Civil engineering technician Salary range: £18,000 to £40,000 Civil engineering technicians give technical support to engineers on construction projects.
Civil Service executive officer Salary range: £23,000 to £30,000 Civil Service executive officers work in government departments that develop policies and provide services to the public.
Countryside officer Salary range: £19,000 to £34,000 Countryside officers manage, protect and improve the rural environment.
Countryside ranger Salary range: £18,000 to £28,000 Countryside rangers look after green spaces, woodlands and animal habitats that are open to the public.
Data analyst-statistician Salary range: £23,000 to £62,000 Data analyst-statisticians collect numbers and statistics to identify trends, create models and present results.
Design and development engineer Salary range: £24,000 to £50,000 Design engineers improve product performance and efficiency while researching and developing new manufacturing ideas and systems.
Diver Salary range: variable Divers work underwater at sea, or in rivers, lakes, canals and reservoirs.
Ecologist Salary range: £22,000 to £42,000 Ecologists study the relationship between plants, animals and the environment.
Electrical engineer Salary range: £20,000 to £60,000 Electrical engineers design, build and maintain electrical systems, machinery and equipment.
Electrical engineering technician Salary range: £20,000 to £40,000 Electrical engineering technicians install, repair and maintain electrical equipment, systems and controls.
Electrician Salary range: £18,000 to £42,000 Electricians fit, service and repair electrical machinery, equipment, circuits and wiring.
Electricity distribution worker Salary range: £21,000 to £35,000 Electricity distribution workers maintain and repair the power lines that connect homes and businesses to the national grid.
Electronics engineer Salary range: £26,000 to £60,000 Electronics engineers design and develop systems for industry, from mobile communications to manufacturing and aerospace.
Energy engineer Salary range: £20,000 to £50,000 Energy engineers research, design and build power generation plants, and work in the oil and gas industry.
Engineering maintenance technician Salary range: £18,000 to £40,000 Engineering maintenance technicians service and repair equipment in industries like manufacturing, production and transport.
Environmental consultant Salary range: £23,000 to £43,000 Environmental consultants advise on sustainability, including waste management, recycling, flood risk and the effects of climate change.
Environmental health officer Salary range: £27,000 to £40,000 Environmental health officers make sure people's surroundings are safe, healthy and hygienic.
Estates officer Salary range: £25,000 to £52,000 Estates officers are responsible for managing and upkeeping land and property that belongs to local councils and public bodies.
Facilities manager Salary range: £23,000 to £47,000 Facilities managers oversee the operation and maintenance of building systems and services.
Firefighter Salary range: £24,191 to £32,244 Firefighters help to protect people from fire and other dangers, and give advice on fire prevention.
Fish farmer Salary range: £18,000 to £35,000 Fish farmers breed and look after fish and shellfish in small teams.
Forestry worker Salary range: £15,000 to £27,000 Forestry workers manage trees, plants and the environment in forests and woodland.
Gas mains layer Salary range: £18,000 to £26,000 Gas mains layers install and maintain pipelines that supply homes and businesses with gas.
Gas service technician Salary range: £18,000 to £38,000 Gas service technicians install, service and repair gas appliances and heating systems.
Geoscientist Salary range: £28,000 to £42,000 Geoscientists study the Earth's structure and formation, and analyse rocks to explore its natural mineral and energy resources.
Geospatial technician Salary range: £22,000 to £32,000 Geospatial technicians collect data to create maps, update satellite navigation systems and plan construction projects.
Geotechnician Salary range: £15,000 to £31,000 Geotechnicians collect and analyse geological data from rock, soil and water samples.
Horticultural manager Salary range: £24,000 to £34,000 A horticultural manager grows plants commercially for use in parks, gardens and public spaces.
Hydrologist Salary range: £22,500 to £46,000 Hydrologists study rainfall, rivers and waterways to support the development of sustainable ways to manage water resources.
Kitchen and bathroom fitter Salary range: £17,500 to £35,000 Kitchen and bathroom fitters install kitchens and bathroom suites in homes and businesses.
Lock keeper Salary range: variable Lock keepers open and close lock gates on canals and rivers to allow leisure and commercial boats to pass through.
Marine engineer Salary range: £24,000 to £55,000 Marine engineers design, build, test and repair boats, ships, underwater craft, offshore platforms and drilling equipment.
Marine engineering technician Salary range: £20,000 to £35,000 Marine engineering technicians design, build, service and repair boats and ships.
Materials engineer Salary range: £20,000 to £45,000 Materials engineers research the behaviour of materials used in industry to make them stronger, lighter and more hard-wearing.
Meteorologist Salary range: £20,000 to £60,000 Meteorologists collect and study data from the atmosphere and oceans to make weather forecasts and carry out research.
Nanotechnologist Salary range: £15,000 to £40,000 Nanotechnologists design, create and manipulate materials on a tiny scale.
Nuclear engineer Salary range: £25,000 to £58,000 Nuclear engineers are responsible for the safe running of nuclear power stations.
Offshore drilling worker Salary range: £20,000 to £60,000 Offshore drilling workers drill for undersea oil and gas on offshore rigs.
Oil and gas operations manager Salary range: £35,000 to £75,000 Oil and gas operations managers plan and co-ordinate onshore and offshore exploration and production.
Plumber Salary range: £15,000 to £40,000 Plumbers fit and service hot and cold water systems, heating systems and drainage networks.
Refrigeration and air-conditioning installer Salary range: £20,000 to £35,000 Refrigeration and air-conditioning installers work on air quality and cooling systems in buildings, storage and transport.
Roustabout Salary range: £18,000 to £30,000 Roustabouts work on oil and gas rigs, maintaining equipment, unloading supplies and helping the drilling team.
Seismologist Salary range: £20,000 to £50,000 Seismologists study shock waves created by earthquakes and volcanic activity. They also work in oil, gas and minerals exploration.
Town planner Salary range: £18,000 to £45,000 Town planners help shape the way towns and cities develop, and balance the demands on land with the needs of the community.
Tree surgeon Salary range: £20,000 to £38,000 Tree surgeons carry out tree work including planting, cutting down, maintenance and hazard assessments.
Water network operative Salary range: £15,000 to £27,000 Water network operatives look after the pipes, mains and pumping stations that supply homes, businesses and industry with water.
Water treatment worker Salary range: £17,000 to £32,000 Water quality technicians treat and process clean water and waste water.