Senior Software Developer (React + NestJS)

Cdq Ag

5d•Remote

About The Position

At CDQ, we offer a flexible work environment and the opportunity to contribute to the development of Cloud Apps, a web platform that helps users interact with CDQ APIs and products through a modern interface. Our engineering setup includes a React application built with TypeScript and Vite, a shared NestJS backend, and automated testing across multiple levels. You will be part of a small, collaborative team of three frontend engineers, which means a high degree of flexibility, ownership, and direct influence on the entire web application - from architecture and technical decisions to code quality, user experience and the evolution of our web app.

Requirements

Strong React & TypeScript expertise, including frontend architecture, component design, maintainability, and clean coding practices.
Experience building production-grade SPA applications, including state management, API integration, routing, authentication flows, error handling, and accessibility.
Familiarity with modern frontend tooling and workflows, such as Vite, ESLint, Prettier.
Hands-on experience with testing at multiple levels, using tools like Vitest, Jest, Testing Library, and Playwright.
Good knowledge of HTML, CSS/SCSS, and responsive, accessible UI development.
Practical experience with Node.js and NestJS, sufficient for collaboration and occasional backend implementation.
Experience leveraging AI-powered developer tools (e.g. GitHub Copilot or similar models) for code generation, refactoring, understanding context, and improving overall development productivity.
Strong sense of UI ownership and responsibility for how the product looks, feels, and behaves from the user's perspective.
Understanding of common UX patterns in modern SaaS applications, including navigation, data-heavy views, form flows, empty/loading/error states.
Ability to think end-to-end across user journeys, not just individual components.
Fluent English communication skills

Nice To Haves

experience with Docker, MongoDB, Kafka, CI/CD pipelines (e.g. GitHub Actions).

Responsibilities

Develop and evolve a modern React web application, with a strong focus on clean architecture, scalability, and maintainability.
Implement and deliver product features end-to-end, including frontend views, business logic, and integrations with backend APIs.
Refactor and improve existing codebases, migrating legacy logic into well-structured, reusable frontend solutions.
Collaborate within a small, high-impact team on technical decisions, solution design, and continuous product improvement.
Contribute to shared UI components, design system adoption, and engineering standards, ensuring a consistent, intuitive experience across the application.
Support backend development in NestJS when needed, enabling smooth frontend-backend collaboration.
Take ownership of UI quality and user experience, proactively identifying and resolving usability issues and inconsistencies.