ZipRecruiter

Log In

1

Freelance Developer Jobs in Missouri (NOW HIRING)

Jobgether

$6 - $65/hr

You'll help evaluate and strengthen AI performance across software engineering, coding, and complex ... This is a flexible freelance opportunity suited to experienced developers, technical writers, and ...

New

Jobgether

$11 - $30.65/hr

Our partner is looking for a Spanish Audio Specialist - Freelance AI Trainer Project based in ... Use basic programming literacy to understand JSON structures, functions, methods, structured data ...

Jobgether

Join a high-impact engineering project focused on improving the security, stability, and ... Benefits * Fully remote working arrangement across Europe. * Full-time freelance/contract ...

Reevo

Builder - Head of Creative & Brand

California, MO · On-site

$150 - $190/hr

Experience managing designers, agencies, and freelancers. Nice to haves: * Background in AI, data infrastructure, or developer tools. * Strong network in the B2B SaaS or AI space. What we offer:

Workstream

Location Manager

California, MO · On-site

$60 - $90/hr

... of individuals, freelancers, entrepreneurs, startups, small businesses and remote workers who ... Access to all BLANKSPACES locations, events, community programming, and membership experiences

Jobgether

You will collaborate with researchers, strategists, designers, developers, clients, and senior ... or freelance environment. * Strong portfolio demonstrating polished, high-fidelity UI and web ...

Meridial

$8 - $65/hr

... engineering and evaluation metrics. A bachelor's, master's, or PhD in a science field is ideal; teaching experience, published work, lab or field research, or science communication projects signal ...

Meridial

$65/hr

... engineering and evaluation metrics. A master's or PhD in mathematics or a closely related quantitative field is ideal; peerreviewed publications, teaching experience, research in pure or applied ...

Jobgether

Working with internal teams, external agencies, and developers, you'll combine strategic direction ... Freelance contract structure. * Opportunity to take significant ownership of a growing B2B ...

Jobgether

Partner with internal designers, external agencies, developers, and other creative specialists by ... Freelance contract with a senior-level role and significant influence over brand and creative ...

Jobgether

Working directly with product and engineering teams, you will help shape the systems and processes ... Freelance, full-time engagement. * 100% remote work from anywhere in Europe. * Flexible working ...

next page

Showing results 1-20

All JobsDeveloper JobsFreelance Developer JobsFreelance Developer Jobs in Missouri

Freelance Developer information

See Missouri salary details

$8

$21

$64

How much do freelance developer jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for freelance developer in Missouri is $21.54, according to ZipRecruiter salary data. Most workers in this role earn between $17.60 and $17.60 per hour, depending on experience, location, and employer.

What is a freelance developer?

Freelance developers are self-employed professionals who offer software development services to clients on a project or contract basis, rather than working as permanent employees. They may specialize in areas such as web development, mobile app development, or software engineering. Freelance developers typically manage their own schedules, find their own clients, and are responsible for handling multiple aspects of their business, including invoicing and project management. This career path offers flexibility and the opportunity to work on diverse projects, but also requires strong self-motivation and business skills.

What does a freelance developer do?

A freelance developer performs software programming and web development duties for a client or clients on a contract basis. These responsibilities may include helping build a website, working on design or user experience functionality, and developing code. A freelance developer often works as part of a larger team of developers, programmers, and engineers on a specific project. The qualifications you need for this position include a bachelor’s degree in computer science or a related field, technical skills, and knowledge of one or more programming languages.

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

To thrive as a Freelance Developer, you need strong programming skills, a solid portfolio, and proficiency in relevant languages such as JavaScript, Python, or Java. Familiarity with version control systems (like Git), cloud platforms, and project management tools is typically required, along with certifications in specific technologies as a plus. Excellent communication, self-motivation, and time management set top freelancers apart by ensuring reliable project delivery and client satisfaction. These skills are vital for attracting clients, managing multiple projects, and maintaining a successful independent business.

How do freelance developers typically find and manage multiple clients while maintaining consistent project quality?

Freelance developers often rely on a mix of online platforms, personal networks, and referrals to secure new clients. Managing multiple projects requires strong organizational skills, effective communication, and the ability to set clear expectations with each client. Many freelancers use project management tools to track deadlines and deliverables, ensuring that each client receives consistent quality. Balancing workloads and prioritizing tasks are common challenges, but successful freelancers establish routines and boundaries to maintain high standards across all engagements.

