Air Liquide's Innovation and Development Division (IDD) propels innovation within the organization, particularly focusing on technologically advanced solutions across various sectors. Boasting a team of more than 3,000 employees from 70 nationalities at 60 international sites, Air Liquide remains at the forefront of innovation and digital transformation.

As a Data Engineer at Air Liquide, you will develop and optimize machine learning models and data-driven strategies to enhance manufacturing and Biogas operational performance. Ideal candidates should possess expertise in data transformation, software development, and experience within industrial operations. Key responsibilities include data collection, model development, stakeholder collaboration, and supporting digitalization initiatives.

Joining Air Liquide means contributing to a diverse and inclusive environment that values innovation and individual talent. This guide will walk you through the interview process, typical questions, and valuable tips as you prepare for your Data Engineer interview with Air Liquide.

Submitting Your Application

The first step is to submit a compelling application that reflects your technical skills and interest in joining Air Liquide as a Data Engineer. Whether you were contacted by an Air Liquide recruiter or have taken the initiative yourself, carefully review the job description and tailor your CV according to the prerequisites.

Tailoring your CV may include identifying specific keywords that the hiring manager might use to filter resumes and crafting a targeted cover letter. Furthermore, don’t forget to highlight relevant skills and mention your work experiences.

Recruiter/Hiring Manager Call Screening

If your CV happens to be among the shortlisted few, a recruiter from the Air Liquide Talent Acquisition Team will make contact and verify key details about your experience and skill level. Behavioral questions may also be a part of the screening process.

In some cases, the Air Liquide Data Engineer hiring manager stays present during the screening round to answer your queries about the role and the company itself. They may also indulge in surface-level technical and behavioral discussions.

The whole recruiter call should take about 30 minutes.

Technical Virtual Interview

Successfully navigating the recruiter round will present you with an invitation for the technical screening round. Technical screening for the Air Liquide Data Engineer role usually is conducted through virtual means, including video conference and screen sharing. Questions in this 1-hour long interview stage may revolve around Air Liquide’s data systems, ETL pipelines, and SQL queries.

In the case of data engineering roles, practical assignments regarding machine learning models, data transformation, and data visualization are incorporated. Apart from these, your proficiency against data automation principles, industrial/automation systems knowledge, and machine learning fundamentals may also be assessed during the round.

Depending on the seniority of the position, case studies and similar real-scenario problems may also be assigned.

Onsite Interview Rounds

Followed by a second recruiter call outlining the next stage, you’ll be invited to attend the onsite interview loop. Multiple interview rounds, varying with the role, will be conducted during your day at the Air Liquide office. Your technical prowess, including programming and data modeling capabilities, will be evaluated against the finalized candidates throughout these interviews.

If you were assigned take-home exercises, a presentation round may also await you during the onsite interview for the Data Engineer role at Air Liquide.

Quick Tips For Air Liquide Data Engineer Interviews - Should contain three tips for interviewing for this specific company based on interview experiences.

Example:

You should plan to brush up on any technical skills and try as many practice interview questions and mock interviews as possible. A few tips for acing your Air Liquide interview include:

• Understand Industrial Operations: As the role requires interaction with manufacturing and Biogas operations, familiarize yourself with industrial systems such as SCADA, HMI, and PLC.
• Be Well-Versed in Data Transformation Tools: Demonstrate a solid foundation in data transformation tools and techniques by practicing with relevant platforms such as SQL queries, cloud computing platforms like AWS, GCP, or Azure, and visualization tools like PowerBI.
• Communicate Clearly: Be prepared to explain your technical findings and methodologies succinctly to both technical and non-technical audiences. This includes writing clear and concise reports and presentations.

Typically, interviews at Air Liquide vary by role and team, but commonly Data Engineer interviews follow a fairly standardized process across these question topics.

• Select the top 3 departments with at least ten employees and rank them by the percentage of employees making over 100K. Given employees and departments tables, select the top 3 departments with at least ten employees and rank them according to the percentage of their employees making over 100K in salary. Return the percentage of employees making over 100K, department name, and the number of employees.

What is the average salary for a Data Engineer at Air Liquide?

FAQ for Data Engineer Position at Air Liquide

Q: What does the Innovation and Development Division (IDD) at Air Liquide focus on?
A: The IDD drives the innovation strategy for the Hubs and Operations and contributes to the Group's transformation. It is responsible for imagining, developing, and incubating new solutions, particularly those with high technological content, including digital and IT.

Q: What are the main responsibilities of a Data Engineer at Air Liquide?
A: Primary duties include collecting, cleaning, and analyzing data from manufacturing and Biogas operations, developing and adapting machine learning models, assisting the IT department with model deployment, and working with stakeholders to translate their needs into data analytics solutions.

Q: What qualifications and competencies are required for this position?
A: A bachelor's degree in data science, computer science, or a related field is required, along with 1-2 years of experience in IT, Automation, and Data transformation. Familiarity with programming languages (Python, Javascript), machine learning frameworks (TensorFlow, PyTorch), and cloud platforms (AWS, GCP, Azure) is also essential. Strong communication and problem-solving skills are critical for success.

Q: What kind of work environment can a Data Engineer expect at Air Liquide?
A: The role involves sitting for long periods, using computers and audio/visual equipment, and occasionally wearing PPE and other safety attire. The position is identified as "safety-sensitive" and is subject to random drug testing according to the current Drug and Alcohol Policy and/or state law.

Q: How does Air Liquide support diversity and inclusion?
A: Air Liquide is committed to building a diverse and inclusive workplace. They welcome applications from all qualified individuals regardless of background and believe that diversity fosters innovation and creates an engaging environment.

Exploring a career as a Data Engineer with Air Liquide means becoming a pivotal force in leveraging machine learning and data-driven approaches to enhance manufacturing and Biogas operations. Are you ready to contribute to innovative solutions in a dynamic, diverse workplace? Our Air Liquide Interview Guide on Interview Query provides exhaustive insights tailored for this role. Dive deep into a wealth of interview questions and strategies, elevate your readiness, and take the next confident step towards joining a company where your technical prowess will drive transformation and success.

Good luck with your interview!