AI-Driven Backend Engineer (Node.js & C++) – Hybrid

IONOS Group; San Sebastián de los Reyes; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Hybrid work model

Flexible hours

Tech discounts

Job summary

IONOS Group is seeking an execution-driven backend engineer to transform architectural specs into robust Node.js and C++ solutions. You will optimize a hybrid system, leverage AI tools to accelerate development, and implement rigorous tests to ensure stability.

In this role, you will work across Linux environments, manage Docker-based builds, and collaborate with senior architects to push performance and quality in a fast-paced setting.

Qualifications

• Strong experience with Node.js development.
• Ability to read, understand, and debug C++ code.
• Experience working in Linux environments.
• Familiarity with build tools and containers (Docker, Make, CMake).

Responsibilities

• Develop backend components in Node.js and high-performance integrations with C++.
• Translate technical specifications into functional solutions.
• Use AI tools to accelerate development, validation, and code improvement.
• Apply test-driven approaches to ensure robustness and stability.
• Manage and optimize build environments (Docker, Make, CMake).
• Analyze system performance and identify bottlenecks in Node.js-C++ interactions.
• Refactor legacy code into clean, high-performance solutions.
• Collaborate with architecture roles to continuously improve the system.

Skills

Node.js

C++

Linux

AI-assisted tools

Tools

Docker

Make

CMake

Job description

IONOS Group is seeking an execution-driven backend engineer to transform architectural specs into robust Node.js and C++ solutions. You will optimize a hybrid system, leverage AI tools to accelerate development, and implement rigorous tests to ensure stability.

In this role, you will work across Linux environments, manage Docker-based builds, and collaborate with senior architects to push performance and quality in a fast-paced setting.