Principal Frontend Platform Engineer

Medical Guardian

Lead frontend engineer architecting scalable applications for Medical Guardian's connected healthcare platform. Collaborating with multiple teams to enhance digital experiences for users and caregivers.

Posted 5/20/2026full-timePhiladelphia • Pennsylvania • 🇺🇸 United StatesLeadWebsite

Tech Stack

Tools & technologies

ApolloAzureJavaScriptNext.jsReactReact NativeReduxTypeScript

About the role

Key responsibilities & impact

Lead frontend architecture for enterprise web and mobile applications using React, Next.js, and React Native.
Design scalable, modular, reusable UI components aligned to the enterprise Design System and component governance strategy.
Architect and implement integrations with Sanity.io headless CMS for structured, multilingual, and dynamic content delivery.
Design and implement secure authentication and identity flows leveraging FusionAuth, OAuth2/OIDC, MFA, SSO, and role-based access controls.
Define frontend platform standards for performance, scalability, accessibility, resiliency, and security.
Drive adoption of modern frontend architecture patterns including SSR/ISR, edge rendering, micro frontends, and Progressive Web Application (PWA) capabilities.
Define and implement frontend observability standards including telemetry, error tracking, performance monitoring, distributed tracing, and user experience analytics.
Collaborate with Product, UX, Engineering, AI/ML, and Data teams to translate business requirements into scalable technical solutions.

Requirements

What you’ll need

8+ years of professional frontend engineering experience with 3+ years operating in a Principal, Staff, or Lead Engineer capacity.
Deep expertise in React.js, Next.js, TypeScript, JavaScript, and modern frontend architecture patterns.
Strong experience building scalable applications using React Native.
Experience integrating headless CMS platforms, preferably Sanity.io.
Experience implementing authentication and identity solutions using OAuth2/OIDC platforms such as FusionAuth, Auth0, Okta, or Azure AD.
Strong understanding of frontend state management, data-fetching, and caching architectures (React Query, Redux Toolkit, Zustand, Apollo, etc.).
Expertise in responsive design, accessibility standards (WCAG 2.1+), and frontend performance optimization.
Experience building and maintaining enterprise design systems and component libraries.
Proven ability to mentor engineering teams and influence technical direction across organizations.
Strong collaboration skills across product, UX, platform engineering, security, and executive leadership teams.
Excellent communication skills with the ability to translate complex technical concepts into business outcomes.
Candidates must be authorized to work in the United States without current or future need for visa sponsorship.
Candidates must be able to commute to our Philadelphia, PA office on Tuesdays and Wednesdays.

Benefits

Comp & perks

- Health Care Plan (Medical, Dental & Vision)
- Paid Time Off (Vacation, Sick Time Off & Holidays)
- Company Paid Short Term Disability and Life Insurance
- Retirement Plan (401k) with Company Match

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

React.jsNext.jsTypeScriptJavaScriptReact NativeOAuth2OIDCFusionAuthSanity.ioresponsive design

Soft Skills

mentoringcollaborationcommunicationinfluencing technical directiontranslating technical concepts