Senior UI Platform Engineer, New York

Jain Global•New York, NY

About The Position

Jain Global is an innovative multi-strategy, multi-manager investment firm founded to achieve scale on Day 1 across regions, markets, and investors. The company has over 300 employees working from offices in New York, Houston, London, Singapore, and Hong Kong. The Core Platform team defines and builds shared engineering foundations for application and API teams. This role will help accelerate internal web application development and improve consistency across teams, in close partnership with the API Platform and other development teams. It focuses on reusable UI packages, application scaffolding, authentication and authorization integration, developer experience, and internal platform applications that support onboarding, access, and discovery. The role creates capabilities that can be adopted across teams, regions, and business domains.

Requirements

Strong professional experience with React and TypeScript.
Strong understanding of modern frontend architecture and application structure.
Experience building reusable UI components, shared packages, or internal developer tooling.
Experience with routing, state/data-fetching, and API integration in web applications.
Experience with enterprise authentication and authorization patterns.
Strong understanding of testing, build tooling, and frontend developer workflows.
Strong communication skills and practical engineering judgment.

Nice To Haves

Approximately 5+ years of relevant software engineering experience, with strong frontend depth in React and TypeScript.
Experience in platform engineering, developer enablement, or building reusable internal tooling.
Experience with Vite, Next.js, or both.
Experience with UI/component libraries such as Ant Design, AG Grid, or similar.
Experience with observability tooling such as Datadog, OpenTelemetry, or Grafana.
Experience with Microsoft Entra ID / Azure AD or similar identity platforms.
Experience publishing and maintaining internal npm packages.
Experience building admin, control-plane, or internal workflow UIs.
Familiarity with financial services or complex internal application environments.

Responsibilities

Build reusable frontend foundations for internal web applications.
Develop and maintain shared React/TypeScript packages, components, and tooling.
Create and improve starter templates, application scaffolding, and developer workflows.
Help define standards for application structure, testing, deployment, and supportability.
Partner with other engineering teams on shared concerns, including authentication, authorization, observability, and frontend/backend integration patterns.
Contribute to internal platform applications such as onboarding, access administration, and service discovery experiences.
Evaluate and maintain third-party frontend dependencies and shared UI tooling.
Support adoption through documentation, examples, and direct collaboration with developers across technology and investment teams.