Full-Stack Engineer (Frontend)

Job Description

Role Overview

Our client is building a greenfield web platform that delivers modern, cloud-based experiences aligned with Sensei Cloud. The application is modular in nature and will grow over time.

As a Full-Stack Engineer with a frontend focus, you will be a core contributor shaping the user experience and frontend architecture from the ground up — while remaining capable of working across the entire stack when needed. Your primary ownership area is the React/TypeScript frontend: building customer-facing features, implementing responsive layouts, and integrating with the Rails API. You will also contribute to backend work as the team and product evolve.

This is a full-product ownership role in a HIPAA-regulated healthcare environment, requiring strong technical judgment, attention to compliance, and close collaboration with your fellow engineers and product stakeholders.

You will work within a Human → AI → Human engineering workflow, using AI tools to accelerate development while maintaining full accountability for code quality and correctness.

Key Responsibilities

Primary (Frontend)

• Design, build, and maintain React components for a dental practice scheduling application
• Implement responsive, mobile-first layouts using Tailwind CSS and standard breakpoints (sm, md, lg)
• Integrate frontend features with a Rails-based API using Axios and TanStack Query for data fetching, caching, and mutations
• Implement Azure AD B2C authentication using MSAL, including protected routes, token acquisition, and Axios interceptors
• Maintain clean, readable TypeScript code that conforms to ESLint and Prettier standards

Shared (Full-Stack)

• Contribute to Rails API endpoints, data models, and background jobs as needed
• Collaborate closely with backend-focused engineers and product stakeholders throughout feature development
• Participate in AI-augmented development workflows, reviewing and validating AI-generated code against acceptance criteria
• Follow Git best practices: feature branches, pull requests for all changes, and conventional commit messages
• Proactively update documentation when behavior or architecture changes

Requirements

Core Technical Skills

• Strong experience with TypeScript and React, including functional components and custom hooks
• Experience consuming REST APIs using Axios, including authentication header injection
• Proven ability to build responsive UIs using a utility-first CSS framework (Tailwind or similar)
• Experience with server-state management libraries such as React Query, SWR, or RTK Query
• Working knowledge of a server-side framework (Rails, Express, Django, or similar) — you don’t need to be an expert, but you should be comfortable reading and contributing to backend code
• Familiarity with relational databases (PostgreSQL preferred) and REST API design
• Familiarity with Git-based workflows, including pull requests and conventional commits
• Comfortable reading and maintaining Markdown documentation

AI-Augmented Development (Required)

• Hands-on experience using AI coding assistants (e.g., Claude Code, GitHub Copilot, Cursor) as part of daily development
• Clear understanding of the Human -> AI -> Human review loop, with human ownership of all decisions
• Ability to maintain supporting documentation such as READMEs, architecture notes, and AI configuration files (e.g., CLAUDE.md)
• Awareness of AI traceability practices, including commit trailers, review checklists, and prompt hygiene

HIPAA & Compliance Awareness (Required)

• Strong understanding that Protected Health Information (PHI) must never appear in code, tests, logs, commits, or error messages
• Comfort working exclusively with synthetic or mock data (e.g., SYNTHETIC_-prefixed data)
• Awareness of secure coding practices, including no hardcoded credentials, no PHI in browser storage, and structured logging

Technologies & Tools

You will work with the following technologies as part of the CSD Cloud Apps stack:

Frontend (Primary)

• Language: TypeScript 5
• Framework: React 19 (functional components, hooks)
• Build Tooling: Vite 7
• Styling: Tailwind CSS 4, clsx, tailwind-merge (cn() helper)
• Server State: TanStack Query (React Query) v5
• Routing: React Router v7
• HTTP Client: Axios (with authentication interceptors)
• Authentication: Azure AD B2C via MSAL
• Code Quality: ESLint 9, Prettier 3

Backend (Collaborative)

• Framework: Ruby on Rails 8.1 (API-only mode)
• Database: PostgreSQL 16
• Background Jobs: Sidekiq with Redis 7
• Testing: RSpec, FactoryBot, WebMock, VCR

Shared

• Development Environment: Docker Compose
• Version Control: Git with feature branches and pull requests

Preferred / Nice-to-Have Qualifications

• Familiarity with Azure AD B2C and MSAL authentication flows
• Experience with Ruby on Rails, especially API-only mode
• Healthcare or dental domain experience
• Experience optimizing Vite builds and implementing code splitting
• Exposure to WebSockets or real-time updates (e.g., ActionCable)
• Experience contributing to a greenfield product from early stages

Benefits

• Work remotely Monday - Friday, 40 hours a week (no weekends)
• Health Care Reimbursement
• Active Lifestyle Reimbursement
• Quarterly Home Office Reimbursement
• Did we mention it's REMOTE?!!

One of our core values at Zipdev is "Be authentic." that's why we encourage you to answer the application form in your own words; we are interested in getting to know you, not a digital assistant.

Wondering how our remote environment or our payment method work? We've put together some helpful answers in our FAQs at the bottom our our career site. Take a look and let us know if you have any other questions!