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Software Developer Contract Jobs in O Fallon, MO

LRS

Software Developer

Maryland Heights, MO · On-site

$50 - $60/hr

LRS Consulting Services is seeking a SQL Developer (w/ CSG & ICOMS exp) for a contract opportunity. This role offers the chance to apply your skills in support of meaningful work for one of our ...

TriOptus LLC

Sr Software Engineer

Lake Saint Louis, MO · On-site

$116K - $153K/yr

Job Title: Sr. Software Developer Location: St. Louis, MO Relevant Experience Needed: 8+ years Contract Duration: 12+ months Experience Summary: * Strong Experience in Core Java , Spring and Web ...

Leonardo DRS

Manager Software Engineering

Bridgeton, MO

$130K - $176K/yr

The software engineers are responsible to design, develop, analyze, document and support testing of ... Federal contract labor categories and contract wage rates, collective bargaining agreements ...

Leonardo DRS

Manager Software Engineering

Bridgeton, MO · On-site

$130K - $176K/yr

The software engineers are responsible to design, develop, analyze, document and support testing of ... Federal contract labor categories and contract wage rates, collective bargaining agreements ...

Leonardo DRS

Manager Software Engineering

Bridgeton, MO · On-site

$130.83 - $176.62/hr

Manage and supervise a software engineering team focused on design, development, analysis ... Several factors can influence the pay scale, including but not limited to federal contract labor ...

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All JobsSoftware Developer Contract JobsSoftware Developer Contract Jobs in O'Fallon, MO

Software Developer Contract information

See O Fallon, MO salary details

$44.9K

$104.6K

$155.3K

How much do software developer contract jobs pay per year?

As of Jul 27, 2026, the average yearly pay for software developer contract in O'Fallon, MO is $104,629.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,200.00 and $121,600.00 per year, depending on experience, location, and employer.

What are the typical work arrangements and expectations for contract Software Developers?

Contract Software Developers are usually hired for specific projects or defined timeframes, which can range from several weeks to multiple months, often working remotely or on-site depending on client needs. They are expected to quickly understand project requirements, deliver code efficiently, and collaborate with both in-house teams and other contractors, maintaining flexibility to adapt to different workflows and tools. Because contract roles may not include the same onboarding experience as permanent positions, self-motivation and strong independent work habits are important. This work arrangement provides valuable exposure to various industries and technologies, often expanding a developer’s professional network and enhancing career versatility.

What are the key skills and qualifications needed to thrive in the Software Developer Contract position, and why are they important?

A successful Software Developer Contract requires strong programming abilities, solid knowledge of software development methodologies, and relevant project or domain expertise, often supported by a degree in computer science or a related field. Familiarity with languages like Java, Python, or JavaScript, as well as tools such as Git, Agile frameworks, and certification in areas like AWS or Scrum, is highly valued. Excellent problem-solving skills, adaptability, effective communication, and an ability to quickly integrate into new teams are crucial soft skills. These competencies enable contract developers to deliver high-quality solutions while efficiently navigating diverse projects and rapidly changing work environments.

What is a Software Developer Contract job?

A Software Developer Contract job is a temporary or project-based position where a developer is hired for a specific duration, typically through a contract agreement. Contractors may work independently, for an agency, or directly with a company to develop, test, and maintain software applications. These roles often offer flexibility but may not include benefits like health insurance or paid time off. Contract developers are usually paid hourly or per project and may work remotely or on-site depending on the employer's needs.

What are the most commonly searched types of Software Developer jobs in O'Fallon, MO? The most popular types of Software Developer jobs in O'Fallon, MO are:
What are popular job titles related to Software Developer Contract jobs in O'Fallon, MO? For Software Developer Contract jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Software Developer Contract jobs? Cities near O'Fallon, MO with the most Software Developer Contract job openings:
Software Developer Contract jobs near you
Infographic showing various Software Developer Contract job openings in O'Fallon, MO as of July 2026, with employment types broken down into 49% Full Time, 17% Temporary, and 34% Contract. Highlights an 84% In-person, and 16% Remote job distribution, with an average salary of $104,629 per year, or $50.3 per hour.
GIS Software Developer

