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Senior Node Js Developer Jobs in O Fallon, MO (NOW HIRING)

The Timberline Group

Senior Angular Developer

Saint Louis, MO · On-site +1

$53.25 - $65.25/hr

Engineering teams deliver software and features using the Agile methodology. Position Requirements & Major Responsibilities: * Work with other team members (in multiple time zones across the globe)

Fabergent

C# Developer (Jr and Sr Roles)

Saint Louis, MO

$53 - $70/hr

Angular JS, ASP.NET MVC, Web API, Gulp, LESS, Typescript Work on the latest technologies of .NET 4 ... programming Strong knowledge of web service models Strong knowledge of Javascript and JQuery ...

Atria Group LLC

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

JAX-RS, JSON, HTML5, CSS, jQuery, backbone.js, bootstrap.js, Agile (Scrum) Essential Duties ... Unigroup is in need of a senior Java developer. They will be part of a 10+ person team developing ...

JS Consulting

Senior Developer

Saint Louis, MO · On-site

$53 - $70/hr

Job Title- Senior Developer Project Location - Hybrid in Saint Louis, MO Duration- Full-time Visa- USC Must Have: Bachelor's Degree. Benefits: Excellent pay, comprehensive healthcare packages ...

ArchKey Solutions

Senior Python Developer

Fenton, MO · On-site

$116K - $156K/yr

The Senior Python Developer is responsible for designing, developing, and maintaining complex ... Vue.js, JavaScript) is desirable. • Knowledge of application security testing and secure ...

CYNET SYSTEMS

Frontend Engineer

Saint Louis, MO · On-site

$45 - $50/hr

Pay Range: $45hr - $50hr Requirement/Must Have: 1+ years of experience in React/Next.js. 1+ years ... Node. Graphql. MUI. Benefits Our Benefits Include: Medical, Dental, and Vision Insurance 401(k) ...

CYNET SYSTEMS

Frontend Engineer

Saint Louis, MO · On-site

$45 - $50/hr

Pay Range: $45hr - $50hr Requirement/Must Have: * 1+ years of experience in React/Next.js. * 1+ ... Node. * Graphql. * MUI. Benefits Our Benefits Include: * Medical, Dental, and Vision Insurance ...

The Timberline Group

Senior C# .NET Developer

Saint Louis, MO · On-site

$53 - $70/hr

NET Developers work with a team of talented individuals who share a strong passion for their work ... Xamarin and/or Umbraco and/or Knockout.js experience a plus. * An individual capable of working on ...

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Senior Node Js Developer information

See O Fallon, MO salary details

$9

$54

$78

How much do senior node js developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for senior node js developer in O'Fallon, MO is $54.48, according to ZipRecruiter salary data. Most workers in this role earn between $46.11 and $59.62 per hour, depending on experience, location, and employer.

What is the difference between Senior Node Js Developer vs Backend Developer?

AspectSenior Node Js DeveloperBackend Developer
Required SkillsExpertise in Node.js, JavaScript, API development, database managementProficiency in server-side languages (e.g., Java, Python, PHP), database systems, API design
Experience Level5+ years, leadership in projects2+ years, broad backend experience
Work EnvironmentTech companies, startups, software agenciesVaried industries, tech firms, enterprise environments
CertificationsOften preferred in Node.js, cloud, or related certificationsGeneral backend or programming certifications

While both roles involve server-side development, a Senior Node Js Developer specializes in Node.js and JavaScript frameworks, often leading projects in that ecosystem. A Backend Developer has a broader scope across various server-side languages and technologies. The senior role emphasizes expertise in Node.js, API optimization, and team leadership within JavaScript environments.

Senior Node Js Developer jobs near you
Infographic showing various Senior Node Js Developer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 78% Full Time, 8% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $113,309 per year, or $54.5 per hour.

Senior .NET / React Web Developer

Integrity Web Consulting

University City, MO • On-site

Full-time

Re-posted 20 days ago

Job description

Company Description

Excellent opportunity for a senior .NET / React web developer to join the leading web design, development and consulting firm headquartered in the historic Tivoli Theatre off the Loop neighborhood in amazing St. Louis - with a flexible work from anywhere environment.

We are looking for creative professionals who want to learn on a daily basis, take pride in developing highly usable, intuitive web/mobile solutions and hope to change the world via technology.

We hire people based upon the H's:

  • Happy - a zest for life and desire to delight our clients
  • Humble - no egos allowed. ever.
  • Hungry - will want to change the world
  • Honest - always do what you say you're gonna do

NO offshore firms, applicants or recruiters, please. 

Job Description

Join a team of experienced professionals to develop effective web solutions for clients ranging from Silicon Valley start-ups to Chicago private equity firms to Nashville healthcare companies to leading local St. Louis firms.

Integrity's developers partner with user experience designers and content strategists to solve challenging problems for our clients by designing/developing world-class web-based solutions - including custom web applications, iOS mobile apps and Android mobile apps.

Core requirements include:

  • C#/MVC
  • REST APIs
  • React / Next.js
  • MS SQL
  • Passion for quality code
  • Excellent problem solver and strategic thinker with strong soft skills
Qualifications

At Integrity, we hire for character and soft skills because we believe in growing talent from within. However, the ideal candidate will have prior experience with the following:

  • Technical Skills:

    • 3+ years of experience with .NET C#, including developing Web APIs with AJAX and RESTful services.
    • Experience with React / Next.js
    • Proficiency in repository management using Git.
    • Strong knowledge of object-oriented programming principles.
    • Familiarity with writing unit tests to ensure code quality.
    • Understanding of Agile software development methodologies and practices.

  • Soft Skills:

    • Exceptional verbal and written communication skills to collaborate with team members and stakeholders effectively.
    • A passion for working in a highly collaborative environment that values teamwork.
    • A growth mindset with the desire and ability to learn daily and adapt to new challenges.
Additional Information

Must have a passion for all things web, learning every day and working with the most creative, technical, awesome team.

Apply