Contract Flutter Developer Jobs in Philadelphia, PA

Job Title
Lead Front End Developer
Location
2 days/week on-site in Philadelphia
Duration
6 month contract to hire
Compensation
$85/hr C2C max
Work Status
Notes
StatUpdates
Must have recent Lead experience - really focus on the must haves list
Job Description
Must haves (internal notes)
-Targeting 8 years of experience as a front end developer with at least 3 in a lead role. Will be managing 2 onshore, and offshore resources. Will be responsible for code reviews, performance evaluations etc.
-Must have experience with React.js/React Native, JavaScript/TypeScript, and modern frontend frameworks. Will be building a new website and mobile application on apple & android, both mobile and web development are a must have.
-Experience with CMS Platforms, Sanity.IO would be strongly preferred, but any is fine.
-Azure environment experience, MG is an Azure shop, so this is important.
-Must have familiarity with CI/CD pipelines, containerization, and modern deployment workflows.
Bonus: emerging frontend technologies (Next.js, Progressive Web Apps, Edge rendering).
Bonus: Flutter and Swift are fine, must understand it- they're freezing the flutter code. Moving from flutter to react native.
Position Description:
Role Summary:
As the Principal Frontend App Developer, you will serve as the technical leader for the design and implementation of modern, scalable, and user-friendly applications. You will set coding standards, establish architectural patterns, and mentor a team of frontend developers while working closely with backend, AI/ML, and product teams.
Role Summary
As the Principal Frontend Platform Engineer, you will serve as the technical leader responsible for architecting and delivering modern, scalable, secure, and highly performant frontend applications. You will drive the evolution of our Frontend Platform strategy using React, Next.js, React Native, Sanity.io, and modern cloud-native development practices. This role will establish frontend architectural standards, design system governance, authentication patterns, observability, and developer experience practices across engineering teams.
This is a highly strategic, hands-on leadership role focused on enabling a modular, multilingual, multi-brand digital platform supporting members, caregivers, partners, and internal operations. This role is expected to remain technically hands-on, contributing to architecture, proof-of-concepts, critical implementation efforts, and frontend platform engineering initiatives.
You will work closely with Product, UX, Platform Engineering, AI/ML, Security, and backend services teams to deliver seamless digital healthcare experiences at scale.
Key Responsibilities
Architecture & Platform Engineering
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.
Apply secure development principles and healthcare compliance considerations, including HIPAA, PHI handling, HITRUST, and PCI-DSS requirements, to frontend architecture and platform design decisions.
Define frontend platform standards for performance, scalability, accessibility, resiliency, and security.
Define and evolve frontend CI/CD standards including automated testing, deployment workflows, release governance, environment management, and production rollout strategies.
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.
Leadership & Engineering Excellence
Serve as the principal technical authority and mentor for frontend engineers across multiple engineering pods.
Establish and enforce coding standards, architectural governance, testing practices, and secure development patterns.
Own the frontend platform technical roadmap, including architectural direction, modernization initiatives, technical debt reduction, and presentation of strategy and progress to engineering leadership.
Improve frontend developer experience through tooling, local development workflows, CI/CD automation, automated testing, engineering documentation, and release enablement practices.
Partner with platform and security teams to mature CI/CD pipelines, secure development workflows, automated quality gates, and frontend release processes.
Establish scalable frontend release strategies including feature flags, staged deployments, rollback mechanisms, and production validation practices.
Delivery & Cross-Functional Collaboration
Collaborate with Product, UX, Engineering, AI/ML, and Data teams to translate business requirements into scalable technical solutions.
Integrate frontend applications with backend microservices, orchestration platforms, and third-party APIs including Salesforce, Salesforce Marketing Cloud, Twilio, and other enterprise platforms.
Lead the strategic migration of mobile applications from Flutter to React Native, establishing the architecture, tooling, and engineering patterns for a unified cross-platform codebase.
Partner with platform and infrastructure teams to optimize frontend deployment strategies across Azure cloud environments.
Innovation & Strategy
Evaluate and introduce emerging frontend technologies, frameworks, and engineering practices.
Drive personalization and intelligent engagement capabilities leveraging AI/ML-powered experiences.
Contribute to long-term frontend Platform strategy, technical innovation initiatives, and engineering thought leadership.
Required Skills & Experience
Technical Expertise
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.
Architecture & Systems
Experience designing and supporting multi-brand, multi-tenant frontend platforms.
Strong understanding of microservices architectures and GraphQL/REST API integration patterns.
Experience with Azure cloud services including App Services, Static Web Apps, CDN, and Blob Storage.
Familiarity with CI/CD pipelines, containerization, and modern deployment workflows.
Experience implementing frontend observability and monitoring solutions such as Datadog, Sentry, New Relic, or OpenTelemetry.
Understanding of secure application development and regulated environment considerations.
Leadership & Collaboration
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.
Preferred Qualifications
Experience building applications within healthcare, healthcare technology, or other regulated industries.
Familiarity with HIPAA, PHI handling, HITRUST, PCI-DSS, or related compliance frameworks.
Experience supporting multilingual and internationalized digital platforms.
Familiarity with AI/ML-driven personalization, conversational UI, or intelligent engagement experiences.
Exposure to Flutter or legacy hybrid mobile frameworks.
Experience with Storybook, Figma integration workflows, and design token management.
Experience with micro frontend architectures and edge delivery platforms.
Preferred Technology Stack
React.js / Next.js
React Native
TypeScript
Sanity.io
FusionAuth
GraphQL / REST APIs
Azure Cloud Services
Storybook / Design Systems
GitHub Actions / Azure DevOps
Datadog / Sentry / OpenTelemetry

• Technical Leadership & Team Management
• React.js / React Native Development
• TypeScript / JavaScript Development
• Azure Cloud Platform Experience
• CI/CD & Containerization Expertise
• Healthcare Compliance & Secure Development (HIPAA, HITRUST, PCI-DSS)
• Frontend Architecture & Platform Engineering
• Headless CMS Integration (Sanity.io)
• Authentication & Identity Solutions (OAuth2/OIDC, FusionAuth)
• Performance & Accessibility Optimization (WCAG 2.1+)
• Design System Governance & Component Library
• Multibrand, Multitenant Platform Strategy
• AI/MLpowered Personalization

• React.js / Next.js
• React Native
• TypeScript / JavaScript
• Sanity.io (Headless CMS)
• FusionAuth / Auth0 / Okta / Azure AD (OAuth2/OIDC)
• Azure App Services / Azure Static Web Apps / Azure CDN / Azure Blob Storage
• GitHub Actions / Azure DevOps (CI/CD)
• Docker / Containerization
• Datadog / Sentry / OpenTelemetry
• Storybook / Figma (Design System Tools)
• GraphQL / REST APIs
• Redux Toolkit / React Query / Zustand / Apollo (State Management)
• Webpack / Vite (Build Tools)

Bachelor's Degree in Computer Science, Software Engineering, Information Technology, Human-Computer Interaction, Computer Engineering. Preferred: Master's Degree in Computer Science, Master's in Software Engineering, MBA (Technology Management).

• Healthcare Technology
• Medical Software
• Regulated Industries (HIPAA, HITRUST, PCI-DSS)
• Digital Health Platforms
• SaaS / Cloud