Full-Stack Engineer: Build Scalable, Secure Web Apps

SN Horizon; Paris; On-site; EUR 60,000 - 90,000; Full time

Job summary

SN Horizon is seeking a versatile software engineer to build and maintain scalable web applications using React, Node.js, Python, and related technologies to deliver fast, reliable user experiences across platforms.

You will collaborate with product managers, UX/UI designers, and data engineers, architect robust backend systems, ensure security and performance, and contribute to documentation and knowledge sharing as part of an agile team.

Qualifications

• Strong knowledge of frontend and backend development (React, Angular, Vue.js; Node.js, Django, Flask, Spring Boot).
• Experience with cloud technologies (AWS, Azure, GCP).
• Familiarity with SQL and NoSQL databases and API development.

Responsibilities

• Develop and maintain scalable web applications with React, Node.js, Python for high performance.
• Architect and implement robust backend systems with databases, APIs, and cloud services.
• Collaborate with product managers, designers, and data engineers to deliver solutions.
• Ensure security, performance, and maintainability with best practices and IaC.
• Profile and optimize system performance under varying workloads.
• Evaluate new tools and architectures to improve the product stack.
• Contribute to technical documentation and knowledge sharing through peer reviews and talks.

Skills

Frontend frameworks

Backend frameworks

Cloud technologies

Databases

APIs

Job description

SN Horizon is seeking a versatile software engineer to build and maintain scalable web applications using React, Node.js, Python, and related technologies to deliver fast, reliable user experiences across platforms.

You will collaborate with product managers, UX/UI designers, and data engineers, architect robust backend systems, ensure security and performance, and contribute to documentation and knowledge sharing as part of an agile team.