Open Source Contracts in London

Open Source
England > London

The table below provides summary statistics for contract job vacancies advertised in 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 190 272 213
Rank change year-on-year +82 -59 -45
Contract jobs citing Open Source 168 119 329
As % of all contract jobs advertised in London 1.34% 0.67% 1.22%
As % of the Processes & Methodologies category 1.45% 0.75% 1.34%
Number of daily rates quoted 120 74 203
10th Percentile £409 £350 £465
25th Percentile £534 £413 £537
Median daily rate (50th Percentile) £600 £506 £675
Median % change year-on-year +18.52% -25.00% +8.00%
75th Percentile £838 £670 £738
90th Percentile - £776 £850
England median daily rate £600 £570 £615
% change year-on-year +5.26% -7.32% +4.68%
Number of hourly rates quoted 1 5 5
10th Percentile - - £59.55
25th Percentile - £25.99 -
Median hourly rate £95.00 £26.97 £75.00
Median % change year-on-year +252.24% -64.04% +36.36%
75th Percentile - £57.50 -
90th Percentile - £70.25 £84.00
England median hourly rate £95.00 £55.00 £75.00
% change year-on-year +72.73% -26.67% +36.36%

All Process and Methodology Skills
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 London.

Contract vacancies with a requirement for process or methodology skills 11,564 15,790 24,631
As % of all contract IT jobs advertised in London 92.16% 88.55% 91.11%
Number of daily rates quoted 7,847 11,316 17,711
10th Percentile £350 £338 £375
25th Percentile £440 £450 £475
Median daily rate (50th Percentile) £550 £550 £590
Median % change year-on-year - -6.78% +2.61%
75th Percentile £688 £675 £700
90th Percentile £813 £800 £800
England median daily rate £525 £525 £550
% change year-on-year - -4.55% +2.33%
Number of hourly rates quoted 166 324 278
10th Percentile £16.17 £16.00 £18.59
25th Percentile £22.68 £20.00 £22.53
Median hourly rate £31.67 £29.50 £38.13
Median % change year-on-year +7.36% -22.62% +5.90%
75th Percentile £50.75 £47.56 £62.64
90th Percentile £63.75 £65.93 £76.78
England median hourly rate £29.07 £36.00 £37.50
% change year-on-year -19.25% -4.00% +53.06%

Open Source
Job Vacancy Trend in London

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

Job vacancy trend for Open Source in London

Open Source
Contractor Daily Rate Trend in London

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

Daily rate trend for Open Source in London

Open Source
Daily Rate Histogram in London

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

Daily rate histogram for Open Source in London

Open Source
Contractor Hourly Rate Trend in London

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

Hourly rate trend for Open Source in London

Open Source
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Open Source within the London 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
Central London -1 20 £525 +4.95% 17
South London +7 1 £380 +26.67% 1
Open Source
England

