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Senior Javascript Developer Jobs in Saint Louis, MO

MasterCard

Senior Software Engineer - Java

O Fallon, MO · On-site

$115 - $184/hr

Develop modern, responsive user interfaces using React, Angular, TypeScript, JavaScript, or similar ... Cloud, DevOps & Engineering: Azure or AWS, Docker, Kubernetes, GitHub, CI/CD pipelines, Automated ...

MasterCard

Senior Software Engineer - Java

O Fallon, MO · Hybrid

$116K - $153K/yr

Develop modern, responsive user interfaces using React, Angular, TypeScript, JavaScript, or similar ... SQL, PostgreSQL / Oracle, Kafka, JSON / XML APIs oCloud, DevOps & Engineering: Azure or AWS, Docker ...

Mastercard, Inc.

Senior Software Engineer - Java

O Fallon, MO · On-site

$116K - $153K/yr

... and developer productivity. • Apply strong software engineering practices, including object ... React, Angular, TypeScript, JavaScript, HTML5 / CSS3 oData & Integration: SQL, PostgreSQL / Oracle ...

Fabergent

C# Developer (Jr and Sr Roles)

Saint Louis, MO · On-site

$53 - $70/hr

HTML5 and Angular JS or similar JavaScript libraries Strong knowledge of object-oriented programming Strong knowledge of web service models Strong knowledge of Javascript and JQuery Experience with ...

1 point system

Java Developer

O Fallon, MO · On-site

$47.75 - $61.75/hr

The Sr. Software Engineer opportunity we have in St. Louis, MO. All candidates will be required to ... Python, Perl, PHP, JavaScript, Go). * Orchestrates the deployment/maintenance of complex ...

Nerdy

Senior Software Engineer

Saint Louis, MO · On-site

$114K - $151K/yr

Your focus would be on building products using Javascript and Typescript and a core Object-Oriented ... We require Senior Software Engineers with a strong focus on AI-Native development. Proficiency in ...

The Timberline Group

Senior C# .Net developer

Saint Louis, MO · On-site

$53 - $70/hr

Experience automating API and user interface tests * 1-2 years' experience with modern JavaScript ... Knowledge of DevOps practices Education / Other Experience: * College Degree a plus * E-Commerce ...

DCS Corp

Senior Level Software Developer

Saint Louis, MO · On-site

$53 - $70/hr

We are seeking a Software Engineer to support our client's intelligence analysis products and ... Java, JavaScript or Python enterprise application development. Web services architecture, design ...

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Senior Javascript Developer information

See Saint Louis, MO salary details

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$58

$77

How much do senior javascript developer jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for senior javascript developer in Saint Louis, MO is $58.62, according to ZipRecruiter salary data. Most workers in this role earn between $52.50 and $66.73 per hour, depending on experience, location, and employer.

What is a senior JavaScript developer?

A Senior JavaScript Developer is a highly experienced programmer specializing in JavaScript, including frameworks like React, Angular, or Node.js. They are responsible for designing, developing, and optimizing web applications, ensuring high performance and maintainability. Additionally, they provide technical leadership, mentor junior developers, and collaborate with cross-functional teams to deliver scalable solutions. Strong problem-solving skills, deep knowledge of JavaScript best practices, and experience with modern development tools are essential for this role.

What are the key skills and qualifications needed to thrive as a senior JavaScript developer?

To thrive as a Senior Javascript Developer, a strong command of JavaScript (including ES6+), advanced front-end frameworks (like React, Angular, or Vue), and back-end technologies (such as Node.js) are essential, along with several years of professional coding experience. Familiarity with version control systems (like Git), CI/CD pipelines, and relevant certifications (e.g., AWS Certified Developer or JavaScript certifications) is highly valued. Excellent problem-solving abilities, mentorship skills, and effective communication help developers collaborate and lead within cross-functional teams. These skills enable Senior Javascript Developers to build robust applications, guide junior team members, and drive innovation in fast-paced tech environments.

What are typical challenges faced by senior JavaScript developers in day-to-day work?

Senior Javascript Developers often encounter complex challenges such as optimizing web application performance, ensuring code scalability and maintainability, and integrating with diverse APIs and services. They are also expected to troubleshoot legacy code and address security vulnerabilities, all while keeping up with the rapidly evolving JavaScript ecosystem. Collaborating with designers, product managers, and junior developers can add layers of complexity to project requirements. However, overcoming these challenges is rewarding and provides opportunities to shape technical strategy and influence best practices within the team.

What are the most commonly searched types of Javascript Developer jobs in Saint Louis, MO?

The most popular types of Javascript Developer jobs in Saint Louis, MO are:

What are popular job titles related to Senior Javascript Developer jobs in Saint Louis, MO?

For Senior Javascript Developer jobs in Saint Louis, MO, the most frequently searched job titles are:

What job categories do people searching Senior Javascript Developer jobs in Saint Louis, MO look for?

The top searched job categories for Senior Javascript Developer jobs in Saint Louis, MO are:

What cities near Saint Louis, MO are hiring for Senior Javascript Developer jobs?

Cities near Saint Louis, MO with the most Senior Javascript Developer job openings:

Senior Javascript Developer jobs near you
Infographic showing various Senior Javascript Developer job openings in Saint Louis, MO as of August 2026, with employment types broken down into 79% Full Time, 6% Part Time, and 15% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $122,076 per year, or $58.7 per hour.

Senior Front-End Web Developer/Engineer -React/NextJS

Integrity Web Consulting

University City, MO • On-site

$107K - $141K/yr

Full-time

Re-posted 20 days ago

Job description

Company Description

Are you a senior front-end dev seeking to join a team of seasoned designers, developers and web marketers? Come join the leading web agency based in the historic Tivoli Theatre off Delmar in the Loop in St. Louis. Flexible work from anywhere opportunity.

We are looking for creative technologists who want to learn on a daily basis, take pride in developing highly usable, intuitive web applications 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

NON-smokers only, please.

NO offshore or recruiters, please.

Job Description

If you love taking award-winning PSDs and creating super tight code, then we're the place for you. You'll have the following skills:

  • HTML, CSS and a passion for front-end development
  • Must know/love JavaScript - Angular / Node / React / NextJS
  • Responsive/Adaptive development
  • CSS Grids, Frameworks / Resets
  • Experience with leading CMS such as WordPress or DNN (dot net nuke) 
  • Progressive Enhancement / Graceful Degradation
  • HTML and CSS Specifications (W3C / WHATWG)
  • UX / Usability
  • Cross-Browser / Cross-Platform Development
  • Website Speed / Performance
  • Debugging Tools (Firebug, etc)
Qualifications

We are seeking problem solvers with exceptional soft skills to join our 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, content strategists, program managers, marketing analytics pros and our clients to solve challenging problems by designing/developing world-class web-based solutions.

Excellent opportunity for those who have experience in (or a passion to learn) best of breed web development frameworks.

Additional Information

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

Will likely love shows at the Pageant, Red Bull or American Honey.

Apply