Staff Engineer - Web Platform (Typecript/React)

We are seeking a Staff Engineer to elevate the reliability, performance, and quality-by-design of Dashlane’s Web Platform. This is a high-impact technical leadership role, shaping long-term architectural direction while enabling teams to deliver faster and more confidently at scale.
As a Staff Engineer, you will act as a trusted advisor and technical multiplier, designing platform-level quality and observability capabilities, influencing engineering decisions across teams, and embedding a security-first, reliability-driven culture. You will combine deep expertise in quality and testing with broad web and platform engineering knowledge to drive sustainable, measurable improvements to our engineering standards and user experience.
About our stack:

- Programming language: Typescript, Javascript, React, RxJS

- Quality: Sonarqube, ESLint

- Testing: Jest, Karma, WebdriverIO, Cucumber

- Build: Webpack

- Versioning: Gitlab

- Monitoring: ELK, Tableau
At Dashlane you will:

- Drive the long-term technical vision for Web Platform quality and reliability, shaping architecture with a strong focus on performance, testability, security, and quality-by-design.

- Design and enable platform-level quality capabilities (testing frameworks, observability standards, CI/CD guardrails, and tooling) that empower multiple teams to ship faster, safer, and with higher confidence.

- Act as a technical leader and multiplier, identifying systemic gaps, driving high-leverage improvements, and ensuring measurable outcomes in Web Platform reliability, stability, and engineering standards.

- Define, implement, and evolve SLIs and SLOs from a web perspective, ensuring reliability and performance targets are aligned with user experience and business priorities.

- Raise the engineering bar across teams by coaching, mentoring, and influencing engineers, while continuously learning and sharing knowledge to foster a culture of technical curiosity, craftsmanship, security, and engineering excellence.

- Partner closely with Product Managers, Engineering Managers, and cross-functional teams, influencing prioritization and decision-making by clearly articulating trade-offs between engineering excellence and business needs.

- Lead and optimize end-to-end testing strategies, improving test effectiveness, execution speed, and confidence in production releases at scale.

- 6+ years of experience in software development

- 3+ years of experience with JavaScript or TypeScript development

- 3+ years of experience with frameworks such as React, AngularJS or VueJS

- 4+ years of experience working in a product-focused company

- Ability to work collaboratively in a team

- Fluency in English

- Prior experience defining and implementing SLIs and SLOs from web perspective, with a focus on performance, reliability, and user experience

- Strong knowledge of end-to-end testing best practices and test framework optimization to improve quality and execution speed

- Willingness to develop a T-shaped skill set, combining deep expertise in quality and observability with broad platform and web engineering knowledge

- Experience with web extensions and their specific monitoring challenges