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

The Timberline Group

Lead Salesforce Developer

Saint Louis, MO · On-site +1

$54 - $71.50/hr

Coaching less senior team members and providing feedback in this domain. • Proven experience with ... js framework (e.g., React or Angular) • Working experience in AppExchange App Development and ...

The Timberline Group

SR. SOFTWARE ENGINEER

Saint Louis, MO · On-site +1

$119K - $157K/yr

Leadership * Coach less senior Software Engineers in processes, techniques and problem solving ... js, Bootstrap, jQuery. * Mobile Application Development:Maintain knowledge and skills in cross ...

Palnar

Sr. Java Full Stack Developer

O Fallon, MO · On-site

$49 - $63.25/hr

Angular and React JS experience preferred. Deep understanding of JavaScript and it's benefits and ... Have proficiency in Quality engineering and experience working with Quality leads to define ...

JNIT INC

IT Pega Developer

Bridgeton, MO · On-site

$55 - $60/hr

Reach me Position 4: 32961 - IT Pega Developer - Senior Location: St.Louis, MO Duration: 7 Month ... Analyzer, PRPC Multi-node architecture and caching. Experience in PRPC configuration and ...

JNIT INC

IT Pega Developer

Bridgeton, MO · On-site

$55 - $60/hr

Reach me Position 4: 32961 - IT Pega Developer - Senior Location: St.Louis, MO Duration: 7 Month ... node architecture and caching. • Experience in PRPC configuration and customization • ...

AVALA Marketing Group

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

... of your own and other developer's code Working closely with the project manager to define ... NET MVC jQuery, Spine.js, and other client scripting packages Microsoft SQL Server 2012 and newer T ...

The Timberline Group

SOFTWARE ENGINEER

Saint Louis, MO · On-site +1

Relies on supervision to complete tasks; works independently or with support from more senior SE ... js, Bootstrap, jQuery. * Mobile Application Development:Maintain knowledge and skills in cross ...

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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.

Software Engineer Sr - Fullstack/Vue

The Timberline Group

Maryland Heights, MO • On-site

Full-time

Re-posted 17 days ago

Job description

US Citizens or GC Holders only
Must be on our W2- no C2C
Local candidates only
Onsite- 2-3 days per weekRESPONSIBILITIES:
Full Stack Development
  • Design and build end-to-end full-stack applications using Node.js on the backend and Vue.js on the frontend, delivering cohesive, production-ready features from database to UI.
  • Develop scalable REST/GraphQL APIs and microservices that integrate with platform technologies such as Apache Solr, MongoDB, PostgreSQL, Oracle, and RabbitMQ deployed on Kubernetes.
  • Build and maintain internal libraries and SDKs that simplify consumption of platform services, and refactor existing applications for efficiency, reliability, and maintainability.
  • Lead architecture decisions for new features, ensuring solutions align with Twelve-Factor App principles and best practices.
AI-Assisted & Agentic Engineering
  • This role requires comfort working alongside AI-powered tools while maintaining strong engineering judgment, validation, and accountability for outcomes.
  • Sr Developers will contribute to the adoption and continuous improvement of AI-enabled workflows by providing feedback, identifying opportunities for automation, and safely incorporating AI assistance into repeatable operational patterns.
  • This includes leveraging approved AI tools and agents to assist with platform operations, troubleshooting, automation, documentation, and workflow efficiency under established governance and best practices.
  • Sr Developers on the INFOPS Application Development team are expected to actively use and support AI-assisted and agentic engineering workflows as part of their day-to-day work.
  • Develop agent-to-agent (A2A) AI workflows or applications.
  • Design, implement, and maintain MCP (Model Context Protocol) servers that expose enterprise data and capabilities to AI agents and LLM-powered workflows.
CI/CD & DevOps
  • Own and evolve CI/CD pipelines using GitHub, Jenkins, and Codefresh, from commit hooks through automated testing and production deployment.
  • Develop and maintain deployment orchestration tools and automation workflows on Kubernetes-based platforms (including OpenShift).
  • Drive DevOps improvements: infrastructure-as-code, automated testing, deployment reliability, and monitoring with Prometheus and Grafana.
  • Participate in on-call rotation, monthly maintenance windows, and platform lifecycle tasks to ensure platform reliability.
Leadership & Collaboration
  • Mentor mid-level and junior developers, conducting code reviews and sharing architectural knowledge to elevate team capability.
  • Work with customers and stakeholders to understand integration needs and translate business requirements into robust engineering solutions.
  • Collaborate with partner engineering teams to drive efficiencies across the organization and contribute to best practices.
  • Maintain strong documentation and actively contribute to team knowledge sharing.
  • Work effectively in a fast-paced environment with shifting priorities, balancing support work, ad hoc requests, and project deliverables.

REQUIRED QUALIFICATIONS:
  • Bachelor’s degree in Computer Science, MIS, or related field, or equivalent experience
  • 5+ years of professional development experience with a strong full-stack focus
  • 5+ years of experience with JavaScript and Node.js, building production APIs, services, and microservices
  • 3+ years of experience with Vue.js; component design, state management (Pinia/Vuex), and frontend architecture.
  • Hands-on experience using AI coding tools (Claude, GitHub Copilot, M365 Copilot, Windsurf) in a professional engineering context
  • Experience building or integrating with MCP (Model Context Protocol) servers or similar AI agent integration patterns
  • CI/CD and DevOps experience: pipeline authoring, automated testing, deployment automation (GitHub Actions, Jenkins, Codefresh, or equivalent)
  • Experience with GitHub, Docker, and Kubernetes
  • Experience with Linux/Unix and shell scripting
  • Familiarity with microservices, Twelve-Factor App principles, and cloud-native development
  • Strong test-first mindset with experience in unit, integration, and end-to-end testing
  • Ability to analyze requirements and communicate effectively, both verbally and in writing
  • Team-oriented with strong work ethic, collaboration skills, and the ability to mentor others
  • Strong problem-solving, change management, and technical planning abilities

PREFERRED QUALIFICATIONS:
  • Experience with Java, Grails, Python, or Go
  • Experience with React frontend development
  • Experience with IDP concepts and platforms like Backstage
  • REST API design and implementation, including OpenAPI/Swagger documentation, API gateway and routing patterns
  • Familiarity with secure, minimal containers: Minimus, Docker Hardened Images, etc.
  • Kubernetes-based platforms such as OpenShift
  • Cloud providers, especially Azure
  • Databases: MongoDB, Oracle, PostgreSQL
  • Messaging, search, and caching tools: RabbitMQ, Apache Solr, Redis
  • Containers and automation tools: Docker, Ansible
  • Monitoring tools: Prometheus, Grafana, Splunk
  • Prior experience designing AI-driven internal tooling or copilot integrations