Chemical engineering jobs

Chemical & Process Engineering Jobs in Renewable Energy

Chemical and process engineering covers the design and operation of the reactions, separations, and material flows behind an energy product: sizing a reactor, specifying pumps and filtration, scaling a laboratory recipe into a production line, and keeping a plant running within its process envelope. In renewable energy the discipline has shifted decisively towards electrochemistry, because almost every technology that stores or converts clean electricity does so through a cell rather than a combustor.

That shift is visible in what the sector is actually building. The IEA reports that global installed water electrolysis capacity reached 2 GW in 2024 with more than another gigawatt added by July 2025, and that China now holds 65 per cent of installed and committed capacity. Two gigawatts is a modest number for a technology attracting this much attention, and closing the gap between announced projects and operating plants is precisely the work process engineers are hired to do.

Where chemical engineers sit in the energy transition

Four employer types dominate. Electrolyser manufacturers such as Ohmium and Nel Hydrogen need stack and membrane electrode assembly process engineers, including the ink technicians and electrode process engineers who handle catalyst coating, one of the least discussed and most yield-critical steps in the whole electrolysis supply chain. Battery cell makers like Verkor at Bourbourg and recyclers such as American Battery Technology Company hire electrode process engineers and hydrometallurgical specialists. Fuel cell and power-to-X companies, Bloom Energy, Twelve, Lydian, and Charm Industrial among them, work on CO2 electrolysis, synthetic fuels, and carbon removal. Fusion developers, notably Commonwealth Fusion Systems, need process and facilities engineers for tritium handling and cryogenics.

The European battery build-out gives the clearest sense of scale and of risk. Fraunhofer ISI estimates that announced cell capacity exceeds two terawatt hours a year by 2030 but that only 54 to 75 per cent will realistically be built, with more than 700 GWh already delayed or cancelled. Anyone weighing a move into battery manufacturing should read those numbers carefully: the demand for process engineers is real, and so is project mortality.

What employers screen for

Job titles cluster tightly. Process engineer, senior process engineer, and chemical process engineer account for most postings, with electrochemical engineer, analytical chemist, multiphysics modeller, and equipment engineer for pumps and filtration filling out the rest. Directors of process engineering appear regularly, which is unusual for a tag of this size and reflects how many of these companies are standing up their first production line.

The most valued combination is scale-up experience plus electrochemistry. Plenty of chemical engineers understand reaction kinetics; far fewer have carried a coating, calendering, or membrane process from pilot to full rate and dealt with the yield losses that appear only at volume. Process safety credentials transfer directly, and candidates from refining, pharmaceuticals, and semiconductor fabs move into these roles regularly. Semiconductor backgrounds are particularly welcome where deposition and cleanroom discipline matter.

Geographically the work follows the plants. Delft and Bengaluru carry the research and design load, Bourbourg in northern France and Devens and Somerville in Massachusetts are manufacturing sites, and Reno, Cork, Espoo, Uppsala, and Grenoble round out a spread that reflects where cells, stacks, and fuels are being made rather than where energy is generated.

The direction of travel is towards manufacturing engineering rather than plant operations. A conventional process engineer spends a career optimising one continuous plant; in this sector the job is more often to industrialise a product that has never been made at rate before, which is a different skill and, for now, a better paid one.