Senior Software Engineer

About Passbolt

Passbolt is an innovative cybersecurity product company that is growing quickly. Our organization is remote-first with its headquarters located in Luxembourg (Europe). We are the team behind Passbolt, the collaborative credential management platform for modern teams used by over 40,000 organizations in 50+ countries. 

You will join a growing and vibrant team committed to leverage the power of open source and a state-of-the-art security architecture to challenge the status quo in the cybersecurity industry. Passbolt is and always will be an engineering company, while scaling international sales and marketing to support global operations and customer success. We're looking for versatile self-motivated enthusiasts with a knack for commercial open source software, ethics and privacy, who can think out of the box and find impactful solutions to challenges.

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Description

We are seeking a Senior Software Engineer to join our Website Team to support the growing complexity of our public-facing web presence, including the main marketing website, the documentation portal, blog, and other interactive tools. Your mission will be to develop high-performing, secure, and SEO-optimized web applications using modern front-end technologies.

As part of the Website Team, you'll be responsible for building and maintaining user-friendly, accessible, and blazing-fast websites using React and You'll work with Headless CMS solutions, caching layers (e.g. CDN, ISR, SSR), and RESTful APIs to provide dynamic and localized content experiences. Your efforts will directly impact user acquisition, product education, and community engagement.

You'll also help define best practices for frontend architecture and performance optimization, contribute to SEO and analytics strategies, and collaborate closely with design, marketing, and product teams.

Technologies

• Languages: JavaScript, TypeScript
• Frameworks: React,
• Styling: CSS, CSS preprocessor
• CMS / CRM / ETL: Ghost / Strapi / Hubspot / Google Functions
• Caching & Deployment: Vercel, Cloudflare, ISR, SSR, SWR
• Payment systems / ERP: Chargebee, Stripe, Odoo
• Analytics: Google Analytics, Matomo
• Testing: Jest, Selenium
• Version Control & CI/CD: Git, Gitlab, Docker
• Development Methodologies: Agile Scrum

Main responsibilities

Development & Testing 

• Develop new components and pages using and modern frontend best practices.
• Integrate headless CMS platforms to support marketing and product content workflows.
• Implement caching strategies (SSR, ISR, SWR) and optimize performance across pages.
• Conduct code reviews, write unit and E2E tests to ensure performance, accessibility, and correctness.
• Continuously monitor and improve KPI scores (SEO, performance, accessibility)
• Support responsive and localized experiences across devices and regions.

Analyze & documentation 

• Translate marketing, content, and product requests into technical deliverables.
• Assist in the implementation of A/B testing, analytics events, and conversion tracking.
• Participate in cross-functional planning with designers, marketers, and product managers.
• Contribute to internal documentation for code and deployment pipelines.

Deployment and reliability

• Collaborate closely with SRE to share ownership of the CI/CD pipeline and ensure smooth production deployments with minimal downtime.
• Collaborate with the SRE and security teams to ensure the website stack is compliant and resilient.
• Monitor performance, error logs, and user behavior to proactively detect and fix issues.

Management & collaboration 

• Manage individual project priorities, deadlines, and deliverables to maintain an efficient workflow and contribute to team objectives.
• Collaborate with and coach your co-workers and help them achieve their goals.

Data Privacy & Security

• Ensure each request for change includes a risk analysis that identifies and proposes mitigations for newly introduced security issues or risks.
• Follow secure coding/design practices to ensure all components adhere to the highest security standards. ​
• Monitor project dependencies for vulnerabilities and assist the security team in analyzing their impact.
• Patch project dependencies' vulnerabilities and ensure these updates do not introduce regressions.
• Ensure that data handled by the product development team complies with GDPR and other data protection regulations.
• Collaborate with the security and senior management teams to maintain up-to-date company policies and risk registers.
• Assist the security team in enforcing least privilege access and ensure proper segregation of roles and responsibilities.
• Participate in security exercises and help refine processes and crisis management procedures.

Skills required / qualifications

Technical Skills

• 3+ years experience in front-end development with React and JavaScript/TypeScript.
• Strong proficiency with and server-side rendering concepts.
• Experience integrating and working with headless CMS solutions.
• Familiar with caching strategies: CDN, ISR, SSR, SWR, pre-rendering.
• Proficient with modern styling techniques (CSS Modules, SCSS, Tailwind).
• Familiar with Git, CI/CD workflows, and agile environments.
• Good understanding of web accessibility (WCAG), SEO, and performance optimization.

Considered a plus:

• Experience building browser extensions, UWP or mobile applications.
• Experience with end to end testing framework: WebdriverIO, Cypress, Selenium.
• Experience working with design systems and frameworks (example: StoryBook).
• Familiarity with UML documentation and a willingness to use it.
• Experience maintaining a long lived-project.
• Experience contributing to an open source project.

Soft Skills

• Fluent in English, both verbal and written and preferably one other language.
• Strong analytical skills and a simple solution-oriented mindset.
• Ability to balance technical excellence with business priorities and strategic goals.
• Comfortable working in full autonomy while collaborating effectively within a team.
• Receptive to feedback and able to collaborate effectively in a team setting.
• Inspired by cybersecurity or privacy related issues. You believe in an ethical web. You understand what open source means. You live on the internet.

Considered a plus:

• Experience collaborating with remote teams in an asynchronous workflow.
• Experience writing technical blog posts or sharing knowledge through articles or talks.

Benefits of working at Passbolt

We put a lot of effort into creating a workplace where everyone has room to learn, have fun, evolve and become the best version of themselves.

Here are some benefits, provided by default:

• Work from anywhere, or from our headquarter located in the Grand Duchy of Luxembourg. 
• Work/life balance: to keep the flow going, it's important to take regular breaks and disconnect. We provide 26 days of paid holidays / year.
• Equity for everyone. We are all in the same boat, we win together.
• When you grow, we grow: we invest in your professional as well as personal growth, through paid trainings of all types.
• In tune with yourself: Passbolt is built on strong values which we stand for: transparency, openness, privacy, people-first. Read more about what we believe in here.