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职位JPMorgan Chase

Software Engineer III - Front-End Developer - ReactJS

JPMorgan Chase

Software Engineer III - Front-End Developer - ReactJS

JPMorgan Chase

Ciudad Autónoma de Buenos Aires, Argentina, AR

·

On-site

·

Full-time

·

1mo ago

必备技能

JavaScript

TypeScript

React

GraphQL

About the role
We’re seeking a 602 Software Engineer to build and evolve modern web applications using React and Redux, with a primary focus on GraphQL for data access. You’ll collaborate with product, design, and platform teams to deliver secure, performant, and accessible user experiences at scale. Experience with micro-frontend (MFE) architectures is a plus.

What you’ll do

  • Build, test, and maintain responsive React applications using modern patterns (hooks, functional components, context where appropriate).
  • Implement predictable state management with Redux/Redux Toolkit, including middleware, selectors, and efficient store design; integrate cleanly with GraphQL client caches.
  • Integrate with GraphQL services using Apollo Client or urql: define queries, mutations, and subscriptions; manage normalized caching, pagination (cursor/relay style), error handling, retries, and optimistic updates.
  • Partner with backend teams on schema and API contracts (SDL), versioning, and performance patterns (query batching, persisted queries, avoiding n+1 issues).
  • Partner with design to implement accessible (WCAG-compliant) and consistent UI aligned to a design system.
  • Write high-quality, well-tested code (Jest, React Testing Library); automate via CI/CD and follow trunk-based development or Git Flow as applicable.
  • Profile and optimize performance (bundle size, code splitting, memoization, virtualization, lazy loading) and GraphQL network usage (field-level policies, cache keys).
  • Participate in architecture/design reviews, code reviews, and contribute to shared libraries and component systems.
  • Document components and patterns for reusability; mentor peers and contribute to engineering best practices.
  • Leverage AI-assisted development tools and prompt engineering techniques to accelerate coding workflows, generate boilerplate, write tests, refactor code, and improve documentation quality.

Must-have qualifications

  • Professional experience building production-grade React applications (typically 5+ years or equivalent depth).
  • Strong JavaScript and TypeScript fundamentals; ESNext, modules, and typing best practices.
  • Deep experience with Redux/Redux Toolkit and app-level state architecture; familiarity with coordinating Redux state and GraphQL client caches.
  • Hands-on experience integrating GraphQL in production front-ends (Apollo Client or urql): queries, mutations, subscriptions, fragments, cache normalization and policies, pagination strategies, error boundaries, and GraphQL Code Generator.
  • Testing expertise across unit, integration, and component tests; familiarity with mocking GraphQL operations and contract testing.
  • Solid grasp of web fundamentals: semantic HTML, modern CSS (CSS-in-JS, Modules, or utility-first), responsive design.
  • Front-end build tooling (Webpack/Vite), package managers, and linting/formatting (ESLint, Prettier).
  • Understanding of auth flows (OAuth/OIDC, JWT), secure storage patterns, and front-end security basics (CSP, CORS, security headers).
  • Version control with Git and collaborative development in Agile environments.
  • Ability to effectively use AI coding assistants (e.g., GitHub Copilot, LLM Suite) and craft clear, context-rich prompts to improve productivity, code quality, and problem-solving efficiency.

Nice to have

  • Micro-frontend architectures (Webpack Module Federation, single-spa, import maps); experience with shared runtime and dependency governance.
  • Monorepo tooling (Nx, Turborepo) and shared UI libraries/design systems (Storybook).
  • Node.js for front-end build tooling or BFFs; familiarity with GraphQL gateways and schema stitching/federation concepts.
  • Observability for front-end (metrics, logging, tracing, error monitoring) and feature flagging/experimentation.
  • Advanced accessibility expertise (ARIA patterns, keyboard navigation, screen reader support).
  • Cloud and CDN basics; understanding of edge caching and performance optimization for APIs and assets.

How we work

  • Customer-centric, iterative delivery with clear acceptance criteria and measurable outcomes.
  • Code reviews, pair/mob programming as needed, and continuous improvement through retrospectives.
  • Emphasis on reliability and resilience: meaningful monitoring, alerting, and on-call participation where applicable.

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关于JPMorgan Chase

JPMorgan Chase

JPMorgan Chase & Co. is an American multinational banking institution headquartered in New York City and incorporated in Delaware. It is the largest bank in the United States, and the world's largest bank by market capitalization as of 2025.

300,000+

员工数

New York City

总部位置

$500B

企业估值

评价

3.8

10条评价

工作生活平衡

3.2

薪酬

4.1

企业文化

3.8

职业发展

3.0

管理层

2.5

65%

推荐给朋友

优点

Good benefits and compensation

Supportive and collaborative environment

Flexible work arrangements

缺点

Long hours and heavy workload

Management issues and lack of direction

High stress during peak times

薪资范围

41个数据点

Junior/L3

Mid/L4

Senior/L5

Junior/L3 · Analytics Solutions Associate

1份报告

$139,000

年薪总额

基本工资

$107,000

股票

-

奖金

-

$139,000

$139,000

面试经验

5次面试

难度

3.0

/ 5

时长

14-28周

录用率

40%

体验

正面 20%

中性 80%

负面 0%

面试流程

1

Application Review

2

HireVue Video Interview

3

Recruiter Screen

4

Superday/Panel Interview

5

Final Interview

6

Offer

常见问题

Behavioral/STAR

Technical Knowledge

Culture Fit

Past Experience

Case Study