Spfx Developer Jobs in Philadelphia, PA (NOW HIRING)

Morgan, Lewis & Bockius LLP, a leading global law firm with offices in major commercial, legal, and governmental hubs worldwide, is seeking a Knowledge Solutions Senior Developer to join our Knowledge Solutions team.

Join a small, high-impact engineering team where your work directly shapes how attorneys and business professionals access knowledge and interact with emerging AI-driven solutions across the firm. You'll own meaningful front-end architecture decisions, shape modern React experiences, and help define how AI capabilities are surfaced through intuitive, high-quality user interfaces.

If you enjoy autonomy, clean design, and building real products (not just tickets), this role is designed for you.

This position will reside in our Philadelphia office with a hybrid in-office/remote working schedule.

Responsibilities include:

• Building modern front-end applications that power internal tools, knowledge systems, and AI-driven solutions

• Developing user interfaces for AI-enabled applications, including search, summarization, and intelligent workflows

• Creating search-driven experiences backed by platforms such as Azure AI Search and other data services

• Building SPFx web parts that support the firm's intranet and knowledge ecosystem

• Improving performance, usability, and maintainability of existing applications

What you'll do:

• Design and build modern, scalable front-end applications using React, TypeScript, and modern web frameworks.

• Turn Figma designs into fast, accessible, production-quality UI.

• Own front-end architecture and make key technical decisions with minimal oversight.

• Build user experiences for AI-driven features such as search, recommendations, and data-rich interfaces.

• Collaborate with backend developers to integrate REST and GraphQL APIs, using schema-driven development and code generation.

• Build with quality by default: strong unit test coverage (Jest, React Testing Library).

• Implement feature flags to enable safe releases, experimentation, and iterative delivery.

• Write code that is testable, observable, and designed for long-term maintainability.

• Write and maintain clean, CI/CD-ready code that supports automated testing and seamless deployment processes.

• Integrate applications with Azure App Insights for monitoring and observability.

• Troubleshoot and resolve complex issues across UI and integration layers.

• Ensure adherence to security, accessibility (WCAG), and performance best practices.

How you'll work:

• High autonomy with real ownership of features end-to-end

• Close collaboration with a small, experienced team (no heavy bureaucracy)

• Pragmatic engineering: the right tools, not just trendy ones

• We favor simple, modern solutions over legacy-heavy approaches where possible

• Continuous improvement mindset around code quality, performance, and developer experience

Modern development & AI tooling:

• Actively use AI-assisted development tools (GitHub Copilot, Codex-based tools, etc.) to accelerate development

• Apply strong judgment to validate and refine AI-generated code

• Help evolve team practices around developer productivity and tooling

Experience and qualifications:

• 6-8+ years of front-end development experience

• Deep expertise in JavaScript, TypeScript, React, and modern CSS

• Experience building production-grade, user-facing applications

• Strong experience with GraphQL and client-side integration patterns

• Experience using GraphQL code generation tools

• Solid understanding of API integration and data flow

• Experience working in collaborative Git environments

• Comfort working in Agile teams

Nice to have:

• Experience with SPFx / SharePoint Online

• Familiarity with feature flagging tools (LaunchDarkly, Azure App Configuration, etc.)

• Experience building or contributing to design systems or component libraries

• Exposure to performance tuning and front-end observability

• Familiarity with authentication patterns (OAuth, MSAL)

• Experience with modern build tools such as Vite

• Familiarity with Power Platform (Power Apps, Power Automate) and integrating low-code solutions with custom-built applications

What sets you apart:

• You take pride in writing clean, testable, maintainable code

• You're a fast, independent learner who picks up new tools quickly

• You care about user experience, not just functionality

• You're comfortable owning problems and driving them to resolution

• You communicate clearly with both technical and non-technical stakeholders

What you'll get:

• High-impact work used by attorneys and business professionals across the firm

• Autonomy and trust to make technical decisions

• Opportunity to shape front-end standards and tooling

• A collaborative team that values quality over process

Morgan, Lewis & Bockius LLP is committed to equal employment opportunity and providing reasonable accommodations to applicants with physical and/or mental disabilities. We value inclusion and solicit applications from all qualified applicants without regard to race, color, gender, sex, age, religion, creed, national origin, ancestry, citizenship, marital status, sexual orientation, physical or mental disability, medical condition, veteran status, gender identity, genetic information, or any other characteristic protected by federal, state, or local law.

Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment qualified applicants with arrest and conviction records.

California Applicants: Pursuant to the California Consumer Privacy Act, the following link contains the Firm's California Consumer Privacy Act Privacy Notice for Candidates which explains the categories of personal information that we collect and the purposes for which we use such personal information. CCPA Privacy Notice for Candidates

Morgan, Lewis & Bockius, LLP reasonably accommodates applicants and employees who need them to perform the essential functions of the job because of disability, religious belief, or other reason protected by applicable law. If you believe you need a reasonable accommodation during the application process, please contact Talent Acquisition at 888.534.5003 or talent.acquisition@morganlewis.com

If hired, your employment relationship with the firm will be on an "at-will" basis, meaning that the firm may modify the terms and conditions of your employment at any time, and that either you or the firm will be free to end the relationship at any time with or without cause and with or without advance notice, although reasonable notice would be expected.