Open Source
Co-occurring Skills and Capabilities in 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 32 (19.05%) Apache Spark
2 29 (17.26%) Apache
2 29 (17.26%) Apache Airflow
3 7 (4.17%) OpenStack
4 1 (0.60%) Camunda
4 1 (0.60%) CMS
4 1 (0.60%) Drupal
4 1 (0.60%) IIS
4 1 (0.60%) nginx
4 1 (0.60%) SharePoint
4 1 (0.60%) Tomcat
Applications
1 1 (0.60%) Chatbot
Cloud Services
1 98 (58.33%) AWS
2 52 (30.95%) Serverless
3 51 (30.36%) AWS Lambda
4 42 (25.00%) OpenShift
5 33 (19.64%) Amazon ECS
6 32 (19.05%) dbt
7 24 (14.29%) Amazon S3
7 24 (14.29%) AWS CloudFormation
7 24 (14.29%) Azure
8 18 (10.71%) Amazon EKS
9 16 (9.52%) GCP
10 7 (4.17%) GitHub
11 6 (3.57%) Amazon EC2
12 5 (2.98%) Amazon SQS
13 4 (2.38%) Entra ID
14 3 (1.79%) Azure DevOps
14 3 (1.79%) IaaS
15 2 (1.19%) Cloud Computing
15 2 (1.19%) GitHub Actions
15 2 (1.19%) Power Platform
Communications & Networking
1 4 (2.38%) HTTPS
2 3 (1.79%) HTTP
3 2 (1.19%) DNS
3 2 (1.19%) VSAN
4 1 (0.60%) DHCP
4 1 (0.60%) InfiniBand
4 1 (0.60%) Multicast
4 1 (0.60%) Network Security
4 1 (0.60%) TCP/IP
4 1 (0.60%) VPN
Database & Business Intelligence
1 28 (16.67%) Amazon Athena
1 28 (16.67%) Apache Arrow
1 28 (16.67%) Apache Iceberg
1 28 (16.67%) Apache Ignite
1 28 (16.67%) Dremio
2 24 (14.29%) Amazon RDS
3 15 (8.93%) Apache Cassandra
3 15 (8.93%) Relational Database
4 12 (7.14%) MongoDB
5 11 (6.55%) DB2
6 7 (4.17%) Amazon Redshift
6 7 (4.17%) PostgreSQL
7 4 (2.38%) Hadoop
8 3 (1.79%) MySQL
8 3 (1.79%) NoSQL
8 3 (1.79%) SQL Server
9 2 (1.19%) Big Data
9 2 (1.19%) Data Warehouse
9 2 (1.19%) Metadata
9 2 (1.19%) Power BI
Development Applications
1 33 (19.64%) Artifactory
2 24 (14.29%) Jenkins
3 16 (9.52%) Git
4 12 (7.14%) JUnit
4 12 (7.14%) Selenium
5 8 (4.76%) JIRA
5 8 (4.76%) Postman
5 8 (4.76%) REST Assured
6 7 (4.17%) SonarQube
7 4 (2.38%) Cypress.io
7 4 (2.38%) HP UFT
7 4 (2.38%) TestComplete
8 3 (1.79%) GitLab
9 1 (0.60%) CircleCI
9 1 (0.60%) Cucumber
9 1 (0.60%) Eclipse
9 1 (0.60%) IntelliJ
9 1 (0.60%) JMeter
9 1 (0.60%) MLflow
9 1 (0.60%) WebDriver
General
1 64 (38.10%) Finance
2 46 (27.38%) Social Skills
3 33 (19.64%) Front Office
4 30 (17.86%) Analytical Skills
5 19 (11.31%) Banking
5 19 (11.31%) Public Sector
6 14 (8.33%) Investment Banking
7 6 (3.57%) Telecoms
8 4 (2.38%) Inclusion and Diversity
9 3 (1.79%) French Language
10 2 (1.19%) Digital Health
10 2 (1.19%) Financial Institution
10 2 (1.19%) Marketing
10 2 (1.19%) Presentation Skills
10 2 (1.19%) Retail
11 1 (0.60%) Games
11 1 (0.60%) Influencing Skills
11 1 (0.60%) Legal
11 1 (0.60%) Publishing
11 1 (0.60%) Retail Banking
Job Titles
1 43 (25.60%) Developer
2 36 (21.43%) AWS Engineer
2 36 (21.43%) Python Engineer
3 35 (20.83%) Data Engineer
3 35 (20.83%) DevOps Engineer
4 33 (19.64%) AWS DevOps
4 33 (19.64%) AWS DevOps Engineer
5 31 (18.45%) Senior
6 25 (14.88%) Architect
7 19 (11.31%) AWS Architect
8 17 (10.12%) Senior Developer
9 16 (9.52%) Lead
10 14 (8.33%) Java Developer
11 11 (6.55%) Investment Banking Java Developer
11 11 (6.55%) Linux Developer
11 11 (6.55%) Senior Investment Banking Java Developer
11 11 (6.55%) Senior Java Developer
