Applications Developer Mainframes Salaries
Applications Developer Mainframes salaries in United Kingdom
Base pay
£30K - £47K/yr
£38K/yrAverage base pay
Additional salary
£3K/yrAverage
£1K - £6K/yrRange
About our data
Very High Confidence
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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Glassdoor Economist Pay Overview

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
Frequently asked questions about Applications Developer - Mainframes salaries
How much does an Applications Developer - Mainframes in United Kingdom make?
The average salary for an Applications Developer - Mainframes is £40,444 per year or £19 per hour in United Kingdom, which is in line with the national average. Top earners have reported making up to £68,231 (90th percentile). However, the typical pay range in United Kingdom is between £31,422 (25th percentile) and £52,786 (75th percentile) annually. Salary estimates are based on 3733 salaries submitted anonymously to Glassdoor by Applications Developer - Mainframes employees in United Kingdom as of July 2026.
What is the highest salary for an Applications Developer - Mainframes in United Kingdom?
The highest salary for an Applications Developer - Mainframes in United Kingdom is £52,786 per year, £4,399 per month or £25 per hour.
What is the lowest salary for an Applications Developer - Mainframes in United Kingdom?
The lowest salary for an Applications Developer - Mainframes in United Kingdom is £31,422 per year, £2,618 per month or £15 per hour.
What is the salary trajectory of an Applications Developer - Mainframes?
The salary trajectory of an Applications Developer - Mainframes ranges between locations and employers. The salary starts at £32,240 per year (estimate) and goes up to £97,892 per year (estimate) for the highest level of seniority.
Does an Applications Developer - Mainframes make good money in United Kingdom?
About 66.45% of Applications Developer - Mainframes professionals feel satisfied with their salary, according to anonymous Glassdoor ratings. An additional £2,795 in potential pay per year, among other factors, can qualify the annual pay of an Applications Developer - Mainframes in United Kingdom as a good salary.
How much does an Applications Developer - Mainframes make over time in United Kingdom?
Applications Developer - Mainframes professionals in United Kingdom have a wide total pay range, between £25,242 and £68,231 depending on experience, with an estimated total pay of £40,444 following the average career path of an Applications Developer - Mainframes.