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Freelance Full Stack Machine Learning Engineer Jobs in St Louis, MO

Worky

Full Stack Software Engineer

Saint Louis, MO · On-site

Our projects range from data collection to advanced deep learning, leveraging tools like Python ... As a Full Stack Software Engineer, you will... * Develop, deploy, and maintain cloud-based services ...

Phase2 Technology

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

As a machine learning engineer on our Defense Technology team, you'll train, test, deploy, and maintain models that learn from data to create real‑world, mission‑critical impacts. In this role ...

Leidos

Journeyman Full Stack Engineer

Saint Louis, MO

$69K - $125K/yr

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment ...

Leidos

Journeyman Full Stack Engineer

Saint Louis, MO · On-site

$69K - $125K/yr

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment ...

Leidos

Journeyman Full Stack Engineer

Saint Louis, MO · On-site

$69K - $125K/yr

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment ...

Leidos

Journeyman Full Stack Engineer

Saint Louis, MO · On-site

$69K - $125K/yr

The Leidos National Solutions Division has an exciting opportunity for a Journeyman Full Stack Engineer to assist with the software development, maintenance, integration, deployment, and sustainment ...

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All JobsFull Stack Machine Learning Engineer JobsFreelance Full Stack Machine Learning Engineer JobsFreelance Full Stack Machine Learning Engineer Jobs in St. Louis, MO

Freelance Full Stack Machine Learning Engineer information

See St Louis, MO salary details

$43.3K

$131K

$185.2K

How much do freelance full stack machine learning engineer jobs pay per year?

As of Sep 12, 2026, the average yearly pay for freelance full stack machine learning engineer in St. Louis, MO is $131,028.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,900.00 and $153,600.00 per year, depending on experience, location, and employer.

What is the difference between Freelance Full Stack Machine Learning Engineer vs Freelance Data Scientist?

AspectFreelance Full Stack Machine Learning EngineerFreelance Data Scientist
CredentialsProficiency in programming, machine learning, and full stack developmentStrong statistical, analytical, and programming skills, often with data analysis certifications
Work EnvironmentDevelops and deploys ML models, works on both front-end and back-end systemsAnalyzes data, builds models, and provides insights, mainly focusing on data analysis
Industry UsageUsed in tech, finance, healthcare for deploying ML solutionsUsed across industries for data analysis, reporting, and predictive modeling

Freelance Full Stack Machine Learning Engineers focus on building and deploying machine learning models within full stack applications, combining software development with ML expertise. Freelance Data Scientists primarily analyze data and create models for insights. While both roles require programming skills, the engineer's role emphasizes deployment and integration, whereas the data scientist's role centers on analysis and interpretation.

What are the most commonly searched types of Full Stack Machine Learning Engineer jobs in St. Louis, MO?

The most popular types of Full Stack Machine Learning Engineer jobs in St. Louis, MO are:

What are popular job titles related to Freelance Full Stack Machine Learning Engineer jobs in St. Louis, MO?

For Freelance Full Stack Machine Learning Engineer jobs in St. Louis, MO, the most frequently searched job titles are:

What job categories do people searching Freelance Full Stack Machine Learning Engineer jobs in St. Louis, MO look for?

The top searched job categories for Freelance Full Stack Machine Learning Engineer jobs in St. Louis, MO are:

What cities near St. Louis, MO are hiring for Freelance Full Stack Machine Learning Engineer jobs?

Cities near St. Louis, MO with the most Freelance Full Stack Machine Learning Engineer job openings:

Freelance Full Stack Machine Learning Engineer jobs near you
Infographic showing various Freelance Full Stack Machine Learning Engineer job openings in St. Louis, MO as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 74% Full Time, 22% Part Time, and 2% Contract. Highlights an 85% Physical, 2% Hybrid, and 13% Remote job distribution, with an average salary of $131,028 per year, or $63 per hour.

Software Engineer (Senior .NET / Full-Stack Engineer)

Saint Louis, MO • On-site

Stellar IT Group
See more jobs at Stellar IT Groupexternal

Contractor

Re-posted 9 hours ago

Job description

Overview:
Position: Software Engineer (Senior .NET / Full-Stack Engineer)
Location: Remote
Duration: 6+ Months Contract
Role Overview
We are seeking highly skilled Senior .NET / Full-Stack Engineers with strong AWS and secure-coding expertise. This role is critical in investigating vulnerability findings at the code level, determining root causes, implementing secure remediations, testing changes, and deploying them through Regions' development pipeline. Candidates must demonstrate deep technical proficiency in backend and full-stack development, combined with a strong understanding of secure coding practices and cloud-native architectures.
Key Responsibilities
  • Investigate and analyze vulnerability findings at the code level.
  • Identify root causes and design secure remediation strategies.
  • Implement fixes in C#/.NET and related frameworks, ensuring compliance with secure coding standards.
  • Conduct thorough testing of remediated code to validate effectiveness and stability.
  • Deploy secure solutions through CI/CD pipelines into production environments.
  • Collaborate with product owners, architects, and cross-functional teams to ensure secure delivery.
  • Contribute to API security, secure design reviews, and best practices documentation.
  • Support continuous improvement of secure coding standards and vulnerability management processes.
Required Skills
  • Strong expertise in C# / .NET, ASP.Net, React, REST API, SQL.
  • Hands-on experience with AWS services (Lambda, S3, SQS, DynamoDB).
  • Proficiency with Git, CI/CD pipelines, and secure deployment practices.
  • Demonstrated knowledge of secure coding principles and API security.
  • Ability to take vulnerabilities from finding through remediation and deployment.
Preferred Skills (Strong Pluses)
  • Experience with PostgreSQL databases.
  • Familiarity with Harness for CI/CD orchestration.
  • Exposure to GitHub Copilot for AI-assisted development.
  • Background in secure software delivery within enterprise environments.
Qualifications
  • 7+ years of professional software engineering experience.
  • Proven track record in secure coding, vulnerability remediation, and production deployment.
  • Strong problem-solving skills and ability to work independently in a fast-paced environment.
  • Excellent communication and collaboration skills to work across distributed teams.

Skills:
.NET,AWS,C#,CODING

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