Senior Front end Developer

Senior Front End Developer Front‑End Expert (80%) with Backend Development Capabilities (20%) We're partnering with Pluvo, a growing fintech startup, to find an experienced Senior Full Stack Developer to join their team at a critical stage of scale. If you love solving complex performance challenges, optimizing systems for scale, and working with cutting‑edge technologies — this role is your chance to make a direct impact on a product used by finance teams every day. Technical Leadership & Architecture Define and drive the front‑end technical strategy and architecture decisions Own the entire front‑end codebase, component library, and design system Establish front‑end best practices, coding standards, and development workflows Make critical technology decisions that shape the product's future Lead technical discussions with Product, Design, and Backend teams Building Data‑Intensive Interfaces Build and optimize complex data grid interfaces displaying large financial datasets Implement sophisticated table components with sorting, filtering, grouping, and real‑time updates Create intuitive financial dashboards with interactive charts and data visualizations showing forecasts, scenarios, and variance analysis Build compelling visual representations of financial data using modern charting libraries (line charts, bar charts, waterfall charts, heatmaps, etc.) Handle client‑side data transformations and state management for complex financial calculations Optimize rendering performance for data‑heavy visualizations with millions of data points Modern Component Systems Develop and maintain reusable, composable component systems using Next.js and React best practices Build pixel‑perfect interfaces from Figma designs with meticulous attention to detail Implement and evolve the design system for consistency across the application Create beautiful, accessible UI using Tailwind CSS utility‑first approach Performance & User Experience Own front‑end performance – optimize rendering for data‑heavy financial calculations and visualizations Implement smart caching strategies and memoization for complex component trees Ensure buttery‑smooth interactions even with millions of data points Build intuitive user flows that make complex financial operations feel simple Champion accessibility and best practices across all interfaces Backend Development & API Integration Build lightweight Node.js endpoints and API routes when needed to support front‑end features Collaborate closely with Back end team to define API contracts and data structures Develop serverless functions or Next.js API routes for data processing and third‑party integrations Write SQL queries and work with databases (PostgreSQL) for data retrieval and manipulation Consume RESTful and GraphQL APIs effectively with proper error handling and loading states Understand backend data models to build efficient front‑end data flows Contribute to API design discussions from a front‑end perspective Troubleshoot integration issues and optimize data fetching patterns Team Collaboration & Mentorship Work closely with Product and Design to translate vision into technical execution Mentor and guide junior developers as the team grows Conduct code reviews and elevate the overall code quality Contribute to hiring and building the front‑end team Foster a culture of excellence in front‑end development Requirements 5+ years of professional front‑end development experience with production React applications Proven experience owning front‑end codebases and making architectural decisions independently Expert‑level proficiency in React and Next.js – you understand React internals, hooks patterns, and performance optimization deeply Deep TypeScript expertise – you write type‑safe code and leverage advanced TypeScript features Strong Tailwind CSS skills – you can rapidly build responsive, beautiful interfaces with utility classes Experience building complex data grid systems – you've worked with large datasets, virtual scrolling, and high‑performance table rendering Strong product sense – you think about user experience and can push back constructively on designs Proven track record shipping polished, production‑ready UIs with excellent attention to detail Strong understanding of modern JavaScript (ES6+) async patterns, and browser APIs Experience with state management solutions (Context API, Zustand, Redux, or similar) Solid understanding of responsive design, CSS Grid, Flexbox, and mobile‑first development Strong API consumption skills – you know how to work effectively with RESTful and GraphQL APIs Practical backend experience – comfortable writing Node.js code, API routes, and basic SQL queries when needed Experience with Git/GitHub workflows and collaborative development Excellent communication skills and ability to work independently in a fast‑paced environment Entrepreneurial mindset – you thrive with autonomy and can drive initiatives from concept to completion Nice to Haves Experience with AG Grid or similar enterprise data grid libraries (Tanstack Table, React Data Grid) Familiarity with ShadCN/ui component library for building accessible, customizable components Experience with Express.js or other Node.js frameworks for building more complex APIs Experience working with PostgreSQL or other relational databases at scale Understanding of database design, indexing, and query optimization Experience with Radix UI primitives and building accessible UI components Knowledge of data visualization libraries (Recharts, D3, Chart.js, or similar) Experience building financial software, dashboards, or BI tools Familiarity with fintech or FP&A platforms (Runway, Vena, Datarails) Experience with animation libraries (Framer Motion, React Spring) Knowledge of testing frameworks (Jest, React Testing Library, Playwright, Cypress) Experience with tRPC for end‑to‑end typesafe APIs Experience building and documenting design systems (Storybook) Previous experience at a high‑growth startup Familiarity with CI/CD pipelines and deployment workflows Experience with AWS services (Lambda, RDS, S3) or similar cloud platforms Seniority level Mid‑Senior level Employment type Contract Job function Other #J-18808-Ljbffr