Senior Full-Stack Engineer

Luxoft; Brasil; Vor Ort; BRL 120.000 - 180.000; Vollzeit

Zusammenfassung

Luxoft is seeking an experienced engineer to build partner‑facing surfaces and core APIs, including embeddable widgets, previews, and booking flows. You will work with TypeScript/React on the frontend and Python (FastAPI) on the backend, delivering secure, multi‑tenant services and SDKs.

You will also generate developer documentation, sandbox environments, and ensure comprehensive testing (unit, integration, E2E) while supporting CI/CD and production monitoring.

Qualifikationen

• 6+ years of full‑stack engineering shipping production web applications.
• Experience building embeddable widgets, third‑party components, or SDKs.
• Strong TypeScript + React frontend and Python (FastAPI) backend.

Aufgaben

• Build partner‑facing surfaces and core APIs powering widgets, previews, and booking flows.
• Develop and maintain SDKs, REST endpoints, and multi‑tenant backend services.
• Ensure security/compliance for PHI and HIPAA with robust testing and monitoring.
• Create developer docs, CI/CD pipelines, and partner sandbox environments.
• Write unit, integration and E2E tests; support incident response and production monitoring.

Kenntnisse

TypeScript

React

Python

FastAPI

OpenAPI

OAuth 2.0

Web Components

CI/CD

Testing (Unit/Integration/E2E)

Jobbeschreibung

In this role, you will build these partner-facing surfaces and the core APIs powering them—ranging from embeddable widgets, preview applications, and booking flows to SDKs and remote MCP servers.

AI-Native Culture: This is a hands‑on, AI‑native engineering role. You will leverage coding agents and reusable AI skills daily to ship high‑quality, secure code at an accelerated pace.

• Embeddable Surfaces: Build embeddable widgets using Web Components / iframes featuring style isolation, CSP compatibility, postMessage communication protocols, and strict versioning.
• Core Application & UX: Develop WCAG 2.1 AA-compliant questionnaire and booking flows, white-label theming systems, and partner preview environments.
• Backend & API Architecture: Implement Python services and REST API endpoints based on shared OpenAPI contracts, managing multi-tenancy and partner authentication.
• Developer Experience & SDKs: Generate client SDKs from OpenAPI specs, write developer documentation, and build partner sandbox environments.
• Security & Compliance: Ensure strict handling and protection of Protected Health Information (PHI).
• Quality & Operations: Write unit, integration, and E2E tests, ship continuously through CI/CD pipelines, monitor production applications, and participate in incident response.
• Experience: 6+ years of full-stack engineering experience shipping production web applications.
• Embeddable Tech Stack: Proven experience building embeddable widgets, third-party Web Components, or SDKs running inside partner products.
• Core Tech Stack: Strong TypeScript + React on the frontend, and Python (e.g., FastAPI) for backend services.
• Web Platform Mastery: Deep understanding of Custom Elements, Shadow DOM, iframe sandboxing, Content Security Policy (CSP), and postMessage.
• API & Auth: REST API design with OpenAPI (including SDK generation). Practical knowledge of OAuth 2.0, OIDC, and SSO.
• Healthcare & Compliance: Direct experience working with PII and/or PHI under HIPAA regulations.
• AI Tooling: Daily proficiency with AI coding tools (e.g., Claude Code) combined with strong technical judgment for security and testing.
• Ownership Mindset: Focus on driving features to landed and monitored in production, not just merged.