Top 12 Js developer Jobs in O Fallon, Mo

Senior Software Engineer
Neteffects —Missouri
- $70 - $80 an hour
- 8 hour shift
- Background check
- 7 years
- Azure
- Health insurance
- Dental insurance
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Software Developer
True Manufacturing —O'Fallon, MO
- $80,000 - $95,000 a year
- Full-time
- Microsoft Word
- Background check
- Computer science
- Free parking
- Paid training
JUNIOR SOFTWARE DEVELOPER
MyBrand —St. Louis, MO
- Full-time
- 3 years
- Entry level
- Health insurance
- 401(k)
Quick Apply
Senior Developer (St. Louis)
World Wide Technology Holding, LLC —St. Louis, MO
- $106,400 - $133,000 a year
- Full-time
- Remote
- Computer science
- Computer Science
- 5 years
- Profit sharing
- Wellness program
IBM i Developer — RPG / Business Applications
Grimco —Sunset Hills, MO
- Online Application
- Hybrid work
- Mid-level
- 3 years
- SQL
- Profit sharing
- Paid parental leave
Quick Apply
13d
Senior Python Developer
ArchKey Solutions LLC —Fenton, MO
- Full-time
- Computer science
- Azure
- Computer Science
- Paid holidays
- Health insurance
Quick Apply
Sr Engineer (St. Louis)
World Wide Technology Holding, LLC —St. Louis, MO
- $108,400 - $135,500 a year
- Full-time
- Computer science
- 7 years
- Computer Science
- Profit sharing
- Wellness program

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React Developer
RenaissanceTech —Dublin, OH
Support existing and develop new integrations to our JavaScript based applications. Experience with Modern front-end libraries e.g. Styled-Components, React-…
$85,000 - $110,000 a year
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16h
Senior Java Developer
Hive + Co —Columbus, OH
HiveCo has a full time opportunity with our client for a *Senior Software Developer* to design, develop, and implement enterprise software solutions in a…
$108,567.77 - $115,000.00 a year
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13d

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js developer jobs near o fallon, mo

Senior Software Engineer

Neteffects
Missouri

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Job Details

Full-time | Contract
$70 - $80 an hour

Benefits

Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance
401(k) matching
Life insurance

Qualifications

Containerization systems
Orchestration
Software engineering
Node.js
React
Full-stack development
Infrastructure as Code (IaC)
C#
NoSQL
English
.NET
JavaScript frameworks
SQL
AWS
Docker
Version control systems
Terraform
Angular
Cloud Native Design
Software development
Developing and maintaining backend systems
Web applications
Front-end component implementation
Linux
Cloud automation
Cloud solution engineering
DevOps automation
Groovy
Python
Shell Scripting

Full Job Description

Job Title: Senior Software Engineer – Cloud
Job Type: W2 Contract (18 months, with possible extension and conversion)
Location: Onsite – Chesterfield, MO 63017
Rate: DOE (W2 only – no C2C, no third-party referrals)

Important:

Must be local to Chesterfield, MO — no relocation offered
Must be able to convert to full-time if extended — no future sponsorship will be provided

Job Overview:

We are seeking a Senior Software Engineer to join a cloud-first actuarial software development team. This role involves designing, building, deploying, and supporting modern API-based web applications and services. The ideal candidate has strong technical experience across the full stack, excellent problem-solving skills, and the ability to contribute individually as well as lead technical discussions and mentor team members.

Responsibilities:

Design, develop, and maintain scalable API-based systems with a cloud-first approach
Support, maintain, and modernize legacy actuarial platforms as needed
Work across the full development stack including frontend frameworks, databases, container orchestration, and infrastructure-as-code
Apply Test-Driven Development and CI/CD best practices
Collaborate effectively with cross-functional teams to deliver high-quality software
Mentor junior developers and contribute to code reviews
Continuously seek and implement process and codebase improvements
Manage individual workload and timelines independently
Communicate effectively with both technical and non-technical stakeholders

Required Qualifications:

10–12+ years of software development experience
Experience building full stack cloud-native applications
Strong proficiency with:
Node.js
React
Terraform
AWS and/or Azure
Docker / Linux Containers and orchestration (ECS, Fargate)
SQL (Oracle) and NoSQL databases
Familiarity with multiple programming languages and frameworks
Experience with containerization and deployment pipelines
Solid understanding of software development lifecycle and version control

Preferred / Nice to Have:

C# / .NET
Groovy, Python, or Shell scripting
Angular
AWS Certifications
Advanced knowledge of SDLC processes and Agile methodologies

Soft Skills:

Strong communication and teamwork abilities
Proactive mindset with a strong sense of ownership
Fluent in written and spoken English
Willingness to challenge the status quo and bring innovative ideas
Capable of mentoring and leading engineering efforts

Job Types: Full-time, Contract

Pay: $70.00 - $80.00 per hour

Benefits:

401(k)
401(k) matching
Dental insurance
Health insurance
Life insurance
Paid time off
Vision insurance

Schedule:

8 hour shift
Monday to Friday

Work Location: Remote

Quick Apply

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js developer jobs in o fallon, mo

Senior Software Engineer

Software Developer

JUNIOR SOFTWARE DEVELOPER

Senior Developer (St. Louis)

IBM i Developer — RPG / Business Applications

Senior Python Developer

Sr Engineer (St. Louis)

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