Fullstack Developer (Frontend Focus - TypeScript/React)

Our client is building a 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, you will be a core contributor shaping both the React/TypeScript frontend and the ASP.NET backend, delivering end-to-end features from UI through API and data persistence. This is a full-product ownership role in a HIPAA-regulated healthcare environment, requiring strong technical judgment, attention to compliance, and close collaboration with 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, correctness, security, and compliance. ### Key Responsibilities **Full‑Stack Delivery (End‑to‑End)** * Design, build, and maintain customer-facing features across the full stack (React UI → ASP.NET APIs → MS SQL). * Collaborate with product stakeholders and engineers throughout feature definition, implementation, and release. * 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 clear commit hygiene; proactively update documentation when behavior or architecture changes. **Frontend (React/TypeScript)** * Build and maintain React components and user workflows for a dental practice scheduling application (or similar clinical/operational workflows). * Implement clean, readable TypeScript that is maintainable and testable, with attention to UI correctness and edge cases. * Integrate frontend features with backend APIs, handling authentication, error states, loading states, and performance considerations. * Manage dependencies and build tooling via NPM (versioning, scripts, and reproducible builds). **Backend (ASP.NET + MS SQL + Azure)** * Design and implement RESTful APIs using ASP.NET to support frontend workflows and integrations. * Design and evolve MS SQL schemas with emphasis on clarity, performance, and data integrity. * Implement secure authentication/authorization patterns suitable for a regulated environment (e.g., token-based auth, role-based access). * Build integrations and platform capabilities using Azure Services (e.g., app hosting, identity, messaging, storage, monitoring as applicable). * Use Postman for API exploration, contract validation, test collections, and troubleshooting across environments. **Quality, Testing, and Agile Execution** * Demonstrate knowledge of QA processes in an Agile environment, including acceptance criteria, defect triage, regression awareness, and collaboration with QA roles. * Contribute to test strategy (unit/integration as appropriate), and ensure features meet functional, security, and reliability expectations. * Maintain a disciplined approach to compliance and secure engineering practices. **Core Technical Skills** * Strong experience with modern frontend frameworks (React, Angular, Vue, or similar) andTypeScrip , including building maintainable components and application flows. * Strong experience building backend services with ASP.NET and designing/consuming REST APIs. * Solid relational database skills with MS SQL (schema design, query awareness, performance basics). * Practical experience using Postman for API validation and troubleshooting. * Hands-on experience working with Azure Services in a product engineering context. * Familiarity with Git-based workflows (pull requests, code reviews) and maintaining engineering documentation. **AI‑Augmented Development (Required)** * Hands-on experience using AI coding assistants as part of daily development, with a clear understanding of the Human → AI → Human review loop and human accountability. * Ability to maintain supporting documentation such as READMEs, architecture notes, and engineering guidelines. **HIPAA & Compliance Awareness (Required)** * Strong understanding that Protected Health Information (PHI) must never appear in code, logs, tests, commits, or error messages; comfort working with synthetic/mock data. * Awareness of secure coding practices (no hardcoded credentials, least-privilege access patterns, safe error handling). ### **Technologies & Tools** **Frontend** * TypeScript * React (or similar frameworks such as Angular or Vue) * NPM **Backend** * ASP.NET * MS SQL **API & Platform** * Postman * Azure Services **Ways of Working** * Agile QA process awareness (definition of done, acceptance criteria validation, test collaboration, release readiness) * AI-assisted engineering with human ownership of outcomes ### Preferred / Nice‑to‑Have Qualifications * Healthcare or dental domain experience. * Experience contributing to a greenfield product from early stages. * Experience building interactive or dynamic UI features (e.g., data visualization, image manipulation, or real-time interfaces). * Familiarity with authentication flows and securing SPAs/APIs in enterprise environments. ### How We Work * **AI-assisted engineering:** AI tools are used for acceleration, but all code is reviewed and owned by engineers. * **Branch-based development:** Work is done on feature branches with pull requests and code reviews. * **Quality & compliance mindset:** Engineering practices include security awareness and careful handling of regulated data. * 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.](https://zipdev.com/careers/%20) Take a look and let us know if you have any other questions!