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Software Engineer Contractor Jobs in St Louis, MO

Amyx, Inc.

Software Engineering Lead

O Fallon, IL · On-site +1

Overview Amyx is seeking a Software Engineering Lead to join our Dept. of Defense client at Scott ... Amyx is a VEVRAA federal contractor and we request priority referral of veterans. Physical Demands ...

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All JobsSoftware Engineer Contractor JobsSoftware Engineer Contractor Jobs in St. Louis, MO

Software Engineer Contractor information

See St Louis, MO salary details

$61.7K

$143.4K

$199.8K

How much do software engineer contractor jobs pay per year?

As of Aug 21, 2026, the average yearly pay for software engineer contractor in St. Louis, MO is $143,426.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,700.00 and $168,200.00 per year, depending on experience, location, and employer.

What is a software engineer contractor?

Software Engineer Contractors are professionals hired on a temporary or project basis to design, develop, and maintain software applications. Unlike full-time employees, they typically work for a predetermined period or on specific projects for a company. Contractors may work independently or through contracting agencies and often have flexibility regarding work hours and location. Their expertise is sought after for specialized tasks, scaling development teams, or covering skill gaps within organizations.

What are the key skills and qualifications needed to thrive as a software engineer contractor?

To thrive as a Software Engineer Contractor, you need advanced programming skills, problem-solving abilities, and a solid understanding of software development lifecycles, often backed by a relevant degree or equivalent experience. Familiarity with source control systems (like Git), cloud platforms, and project management tools, as well as proficiency in key programming languages, is typically required. Strong communication, adaptability, and self-motivation are essential soft skills for collaborating with diverse teams and managing project-based workloads. These skills ensure high-quality deliverables, effective client communication, and successful navigation of varied contract environments.

How does the work structure and team integration typically differ for software engineer contractors compared to full-time employees?

As a Software Engineer Contractor, you will often work on specific projects or deliverables within a defined contract period, which may mean less involvement in long-term planning or company-wide initiatives. Contractors are usually integrated into existing development teams, collaborating closely with full-time engineers, project managers, and QA staff, but may have less access to certain internal resources or benefits. While you can expect to contribute to daily stand-ups, code reviews, and agile sprints, the onboarding process and access to proprietary tools or systems may be streamlined for contractors. This role offers valuable exposure to diverse tech stacks and industries, and successful contracts can lead to extended engagements or full-time offers.

What is the difference between Software Engineer Contractor vs Software Engineer Full-Time Employee?

AspectSoftware Engineer ContractorSoftware Engineer Full-Time Employee
CredentialsTypically requires a relevant degree and technical skills; certifications optionalSame as contractor; often prefers ongoing professional development
Work EnvironmentProject-based, flexible hours, often remote or on-siteSteady, long-term employment, usually on-site or hybrid
Employer & Industry UsageCommon in tech, startups, consulting firmsStandard in large corporations, tech companies, and enterprises
Search & Comparison IntentLooking for short-term or project-based rolesSeeking stable, long-term employment

In summary, Software Engineer Contractors typically work on short-term projects with flexible schedules, while full-time employees enjoy ongoing employment and benefits. Both roles require similar skills and credentials but differ mainly in work arrangement and job stability.

What are popular job titles related to Software Engineer Contractor jobs in St. Louis, MO?

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

What job categories do people searching Software Engineer Contractor jobs in St. Louis, MO look for?

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

What cities near St. Louis, MO are hiring for Software Engineer Contractor jobs?

Cities near St. Louis, MO with the most Software Engineer Contractor job openings:

Software Engineer Contractor jobs near you
Infographic showing various Software Engineer Contractor job openings in St. Louis, MO as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 10% Part Time, and 4% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $143,426 per year, or $69 per hour.

Software Engineering Lead

Amyx, Inc.

O Fallon, IL • On-site, Remote

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 14 days ago

Job description

Overview
Amyx is seeking a Software Engineering Lead to join our Dept. of Defense client at Scott Air Force Base in O'Fallon, IL.
Responsibilities
  • This position requires the ability to support software development and Agile delivery activities.
  • Supports Agile ceremonies, backlog management, and documentation.
  • Coordinates software development support and testing activities.
  • Assists with tool configuration and reporting
  • Software development support: configure/operate/maintain program support tools; assist software license management; analyze help desk tickets; support ad hoc reporting; research HW/SW solutions; support testing of upgrades; coordinate with orgs to address engineering issues; support interoperability certification/assessment processes.
  • Agile development management: support agile delivery processes; organize ceremonies and processes; manage backlogs; gather stakeholder feedback; update requirements tools/workflows; support test/validation/verification activities.
  • Must have the ability to communicate accurate information

Qualifications
Required:
  • Secret Clearance.

Desired:
  • Experience leading multi-team Agile execution (ceremonies, backlog health, stakeholder feedback loops).
  • Experience producing "technical artifacts" (position papers/specifications) consistent with task order expectation.
  • One of the following desertification: SAFe Agilist/SAFe Scrum Master, PMI-ACP

Benefits include:
  • Medical, Dental, and Vision Plans (PPO & HSA options available)
  • Flexible Spending Accounts (Health Care & Dependent Care FSA)
  • Health Savings Account (HSA)
  • 401(k) with matching contributions
  • Roth
  • Qualified Transportation Expense with matching contributions
  • Short Term Disability
  • Long Term Disability
  • Life and Accidental Death & Dismemberment
  • Basic & Voluntary Life Insurance
  • Wellness Program
  • PTO
  • 11 Holidays
  • Professional Development Reimbursement

Please contact talent@amyx.com with any questions!
Amyx is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sexual orientation, gender identity, status as a protected veteran, or any other characteristic protected by law. Amyx is a VEVRAA federal contractor and we request priority referral of veterans.
Physical Demands
Employee needs to be able to sit at a workstation for extended periods; use hand(s) to handle or feel objects, tools, or controls; reach with hands and arms; talk and hear. Most positions require ability to work on desktop or laptop computer for extended periods of time reading, reviewing/analyzing information, and providing recommendations, summaries and/or reports in written format. Must be able to effectively communicate with others verbally and in writing. Employee may be required to occasionally lift and/or move moderate amounts of weight, typically less than 20 pounds. Regular and predictable attendance is essential.

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