Salary insights

Salary on-site at Certain Advantage in the England region

Market pay levels based on 10 offers with salary.

Browse vacancies

Recalculated from open vacancies where the employer states pay.

Median123 516 £Half of offers pay more, half pay less
Average108 956 £Arithmetic mean of all offers
Lower quartile73 905 £25% of offers pay less
Upper quartile123 516 £25% of offers pay more

How pay is distributed

The band covers the middle half of the market (25th–75th percentile), the line marks the median.

Lower quartile73 905 £
Median123 516 £
Upper quartile123 516 £

What the numbers mean

  • Half of all offers fall between 73 905 £ and 123 516 £.
  • Every fourth offer pays more than 123 516 £.
  • The upper quartile is 67% above the lower one.
  • The average (108 956 £) is 12% below the median — many offers sit at the lower end.
  • The sample is small (10 offers), so treat the numbers as a rough guide.

Compare your salary

Check in one step whether your pay is above or below the market for this selection.

Vacancies with salary

All matching vacancies
Certain Advantage Stevenage ·

Cyber Security Engineer / SOC Analyst

179 614 – 179 614 £

World Class Defence Organisation is currently looking to recruit a Cyber Security Engineer subcontractor on an initial 24 month contract. People from a background working as a Cyber Securit…

ContractOn-siteStevenage
Certain Advantage Stevenage ·

Embedded C Software Engineer - Development

136 500 – 136 500 £

World Class Defence Organisation is currently looking to recruit an Embedded C Software Engineer on an initial 6 month contract. Rate: £70.00 per hour Location: Stevenage Hybrid / Remote wo…

ContractOn-siteStevenage
Certain Advantage Stevenage ·

Network Engineer (DV Security Clearance)

134 062 – 134 062 £

World Class Defence Organisation is currently looking to recruit a Network Engineer subcontractor on an initial 12 month contract. please note: Current DV Security Clearance is required. Ra…

ContractOn-siteStevenage
Certain Advantage Bristol ·

C++ (with QT) Software Engineer

126 750 – 126 750 £

World Class Defence Organisation based in Bristol is currently looking to recruit a C++ Software Engineer (with QT) subcontractor on an initial 12 month contract, with very likely extension…

ContractOn-siteBristol
Certain Advantage Stevenage ·

IT Software Asset Manager

126 750 – 126 750 £

World Class Defence Organisation based in Stevenage is currently looking to recruit an IT Software Asset Manager on an initial 12 month contract. Key skills and experience required: Managem…

ContractOn-siteStevenage
Certain Advantage Stevenage ·

Test Equipment Design Support Engineer

117 000 – 117 000 £

World Class Defence Organisation is currently looking to recruit a Test Equipment Design Support Engineer / Test Development Engineer on an initial 6 month contract. The role will be a hybr…

ContractOn-siteStevenage

Frequently asked questions

Why show the median instead of the average?

The median (123 516 £) is the middle of the market: half of the offers pay more and half pay less. Unlike the average (108 956 £), it is not skewed by a handful of very high salaries.

What does the typical range mean?

From 73 905 £ to 123 516 £ is the middle half of all offers — the 25th to 75th percentile. A quarter of vacancies pay below 73 905 £ and a quarter above 123 516 £.

Where does the data come from?

From 10 open vacancies with a stated salary that Finder collects from public sources. Numbers are recalculated as the selection changes.

How do I tell whether I am paid fairly?

Compare your pay with the median and the quartiles: near 123 516 £ is the market level, above 123 516 £ is the strong quarter, below 73 905 £ is a reason to negotiate. Use the “Compare my salary” button on this page.

How we calculate salaries

Short methodology and the data behind these numbers.

  1. 1We collect offersOnly vacancies from open sources where the employer states pay are used.
  2. 2We normalise themA salary range is reduced to one comparable value per vacancy.
  3. 3We compute percentilesMedian, quartiles and the average are calculated from at least 5 offers; otherwise the wider country market is shown.
  4. 4We refresh the numbersStatistics are recomputed as new vacancies appear and closed ones drop out.

Figures are pay as published by employers: taxes, bonuses and seniority inside a grade are not accounted for.