Open Source Contracts in the City of London

Open Source
Central London > City of London

The table below provides summary statistics for contract job vacancies advertised in the City of London requiring Open Source skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited Open Source 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 99 104 146
Rank change year-on-year +5 +42 -5
Contract jobs citing Open Source 20 23 32
As % of all contract jobs advertised in the City of London 1.14% 1.05% 0.88%
As % of the Processes & Methodologies category 1.22% 1.16% 0.96%
Number of daily rates quoted 18 11 17
10th Percentile - £413 £498
25th Percentile £413 £422 £520
Median daily rate (50th Percentile) £525 £500 £600
Median % change year-on-year +4.95% -16.67% -
75th Percentile £675 £725 £702
90th Percentile £711 £825 £835
Central London median daily rate £525 £500 £600
% change year-on-year +4.95% -16.67% +4.35%

All Process and Methodology Skills
City of London

Open Source 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 the City of London.

Contract vacancies with a requirement for process or methodology skills 1,636 1,988 3,346
As % of all contract IT jobs advertised in the City of London 93.17% 90.49% 91.85%
Number of daily rates quoted 1,032 1,406 2,259
10th Percentile £363 £363 £355
25th Percentile £463 £451 £475
Median daily rate (50th Percentile) £575 £565 £600
Median % change year-on-year +1.77% -5.83% +4.35%
75th Percentile £680 £688 £730
90th Percentile £775 £806 £825
Central London median daily rate £565 £550 £600
% change year-on-year +2.73% -8.33% +5.26%
Number of hourly rates quoted 12 11 24
10th Percentile £22.00 £19.92 £15.33
25th Percentile £24.00 £20.22 £18.03
Median hourly rate £29.58 £25.00 £35.00
Median % change year-on-year +18.30% -28.57% -14.63%
75th Percentile £45.00 £40.00 £58.75
90th Percentile £62.25 £41.84 £88.30
Central London median hourly rate £29.07 £27.81 £35.00
% change year-on-year +4.53% -20.54% -14.63%

Open Source
Job Vacancy Trend in the City of London

Job postings citing Open Source as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Open Source in the City of London

Open Source
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Open Source in the City of London.

Daily rate trend for Open Source in the City of London

Open Source
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Open Source in the City of London over the 6 months to 1 May 2025.

Daily rate histogram for Open Source in the City of London

Open Source
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing Open Source in the City of London.

Hourly rate trend for Open Source in the City of London

Open Source
Co-occurring Skills and Capabilities in the City of London 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 4 (20.00%) OpenStack
2 1 (5.00%) IIS
2 1 (5.00%) SharePoint
Cloud Services
1 12 (60.00%) AWS
2 2 (10.00%) Cloud Computing
2 2 (10.00%) dbt
3 1 (5.00%) Amazon Cognito
3 1 (5.00%) Amazon EKS
3 1 (5.00%) AWS Lambda
3 1 (5.00%) GitHub
3 1 (5.00%) Serverless
Communications & Networking
1 2 (10.00%) HTTP
2 1 (5.00%) DHCP
2 1 (5.00%) DNS
2 1 (5.00%) Multicast
2 1 (5.00%) TCP/IP
2 1 (5.00%) VPN
Database & Business Intelligence
1 4 (20.00%) PostgreSQL
2 3 (15.00%) Relational Database
3 2 (10.00%) Airbyte
4 1 (5.00%) Amazon RDS
4 1 (5.00%) DynamoDB
4 1 (5.00%) MySQL
4 1 (5.00%) SQL Server
Development Applications
1 7 (35.00%) Git
1 7 (35.00%) Jenkins
1 7 (35.00%) JIRA
1 7 (35.00%) Postman
1 7 (35.00%) REST Assured
1 7 (35.00%) Selenium
2 1 (5.00%) JMeter
2 1 (5.00%) MLflow
General
1 10 (50.00%) Finance
2 2 (10.00%) Financial Institution
3 1 (5.00%) Social Skills
Job Titles
1 8 (40.00%) Senior
2 7 (35.00%) Python Engineer
2 7 (35.00%) Test Engineer
3 6 (30.00%) Senior Test Engineer
4 4 (20.00%) Lead
5 3 (15.00%) Cloud Engineer
6 2 (10.00%) Artificial Intelligence Engineer
6 2 (10.00%) AWS Engineer
6 2 (10.00%) Data Engineer
6 2 (10.00%) Full-Stack Engineer
6 2 (10.00%) Senior Data Engineer
7 1 (5.00%) Analyst
7 1 (5.00%) Architect
7 1 (5.00%) Implementation Manager
7 1 (5.00%) Infrastructure Engineer
7 1 (5.00%) Lead Infrastructure Engineer
7 1 (5.00%) Non-Functional Test Analyst
7 1 (5.00%) Platform Engineer
7 1 (5.00%) Test Analyst
Libraries, Frameworks & Software Standards
1 9 (45.00%) REST
2 7 (35.00%) pytest
3 1 (5.00%) Elastic Stack
3 1 (5.00%) FIX Protocol
3 1 (5.00%) Node.js
3 1 (5.00%) RESTful
3 1 (5.00%) WebSockets
Miscellaneous
1 4 (20.00%) Private Cloud
2 1 (5.00%) Distributed Systems
2 1 (5.00%) Public Cloud
2 1 (5.00%) SWIFT Messaging Network
Operating Systems
1 6 (30.00%) Linux
2 1 (5.00%) Unix
2 1 (5.00%) Windows
Processes & Methodologies
1 9 (45.00%) CI/CD
2 7 (35.00%) API Testing
2 7 (35.00%) BDD
2 7 (35.00%) Test Automation
2 7 (35.00%) Test Scripting
2 7 (35.00%) Test Strategy
3 4 (20.00%) Capacity Planning
4 3 (15.00%) Containerisation
4 3 (15.00%) Infrastructure as Code
5 2 (10.00%) Artificial Intelligence
5 2 (10.00%) Cybersecurity
5 2 (10.00%) Data Pipeline
5 2 (10.00%) ETL
5 2 (10.00%) Full-Stack Development
5 2 (10.00%) Generative AI
5 2 (10.00%) LLM
5 2 (10.00%) Machine Learning
5 2 (10.00%) Platform Engineering
5 2 (10.00%) RDF
6 1 (5.00%) Project Management
Programming Languages
1 12 (60.00%) Python
2 2 (10.00%) SPARQL
2 2 (10.00%) TypeScript
3 1 (5.00%) Clojure
3 1 (5.00%) Elixir
3 1 (5.00%) Go
3 1 (5.00%) Haskell
3 1 (5.00%) Java
3 1 (5.00%) JavaScript
3 1 (5.00%) Perl
3 1 (5.00%) Rust
3 1 (5.00%) Scala
3 1 (5.00%) Shell Script
3 1 (5.00%) SQL
Qualifications
1 1 (5.00%) SC Cleared
1 1 (5.00%) Security Cleared
Quality Assurance & Compliance
1 1 (5.00%) Accessibility
System Software
1 1 (5.00%) Docker
Systems Management
1 5 (25.00%) Kubernetes
2 1 (5.00%) Terraform