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Chemical engineer: what the job actually is

Designing and running the processes that turn raw materials into fuels, plastics, medicines, food and clean water, safely and at scale.

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Chemical engineer: quick facts

Chemical engineer salary in Ontario: the median pay is $51.28 an hour, according to Job Bank (reference period 2023-2024). Its three-year outlook in Ontario is limited. The job usually needs a university degree.

Median pay in Ontario
$51.28 an hour
Pay range (low to high)
$28.85 to $72.12 an hour
Job outlook, 2025-2027
Limited
People working in it in Ontario
4,300
Usually needs
Usually a university degree

Source: Job Bank wages (updated 19 November 2025) and job prospects (updated 10 December 2025), NOC 21320. Pay varies by region and experience.

The work

What this job actually is

  • Working out how to make a large amount of something, reliably and safely, when a chemist has only made a small amount in a lab.
  • The work involves flows of liquids, gases and heat through pipes, tanks and reactors. Much of it is calculation, simulation and drawing, then testing against a real plant.
  • Chemical engineers are found in many industries, so the work varies. Safety, cost, waste and quality all pull in different directions and you are the person balancing them.
  • Job Bank's page notes that the occupational group includes green jobs that can contribute to environmental outcomes, though not every position qualifies.
  • Once licensed, you take legal responsibility for what you approve. In Ontario, Job Bank says licensing is required to approve engineering drawings and reports and to practise as a Professional Engineer.

A Tuesday

What a normal day looks like

Not a good day or a bad one. The ordinary version, which is what you would actually be living.

  1. 8:00 — Read the overnight production log. A temperature drifted for an hour and then recovered.
  2. 8:45 — Walk the plant floor with an operator who explains what the drift sounded like. The log did not say that.
  3. 10:00 — Update the process model with the new data and see whether the drift was expected.
  4. 11:15 — Meeting about a proposed change to the cleaning cycle. Nobody wants it to take longer. Somebody is right.
  5. 12:15 — Lunch, and an argument about whether a cheaper material will corrode.
  6. 13:00 — Check a safety review: what happens if a valve fails open, and who finds out first.
  7. 14:30 — Write up the options with costs, risks and a recommendation, in a form a manager can approve in one reading.
  8. 15:45 — Review a colleague's calculation. A unit has been converted twice.
  9. 16:30 — Plan a small test for next week and book the equipment.
  10. 17:00 — Leave a note on what is still unverified. Some of it will be unverified for weeks.

Honestly

Who loves this, and who should not do it

The second list is the useful one. Nearly every careers page leaves it out, which is why nearly every careers page reads like an advert.

You may like this if
  • You like chemistry and maths when they are used to make something work at scale.
  • You can care about safety checks without finding them tedious.
  • You are comfortable in plants, labs and offices, sometimes in the same day.
  • You like trade-offs between cost, safety and quality and do not need a perfect answer.
  • You are patient with detailed calculation and documentation.
You may hate this if
  • You want a wide-open market. Job Bank rates the 2025-2027 Ontario outlook as Limited and says decline will lead to the loss of some positions.
  • You dislike abstract maths. The degree is heavy on it, and the first years are mostly theory.
  • You dislike being responsible when something can go wrong. A process failure can hurt people, and your name is on the approval.
  • You do not want to work around plants, hazardous materials and shift schedules, which some roles involve.
  • You want to see a finished product. A lot of the output is a design, a simulation or a report.

The route in

How you actually get there in Ontario

  1. Read the outlook first

    Job Bank rates the 2025-2027 Ontario outlook for chemical engineers as Limited. It says employment decline will lead to the loss of some positions, not many positions will become available through retirements, and there are a small number of unemployed workers with recent experience. That is a reason to arrive with co-op experience and skills that cross industries, not a reason to stop. The people who get hired are usually the ones who have already worked in a plant or lab.

  2. Earn an accredited engineering degree

    Job Bank's Ontario page says a bachelor's degree in chemical engineering or a related engineering discipline is required, and a master's or doctorate may also be needed. Engineers Canada says the academic requirement for licensure is a degree from a Canadian Engineering Accreditation Board-accredited undergraduate programme or equivalent qualifications. See /careers/degrees/engineering for what Ontario graduates go on to, and look for a co-op stream.

  3. Gain supervised experience and pass the professional practice exam

    Job Bank says engineers are eligible for registration after graduating from an accredited programme, three or four years of supervised engineering work experience, and passing a professional practice examination. Engineers Canada lists the Professional Practice Examination, good character and the ability to work in English or French as further criteria, and says the experience requirement is set by the province's regulator. In Ontario that regulator is Professional Engineers Ontario.

  4. Know what you can do before you are licensed

    Job Bank says licensing is required to approve engineering drawings and reports and to practise as a Professional Engineer (P.Eng.). Until then you work under a licensed engineer. Check PEO's own pages for the current application rules, because they change, and this page could not read them.

Where this comes from: Job Bank — Requirements for chemical engineers in Ontario · Engineers Canada — Overview of the licensing process

The money

Chemical engineer salary in Ontario

Job Bank's own figures, quoted rather than summarised, with the period they describe — so you can tell how old they are and go and check them.

