Senior Backend Engineer - Scalable Secure PHP/NodeJS Hybrid

Odaseva; Paris; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

Odaseva in Paris is seeking a Senior Development Engineer to maintain and enhance our critical backend systems. You will translate business needs into technical solutions and collaborate with Product Managers and the Infrastructure team to ensure robust, scalable, and high-performing applications.

You will design, develop, and maintain high-performance PHP/NodeJS components, with Go/Python modules, mentor junior developers, and drive code quality through reviews and best practices in a dynamic,

Qualifications

• Master's degree in Computer Science, Engineering or related field.
• 7+ years as backend developer with a focus on PHP, Go, NodeJS, or Java.
• Proven track record delivering complex projects and improving product performance.
• Deep expertise in non-framework development and OO design.
• Ability to use AI tools (Claude) across development phases.
• Familiarity with cloud platforms and containerization (AWS/Azure, Docker).
• Excellent problem-solving, communication, and collaboration skills.

Responsibilities

• Design, develop, and maintain highly performant, scalable, and secure PHP/NodeJS applications (+ other modules in Go/python) for our core backend engine
• Collaborate directly with Product Managers to understand requirements, define technical specifications, and deliver solutions that align with product goals.
• Work closely with the Infrastructure team to optimize application performance, troubleshoot issues, and ensure seamless deployment and operation.
• Lead by example in writing clean, well-documented, and testable code.
• Mentor and guide junior developers, fostering a culture of technical excellence and continuous improvement.
• Participate in code reviews to maintain code quality and ensure adherence to best practices.
• Identify and implement opportunities for system optimization, refactoring, and technical debt reduction.
• Stay current with emerging PHP/NodeJS trends and technologies, recommending and implementing relevant advancements.

Skills

Backend development

OO programming

Code debugging

Technical leadership

Education

Master's degree in Computer Science or Engineering

Tools

AWS

Azure

Docker

Job description

Odaseva in Paris is seeking a Senior Development Engineer to maintain and enhance our critical backend systems. You will translate business needs into technical solutions and collaborate with Product Managers and the Infrastructure team to ensure robust, scalable, and high-performing applications.

You will design, develop, and maintain high-performance PHP/NodeJS components, with Go/Python modules, mentor junior developers, and drive code quality through reviews and best practices in a dynamic,