Hybrid Senior Full Stack Engineer, Front End

at eSimplicity

• Job title: Senior Full Stack Engineer, Front End
• Job type: Full Time
• Experience level: Senior
• Salary: $116,700 - $160,000 per year
• Degree requirement: Bachelor's Degree
• Tech skills: AWS, Cloud, Cypress, Docker, GraphQL, JavaScript, Jest, Next.js, Node.js, Postgres, Python, React, Redis, TypeScript, Webpack
• Location requirements: Hybrid, United States

About the role

• Senior Full Stack Engineer developing Agentic AI solutions and modern web applications. Leading internal and client collaboration at eSimplicity to enhance digital services across government agencies.

Responsibilities

• Lead discovery and consulting sessions with clients and internal teams to clarify goals, constraints, and success metrics; separate true needs from wants.
• Propose Agentic AI-enabled solutions: identify high-ROI opportunities; outline architectures for agent orchestration, tool integrations, data access, and guardrails; communicate tradeoffs and risks.
• Prototype and deliver frontend-first experiences in React/TypeScript with Tailwind or CSS-in-JS; build accessible, reusable components and maintain design system consistency.
• Design, build, and iterate on secure APIs (REST/GraphQL; OpenAPI), integrations, and data flows using Node.js (preferred) or Python; leverage Postgres and Redis.
• Drive consistency and quality across front-end implementations in multi-app or micro frontend environments.
• Communicate clearly: author decision records, design docs, runbooks, and client-facing summaries; present options and recommendations to mixed audiences.
• Participate in Agile processes including daily standups, demos, retrospectives, and sprint planning; collaborate closely across engineering, DevOps, UX, Product, and Scrum Master roles.

Requirements

• Minimum of 7 years related experience delivering production web applications on small, cross-functional teams.
• Exceptional communication and writing skills; adept at facilitation, stakeholder alignment, and translating complex topics for mixed audiences.
• Demonstrated consultative problem-solving: discovery, option framing, impact/risk analysis, and solution proposals.
• Hands-on experience enabling Agentic AI solutions (e.g., multi-step/agent orchestration, tool-use integration, prompt/eval harnesses, safety/guardrails).
• Expert-level proficiency in at least one of the following languages: TypeScript, JavaScript, Python.
• Proficiency in front-end tooling such as Vite, Webpack, Storybook, ESLint, Prettier.
• Experience building dynamic forms and admin panels using JSON Schema and React-based builders.
• Experience with Tailwind CSS, CSS-in-JS patterns, and responsive mobile-first development.
• Familiarity with web accessibility (WCAG and Section 508) and performance optimization best practices.
• Experience with modern web application frameworks such as React.js, Next.js, and Node.js.
• Testing with Jest and Testing Library plus Playwright or Cypress; BDD with Cucumber is a plus.
• Deep understanding of APIs; familiarity with JSON, Web APIs, REST APIs, JSON-RPC, RESTful practices, and GraphQL; experience defining APIs with OpenAPI.
• Experience using modern, open-source software frameworks to prototype and deploy full-stack web applications, including all aspects of server-side processing, data storage, networking, content delivery, and monitoring.
• Experience with Docker containerization and deployments.
• Extensive experience using Git and CI/CD platforms to deliver safe releases at a rapid rate.
• Hands-on experience with AWS cloud services.
• Experience working on a fully integrated Agile product team smaller than 10 people.
• A demonstrated preference for the right amount of unit and integration tests, across a variety of platforms.
• Flexible and willing to accept a change in priorities as necessary.
• Ability to work in a fast-paced, team-oriented environment.
• Excellent command of written and spoken English.
• Ability to obtain and maintain a Public Trust; must reside in the United States.
• Communicates technical information to non-technical audiences.

Benefits

• full healthcare benefits