Software Mainframes Salaries

Software Mainframes salaries in United Kingdom

Base pay
£35K - £50K/yr
£42K/yrAverage base pay
Additional salary
£2K/yrAverage
£1K - £4K/yrRange
About our data
Very High Confidence
Last updated 7 Jul 202612 Salaries submitted
The “Most Likely Range” reflects values within the 25th and 75th percentile of all pay data available for this role. Glassdoor salaries are powered by our proprietary machine learning model, which utilises salaries collected from our users and the latest government data to make pay predictions.
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Recent salaries shared by Mainframe Developer

Location

15 salaries

Job title | Years of Experience
Total Pay
Location
Date submitted
Job title | Years of Experience
Location
Date submitted
Total Pay
Base Additional pay
Mainframe Developer
4-6 Years
£59K/yr
£56K • £3K
London, England
£59K/yr
£56K • £3K
Mainframe Developer
1-3 Years
£24K/yr
£24K • £0
Birmingham, England
£24K/yr
£24K • £0
Mainframe Developer
15+ Years
£56K/yr
£50K • £6K
Hove, England
£56K/yr
£50K • £6K
Mainframe Developer
7-9 Years
£51K - £59K/yr
Belfast, Northern Ireland
£51K - £59K/yr
Mainframe Developer
15+ Years
£46K/yr
£46K • £0
Edinburgh, Scotland
£46K/yr
£46K • £0
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Mainframe Developer
15+ Years
£47K/yr
£47K • £0
Portsmouth, South East England, England
£47K/yr
£47K • £0
Mainframe Developer
10-14 Years
£45K - £52K/yr
Edinburgh, Scotland
£45K - £52K/yr
Mainframe Developer
1-3 Years
£110K - £129K/yr
London, England
£110K - £129K/yr
Mainframe Developer
15+ Years
£27K - £32K/yr
Belfast, Northern Ireland
£27K - £32K/yr
Mainframe Developer
4-6 Years
£31K - £35K/yr
Belfast, Northern Ireland
£31K - £35K/yr

Viewing 1 - 10 of 15

Glassdoor Economist Pay Overview

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What is the pay outlook for Engineering?
Engineering jobs are in high demand and usually offer above-average salaries. Engineering offers ample opportunity for growth and development with transferable skills across an array of fields from software, supply chain and logistics to aerospace and industry. Most roles require a qualification, which can be obtained through a university degree or a diploma gained during an apprenticeship. Show more

Mainframe Developer salary in United Kingdom
A Mainframe Developer salary range in United Kingdom can vary based on important factors such as education, skills, certifications, and years of experience. A Mainframe Developer in United Kingdom can expect to see an entry level salary range of £69,257 to £145,588 per year, based on 713 salary contributions. At the highest seniority level, an experienced Mainframe Developer in United Kingdom can make a salary range of £79,417 to £127,736 with at least 5 years of experience, based on 9 salary contributions. The top 3 companies in United Kingdom where a Mainframe Developer gets the highest compensation are Verizon Communications Inc., Morgan Stanley and Pyramid Consulting Inc.. Bigger companies typically pay 35.00% more than smaller companies for a Mainframe Developer.Show more

Frequently asked questions about Mainframe Developer salaries

The average salary for a Mainframe Developer is £44,092 per year or £21 per hour in United Kingdom, which is in line with the national average. Top earners have reported making up to £65,376 (90th percentile). However, the typical pay range in United Kingdom is between £36,280 (25th percentile) and £53,995 (75th percentile) annually. Salary estimates are based on 12 salaries submitted anonymously to Glassdoor by Mainframe Developer employees in United Kingdom as of July 2026.
The highest salary for a Mainframe Developer in United Kingdom is £53,995 per year, £4,500 per month or £26 per hour.
The lowest salary for a Mainframe Developer in United Kingdom is £36,280 per year, £3,023 per month or £17 per hour.
Mainframe developers tend to earn over somewhat over the national average, with entry-level roles being slightly under. Those based in locations such as London tend to earn higher salaries, with them sometimes reaching close to six figures. The pay range reflects the demand for their skillset and the profitability of the products they develop. Pay is expected to grow as the digital transformation reaches a global level. Mainframe developers can further increase their total pay by pursuing freelance consulting opportunities.
About 80.00% of Mainframe Developer professionals feel satisfied with their salary, according to anonymous Glassdoor ratings. An additional £2,201 in potential pay per year, among other factors, can qualify the annual pay of a Mainframe Developer in United Kingdom as a good salary.
Mainframe Developer professionals in United Kingdom have a wide total pay range, between £30,583 and £65,376 depending on experience, with an estimated total pay of £44,092 following the average career path of a Mainframe Developer.