What is the difference between Freelance Developer vs Web Developer?

AspectFreelance DeveloperWeb Developer
CredentialsTypically self-taught or with coding bootcamps; no formal certification requiredOften holds a degree in computer science or related field; certifications like HTML, CSS, JavaScript are common
Work EnvironmentWorks independently, often remotely, with multiple clientsWorks for a company or as a full-time employee, usually in an office or remote
Employer & Industry UsageClients include startups, small businesses, or individuals; freelance platforms are commonEmployers include tech firms, agencies, or corporations; industry standard role

In summary, Freelance Developers operate independently, often with diverse clients and flexible schedules, while Web Developers are typically employed by organizations or agencies, focusing on building websites within a structured environment.

More about Freelance Developer jobs

What are the most commonly searched types of Developer jobs in Missouri?

The most popular types of Developer jobs in Missouri are:

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

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

What job categories do people searching Freelance Developer jobs in Missouri look for?

The top searched job categories for Freelance Developer jobs in Missouri are:

What cities in Missouri are hiring for Freelance Developer jobs?

Cities in Missouri with the most Freelance Developer job openings:

Freelance Developer jobs near you
Infographic showing various Freelance Developer job openings in Missouri as of August 2026, with employment types broken down into 86% Full Time, 3% Part Time, and 11% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $44,811 per year, or $21.5 per hour.

TypeScript Coding Specialist - Freelance AI Trainer Project

Jobgether

On-site, Remote

$6 - $65/hr

Contractor

Medical, PTO

Posted 3 days ago

New

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a TypeScript Coding Specialist - Freelance AI Trainer Project based in Netherlands.

Join a cutting-edge AI training project where your TypeScript expertise will directly contribute to improving the capabilities of advanced language models.
You'll help evaluate and strengthen AI performance across software engineering, coding, and complex technical problem-solving scenarios.
The role covers algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming.
You'll challenge models with realistic TypeScript tasks and assess their reasoning, coding accuracy, quality, and security.
Your insights will help identify failure modes, improve evaluation methods, and make AI-generated technical outputs more reliable.
This is a flexible freelance opportunity suited to experienced developers, technical writers, and open-source contributors who enjoy analyzing and explaining complex concepts.
By contributing your expertise, you'll help shape AI systems designed to support engineers, developers, and learners worldwide.

Accountabilities:
  • Engage with advanced AI models on software engineering tasks and technical scenarios using TypeScript.
  • Evaluate model responses for logical accuracy, coding fluency, correctness, clarity, and overall software quality.
  • Challenge AI systems across algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming.
  • Test areas such as asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and distributed systems debugging.
  • Identify and document reproducible failure modes, logical inconsistencies, coding errors, and areas where model reasoning can be improved.
  • Provide structured feedback and recommendations to strengthen prompt engineering approaches and evaluation metrics.
  • Clearly explain technical reasoning and demonstrate how conclusions are reached when assessing AI-generated solutions.

Requirements:

  • Strong practical expertise in TypeScript and software engineering.
  • Solid knowledge of algorithms, data structures, software architecture, and modern development practices.
  • Experience with frontend and/or backend development, APIs, cloud infrastructure, or systems programming is highly relevant.
  • Familiarity with asynchronous programming, RESTful APIs, object-oriented design, memory management, secure coding, debugging, and distributed systems.
  • A bachelor's, master's, or PhD in computer science, software engineering, or a closely related technical discipline is preferred but not mandatory.
  • Real-world TypeScript development experience, technical writing, or open-source contributions is advantageous.
  • Strong analytical and critical-thinking skills, with the ability to identify subtle technical inaccuracies and evaluate AI-generated code objectively.
  • Excellent metacognitive communication skills, including the ability to clearly explain your reasoning and "show your work."

Benefits:

  • Freelance contract opportunity with flexible remote work.
  • Pay ranging from $6 to $65 per hour, with the exact rate determined by experience, expertise, and geographic location.
  • Opportunity to contribute directly to the development and evaluation of advanced AI systems.
  • Exposure to challenging software engineering problems across a broad range of technical domains.
  • Flexible work suited to experienced developers and technical specialists.
  • Contractors provide their own secure computer and high-speed internet connection.
  • Company-sponsored benefits such as health insurance and paid time off are not included.
How Jobgether works:
We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
We appreciate your interest and wish you the best!
 Why Apply Through Jobgether? 
 
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.
 
 
#LI-CL1
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
apply for this job

Apply