React.js+ .Net Developer
Requirements
- 3+ years of professional experience with React in production web applications;
- Solid proficiency in TypeScript — 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
- RESTful API integration — consuming APIs, handling authentication, error states, loading/pagination;
- Experience with form handling and validation in React (any library — React Hook Form, Formik, etc.);
- 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 (PostgreSQL, 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.
Nice-to-Have
- 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).
Responsibilities
- Develop and maintain the React/TypeScript 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 TypeScript strict mode;
- Communicate clearly and proactively in a remote, distributed team setting — async written updates, sprint ceremonies, occasional stakeholder demos.
About the ProjectThe 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.