Code Optimisation Contracts in England

Code Optimisation
UK > England

The table below provides summary statistics for contract job vacancies advertised in England requiring Code Optimisation skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited Code Optimisation over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 472 535 626
Rank change year-on-year +63 +91 +116
Contract jobs citing Code Optimisation 13 7 27
As % of all contract jobs advertised in England 0.053% 0.019% 0.054%
As % of the Processes & Methodologies category 0.059% 0.022% 0.059%
Number of daily rates quoted 6 6 26
10th Percentile £285 £400 £587
25th Percentile £316 £431 £763
Median daily rate (50th Percentile) £478 £588 £800
Median % change year-on-year -18.64% -26.56% +14.29%
75th Percentile £694 £713 £1,034
90th Percentile £781 £738 £1,074
UK median daily rate £356 £588 £800
% change year-on-year -39.40% -26.56% +18.52%

All Process and Methodology Skills
England

Code Optimisation falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills in England.

Contract vacancies with a requirement for process or methodology skills 22,202 32,193 45,529
As % of all contract IT jobs advertised in England 91.16% 86.56% 90.24%
Number of daily rates quoted 14,534 21,105 31,969
10th Percentile £310 £300 £325
25th Percentile £413 £413 £445
Median daily rate (50th Percentile) £525 £525 £550
Median % change year-on-year - -4.55% +2.33%
75th Percentile £638 £650 £675
90th Percentile £750 £750 £765
UK median daily rate £520 £525 £550
% change year-on-year -0.95% -4.55% +4.76%
Number of hourly rates quoted 921 2,246 1,592
10th Percentile £14.42 £12.92 £10.87
25th Percentile £18.20 £16.01 £16.25
Median hourly rate £29.07 £36.00 £37.50
Median % change year-on-year -19.25% -4.00% +53.06%
75th Percentile £63.75 £60.00 £65.00
90th Percentile £75.00 £72.50 £75.00
UK median hourly rate £29.00 £35.65 £37.30
% change year-on-year -18.65% -4.42% +49.20%

Code Optimisation
Job Vacancy Trend in England

Job postings citing Code Optimisation as a proportion of all IT jobs advertised in England.

Job vacancy trend for Code Optimisation in England

Code Optimisation
Contractor Daily Rate Trend in England

3-month moving average daily rate quoted in jobs citing Code Optimisation in England.

Daily rate trend for Code Optimisation in England

Code Optimisation
Daily Rate Histogram in England

Daily rate distribution for jobs citing Code Optimisation in England over the 6 months to 1 May 2025.

Daily rate histogram for Code Optimisation in England

Code Optimisation
Contractor Hourly Rate Trend in England

3-month moving average hourly rates quoted in jobs citing Code Optimisation in England.

Hourly rate trend for Code Optimisation in England

Code Optimisation
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Code Optimisation within the England region over the 6 months to 1 May 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
London +45 11 £356 -50.90% 4
Yorkshire - 1 £600 - 1
North of England - 1 £600 - 1
Code Optimisation
UK

