Senior Software Engineer - Full Stack

Senior Software Engineer - Full Stack

Contentsquare

Barcelona, Paris or London

What you will do

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.

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. Collaboration with the Artificial Intelligence team to provide functional oriented API that will be integrated into our chatbot and agent.

What You’ll Need to Succeed

Product mindset

Understand the users' needs deeply and align engineering efforts with business goals. Make decisions based on customer value and focus on delivering features that truly solve problems. Ensures that development is not just about coding but also about creating a meaningful and impactful product.

Expertise in Full Stack Development

At least 4 years of professional experience with a solid foundation in software development.

Proficiency in component-based architectures using modern frameworks like Vue.js or React for the front-end, and extensive experience in Node.js, PostgreSQL, and AWS for the back-end and data layer.

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.

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.

Innovative Mindset

Strong interest in keeping up with the latest in web technologies, architecture patterns, and platform performance. You actively share learnings, promote tech excellence, and contribute to the team’s growth through knowledge-sharing and mentoring.

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.

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