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Fullstack Developer (Frontend Focus - TypeScript/React) at Zipdev. 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.. Company Location: Chile.