Average Petroleum Engineer Salary in Sierra Leone for 2026

How much does a petroleum engineer make in Sierra Leone?

A typical petroleum engineer working in Sierra Leone brings home around 5,799,933 SLL a month before tax. Entry-level pay starts near 36,240,700 SLL, and the top of the ladder reaches roughly 106,439,300 SLL for the most experienced and specialised people in the role.

The wide gap between low end and top end reflects how much pay can vary inside the same job title. A junior petroleum engineer working at a small local employer earns very different money from a senior at a multinational. Skills, employer, city and years in the seat all push the number around.

How petroleum engineer pay ranges in Sierra Leone

A good way to think about salary in Sierra Leone is to look at the distribution rather than the headline average. Half of all petroleum engineers in Sierra Leone earn less than 66,841,000 SLL a year, and the other half earn more. That middle number is the median, and it is usually more useful than the average for answering "is my pay normal here".

Looking at the quartiles fills in the picture. A quarter of earners take home less than 46,319,900 SLL (the 25th percentile), and a quarter clear 83,160,200 SLL (the 75th percentile). The middle 50% of petroleum engineers sit somewhere inside that band, which is where the typical reader of this page probably lives.

The very lowest reported salaries sit around 36,240,700 SLL. The highest stretch to 106,439,300 SLL, though only a small fraction of earners ever reach that level. If you are deciding whether your own offer or current pay is reasonable, work out which of those four bands you would fall into and use that as your reference point.

Petroleum engineer pay by experience in Sierra Leone

Years of experience is the single biggest lever on pay for a petroleum engineer in Sierra Leone, ahead of education and almost any other single factor. The longer you have been in the role, the more your employer can trust you to handle complexity, mentor others and act independently, all of which command higher pay. The chart below shows how the typical petroleum engineer salary changes as you move through the career ladder.

The single largest jump on the ladder is from 0 - 2 Years to 2 - 5 Years, where pay rises by about 34%. That is the point at which a petroleum engineer typically goes from "competent in the role" to "the person other people in the team learn from", and the market pays well for that step.

Petroleum engineer pay by education in Sierra Leone

Education sits alongside experience as one of the biggest factors driving petroleum engineer pay in Sierra Leone. Higher qualifications consistently pull higher salaries, but the size of the gap tends to be smallest at junior levels and widens as people move up. Two people in the same role with the same years of experience but different degrees can end up earning very different money once they reach mid-career.

Below is the average petroleum engineer salary in Sierra Leone broken down by the highest level of education a worker has completed.

Petroleum engineer gender pay gap in Sierra Leone

The gender pay gap is a stubborn feature of almost every labour market, and Sierra Leone is no exception. Male petroleum engineers in Sierra Leone earn an average of 74,758,600 SLL a year, while female petroleum engineers earn around 66,240,600 SLL. That works out to a 13% gap in favour of men, even when comparing people doing the same work.

A pay gap of this size has a real long-term cost. Over a typical thirty-year career it can add up to several years of pay, and it compounds through pensions, retirement contributions and bonus-linked stock. Some of the gap is explained by women being more likely to work part-time, take career breaks, or be steered toward lower-paying specialisations. Some of it is straightforward unequal pay for the same job, which is harder to defend.

Pay raises for a petroleum engineer in Sierra Leone

Most countries hand out at least some kind of pay raise every year, typically when an employee's contract is reviewed or as a cost-of-living adjustment to keep wages roughly in step with inflation. The rhythm and size of those raises varies hugely between industries.

A typical worker doing this role in Sierra Leone sees a raise of about 8% every 28 months, which works out to roughly 3% on an annual basis. That figure is the typical underlying rate; in years where inflation runs high you can usually expect a bit more, and in flat-economy years a bit less.

Across all jobs in Sierra Leone, the national average raise is around 4% every 29 months.

By industry

Industries with the highest pay raises in Sierra Leone:

By experience level

Experienced workers tend to see larger raises. Retaining a senior is cheaper than replacing them, so employers fight harder for them.

Petroleum engineer bonus rates in Sierra Leone

Bonuses are the other half of total compensation, and they vary a lot between jobs and industries. Some roles are paid almost entirely in base salary; others lean heavily on bonus structures tied to revenue, project completion or company performance. Whether a job pays a bonus, how big it is, and how often it lands all factor into whether the headline salary is actually a good offer.

Which careers pay bonuses in Sierra Leone

Revenue-facing roles tend to pay the biggest bonuses. Operational and support roles tend toward smaller, more predictable ones.

Petroleum engineer: public vs private sector pay

Public-sector pay in Sierra Leone is about 14% more than private-sector pay for similar work. The private sector typically offers stronger upside and bigger bonuses; the public sector typically offers better benefits and stability.

Petroleum engineer salary by city in Sierra Leone

Petroleum engineer pay is not even across Sierra Leone. The chart below shows the highest-paying cities in the dataset, followed by the full location table.

Similar jobs to a petroleum engineer

Other jobs in the same category as a petroleum engineer in Sierra Leone.

Petroleum Engineer in Sierra Leone: FAQs