FullStack Developper

Cryptonext Security; Paris; Sur place; EUR 50 000 - 70 000; Plein temps

Résumé du poste

A leading deeptech startup in Paris is looking for a Frontend Developer to design and develop React-based user interfaces for their post-quantum cryptography products. The role involves collaborating with product and backend teams to ensure a seamless user experience. Ideal candidates will have strong expertise in React, TypeScript, and modern UI libraries. This position offers a competitive salary and flexible remote work options.

Prestations

Flexible remote work options

Competitive salary

Stimulating work environment

Qualifications

• Strong expertise in React / Next.js and its ecosystem.
• Excellent knowledge of TypeScript and robust programming principles.
• Experience with modern UI libraries (Tailwind, or chadcn/ui).

Responsabilités

• Design and develop React-based user interfaces.
• Collaborate with teams to ensure an intuitive user experience.
• Optimize performance and ensure cross-browser compatibility.

Connaissances

Strong expertise in React / Next.js

Excellent knowledge of TypeScript

Experience with modern UI libraries

Experience integrating REST APIs

Good grasp of frontend performance optimization

Experience with frontend testing frameworks

Familiarity with Git, CI/CD pipelines, and DevOps

Description du poste

Who we are

CryptoNext Security is a deeptech startup specializing in post-quantum cryptography. Our solutions help businesses and institutions prepare for a future where quantum computers will challenge traditional data security. We work with leading clients in finance, defense, and telecommunications.

On a daily basis, you will

• Design and develop React-based user interfaces for our post quantum cryptography products.
• Collaborate with Product and Backend teams to ensure a smooth and intuitive user experience.
• Optimize performance and ensure cross-browser and cross-device compatibility.
• Integrate REST APIs to interact with our backend services.
• Participate in code reviews and apply best practices (unit testing, continuous integration, documentation).
• Contribute to frontend architecture improvements by suggesting technological upgrades and refactorings.
• Enable improvement of our products even if outside of your common scope
• Embrace our frontend team work principles: “Done over perfect” / we ship/deliver fast: KISS, DRY (don’t repeat yourself), SOLID

The skills you'll need

• Strong expertise in React / Next.js and its ecosystem (React Hooks, Context API).
• Excellent knowledge of TypeScript and robust programming principles.
• Experience with modern UI libraries (Tailwind, or chadcn/ui).
• Experience integrating REST APIs
• Good grasp of frontend performance optimization and related tools (Webpack, Vite, CoreWebVitals).
• Experience with frontend testing frameworks (Jest, React Testing Library, Cypress).
• Familiarity with Git, CI/CD pipelines, and DevOps for automated integration and deployment.

Bonus skills

• gRPC.
• Knowledge of secure coding practices and application security.
• Basic understanding of cryptography and cybersecurity.
• Experience in a startup or deeptech environment.

The team you'll be joining

You will be part of our R&D team, working closely with backend developers, the product team, and UX/UI designers. You will report to the and collaborate with other departments to build high-performance, user-friendly interfaces tailored to our clients’ needs.

Our recruitment process

1. Initial discussion with our HR team to explore your background and motivations.
2. Technical interview with a developer, including a coding test.
3. Meeting with a manager to ensure alignment with our company culture.
4. If successful, you’ll receive a final offer!

What’s in it for you at CryptoNext

• A stimulating work environment with cutting-edge technological challenges.
• A fast-growing startup with a team of passionate professionals.
• Flexible remote work options and an office in Paris.
• A competitive salary, aligned with our compensation philosophy.
• A deep dive into the exciting world of post-quantum cryptography and cybersecurity.

Ready to join the adventure? Apply now!