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.
| 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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SalaryIQTMSalary.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.
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 |
| Entry Level | 1% |
| Intermediate Level | 0% |
| Senior Level | 4% |
| Specialist Level | 5% |
| Expert Level | 6% |
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.
| 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%
|
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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