As of April 22, 2025, the average annual salary for a Custom Application Developer I in the United Kingdom is $68,938, with an hourly rate of $33, according to Salary.com Global Salary IQ data. The average salary ranges from $58,364 to $80,611, influenced by factors like location, education, experience, and more.

Global Market Data
25TH   $58,364
50TH(Median)   $68,938
75TH   $80,611
Custom Application Developer I Salaries by Percentile
Percentile Salary Location Last Updated
25th Percentile Custom Application Developer I Salary $58,364 United Kingdom April 22, 2025
50th Percentile Custom Application Developer I Salary $68,938 United Kingdom April 22, 2025
75th Percentile Custom Application Developer I Salary $80,611 United Kingdom April 22, 2025

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How Much Does a Custom Application Developer I Make by Hour, Week, Month, and Year?

Last Updated on April 22, 2025

Salary.com provides you with accurate and diversified Custom Application Developer I salary data based on specialized databases to help you get a fairer salary. The average annual pay for a Custom Application Developer I is about $68,938 a year, this translates to an approximate hourly rate of $33, a monthly salary of about $5,745, and a weekly pay of around $1,326. Click the switch button below to see more details about Custom Application Developer I hourly pay, weekly pay, monthly pay, and so on.

How Much Do Custom Application Developer Is Earn at Different Levels in 2025?

A Custom Application Developer I's salary varies significantly based on experience level. Entry typically earn $64,203 - $70,158, while Intermediate make $64,992 - $71,029, Senior earn $67,833 - $74,165, Specialist earn $68,149 - $74,687, Expert can reach $68,622 - $75,036 or more, depending on the company and location.

Levels Salary
Entry Level Custom Application Developer I $68,149
Intermediate Level Custom Application Developer I $68,938
Senior Level Custom Application Developer I $71,900
Specialist Level Custom Application Developer I $72,422
Expert Level Custom Application Developer I $72,771
$68,149 0 yr
$68,938 < 2 yrs
$71,900 2-4 yrs
$72,422 5-8 yrs
$72,771 > 8 yrs
Entry Level 1%
Intermediate Level 0%
Senior Level 4%
Specialist Level 5%
Expert Level 6%
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Last Updated on April 22, 2025

Skills to Boost a Custom Application Developer I Salary

Mastering key skills can significantly increase your earning potential as a Custom Application Developer I. According to Salary.com's Real-time Job Posting Data, expertise in Problem Solving can lead to a 3% salary raise, while strong Java skills boost pay by a 3%. Even Programming can result in a 2% salary increase.

Skill Library evaluates talent skills across five levels, supported by 5-10 behavior indicators, delivering precise insights for data-driven hiring decisions.
Problem Solving
Analyzing and identifying the root cause of problems and applying critical thinking skills to solve problems.
Java
Using Java in the development and maintenance of application programs and systems.
Programming
Executing logic to facilitate computing operations and functionality in one or more languages.
More Skills...
Based on recent job listings, in-demand skills in the Custom Application Developer I field include Problem Solving (3%), Java (3%), Programming (2%), Product Engineering (2%), and Application Development (2%). These skills reflect current market needs.
Skills Salary Demand
Skill & Salary Demand
Problem Solving £51,706
Problem Solving
£51,706
3%
Java £51,706
Java
£51,706
3%
Programming £51,204
Programming
£51,204
2%
Product Engineering £51,204
Product Engineering
£51,204
2%
Application Development £51,204
Application Development
£51,204
2%
Problem Solving
2.13%
Java
7.28%
Programming
1.55%
Product Engineering
8.78%
Application Development
1.05%

What are the Highest Paying Cities in the United Kingdom for Custom Application Developer I?

The top 3 highest-paying cities in the United Kingdom for Custom Application Developer I are London, Brighton and Hove, and Manchester. In London, the average salary is $74,453 per year, while Brighton and Hove offers $69,450, and Manchester pays around $66,081 annually.

Which Job Pays More: Application Systems Analysis/Developer I or Custom Application Developer I?

As of April 22, 2025 , a Application Systems Analysis/Developer I makes less than a Custom Application Developer I. A Application Systems Analysis/Developer I earns an average annual salary of $48,878. And a Custom Application Developer I earns an average annual salary of $68,938.

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