Software Solutions Developer - CAREL FRANCE à Lyon, France

MAKE THE DIFFERENCE! THINK CUSTOMER FIRST! EXPERIMENT! CARE! BE OPEN!

Do you want to make a difference? Our goal is to always put customers and people first! Our challenge is to experiment and innovate, being open to change and diversity. These are the pillars of the Carel Culture Code , the basis of our corporate culture and our platform for growth. If you can relate to these values or want to make them your own, join us and find out just how much we can achieve together!

We are world leaders in control solutions for air conditioning, refrigeration and heating, as well as systems for humidification and adiabatic cooling. Our products guarantee high performance, are energy efficient and environmentally sustainable.

Position:

CAREL France is the French commercial subsidiary of the CAREL Group, a global leader in control solutions for refrigeration, HVAC, and energy efficiency. We support our customers across French, Belgian, Luxembourg and Maghreb markets with local sales, technical expertise, training, and service, while leveraging the innovation and resources of an international organization.

We are looking for a Software Solutions Developer responsible for the migration, structuring, development, and validation of embedded applications running on CAREL programmable controllers, intended for the control of commercial refrigeration, HVAC, BMS/EMS, and energy management systems.

As an experienced software developer, the candidate is able to apply robust software engineering practices in an industrial environment, including modular architecture, object-oriented programming (OOP), Git, testing, documentation, APIs, and legacy code migration.

Key Activities:

• Analyze existing controller applications and define a clean migration strategy to recent CAREL platforms.
• Design a modular software architecture for IEC 61131-3 applications that are maintainable, testable, and scalable.
• Develop software in Structured Text (ST) while applying CAREL development principles.
• Structure code around clearly defined functions, classes, interfaces, or function blocks.
• Establish and enforce Git best practices, including version control, code reviews, traceability, and release management.
• Create automated tests, unit tests, audit tools, and non-regression test matrices.
• Contribute to the integration of HMI interfaces, web applications, REST APIs, communication systems, and supervisory platforms.
• Collaborate with refrigeration specialists, commissioning engineers, and business experts.

Requirements:

• A minimum of 3 to 5 years of experience in software development, industrial computing, automation, embedded systems, or software architecture.
• Proficiency in Structured Text (ST) or at least one object-oriented programming language such as C#, Java, C++, Python, or equivalent.
• Good understanding of software design principles, including modularity, abstraction, encapsulation, composition, interfaces, and the single responsibility principle.
• Knowledge of IEC 61131-3 languages, particularly FBD and Structured Text, to work on CAREL controller applications.
• Knowledge of Git and version control best practices.
• Ability to read, understand, refactor, and improve the reliability of legacy code.
• Strong commitment to software quality, including testing, readability, documentation, architecture, and maintainability.
• Ability to work with constrained, industrial, or embedded application systems.
• Excellent communication skills for interacting with internal teams, customers, technicians, and partners, understanding requirements, clarifying issues, and explaining technical decisions.
• Good written and spoken English skills in a technical environment, including documentation, supplier communications, reading manuals, tickets, and specifications.

Other information:

What we offer

• Work-life balance : remote working and flexitime
• On-boarding program and continuing training

MAKE THE DIFFERENCE…ANYWAY: this position isn’t right for you? Check out our other job opportunities:

ACT FOR THE PLANET - ACT FOR PEOPLE - ACT TO SHARE VALUE

At Carel we are actively committed to achieving our sustainability objectives, outlined in our “ Driven by the Future - Sustainability in Action ” plan, available for reference at: . Every day we take concrete actions to help combat climate change, identifying and developing products and services that increase energy efficiency and allow us to drastically reduce environmental impact.

Our organisation aims to ensure the establishment of transparent and responsible governance and to foster a fair and inclusive workplace where diversity is recognised as an essential value for the innovation we strive to bring. Carel is committed to equal employment opportunity and prohibits any form of discrimination. In line with these objectives and values, all applications received will be given due consideration and will be exclusively valued based on competences, experiences, motivation and values alignment.

This job post addresses both female and male candidates (see D.Lgs. n. 198/2006 & https://jobeax.com/link/L0q7ffxZTERuqK7Y and D.Lgs. 215-216/2003). Candidates are invited to read the privacy statement (see artt. 13 e 14 del Reg. EU 679/2016) at the following link:

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