Senior Frontend Engineer — React/Node for Data Platforms

Essential Software Inc.; Rockville, Northern (MD, KY); Hybrid; USD 115,000 - 160,000; Full time

Benefits offered by this job

Health care

401(k)

Paid time off

Professional development

Job summary

Essential Software Inc. in Rockville, MD seeks a Sr. Software Engineer to design and implement modern front-end platforms.

You will lead React.js architectures, collaborate with UX and product teams, and integrate RESTful/GraphQL APIs with Node.js backend services. The role requires strong communication, government project experience, and a proactive, mentorship mindset. Hybrid work with periodic client-site meetings in the DC area; salary range $115,000–$160,000 per year, commensurate with

Qualifications

• Bachelor's degree in Computer Science, Web Development, or related field.
• 5+ years in frontend/backend roles delivering React.js apps.
• Strong React.js skills including hooks and state management.
• Experience with Node.js and API integrations.
• Knowledge of WCAG 2.1 accessibility.

Responsibilities

• Collaborate with UX designers and product owners to deliver front-end solutions.
• Architect, develop, and maintain scalable React.js applications.
• Build and integrate RESTful and GraphQL APIs.
• Create and manage technical documentation.
• Mentor junior teammates and lead complex projects.
• Engage in Agile/Scrum ceremonies.
• Integrate AI-assisted development tools responsibly.

Skills

React.js

Node.js

HTML5/CSS3/JS

Redux

WCAG 2.1

CI/CD

Education

Bachelor's degree in Computer Science or related field

Tools

Git

Webpack/Vite

REST/GraphQL APIs

CI/CD tooling

AWS services (S3/CloudFront)

Job description

Essential Software Inc. in Rockville, MD seeks a Sr. Software Engineer to design and implement modern front-end platforms.

You will lead React.js architectures, collaborate with UX and product teams, and integrate RESTful/GraphQL APIs with Node.js backend services. The role requires strong communication, government project experience, and a proactive, mentorship mindset. Hybrid work with periodic client-site meetings in the DC area; salary range $115,000–$160,000 per year, commensurate with