Principal Software Engineer I - Platform (ReactJS)

ConnectWise is an industry and Global leading software company with over 3,000 colleagues in North America, EMEA and APAC. As a community-driven software company dedicated to the success of technology solution providers, our suite helps over 45,000 of our partners manage their businesses better, sell more efficiently, automate service delivery, and remotely control technology so they can consistently deliver amazing customer experiences. Our company is powered by our connections, our colleagues, and our community. And, we accept all kinds. Game-changers, innovators, culture-lovers—and humankind. We invite discovery and debate. We recognize key moments as milestones. We see you and value you for your unique contributions. Our inclusive, positive culture lays the foundation to ensure every colleague is valued for their perspectives and skills, giving you the choice of how YOU make a difference. Curious? Read this opportunity to learn how YOU can make a difference at ConnectWise! General Summary: The Principal Software Engineer I is responsible for developing high-quality, innovative, fully performing software in compliance with coding standards. This individual works in partnership with cross-functional teams to ensure that software deliverables, including designs, codes, and tests, are completed in a timely manner, while remaining aligned with industry and organizational standards. Essential Duties & Responsibilities: 1. Platform Architecture & Strategy Define and evolve the frontend platform architecture (React, TypeScript, micro-frontends if applicable) Establish patterns for: Component architecture (atomic / design system-driven) State management (Redux Toolkit, Zustand, server state via React Query, etc.) Make build vs buy decisions for UI tooling 2. Design System & Component Platform Lead development of a scalable design system Ensure: Accessibility Internationalization (i18n) Theming and white-labeling capability Maintain reusable component libraries (Storybook, tokens, primitives) Enable cross-product UI consistency 3. Developer Experience (DX) & Tooling Build and maintain: Monorepo tooling CLI tools and scaffolding generators CI/CD pipelines for frontend apps Optimize: Build performance Test pipelines Local developer setup Standardize linting, formatting, and code quality practices 4. Performance & Scalability Define and enforce performance budgets (Core Web Vitals) Lead optimization across: Bundle size (code-splitting, tree-shaking) Runtime performance Rendering strategies Implement observability for frontends: RUM tools (Dynatrace, Datadog, New Relic, etc.) 5. Architecture Governance Act as the technical authority for frontend/UI decisions Conduct architecture reviews and POC evaluations Define coding standards and engineering guidelines Mentor senior engineers and influence cross-team decisions 6. Micro-Frontend & Platform Integration Define strategies for: Micro-frontends (Module Federation, SPA composition) Shared dependencies and versioning Build robust integration patterns with backend services (GraphQL/REST/BFF) Ensure platform scalability across teams and products 7. Security & Compliance Enforce frontend security best practices: CSP, XSS prevention Secure auth flows (OAuth, OIDC) Work with platform/security teams on compliance requirements 8. Leadership & Influence Act as a multiplier across teams , not just an individual contributor Influence product and business decisions via technical insight Represent frontend engineering in executive-level discussions Drive engineering culture and innovation Knowledge, Skills, and/or Abilities Required: 8+ years of software engineering experience with deep expertise in React & modern frontend ecosystems Proven experience building frontend platforms or large-scale UI systems Strong knowledge of: TypeScript, modern JavaScript (ES2025+) React internals, hooks, rendering lifecycle Next.js / SSR / edge architectures Experience with: Monorepos and build tooling Design systems…