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Salary
≈ $31k – $61k per year (Estimated)
Location
Hybrid (Valbonne, France)
Seniority
Junior · 2+ years exp
Employment
Contractor

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 21, 2026. ALTEN scores B on the Alion truth index.

Overview
Company
Impact
Profile match
ALTEN is a French engineering and technology consultancy founded in 1988 that supplies project engineers to companies developing complex products and systems. Its consultants work inside client organisations across automotive, aerospace, defence, rail, energy, telecommunications, life sciences and finance, covering embedded software, mechanical and electrical design, simulation, testing, certification and information systems. Listed on Euronext Paris and headquartered in Boulogne-Billancourt, the group employs tens of thousands of engineers across more than thirty countries and has grown through a long sequence of acquisitions of specialist engineering firms.

C++ Developer - ALTEN

About ALTEN

ALTEN is the European leader in high-tech engineering and IT consulting, empowering global industries for over 30 years. With 52,000 experts across 30+ countries, we drive innovation in aerospace, automotive, finance, energy, defense, healthcare, and telecommunications.

Join us to work in a fast-paced, startup-like environment where your C++ expertise will shape cutting-edge solutions for international clients.

Your Role

As a C++ Developer at ALTEN, you will design, develop, and optimize high-performance software solutions in collaboration with cross-functional Agile teams. Your work will directly impact projects for industry-leading clients.

Key Responsibilities

Requirements & Design

Analyze technical specifications to define software requirements.

Design scalable and efficient C++ architectures and conduct feasibility studies.

Propose and validate technical solutions with stakeholders.

Development

Develop high-quality C++ applications following industry best practices.

Optimize code for performance, memory management, and thread safety.

Model, design, and implement databases and backend systems.

Testing & Maintenance

Write and execute unit, integration, and performance tests (e.g., GoogleTest, JMeter).

Debug and refine existing C++ systems in collaboration with product teams.

Ensure code reliability, security, and maintainability.

Documentation

Produce clear technical documentation for internal and client use.

Your Profile

Mandatory :

Relocation to the South-East of France

Required Qualifications

Education: Master’s degree in Computer Science, Software Engineering, or related field.

Experience: Minimum 2+ years of professional C++ development (internships count for junior roles).

Technical Skills:

Expertise in C++ (modern C++11/14/17/20, STL, templates, multithreading).

Strong knowledge of OOP, design patterns, and data structures.

Experience with Agile/Scrum methodologies.

Language: Fluent English (written and spoken).

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