Developpeur Front End à Grande-Bretagne

Contentsquare is the all-in-one experience intelligence platform designed to be easily used by anyone who cares about digital journeys. With our flexible and scalable platform, organizations quickly get a deep understanding of their customers’ whole online journey.

We are a global leader in the experience analytics space, having secured $1.4 billion in funding and expanded to 15 offices worldwide. We’re here to stay—and we’re looking for team members that can help us further our growth.

Our aim is to create an inclusive workplace where everyone learns and succeeds. Contentsquare has built a community of individuals who are daring, understanding, and deliberate. We invite you to join us in making the complex simpler—for our customers, their customers, and each other.

About the Role

As a Staff Software Engineer – Full Stack, you’ll be part of the Session analysis team, a cornerstone of Contentsquare’s platform. Session analysis enables teams to visually reconstruct user sessions and understand not just what users do, but why. It powers key use cases across product, design, support, and engineering—helping companies identify friction, reproduce bugs, and optimize user experience.

You’ll join a cross-functional squad of 8 engineers, including front-end, full-stack, and data profiles, working closely with product managers and designers. In this role, you’ll help scale a system that processes millions of user sessions per day, combining high-throughput event ingestion, real-time processing, and smart replay rendering—all while maintaining strict privacy and compliance standards.

Tech Stack

Frontend : Vue 3, React, TypeScript, Micro-frontends

Backend : Node.js 20, PostgreSQL, ClickHouse

DevOps / CI/CD : AWS, ArgoCD, GitHub Actions

Monitoring / Observability : Custom observability stack integrated with performance SLOs

What you will do

1. Technical Leadership
   Drive key technical initiatives and contribute to company objectives by taking ownership of major and complex topics within our products. Lead the architecture, development, and optimization of high-performance web applications, with a strong focus on scalability, observability, and runtime performance.
2. Engineering and Development
   Lead the technical design and delivery of robust front-end modules using Vue.js, React, and TypeScript, leveraging a micro-frontend architecture for scalable and modular application development. Develop and manage back-end components and APIs using Node.js, and push our microservices architecture forward to support large-scale data and low-latency needs.
3. Cross-Team Collaboration
   Work closely with agile, cross-functional teams, including engineers, product managers, designers. Provide focused support across units, driving improvements across the entire application tech stack, both front-end and back-end with a strong product-performance mindset.
4. Mentorship and Team Enablement
   Serve as a thought partner to engineering and product leadership. Mentor engineers through pair programming, code reviews, and day-to-day coaching. Foster a culture of technical excellence, knowledge sharing, and continuous improvement, helping the team adopt best practices and stay aligned on engineering goals.
5. Strategic Contributions
   Play a central role in long-term strategic planning, including system architecture, modularization, and cross-product technical alignment around transversal Initiatives. Actively contribute to internal tech circles, architectural reviews, and sharing sessions to spread insights and elevate our collective engineering standards. Contribute to the evolution of performance SLOs through improved observability and resilient system design.

What You’ll Need to Succeed

1. Expertise in Full Stack Development
   At least 10 years of professional experience with a solid foundation in software development. Proficiency in component-based architectures using modern frameworks like Vue.js, React, or Angular for the front-end, and extensive experience in Node.js, PostgreSQL, and AWS for the back-end and data layer.
2. Strong Front-End & Back-End Fundamentals
   Deep understanding of JavaScript, TypeScript, CSS, and HTML. Hands-on experience with single-page applications (SPA), cloud-native systems, microservices architecture, and performance optimization—particularly around key SLOs. Familiarity with automated testing practices and continuous delivery pipelines.
3. Leadership and Vision
   Demonstrated ability to lead engineering projects, make critical architectural decisions, and think holistically about product and platform. Ability to inspire others, drive a shared technical vision, and ensure the implementation of engineering best practices across the team.
4. Collaborative Spirit
   Excellent communication skills, with experience working cross-functionally in agile, mid-sized teams. You value transparency, respectful feedback, and a collaborative culture—and you actively help build it.

Nice to Have

• Exposure to Scala, Go, or Python in production environments.
• Experience with ClickHouse or other columnar databases for high-volume analytics.
• Contributions to open-source projects, tech talks, or engineering blogs.

What You’ll Love About This Role

• Tackle scalable, privacy-focused engineering challenges on a product used daily by global teams.
• Lead cross-functional initiatives and advocate for high standards across engineering.
• Own architecture on a high-impact product, with direct ties to product and design.

Why you should join Contentsquare

We invest in our people through career development, mentorship, social events, philanthropic activities, and competitive benefits. We are always assessing the perks we offer to ensure we’re aligned with the employees' needs.

Here are a few we want to highlight:

• Virtual onboarding, Hackathon, and various opportunities to interact with your team and global colleagues both on and offsite each year
• Work flexibility: hybrid and remote work policies
• Generous paid time-off policy (every location is different)
• Immediate eligibility for birthing and non-birthing parental leave
• Wellbeing and Home Office allowances
• A Culture Crew in every country we’re based in to coordinate regular activities for employees to get to know each other and bond outside of work
• Every full-time employee receives stock options, allowing them to share in the company’s success
• We have multiple Employee Resource Groups, that offer a safe space for individuals who share common identities, life experiences, or allyship to connect, support one another, and passionately advocate for the issues close to their hearts
• And more benefits tailored to each country

Contentsquare is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected veteran status, age, or any other characteristic protected by law.

Your personal data is used by Contentsquare for recruitment purposes only. Read our Job Candidate Privacy Notice to find out more about data protection at Contentsquare and your rights. You can exercise your rights by using our dedicated Data Subject Rights Portal here.

Your personal data will be securely stored in our hosting provider’s data center in Oregon (US west). We have implemented appropriate transfer mechanisms under applicable data protection laws.