GIS Software Developer

Next Step Systems

Saint Louis, MO • On-site

Full-time

Medical, Retirement, PTO

Posted 21 days ago

Job description

GIS Software Developer, St. Louis, MO
Qualified GIS Software Developer candidates must be able to supply proof of US Citizenship in order to be authorized to perform work or have access to information on this government project. This is NOT a Work From Home / Remote position.
We are seeking a GIS Software Developer to join the team at St Louis, MO. This position offers competitive compensation and remote opportunities during the pandemic (on-site work will be required after the restrictions are lifted).
Responsibilities:
- Be responsible for implementing the feature functionality of the product, using full stack development where possible.
- As a mid-level coder, this labor competency is responsible for maintaining and improving the performance of existing software code, with duties to write and update software code under contract and direction from the assigned Government Product Owner.
- Recommend improvements to existing software applications as necessary.
- Individual shall be capable of performing the software tasks identified in the contract requirements in forming and working on the integrated product team.
Qualifications:
- Bachelor's degree in Computer Science, Engineering, Mathematics or related technical degree or 3 years' experience in related technical field.
- 3 years of experience in full stack development to include Python 3, JavaScript (React), Shell Script, Web services, Database, and micro-service development, with some of that experience in the last 4 years.
- 3 years of experience with Agile and lean philosophies.
- Individual must have domain knowledge and hands-on experience in developing, implementing software programs.
- Demonstrated ability in performing test-driven development, in an Agile software development environment, where built in automated test procedures and continuous integration of software and continuous delivery of software to the Government is the culture. This competency is required to further test and maintain software products to ensure strong functionality and optimization.
- Experience utilizing, creating, and analyzing Geographic Information System (GIS) and other location-based data.
- Experience utilizing, creating, and analyzing GIS and other location-based data.
- Experience with cloud-native platforms for deploying web applications.
- Experience with Continuous Delivery and Continuous Integration (CI/CD) pipeline tools (e.g., PCF, Jenkins) and techniques, test-driven development, and automated testing practices.
- Experience with open-source Geospatial Information Service tools and libraries such as GeoPandas, QGIS and PostGIS.
- Use of and development with at least one common geospatial tools dataset, and operating platform. These may include but are not limited to: Tools: Boundless Spatial suite, Remote View, PostgreSQL, and/or other geospatial databases, QGIS, ArcGIS Desktop, ArcGIS Server, Image Server, and File Geodatabases. Data formats including GDB, SHP, GEOJSON, and similar geo-related formats. Operating Platforms: ESRI, OpenGeo Suite, or similar. Proprietary tool languages, like ArcPy.
- Development of customized code, scripts, modules, macro procedures, and libraries to implement specialized spatial functions using Python3 and SQL.
- Query and management skills with geospatial and non-geospatial PostgreSQL, PostGIS and Structured Query Language (SQL) databases.
- Demonstrated experience with configuration and use of DevOps tools to maintain a functioning build pipeline.
- Demonstrated experience with Git and Git workflows to manage team software development.
- Demonstrated experience with Docker software containerization and workflows.
- Basic experience and familiarity with GIS software(s).
- Demonstrated experience with paired programmed on an Agile team.
- Excellent organizational, verbal and written communication skills.
- Candidate must be able to supply proof of US Citizenship.
Benefits include medical insurance, retirement plan, PTO, etc. Salary: 80K+ DOE. Keywords: St Louis MO Jobs, GIS Software Developer, Python 3, JavaScript, React, Shell Script, Web Services, Agile, Lean, Geospatial, Non-Geospatial, PostgreSQL, PostGIS, SQL, Programmer, Programmer Analyst, Software Engineer, Software Developer, Missouri Recruiters, IT Jobs, Missouri Recruiting
Looking to hire for similar positions in St. Louis, MO or in other cities? Our IT recruiting agencies and staffing companies can help.
We help companies that are looking to hire GIS Software Developers for jobs in St. Louis, Missouri and in other cities too. Please contact our IT recruiting agencies and IT staffing companies today! Phone 630-428-0600 ext 11 or email us at jobs@nextstepsystems.com. Click here to submit your resume for this job and others.
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