Fullstack developer in payments

Software Mind develops solutions that make an impact for companies around the globe. Tech giants & unicorns, transformative projects, emerging technologies and limitless opportunities – these are a few words that describe an average day for us. Building cross-functional engineering teams that take ownership and crave more means we’re always on the lookout for talented people who bring passion and creativity to every project.

• Build and ship production React and TypeScript features for risk analyst interfaces: transaction and merchant risk views, score explanations, alert queues, data-heavy tables, filters and charts
• Extend the C#/.NET endpoints behind your features (new fields, filters, endpoints) within API contracts owned by the senior developer
• Integrate the front end with platform APIs, handling loading, error, pagination and caching states cleanly
• Keep large-dataset UIs fast through virtualized tables, smart data fetching, memoization and regular profiling
• Use Claude Code or an equivalent agentic coding tool as your primary accelerator while owning the quality of every line merged
• Write unit, component, integration and end-to-end tests, and review and harden AI-generated code before it reaches production
• Respect the PCI boundary across the stack: masked and tokenized card data only, secure session and token handling
• Work closely with the client’s internal team: stand-ups, documented design decisions, clean handoffs, CI/CD and repo conventions

• 3–5 years of commercial software development, including at least 3 years of production React and TypeScript (hooks, state management, Vite or Next.js)
• Experience building data-heavy UIs: tables, grids and charts over large datasets (e.g. TanStack Table, AG Grid, Recharts, ECharts)
• Working proficiency in C#/.NET: ASP.NET Core Web API, EF Core or Dapper, and enough SQL to change endpoints safely
• REST API integration with typed clients and server-state libraries such as TanStack Query
• Daily, hands-on use of agentic AI coding tools (Claude Code, Cursor, Copilot Workspace, Codex or similar) – you’ll demo your workflow live
• Testing discipline: Jest or Vitest, React Testing Library, Playwright or Cypress, xUnit or NUnit
• Solid frontend fundamentals: modern CSS, accessibility (WCAG), browser performance and web security (XSS, CSP, token handling)
• Docker and Docker Compose, Git, CI/CD (Azure DevOps, GitHub Actions or similar)
• Будет плюсом: Payments, card processing, risk/fraud or financial services experience, ideally with PCI-scoped applications; Design systems and component libraries (MUI, Fluent UI) and Storybook; Advanced data visualization (D3, time-series and distribution charts) or UIs for LLM-backed features; Identity in SPAs: OAuth2/OIDC, MSAL / Microsoft Entra ID; Prior consulting or staff-augmentation experience embedded in a client team

• Flexible and remote cooperation options
• International projects with leading global clients
• Travels related to international projects
• Non-corporate atmosphere
• Access* to language classes
• Access* to knowledge-sharing initiatives
• Access* to private healthcare and life insurance
• Access* to multisport card