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Full Stack Developer Jobs in O Fallon, MO (NOW HIRING)

Leidos LLC

Journeyman Full Stack Developer

Saint Louis, MO · On-site

$70 - $126/hr

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 ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful candidate will also provide best practices to design single-page architecture (SPA) applications and micro ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful candidate will also provide best practices to design single-page architecture (SPA) applications and micro ...

CYNET SYSTEMS

Java Full Stack Developer

Saint Louis, MO · On-site

$50/hr

Job Overview: Requirement/Must Have: * 5+ years of experience in Java. * Skills in developing applications using multi-tier architecture. * Knowledge of GCP/Any cloud. * Java/JEE, Spring, Spring boot ...

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All JobsFull Stack Developer JobsFull Stack Developer Jobs in O'Fallon, MO

Full Stack Developer information

See O Fallon, MO salary details

$22

$55

$80

How much do full stack developer jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for full stack developer in O'Fallon, MO is $55.44, according to ZipRecruiter salary data. Most workers in this role earn between $46.11 and $63.85 per hour, depending on experience, location, and employer.

What is a full stack developer?

A Full Stack Developer is a software professional who is skilled in both front-end (client side) and back-end (server side) development. They are capable of designing, building, and maintaining complete web applications or systems, handling everything from user interfaces and databases to server logic and APIs. Full Stack Developers often work with a range of programming languages and frameworks, such as JavaScript, HTML/CSS, Node.js, Python, and SQL, among others. Their versatility allows them to contribute to multiple stages of the software development lifecycle, making them valuable assets to development teams.

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

To thrive as a Full Stack Developer, you need expertise in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Python, or Java) and a solid understanding of web development principles, often supported by a relevant degree or coding bootcamp experience. Familiarity with frameworks like React or Angular, back-end environments like Node.js or Django, version control systems like Git, and possibly cloud platforms is typically required. Strong problem-solving, communication, and collaboration skills distinguish excellent developers, allowing them to work effectively in team environments and with stakeholders. These technical and soft skills are vital for building, maintaining, and optimizing complex, user-friendly web applications that meet business needs.

What are some common challenges full stack developers face when working on cross-functional teams?

Full Stack Developers often collaborate with designers, backend engineers, project managers, and QA testers, which can introduce challenges like aligning on project requirements and managing different technical perspectives. Coordinating between frontend and backend tasks while ensuring seamless integration is another common hurdle. Additionally, staying up-to-date with evolving technologies on both ends of the stack requires strong time management and continuous learning. Effective communication and adaptability are key to overcoming these challenges and delivering cohesive solutions.

What is the difference between Full Stack Developer vs Front End Developer?

AspectFull Stack DeveloperFront End Developer
SkillsProficient in both front-end and back-end technologies, including HTML, CSS, JavaScript, server-side languages, and databases.Specializes in client-side technologies like HTML, CSS, JavaScript, and frameworks such as React or Angular.
Work EnvironmentWorks on both server and client-side development, often handling entire project stacks.Focuses primarily on designing and implementing user interfaces and user experience.
Common UsageUsed in full project development, especially in startups and small teams.Primarily involved in UI/UX design and front-end implementation in larger teams.

While both roles require strong web development skills, Full Stack Developers handle both front-end and back-end tasks, providing a comprehensive approach to web projects. Front End Developers focus solely on creating engaging and responsive user interfaces. Understanding these differences helps employers and developers choose the right role for their project needs.

Is full stack developer still in demand?

Full stack developers are currently in high demand due to their ability to work on both front-end and back-end development, with skills in frameworks like React, Angular, Node.js, and database management. The role remains essential across industries, especially as companies prioritize versatile developers who can adapt to evolving technologies.

What will a full stack developer do?

A full stack developer designs, develops, and maintains both the front-end and back-end components of web applications. They work with languages like JavaScript, HTML, CSS, and server-side technologies, often using frameworks and tools such as React, Node.js, and databases. Full stack developers are responsible for ensuring seamless integration and functionality across all parts of a web project.
More about Full Stack Developer jobs

What cities near O'Fallon, MO are hiring for Full Stack Developer jobs?

Cities near O'Fallon, MO with the most Full Stack Developer job openings:

Full Stack Developer jobs near you
Infographic showing various Full Stack Developer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 85% Full Time, 10% Part Time, 4% Contract, and 1% Nights. Highlights an 86% Physical, 3% Hybrid, and 11% Remote job distribution, with an average salary of $115,309 per year, or $55.4 per hour.

Sr. Full Stack Engineer

Stellar IT Group

Saint Louis, MO • On-site

Full-time

Posted 18 days ago

Job description

Overview:
Sr. Full Stack Engineer
Remote
Long Term Contract
We are seeking a Senior Full Stack Engineer with strong experience building modern enterprise applications using C#/.NET 8, ASP.NET Core, EF Core, SQL Server, Angular, TypeScript, and Azure. The ideal candidate will have hands-on experience with Clean Architecture, DDD, CQRS/MediatR, and AI-assisted development tools.
Key Responsibilities & Requirements
  • Develop scalable full-stack applications using .NET 8, ASP.NET Core, EF Core, and SQL Server.
  • Apply Clean Architecture, Domain-Driven Design (DDD), and CQRS/MediatR patterns.
  • Build and integrate Azure services including Service Bus, Key Vault, Azure AD, and Table Storage.
  • Develop modern front-end applications using Angular 14+ and TypeScript.
  • Effectively leverage AI development tools such as Devin.AI, Claude, Rovo, and similar tools.
  • Work within environments using Azure DevOps CI/CD, xUnit, and legacy monolith-to-microservices modernization.

Nice to Have:
  • Single-SPA / Micro Frontends
  • Kendo UI
  • EBICS
  • Octopus Deploy
  • Liquid Templates

Skills:
AI,.NET,Claude

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