Principal Software Engineer React, UI

Your next role should amplify your impact and accelerate your growth. Join a collaborative handson team building UI architecture and reusable component platforms that power secure intuitive Trade Finance experiences at scale.

As a Principal Software Engineer at JPMorganChase within the Trade & Working Capital you will set the technical direction for frontend architecture and be hands-on building reusable React/TypeScript components and patterns adopted across multiple squads. Youll partner across Product Design and Engineering to deliver consistent UX high-performance UIs and reliable integrations with Java-based services. Youll work closely with product design and backend architecture. Turning complex requirements into simple compliant front-end systems that hold up in regulated environments. We value practical leadership clear communication and accountability for outcomeswhile staying close to code and production.

Job responsibilities

• Own frontend architecture for customer-facing applications including application structure routing state management module boundaries and integration patterns to enable scale resiliency and rapid delivery.
• Design build and maintain a reusable component platform/design system (React TypeScript): core UI primitives complex workflow components accessibility standards theming documentation and versioned release strategy.
• Stay hands-on in code: build high-impact components reference implementations and templates; drive adoption through pull requests pairing and technical reviews.
• Define and evolve shared UI patterns (forms validation tables/grids document upload approvals error handling notifications entitlements-based rendering) to ensure consistency across customer journeys.
• Partner with backend teams to shape API contracts optimized for UI (latency expectations pagination error semantics idempotency versioning) and drive UI-friendly patterns (BFF where appropriate).
• Establish frontend performance engineering practices: bundle strategy rendering efficiency caching and Core Web Vitals; ensure high performance under real-world workloads. Implement frontend observability and operability: client-side logging/metrics correlation IDs trace linkage actionable dashboards and runbooks for production support.
• Lead secure-by-design UI engineering: authN/authZ flows secure session handling PII masking XSS/CSRF protections dependency governance and compliance guardrails. Coach engineers and raise standards in UI architecture component quality testing and documentation ensuring reusable assets are reliable and discoverable.
• Own delivery outcomes across multiple squads: roadmap alignment for the UI platform release readiness dependency management and risk mitigation/escalation.
• Lead incident response and root-cause analysis for customer-facing applications; drive corrective/preventive actions that improve stability and user experience. Applies knowledge of tools within the Software Development Life Cycle toolchain including enterprise-authorized AI-assisted development and automation capabilities to improve the value realized by automation at scale.
• Apply GenAI/LLMs to enhance UI and operational workflows (e.g. guided task completion intelligent assistance search/summarization) with appropriate controls and governance.
• Architects and governs agentic AI-enabled engineering workflows (using enterprise-authorized tools within the work environment) to improve delivery speed code quality and operational outcomes at scale (e.g. AI-driven PR review assistance test generation/maintenance release readiness checks incident triage and root-cause acceleration) while defining guardrails for validation security resiliency and reuse across teams.

Required qualifications capabilities and skills

• Formal training or certification on software engineering concepts and 10 years of applied addition 5 years of experience leading technologists to manage anticipate and solve complex technical items within your domain of expertise
• Strong hands-on experience building frontend architecture for large-scale web applications using React TypeScript including state management component APIs and modularization strategies.
• Proven experience building reusable component libraries/design systems (versioning adoption strategy documentation accessibility) and driving usage across teams.
• Demonstrated ability to be hands-on: shipping production UI code leading complex refactors/migrations and unblocking teams through practical implementation.
• Experience with frontend testing strategy (unit/integration/E2E) CI/CD and release safety mechanisms (feature flags canaries/rollbacks).
• Strong understanding of secure development practices for customer-facing apps in regulated environments (PII handling dependency risk secure coding).
• Ability to communicate complex technical topics clearly to senior stakeholders across product design engineering operations and risk.
• Demonstrated experience designing and leading adoption of agentic AI-enabled development practices (using enterprise-authorized tools within the work environment) across teams including setting standards for human-in-the-loop validation auditability/traceability of changes and secure handling of sensitive data.
• Strong understanding of responsible AI use and control expectations in engineering workflows including security/resiliency implications data sensitivity and risk-based governance; ability to influence senior technical leaders on safe scaling patterns and reuse.

Preferred qualifications capabilities and skills

• Experience modernizing legacy UIs into next-generation UI architectures (incremental migration strategies shared component adoption platform rollout).
• Prior experience in banking fintech trading or capital markets platforms.
• Background in technology consulting or professional services.