Software Engineer

Luxoft; México; Presencial; MXN 900.000 - 1.300.000; Jornada completa

Descripción de la vacante

Luxoft in Mexico is seeking an experienced Senior Full-Stack Engineer to help build a platform for marketplaces that connect providers with members and enable booking inside partner sites and apps. You’ll work on embeddable widgets, preview apps, questionnaires, booking flows, SDKs, and a remote MCP server.

You’ll implement OpenAPI-backed Python services with tenancy and partner authentication, generate SDKs, write developer docs, and maintain CI/CD pipelines.

Formación

• 6+ years shipping production web apps as a full-stack engineer.
• Experience building embeddable widgets, third-party-hosted components, or SDKs integrated into others' products.
• Strong TypeScript and React, plus backend services in Python (FastAPI).
• Web embedding fundamentals: custom elements, Shadow DOM, iframe sandboxing, CSP, postMessage.
• REST API design with OpenAPI; SDK generation from specs; GraphQL a plus.
• OAuth 2.0, OpenID Connect, and SSO knowledge.
• Experience handling PII/PHI under HIPAA.
• Daily use of AI coding tools; ensure AI-assisted code is correct and secure.

Responsabilidades

• Build the embeddable widget as web components or iframes with style isolation, CSP compatibility, and a stable postMessage protocol.
• Develop questionnaire and booking flows, white-label theming, and the preview app to WCAG 2.1 AA.
• Implement endpoints in Python services using the OpenAPI contract, including tenancy and partner authentication.
• Generate SDKs from the OpenAPI contract, write developer documentation, and build sandbox experiences for partner developers.
• Ensure proper handling of PHI.
• Write unit, integration, and end-to-end tests; ship through CI/CD; monitor and support incident response.

Conocimientos

Full-stack engineering

Embeddable widgets/SDKs

TypeScript

React

Python (FastAPI)

OpenAPI/REST

OAuth/OpenID/SSO

HIPAA PHI handling

AI coding tools

Ownership & accountability

Herramientas

OpenAPI tooling

GraphQL

FastAPI

Descripción del empleo

Project Description:We're building a platform that companies use to create marketplaces that help people find the right kind of provider and book an appointment. Payer and employer partners deliver it to their members inside their own sites and apps, through embeddable experiences, SDKs, an API, andan MCP server.You'll build those surfaces and the API behind them. The work spans the embeddable widget clients place on their sites, the preview app that demonstrates it, the questionnaire and booking flows, SDKs, and a remote MCP server.This is a hands-on, AI-native role: you'll use coding agents and reusable AI skills every day to ship faster without trading away quality or security.

Responsibilities

• Build the embeddable widget as web components or iframes, with style isolation, Content Security Policy compatibility, a postMessage protocol, and versioning that won't break partner pages.
• Build the questionnaire and booking flows, white-label theming, and the preview app, to WCAG 2.1 AA.
• Implement endpoints in the shared OpenAPI contract, in Python services, including tenancy and partner authentication.
• Generate SDKs from the OpenAPI contract, write developer documentation, and build the sandbox experience for partner developers.
• Ensure proper handling of PHI.
• Write unit, integration, and end-to-end tests, ship through CI/CD, monitor what you build, and support incident response.

Qualifications

Required Skills

• Mandatory Skills Description:
• 6+ years of full-stack engineering experience shipping production web applications.
• Experience building embeddable widgets, third-party-hosted web components, or SDKs that run inside other companies' products.
• Strong TypeScript and React, plus backend services in Python (e.g., FastAPI).
• Command of the web platform for embedding: custom elements and Shadow DOM, iframe sandboxing, Content Security Policy, and postMessage.
• REST API design with OpenAPI, including SDK generation from specs. GraphQL experience is a plus.
• Practical knowledge of OAuth 2.0, OpenID Connect, and SSO.
• Experience working with PII and/or PHI under HIPAA.
• Daily use of AI coding tools like Claude Code, with the judgment to keep AI-assisted code correct, tested, and secure.
• You drive work to landed, not merged, and you own the result.

Preferred Skills

• Nice-to-Have Skills Description:
• Experience in healthcare technology and working PHI under HIPAA.
• Familiarity with FHIR, especially rendering FHIR SDC / Questionnaire resources, and with SMART on FHIR.
• Experience building MCP servers or other LLM tool integrations.
• Experience with micro-frontend architectures.
• Experience with scheduling or booking products.
• Experience with GraphQL or product analytics governance.