Senior Backend Engineer - Build Scalable, Secure APIs

proton tehnologies; Paris; Sur place; EUR 90 000 - 130 000; Plein temps

Avantages offerts par ce poste

Office First

Technology

Food

Transport

Stock Options

Flexible Working

Learning and Development

Employee Benefits

Résumé du poste

Proton Technologies AG is seeking a Backend Engineer to build and scale backend services for 100M+ users. You will work with product and API teams to design robust APIs and data models, emphasizing performance, security, and reliability.

The role requires leadership experience, strong SQL (MySQL) skills, caching knowledge, and proficiency with modern backend tools (Docker, Kubernetes). You will contribute to a privacy-focused, globally distributed platform.

Qualifications

• Proven experience with back-end development.
• Expertise in building scalable, high-performance solutions.
• Proficiency with profiling techniques and performance optimization tools.
• Experience leading a team initiative from discovery to production.
• Strong understanding of SQL (MySQL preferred) and data modeling best practices.
• Familiarity with Redis or other caching technologies for performance optimization.
• Knowledge of security best practices and experience implementing secure software solutions.
• In-depth understanding of HTTP/REST APIs and their consumption.
• Solid grasp of cryptographic concepts including key exchange and encryption types.

Responsabilités

• Develop Proton's vital backend services serving 100M+ users.
• Collaborate with Product, Design, APIs and teams to ensure robust APIs.
• Lead ownership of significant system components and architectures.
• Ensure security, performance, and reliability of services.

Connaissances

Backend development

SQL (MySQL)

HTTP/REST

Data modeling

Redis/Caching

Security best practices

Cryptography basics

Team leadership

Profiling and performance

OpenAPI/API docs

Outils

Docker

Kubernetes

Grafana/OpenTelemetry

Python

Rust

Description du poste

Proton Technologies AG is seeking a Backend Engineer to build and scale backend services for 100M+ users. You will work with product and API teams to design robust APIs and data models, emphasizing performance, security, and reliability.

The role requires leadership experience, strong SQL (MySQL) skills, caching knowledge, and proficiency with modern backend tools (Docker, Kubernetes). You will contribute to a privacy-focused, globally distributed platform.