Sr. Software Engineer, Automation Experience (Remote Eligible from Bulgaria)

For over 20 years, Smartsheet has helped people and teams achieve–well, anything. From seamless work management to smart, scalable solutions, we’ve always worked with flow. We’re building tools that empower teams to automate the manual, uncover insights, and scale smarter. But more than that, we’re creating space– space to think big, take action, and unlock the kind of work that truly matters. Because when challenge meets purpose, and passion turns into progress, that’s magic at work, and it’s what we show up for everyday. We are looking for a passionate and experienced Senior Software Engineer to join our Workflow Builder UI pillar. In this role, you will be the primary craftsperson of our next-generation drag-and-drop workflow experience – the visual layer that thousands of teams rely on to design, configure, and automate their processes. You will shape every pixel and interaction, working at the intersection of high-performance rendering, rich component design, and developer experience. This is your opportunity to build a product that end-users see and touch every single day, deeply integrating modern React patterns, leading UI component libraries, and – as a nice-to-have – MCP UI tooling to accelerate development velocity. You will work remotely from Bulgaria and will be reporting to an engineering leader. You Will: Own the Workflow UI Experience Architect, build, and iterate on the Workflow Builder front-end, delivering a performant, accessible, and delightful drag-and-drop editing experience. Drive component design, layout systems, and interaction patterns that scale across Smartsheet's enterprise customer base. Champion visual quality, pixel-precision, and a high bar for UX polish throughout the development lifecycle. Develop with React UI Libraries Build production-grade features using React (v18+), leveraging hooks, context, concurrent rendering, and Suspense for advanced UI behaviors. Integrate and extend component libraries (e.g., MUI, Radix UI, Shadcn/ui, or internal design system components) to create a consistent, reusable UI language across the product. Evaluate and champion the adoption of new React capabilities and ecosystem tooling that improve developer productivity and user experience. Build Scalable and Secure Services Develop scalable back-end services and APIs with a security-first mindset, ensuring high availability and performance in our multi-cloud environment (primarily AWS). Create and maintain API integrations between internal and external systems. Implement and test API solutions to ensure they meet functionality, performance, and security standards. Monitor API performance and address any integration challenges or issues. Participate in architectural discussions and code reviews, advocating for front-end best practices: code splitting, memoization strategies, accessibility (WCAG AA), and performance budgets. Define and uphold front-end coding standards, patterns, and automated testing strategies (unit, integration, visual regression) across the pillar. Deliver High Quality at Scale Write comprehensive unit and integration tests (Jest, Cypress, Playwright) with a strong culture of test-driven development and visual regression coverage. Monitor front-end performance metrics (Core Web Vitals, bundle size, rendering throughput), identify bottlenecks, and drive measurable improvements. Partner with UX designers to translate wireframes and prototypes into refined, fully accessible UI components. Mentor Lead Serve as a UI subject matter expert for the team, mentoring junior and mid-level engineers on React best practices, component design, and scalable state management. Contribute to technical roadmap planning and effort estimation for UI-heavy features, surfacing risks and tradeoffs to engineering leadership. Strategically apply AI Tools Champion the use of AI-assisted development tools (GitHub Copilot, Claude, Cursor, etc.) within the team to accelerate feature development an ... (truncated, view full listing at source)