Senior Software Engineer - Web

About the role

The Sharing & Vault team is responsible for how people securely store and share credentials. The team works on sensitive product surfaces at the heart of credential security, balancing strong zero-knowledge principles with simple, reliable experiences for users and admins.

As a senior web engineer, you will shape intuitive, trustworthy interfaces and the client-side foundations behind them, turning security requirements into polished product experiences that are scalable, accessible, and easy to use. You will own complex features from design to production, mentor teammates, and help shape the team's technical direction.

Location-Specific Information:

You will be based in Paris, with English as your working language. At Dashlane, we embrace a hybrid culture that combines the best of both worlds: the creativity and energy of in-person collaboration with the flexibility of remote work. Our model is designed to strengthen team connections while supporting individual productivity and work-life balance. To maximize collaboration, we come together in the office on Mondays, Tuesdays, and Thursdays, while Wednesdays and Fridays offer more flexibility for focused work.

Our stack:

• Frontend: TypeScript, React, RxJS

• Delivery and monitoring: GitLab, GitLab CI, ELK, Datadog

• Tooling: Webpack, Vite, pnpm, Vitest, Puppeteer

• Collaboration: Confluence, Zoom, Slack

• AI: Claude Code

In your role, you will:

• Take shared ownership of the team's product and technical choices, bringing creative ideas that make secure sharing and storage simpler for millions of users.

• Collaborate with Product and Design to shape features from early discovery through delivery, to find the simplest, most impactful solutions for our users.

• Partner with Security to write threat models and embed security considerations throughout design and implementation.

• Implement projects end-to-end: write clean code, easy to maintain and understand, implement tests, and manage deployment.

• Lean on AI coding platforms like Claude Code to streamline the SDLC, driving development velocity while maintaining high code quality.

• Lead the technical design of complex features, review and guide your teammates' work, and partner with Staff engineers on cross-team topics and the evolution of our web foundations.

• Learn every day, and share your knowledge with your co-workers.

Requirements:

• 7+ years of experience in software development including 5+ years building web applications.

• Strong expertise in TypeScript, experience with React and modern state management.

• Experience working in a product development team with agile practices.

• Familiarity with modern frontend tooling and delivery including monorepos, bundlers, CI/CD pipelines, end-to-end tests and monitoring in production.

• A strong focus on quality and an interest in client-side security topics (XSS, isolation, handling sensitive data in the browser).

• Hands-on experience with AI engineering patterns, using GenAI tools in day-to-day development.

• Fluent in English.