Senior Software Engineer

Fidelity Investments•Westlake, TX

3d•Hybrid

About The Position

We are seeking a Senior Software Engineer to join our Central Monorepo Platform Team supporting the PI Wealth Management Experience Platform. This role is critical to enabling hundreds of developers teams across accounts, advice, investments, planning, and other wealth management domains by providing world-class developer tooling, infrastructure, and platform capabilities within our enterprise-scale Nx workspace.

Requirements

5+ years of full-stack development experience with TypeScript/JavaScript
3+ years working with large-scale monorepos or multi-team codebases
2+ years experience with Nx, Lerna, or similar monorepo tools
Strong experience building developer tooling, CLI tools, or platform engineering
Experience with CI/CD pipeline design and optimization
Background in enterprise software development with governance and compliance requirements
Core Technologies
Frontend: Angular 18+, TypeScript, RxJS, NgRx
Backend: NestJS, Node.js, Express, GraphQL
Monorepo: Nx workspace management, dependency graphs, project boundaries
Build Tools: Webpack, Jest, ESLint, Storybook
Platform & Infrastructure
CI/CD: Jenkins, Docker, containerization strategies
Package Management: npm, dependency resolution, workspace management
Code Quality: Custom ESLint rules, automated testing, code generation
Version Control: Git, branching strategies, merge automation
Enterprise Integration
REST API design and enterprise standards
Authentication/authorization patterns
Microservices architecture
Cloud deployment (AWS/FMR Cloud)
Personal Attributes
Systems Thinking: Ability to see the big picture and design solutions that scale across hundreds of applications
Developer Empathy: Strong focus on developer experience and productivity
Communication: Excellent written and verbal communication for documentation and community building
Problem Solving: Ability to debug complex issues across multiple domains and technologies
Collaboration: Experience working with diverse teams and establishing technical consensus
Continuous Learning: Passion for staying current with tooling, frameworks, and best practices

Nice To Haves

Experience with financial services or regulated industry software development
Background in creating custom ESLint plugins, AST manipulation, or code generation
Knowledge of enterprise architecture patterns and domain-driven design
Experience with performance optimization for large JavaScript/TypeScript codebases
Familiarity with accessibility standards (WCAG) and enterprise security requirements

Responsibilities

Platform Engineering & Developer Experience
Design, develop, and maintain custom Nx generators, executors, and tooling to accelerate team productivity
Build and enhance developer tooling including custom ESLint rules, linting standards, and code quality automation
Create and maintain CLI tools, build scripts, and automation to reduce developer toil
Develop migration scripts and automated refactoring tools for large-scale codebase updates
Monorepo Architecture & Governance
Establish and enforce architectural patterns, coding standards, and best practices across applications and libraries
Design domain boundaries and dependency management strategies for accounts, advice, investments, planning, and infrastructure domains
Implement and maintain enterprise API standards including REST conventions, versioning, and header requirements
Create documentation, onboarding materials, and developer guidelines
Infrastructure & CI/CD
Maintain and optimize Jenkins-based CI/CD pipelines for build, test, and deployment automation
Manage Docker containerization strategies including node-chrome and base image management
Implement and enhance build optimization, caching strategies, and dependency management
Support deployment automation and environment management across DIT, UAT, and production
Developer Support & Community Building
Provide technical consultation and support to development teams across the organization
Lead weekly community forums and collaborate on standards definition
Troubleshoot complex build, tooling, and dependency issues
Mentor teams on monorepo best practices and architectural decisions