Middle Frontend Developer (React)

StairwaySoft is an Israeli-Ukrainian engineering provider of custom software solutions for SMBs and startups. We are looking for a Middle Frontend Developer to join a team building a compliance and business verification platform for financial institutions and fintech companies. The product helps regulated businesses verify companies, process business data, and automate compliance workflows using real-time data and AI-driven automation. The platform operates in a security-sensitive environment where reliability, performance, and data quality are critical. Responsibilities: Design and develop modern, responsive, and user-friendly web applications Build and maintain customer-facing features using React and Next.js Develop reusable and scalable UI components using TypeScript and Tailwind CSS Integrate frontend applications with REST APIs and backend services Work with complex data flows and business logic in a compliance-focused product Optimize application performance, responsiveness, and reliability Ensure cross-browser and cross-device compatibility Write clean, maintainable, and well-tested code Participate in technical discussions and contribute to frontend architecture decisions Collaborate closely with backend developers, product managers, designers, and other stakeholders Monitor features in production and improve them based on user feedback and real-world usage Requirements: 3+ years of commercial frontend development experience Strong experience with React.js Strong knowledge of TypeScript Experience with Next.js Good knowledge of HTML, CSS, and modern JavaScript Experience with Tailwind CSS Experience integrating REST APIs Understanding of frontend architecture, reusable components, and state management Experience working with Git and modern development workflows Good understanding of web performance, responsive design, and browser compatibility Experience working with CI/CD and cloud-based environments is a plus Strong product mindset and ability to understand the business problem behind a technical task Upper-Intermediate English proficiency Would be a strong advantage: Experience with fintech, compliance, KYC/KYB, RegTech, or other security-sensitive products Experience working with data-intensive applications Experience with testing frameworks such as Jest, React Testing Library, or Playwright Experience with AWS, GCP, or Azure Experience working in distributed or international teams