Senior Front-end Lead

Date PostedJune 1, 2026LocationSantiago (Chile)CompanyKrunchboxSalaryGross salary $3800 - 5500 USD/monthTypeFull-time, Hybrid

Job Summary

Krunchbox is seeking a Senior Front-end Lead to spearhead the modernization of their global SaaS analytics platform. You will be responsible for architecting a new React/TypeScript stack while transitioning from legacy systems to provide high-performance data visualization for enterprise clients. The role offers the opportunity to lead the frontend strategy and build a scaling team in a collaborative environment.

Responsibilities

  • Architect and implement modern Reports and Dashboards using React/TypeScript.
  • Transition legacy jQuery/Bootstrap codebase to a modern stack.
  • Manage frontend contractors and lead the long-term frontend roadmap.
  • Develop high-performance data visualizations using AG Grid and Plotly.
  • Establish frontend best practices and mentor the engineering team.

Required Skills

  • 5+ years React experience
  • 2+ years TypeScript proficiency
  • AG Grid expertise
  • State management (Redux/Zustand)
  • Leadership and mentoring experience

Job Details

Key Responsibilities: - Act as the senior frontend architect for the analytics platform, owning the design and implementation of Reports and Dashboards. - Lead the transition from legacy codebases (jQuery/Bootstrap) to a modern React/TypeScript stack across core analytics modules. - Directly manage frontend contractors during the transition and guide the long-term frontend roadmap, with the opportunity to build and lead a scaling team. - Implement AG Grid for high-performance data tables handling massive datasets with smooth paging and virtualization. - Build a reusable component library using shadcn/ui and Tailwind CSS to ensure consistency and rapid delivery. - Integrate with Plotly for advanced data visualizations and analytics storytelling. - Optimize UI performance to achieve sub-2-second dashboard load times and snappy interactions. - Establish frontend best practices, testing standards, and accessibility considerations, collaborating with UX to simplify complex analytics workflows. - Collaborate with product, data, and backend teams to align on requirements, APIs, and data models. - Leverage AI development tools such as ClaudeCode, Codex to increase development productivity. Required Experience & Skills: - 5+ years of React experience, with at least 2+ years using TypeScript. - Expert-level knowledge of React performance optimization and long-term maintainability. - Hands-on experience with data-heavy applications and virtual scrolling techniques. - Proven experience with AG Grid or similar data grid libraries in large-scale enterprise contexts. - Strong understanding of state management (Redux, Zustand, or Context API). - Experience leading frontend teams and mentoring developers. - Track record of delivering enterprise SaaS applications. Desirable Skills & Experience: - Experience working on analytics/BI platforms and data visualization libraries. - Familiarity with real-time data streaming and WebSocket real-time updates. - Prior exposure to micro-frontend architectures. - Comfort working in fast-paced, collaborative environments. Benefits: - Competitive compensation package. - Comprehensive health and benefits coverage. - Hybrid work environment allowing for a mix of remote and in-office work. - Computer provided for work duties. - Informal dress code.