React.js+ .Net Developer

React.js + .Net Developer Requirements

• 3+ years of professional experience with React in production web applications;
• Solid proficiency in Type Script — comfortable with typed props, interfaces, enums, and basic generics;
• Experience with Material UI (MUI) or a comparable component library — building complex, data-heavy UIs (data grids, forms, dashboards);
• Experience with state management — Redux, Redux Toolkit, Zustand, or similar;
• Experience with form handling and validation in React (any library — React Hook Form, Formik, etc.);
• RESTful API integration — consuming APIs, handling authentication, error states, loading/pagination;
• Understanding of C#/.NET basics — ability to read and navigate a .NET Web API codebase; willingness to contribute to the backend when needed for end-to-end delivery;
• Familiarity with relational databases — writing and understanding SQL at a working level (Postgre
  
  SQL, MS SQL, or similar);
• Git proficiency — branching, pull requests, code review workflows;
• Experience working in remote, agile teams — clear async communication, self-organisation;
• English at B1+ level — written communication, periodic calls with English-speaking stakeholders.

• Experience specifically with MUI (Material UI) and MUI X Pro components (Data Grid, Charts, Date Pickers);
• Experience with Redux Toolkit (slices, RTK Query);
• Experience with React Hook Form + Yup/Zod validation;
• Familiarity with Vite as a build tool;
• Experience with Entity Framework Core and/or Dapper;
• Familiarity with Azure services — Static Web Apps, Service Bus, Blob Storage;
• Experience with Swagger/OpenAPI-based API client generation;
• Knowledge of multi-tenant SaaS architecture patterns;
• Familiarity with the affiliate/performance marketing domain (offers, conversions, postbacks);
• Experience with Jest + React Testing Library for frontend testing;
• Experience with AI-assisted development tools (Cursor, Copilot, Claude Code).

• Develop and maintain the React/Type Script front-end application across multiple product modules — Offer Management, Partner Platform, Marketplace, Reporting, Dashboards, and more;
• Build complex, data-rich UI components using MUI and MUI X Pro (data grids, charts, forms, date pickers);
• Implement and maintain state management patterns with Redux Toolkit for a growing multi-domain application;
• Integrate with backend REST APIs — consume Swagger-generated clients, handle authentication, error handling, and data transformation;
• Contribute to the C#/.NET backend when needed — implement or adjust API endpoints, business logic, or database queries for end-to-end feature delivery;
• Collaborate closely with the backend developer, QA engineer, designer, and PM/BA in an agile workflow (sprint planning, refinements, reviews);
• Participate in code reviews — both giving and receiving feedback — to maintain code quality and share knowledge;
• Write and maintain unit/integration tests using Jest, React Testing Library, and MSW;
• Ensure cross-browser compatibility, responsive design, and frontend performance (bundle size, rendering efficiency);
• Maintain code quality standards using ESLint, Prettier, and Type Script strict mode;
• Communicate clearly and proactively in a remote, distributed team setting — async written updates, sprint ceremonies, occasional stakeholder demos.

The product is a multi-tenant SaaS platform for offer serving, conversion tracking, and partner management in the affiliate and performance marketing industry. The platform serves three core personas:
Publishers, Advertisers, and Affiliate Networks, and covers modules including Offer Management, Conversion Tracking (click/postback attribution), Offer Wall & Display, Partner Platform, Marketplace, Reporting, and Tenant/User Management.