Code Optimisation
Co-occurring Skills and Capabilities in England by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 2 (15.38%) Apache
2 1 (7.69%) Apache Airflow
2 1 (7.69%) Apache Spark
Cloud Services
1 5 (38.46%) AWS
1 5 (38.46%) Azure
2 2 (15.38%) Azure Event Grid
2 2 (15.38%) GCP
2 2 (15.38%) GitHub
2 2 (15.38%) GitHub Actions
3 1 (7.69%) Amazon EC2
3 1 (7.69%) Amazon S3
3 1 (7.69%) AWS CloudFormation
3 1 (7.69%) AWS Lambda
3 1 (7.69%) Serverless
Database & Business Intelligence
1 3 (23.08%) PostgreSQL
2 2 (15.38%) MongoDB
3 1 (7.69%) Amazon Redshift
3 1 (7.69%) BigQuery
3 1 (7.69%) Delta Lake
3 1 (7.69%) Hadoop
3 1 (7.69%) InterSystems Cache
3 1 (7.69%) Looker
3 1 (7.69%) Spark SQL
3 1 (7.69%) SQL Server
Development Applications
1 2 (15.38%) Git
1 2 (15.38%) Jenkins
1 2 (15.38%) JUnit
1 2 (15.38%) Maven
1 2 (15.38%) Mockito
2 1 (7.69%) Artifactory
2 1 (7.69%) Atlassian Bamboo
2 1 (7.69%) Bitbucket
2 1 (7.69%) Terragrunt
General
1 8 (61.54%) Finance
2 1 (7.69%) Analytical Skills
2 1 (7.69%) Social Skills
Job Titles
1 4 (30.77%) Developer
2 3 (23.08%) Full-Stack Engineer
3 2 (15.38%) Java Engineer
3 2 (15.38%) Python Developer
4 1 (7.69%) Analyst
4 1 (7.69%) Data Engineer
4 1 (7.69%) Full-Stack Developer
4 1 (7.69%) GCP Engineer
4 1 (7.69%) Lead
4 1 (7.69%) Qualitative Analyst
4 1 (7.69%) Quantitative Analyst
4 1 (7.69%) Quantitative Developer
4 1 (7.69%) Senior
4 1 (7.69%) Senior Developer
4 1 (7.69%) Senior Quantitative Developer
4 1 (7.69%) Technical Engineer
4 1 (7.69%) Technical Leader
Libraries, Frameworks & Software Standards
1 5 (38.46%) AngularJS
2 2 (15.38%) .NET
2 2 (15.38%) FastAPI
2 2 (15.38%) Hibernate
2 2 (15.38%) JPA
2 2 (15.38%) Mongoose
2 2 (15.38%) Node.js
2 2 (15.38%) PySpark
2 2 (15.38%) React
2 2 (15.38%) Spring
2 2 (15.38%) Spring Boot
3 1 (7.69%) Apache Beam
3 1 (7.69%) boto
3 1 (7.69%) LAPP Stack
Miscellaneous
1 3 (23.08%) Mobile App
2 1 (7.69%) Cloud Native
2 1 (7.69%) Distributed Computing
2 1 (7.69%) Embedded Systems
2 1 (7.69%) Legacy Code
2 1 (7.69%) Product Ownership
2 1 (7.69%) RISC-V
2 1 (7.69%) SIMD
2 1 (7.69%) Virtual Team
Operating Systems
1 3 (23.08%) Linux
2 1 (7.69%) Unix
2 1 (7.69%) Windows
Processes & Methodologies
1 5 (38.46%) CI/CD
1 5 (38.46%) Full-Stack Development
2 3 (23.08%) Containerisation
2 3 (23.08%) Data Engineering
2 3 (23.08%) Event-Driven
2 3 (23.08%) TDD
2 3 (23.08%) Unit Testing
3 2 (15.38%) Agile
3 2 (15.38%) BDD
3 2 (15.38%) Clean Code
3 2 (15.38%) Commercial Awareness
3 2 (15.38%) Continuous Improvement
3 2 (15.38%) Integration Testing
3 2 (15.38%) Mentoring
3 2 (15.38%) Risk Management
3 2 (15.38%) SOA
3 2 (15.38%) Software Engineering
4 1 (7.69%) Community of Practice
4 1 (7.69%) DevSecOps
4 1 (7.69%) Problem-Solving
Programming Languages
1 6 (46.15%) Java
1 6 (46.15%) Python
1 6 (46.15%) TypeScript
2 5 (38.46%) SQL
3 3 (23.08%) Kotlin
4 2 (15.38%) C++
4 2 (15.38%) JavaScript
5 1 (7.69%) Assembly Language
5 1 (7.69%) C
Qualifications
1 1 (7.69%) Degree
Quality Assurance & Compliance
1 1 (7.69%) Accessibility
1 1 (7.69%) QA
System Software
1 3 (23.08%) Docker
2 1 (7.69%) Apache ZooKeeper
2 1 (7.69%) QEMU
Systems Management
1 4 (30.77%) Kubernetes
2 1 (7.69%) Ansible
2 1 (7.69%) Argo
2 1 (7.69%) Progress Chef
2 1 (7.69%) Puppet
Vendors
1 3 (23.08%) Microsoft
2 2 (15.38%) Databricks
3 1 (7.69%) Google