Sales & Operations Planning (S&OP) Internship

Cailabs; Rennes; On-site; EUR 13,000 - 17,000; Full time

Benefits offered by this job

Meal vouchers

Job summary

Cailabs, Rennes-based innovator in photonics, offers a six-month internship in its Supply Chain team. You will join the S&OP function, work under the Supply Chain Manager, and participate in data consolidation, scenario analyses, and dashboard automation to support decision-making.

You will gain cross-functional exposure, learn planning challenges in a fast-growing tech environment, and help redesign S&OP materials with a stronger financial perspective.

Qualifications

• Currently pursuing a 5-year higher education degree (Master level) in engineering or business.
• Specialization in Supply Chain or Finance is preferred.

Responsibilities

• Update and consolidate S&OP forecasting and planning data.
• Prepare, improve, and automate analyses and dashboards for S&OP reviews.
• Analyze variances between forecasts and actual results.
• Contribute to S&OP review preparations.
• Support the continuous improvement of planning tools and processes.

Skills

SC/Finance Master

Data analysis & presentation

Interest in simulation & planning

Education

Master's degree in Supply Chain or related

Tools

Power BI

Power Automate

Job description

The company

Founded in 2013, Cailabs designs, manufactures, and develops innovative photonic solutions for the space, industry, telecommunications, and defense sectors. A global specialist in laser shaping, the company has accelerated its growth in the space field with turnkey optical ground stations that integrate atmospheric turbulence compensation technology. This makes it one of the first companies to harness very high data rates enabled by optics in a commercial ground station.

Cailabs currently has more than 200 employees, including 41PhDs. With 29 patent families filed, the company is one of the most innovative companies in France. It is headquartered in Rennes, with offices in Paris and Washington (USA).

Post description

You will join the Supply Chain team, reporting to the Supply Chain Manager.

As part of the team, you will contribute to managing the S&OP (Sales & Operations Planning) process, a key driver for coordination across the company’s various departments. You will participate in consolidating data and preparing scenarios and analyses to support decision-making. You will also contribute to improving and automating the process and related tools.

This internship will give you a cross-functional view of the company and a strong understanding of planning challenges within an innovative technology environment.

Your responsibilities:

• Update and consolidate S&OP forecasting and planning data.
• Prepare, improve, and automate the analyses and dashboards required for S&OP reviews.
• Analyze variances between forecasts and actual results.
• Contribute to the preparation of S&OP reviews.
• Support the continuous improvement of planning tools and processes.

What you will develop:

• A comprehensive understanding of supply chain and planning processes.
• Skills in data analysis and performance management.
• Hands-on experience of how a fast-growing industrial company operates.

Your objective:

Your main objective will be to redesign and improve the S&OP review materials to meet evolving needs, particularly by integrating a stronger financial perspective. You will also help make updates and preliminary analyses more efficient by automating data processing and formatting, as well as improving the associated tools.

This six-month internship is available during the first half of 2027.

Profile required

Key skills:

• Currently completing a 5-year higher education degree (Master’s level), such as an engineering or business school degree, a specialised Master’s degree, or a Master 2, with a specialisation in Supply Chain or Finance.
• Knowledge of data analysis and data presentation.
• An interest in simulation and planning topics.

Nice to have:

• Knowledge of Power BI and Power Automate.
• Initial experience in dashboard development.
• Thoroughness, autonomy, a proactive mindset, and strong interpersonal skills.

Working environment:

• An innovative, fast-growing company.
• A young and dynamic team.
• 35-hour working week, Monday to Friday.

By joining Cailabs, you will find:

• A dynamic team of engineers and PhDs who share your desire to apply their expertise to stimulating technical challenges.
• A collaborative environment where ideas are shared and intellectual curiosity is encouraged.
• A company at the forefront of technology, working from prototype development through to industrialization.

And also:

• Opportunities to connect and enjoy time together through our annual seminar, team meals, games, sports activities, and more.
• A modern and pleasant working environment designed to encourage collaboration.
• Meal vouchers.

Joining Cailabs also means benefiting from an environment designed to support you in developing new skills throughout your internship