE:  $184,000 - $225,000 

The salary range for this position is determined based on qualifications, skills, and relevant experience. The final salary offered will be determined based on several factors including: 

  • The candidate's professional background and relevant work experience
  • The specific responsibilities of the role and organizational needs
  • Internal equity and alignment with current team compensation
  • This role is also eligible for additional compensation, subject to the terms and policies of MetroStar, which may include:
    • Performance-based bonuses
    • Company-paid training and/or certifications
    • Referral bonuses