Staff Software Engineer – Full Stack

Medium; Paris; Hybride; EUR 60 000 - 110 000; Plein temps

Résumé du poste

Join a forward-thinking company as a Staff Software Engineer – Full Stack and be part of a dynamic team that drives impactful solutions. This role involves scaling a platform that processes millions of user sessions daily, focusing on high-performance web applications and innovative architecture. You will collaborate with cross-functional teams, lead technical initiatives, and mentor fellow engineers. If you are passionate about creating inclusive digital experiences and thrive in a collaborative environment, this opportunity is for you. Embrace the challenge of tackling scalable engineering problems while contributing to a culture of excellence and continuous learning.

Prestations

Virtual onboarding

Hackathon opportunities

Work flexibility

Generous paid time-off policy

Parental leave

Wellbeing allowances

Stock options

Employee Resource Groups

Social events

Philanthropic activities

Qualifications

• At least 10 years of experience in software development with a focus on full stack.
• Proficient in modern frameworks and cloud-native systems.

Responsabilités

• Lead technical design and delivery of front-end modules using Vue.js and React.
• Drive key technical initiatives and mentor engineers for continuous improvement.

Connaissances

Full Stack Development

JavaScript

TypeScript

CSS

HTML

Node.js

PostgreSQL

AWS

Microservices Architecture

Performance Optimization

Formation

Bachelor's Degree in Computer Science

Master's Degree in Software Engineering

Outils

Vue.js

React

GitHub Actions

ClickHouse

ArgoCD

Description du poste

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, with a growing presence across 15 offices worldwide. We’re here to stay—and we’re looking for team members who are excited to drive impact and help us scale even further.

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.