$28.85
Low (hourly)
$51.28
Median (hourly)
$72.12
High (hourly)

Ontario, NOC 21320. Reference period 2023-2024, last updated by Job Bank on 19 November 2025. Wages vary a lot by region inside Ontario and by how long you have been doing it — the low figure is roughly where you start, not what the job is worth.

Source: Job Bank — Chemical engineer wages in Ontario

Where it is heading

The outlook for the next three years

Job Bank publishes a three-year outlook for every job in every province. It is the closest thing to an honest forecast, and it moves, so read it as a weather report rather than a verdict.

Ontario, 2025-2027

Limited2 out of 5 stars

  • Employment decline will lead to the loss of some positions.
  • Not many positions will become available due to retirements.
  • There are a small number of unemployed workers with recent experience in this occupation.

What that rating means: how many openings Job Bank expects in Ontario for this kind of work against how many people are likely to be looking — not whether it is a good job. A “limited” rating means more competition for each opening; it does not close the door, and it can change before you are ready to walk through it.

4,300
people work in this job in Ontario
32%
are women (48% across all jobs)
7%
are self-employed (15% across all jobs)

Source: Job Bank — Chemical engineers job prospects in Ontario (NOC 21320). Outlook updated by Job Bank on 10 December 2025; read by us on 5 October 2026.

Before you leave school

Things you can do now

  • Take the highest maths, chemistry and physics your school offers. Engineering degrees ask for these in Grade 12, and checking university requirements in Grade 10 keeps options open.
  • Join a science fair, robotics club or any project where something has to work reliably, not just once.
  • Ask your guidance office about co-op in a manufacturing, food or water-treatment workplace, and about tours of a plant.
  • Compare the entry requirements and co-op options for two Ontario chemical engineering programmes on ontariouniversitiesinfo.ca.

Test it

Do this before you decide anything

Reading about a job tells you almost nothing. This is designed to be done alone, this week, for free.

Scale up a recipe and see what breaks

About 75 minutes
  1. Pick a simple recipe you already make, such as pancakes or a sauce, and write down the quantities and the time each stage takes.
  2. Work out on paper what changes if you make four times as much in the same pan: heating time, mixing, how long it takes to cool. Predict at least two things that will go wrong.
  3. Make a double batch if you can, and note which of your predictions were right and which surprised you.
  4. Write two sentences on what you would measure, and how, if you had to make this reliably every day.

What it tells you. If predicting what breaks at larger scale was the interesting part, chemical engineering asks the same question about everything. If you enjoyed the cooking but not the predicting, a lab, food-science or culinary route might fit better. If neither held your attention, the long, calculation-heavy degree will be a slog.

Better than any article

Questions for somebody who does this job

Most people say yes to a teenager who asks good questions. These are the ones that get real answers rather than encouragement.

  1. “What process do you work on, and what does the plant look like on a normal day?”
  2. “How did you get your first engineering job, and how much did co-op matter?”
  3. “What is the hardest part of getting licensed, and how long did it take you?”
  4. “How much of your week is at a computer and how much on the floor?”
  5. “How secure does the work feel in your industry right now?”
  6. “Which skills do you wish you had built earlier?”

Could you own one of these?

The part other career sites never mention

Sometimes, later. Some licensed engineers become independent consultants, and Job Bank's figures show a lower share of self-employment in this group than in the workforce overall. It generally follows years of experience and a licence, because clients pay for your judgment and your signature.

Business 101 is free and teaches that part

Quick answers

Questions people ask about this job

How much does a chemical engineer make in Ontario?

The median pay for a chemical engineer in Ontario is $51.28 an hour, according to Job Bank (reference period 2023-2024, updated 19 November 2025). The range Job Bank publishes runs from $28.85 to $72.12 an hour. Pay varies by region, employer and experience.

What is the job outlook for a chemical engineer in Ontario?

Job Bank rates the employment outlook for this work in Ontario as limited for 2025-2027 (updated 10 December 2025). Employment decline will lead to the loss of some positions. Not many positions will become available due to retirements. There are a small number of unemployed workers with recent experience in this occupation. A lower rating means more competition for each opening, not that no one is hiring.

What do you need to become a chemical engineer in Ontario?

Job Bank says this work usually needs a university degree. The usual route in Ontario, in order: Read the outlook first; Earn an accredited engineering degree; Gain supervised experience and pass the professional practice exam.

How many people work as a chemical engineer in Ontario, and how many are women?

Job Bank counts about 4,300 people working in this job in Ontario. 32% of them are women, compared with 48% across all jobs. That describes who does the work today, not who can.

Tech and engineering jobs: who is hiring What can you do with your degree?

Not sure this is the right list to be reading

Start from yourself, not from the job.

Future Finder is free, takes about ten minutes, needs no account and stores nothing. It will tell you which kinds of work you lean toward, and which of these pages are worth your time.

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Parent of a teenager weighing this up? Career coaching for teens gets them talking to people who do the work, anywhere in Ontario.

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Wages and training requirements change. Every figure on this page is linked to the body that publishes it, and the review date above says when we last checked. If you find something out of date, tell us and we will fix it.