29d ago
29d ago
Job description
Your mission
As part of the Operations & Maintenance Team, your main mission will be to contribute to the operation of our testing center. You will ensure the smooth running of the site, maintain its equipment and contribute to its development in preparation for the next testing phase of our next-generation prototype.
Your main responsibilities will include:
- Managing, monitoring and recording data generated by ongoing tests.
- Contributing to various site development projects, including planning, procurement, assembly and commissioning of new equipment, particularly piping systems, sensors, structures and software.
- Maintaining Balance of Plant (BOP) equipment and contributing to the improvement of the existing CMMS.
- Participating in the activities required to keep the site - a key showcase of the company's technology - in optimal operating condition.
The ideal profile
You are an engineer, either a recent graduate or with initial professional experience, with a general engineering background or a specialization in energy, hydraulics or electrochemistry.
Previous experience in batteries or water treatment would be an advantage.
You enjoy a diverse range of hands-on activities and are able to adapt to situations encountered in the field. You are also comfortable working outdoors for part of the day.
Rigorous, resourceful and autonomous, you are proactive and dynamic, making you an ideal candidate for this position.
You have an interest in renewable energy or marine energy and are keen to contribute to innovative projects supporting a more sustainable planet.
The site is not accessible by public transport.
An electrical authorization for electrical work and/or a CACES R489 Category 3 forklift certification would be an advantage.
Typical pay for similar roles
Estimate€25,150–34,500 annually
Entry level · France ·
32 similar jobs
The middle half of pay advertised on Rejobs for this group over the last 24 months. This employer has not stated a salary.
About this role
Posted
22 Oct 2026
Updated
22 Oct 2026
Job type
Full time
Workplace
On-site
Working hours
UTC+01:00
Experience
recent graduate or initial professional experience
LinkedInSweetch Energy
About Sweetch Energy
Company Overview
Name
Sweetch Energy
HeadquartersRennes, France
Founded2015
SizeApproximately 40 employees (source: preqin.com). The company has secured nearly 40 million euros in total funding by December 2023 (source: eu-startups.com).
What They Do
Sweetch Energy is a French deep-tech startup focused on osmotic energy generation, a non-intermittent renewable source derived from salinity gradients in estuaries and river deltas. Their patented INOD® technology utilizes high-efficiency eco-membranes in pressure-retarded osmosis systems to generate clean electricity 24/7, marking a viable commercial breakthrough after 50 years of research (source: eu-startups.com). Their products include modular power plants deployable at river mouths, with the first demonstrator under construction on the Rhône delta in partnership with CNR (source: eu-startups.com). Target markets extend to Europe and North America, focusing on utilities and industrial partners needing baseload renewables to complement intermittent sources like solar and wind (source: eu-startups.com).
Projects & Achievements
Although Sweetch Energy has not yet completed any fully commercial projects, its flagship project is the INOD® demonstrator on the Rhône delta, under development since at least 2023 with CNR. This site utilizes the salinity gradient of the estuary to test the technology, with 25 million euros allocated in December 2023 to complete it (source: eu-startups.com). Ongoing efforts include global expansion plans for Europe and North America, supported by a funding round of $15.5 million in October 2024 (source: cbinsights.com). Key clients and partners include CNR and EDF Group, providing strategic links for the development of osmotic technology (source: eu-startups.com).
Recent Developments
Over the past two years, Sweetch Energy closed a funding round of 25 million euros (~$27.3 million) in December 2023, led by Crédit Mutuel Impact, enabling the completion of the Rhône demonstrator and expansion of R&D (source: eu-startups.com). Another funding round of $15.5 million occurred in October 2024, bringing total funding to over $59 million across six rounds (source: cbinsights.com). Investments from EDF Pulse Ventures have strengthened ties since their investment in 2022, highlighting ongoing commitment to the development of osmotic energy (source: eu-startups.com).
Working with Them
Sweetch Energy offers roles within a team of ~40 people, including positions in engineering, business development, and leadership. The headquarters is located in Rennes, France, with potential remote work opportunities as part of the expansion into North America and Europe (source: f6s.com). The company culture reflects a high-growth startup environment, with a persistence of 10 years in R&D and an ambition supported by investors to become a global leader in osmotic energy (source: frenchtechjournal.com). Details on benefits are not publicly available, but the scale of funding suggests competitive packages for engineers and strategists in the renewable energy sector.
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