Rainfocus
Rainfocus2d ago
New

Sr. UI Developer

United StatesUnited States·LehiRemoteFull Timesenior
EngineeringFrontend Developer
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Quick Summary

Requirements Summary

Works well in a fast-paced, pivoting environment. A collaborative team player. Experience with client-facing conversations and strategic planning. Experience with email templating and web page theming. Knowledge of front-end testing frameworks.

Technical Tools
anthropicjavascriptreactsveltetypescriptcode-reviewfrontend-performancementoringsaasstrategic-planning

About the Role

~3 min read

The Senior UI Developer acts as a technical pillar and strategic lead within our engineering and branding teams. You are responsible for the architectural integrity of the RainFocus platform’s user interfaces, ensuring our software elevates the attendee experience for in-person, virtual, and hybrid events. Beyond writing exceptional code, you are a real driver for innovation by evaluating new technologies, identifying gaps in our current software suite, and architecting solutions to solve those complex business needs. You will actively champion team initiatives, mentor junior staff, and ensure our platform meets the high-scale, rigorous demands of our Fortune 500 clients. Your focus will be on architecture, mentorship, innovation, and high-level strategy. 

  • Drive Innovation: Act as a relentless driver for new technologies and industry best practices. Evaluate emerging frameworks, tools, and methodologies to keep the RainFocus platform at the cutting edge where able.

  • Build & Bridge Gaps: Proactively identify technical gaps or missing capabilities within the software. Lead the architecture, scoping, and development of new features to solve these complex business needs from the ground up.

  • Lead Group Initiatives: Champion cross-functional engineering goals and push for active team participation in technical guilds, knowledge-sharing sessions, and company-wide objectives.

  • Architect Scalable Systems: Design maintainable, performant, and scalable front-end systems (using React, Svelte, or Web Components) that support global, enterprise-grade event applications.

  • Strategize & Collaborate: Partner closely with Product Management, UX/UI Designers, and backend teams to define the future of the core product and ensure seamless API integrations.

  • Mentor & Elevate: Mentor junior and mid-level developers through thorough code reviews, paired programming, and by fostering a culture of high-trust stewardship and perpetual improvement.

  • Enterprise White Labeling & Theming: Architect robust, scalable theming solutions on top of our existing SaaS platform, empowering enterprise clients to seamlessly overlay their unique brand identities and deliver fully customized, white-labeled user experiences.

  • Experience: 5–7+ years of professional front-end development experience, preferably in a SaaS, enterprise, or high-traffic environment.

  • Technical Mastery: Expert-level proficiency in modern JavaScript/TypeScript, React, Svelte, and advanced CSS/SASS architectures.

  • Industry Standards: Deep understanding of modern web standards, including Core Web Vitals optimization, state management (e.g., Redux, Context), and responsive design principles.

  • Leadership: Proven track record of taking ownership of large-scale epics, managing technical debt, and managing company resources responsibly.

  • Communication: Exceptional ability to translate complex technical concepts and project roadblocks for non-technical stakeholders and executive leadership.

  • Vision: A forward-thinking mindset with a strong desire to challenge the status quo, improve processes, and deliver world-class user experiences. 
  •  
  • AI Tooling Proficiency: Practical, hands-on experience using generative AI and AI-assisted development tools (such as Copilot, Claude, Codex, Cursor, or similar) to enhance productivity, assist in complex problem-solving, and streamline coding workflows. You don't need to be an AI expert, but you should be an active, forward-thinking user of these technologies to drive efficiency.
  • Requirements

    ~1 min read
  • Works well in a fast-paced, pivoting environment.

  • A collaborative team player.

  • Experience with client-facing conversations and strategic planning.

  • Experience with email templating and web page theming.

  • Knowledge of front-end testing frameworks.

  • Location & Eligibility

    Where is the job
    Lehi, United States
    Remote within one country
    Who can apply
    US

    Listing Details

    Posted
    May 4, 2026
    First seen
    May 4, 2026
    Last seen
    May 5, 2026

    Posting Health

    Days active
    1
    Repost count
    0
    Trust Level
    76%
    Scored at
    May 6, 2026

    Signal breakdown

    freshnesssource trustcontent trustemployer trust
    Rainfocus

    RainFocus is the next-generation event marketing platform built to capture and analyze unprecedented amounts of first-party data for exceptional events and optimized engagement throughout the customer journey.

    Employees
    350
    Founded
    2013
    View company profile
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    RainfocusSr. UI Developer