11 11 (6.55%) Senior SQL Developer
11 11 (6.55%) SQL Developer
12 7 (4.17%) Kubernetes Engineer
Libraries, Frameworks & Software Standards
1 57 (33.93%) Kafka
2 33 (19.64%) J2EE
3 28 (16.67%) PySpark
4 15 (8.93%) gRPC
5 14 (8.33%) REST
5 14 (8.33%) Spring
6 11 (6.55%) JMS
7 8 (4.76%) Node.js
7 8 (4.76%) OAuth
8 7 (4.17%) OpenID
8 7 (4.17%) pytest
9 6 (3.57%) .NET
10 5 (2.98%) React
11 4 (2.38%) FIDO
11 4 (2.38%) JDBC
11 4 (2.38%) OAuth2
11 4 (2.38%) Playwright
11 4 (2.38%) SOAP
12 3 (1.79%) CSS
12 3 (1.79%) HTML
Miscellaneous
1 14 (8.33%) Distributed Systems
2 11 (6.55%) Data Structures
2 11 (6.55%) Equities
3 8 (4.76%) Public Cloud
4 6 (3.57%) Private Cloud
5 5 (2.98%) Tandem
6 4 (2.38%) Cloud Native
6 4 (2.38%) PKI
6 4 (2.38%) Taxonomies
7 3 (1.79%) Replication
7 3 (1.79%) Virtual Team
8 2 (1.19%) Clustering
8 2 (1.19%) Data Centre
8 2 (1.19%) Management Information System
8 2 (1.19%) NHS
9 1 (0.60%) Algorithms
9 1 (0.60%) Blog
9 1 (0.60%) Derivative
9 1 (0.60%) Greenfield Project
9 1 (0.60%) Legacy Systems
Operating Systems
1 28 (16.67%) Linux
2 7 (4.17%) Windows
3 3 (1.79%) Red Hat Enterprise Linux
4 2 (1.19%) Unix
5 1 (0.60%) Windows Server
Processes & Methodologies
1 65 (38.69%) Agile
2 60 (35.71%) Software Engineering
3 54 (32.14%) DevOps
4 53 (31.55%) CI/CD
5 36 (21.43%) Problem-Solving
6 34 (20.24%) Site Reliability Engineering
7 33 (19.64%) Asset Management
7 33 (19.64%) Containerisation
8 30 (17.86%) Data Engineering
9 25 (14.88%) Test Automation
10 23 (13.69%) Mentoring
11 20 (11.90%) High Availability
12 19 (11.31%) Microservices
12 19 (11.31%) Stakeholder Management
13 15 (8.93%) Infrastructure as Code
13 15 (8.93%) Performance Tuning
13 15 (8.93%) SDLC
14 12 (7.14%) Database Tuning
14 12 (7.14%) Test Scripting
15 11 (6.55%) Multithreading
Programming Languages
1 82 (48.81%) Python
2 70 (41.67%) Java
3 56 (33.33%) Go
4 25 (14.88%) SQL
5 22 (13.10%) JavaScript
6 15 (8.93%) Shell Script
7 11 (6.55%) TypeScript
8 7 (4.17%) C#
9 5 (2.98%) Bash
10 3 (1.79%) R
11 2 (1.19%) Scala
11 2 (1.19%) SPARQL
12 1 (0.60%) C
12 1 (0.60%) C++
12 1 (0.60%) Clojure
12 1 (0.60%) Haskell
12 1 (0.60%) Korn
12 1 (0.60%) Perl
12 1 (0.60%) Ruby
12 1 (0.60%) T-SQL
Qualifications
1 32 (19.05%) Security Cleared
2 25 (14.88%) SC Cleared
3 17 (10.12%) AWS Certification
3 17 (10.12%) AWS Certified Solutions Architect
4 7 (4.17%) Degree
5 6 (3.57%) DV Cleared
6 2 (1.19%) Master's Degree
6 2 (1.19%) PhD
7 1 (0.60%) CISA
7 1 (0.60%) CISM
7 1 (0.60%) CISSP
7 1 (0.60%) CITP
7 1 (0.60%) CRISC
7 1 (0.60%) TOGAF Certification
Quality Assurance & Compliance
1 3 (1.79%) Accessibility
1 3 (1.79%) WCAG
2 1 (0.60%) COBIT
2 1 (0.60%) ISO/IEC 27001
2 1 (0.60%) NIST
2 1 (0.60%) QA
2 1 (0.60%) Sarbanes-Oxley
System Software
1 57 (33.93%) Docker
2 4 (2.38%) Active Directory
2 4 (2.38%) OpenAM
3 2 (1.19%) VMware Infrastructure
3 2 (1.19%) VMware NSX
3 2 (1.19%) vSphere
4 1 (0.60%) Ceph
4 1 (0.60%) Gluster
4 1 (0.60%) GlusterFS
Systems Management
1 79 (47.02%) Kubernetes
2 44 (26.19%) Terraform
3 12 (7.14%) Ansible
4 8 (4.76%) Single Sign-On
5 4 (2.38%) Puppet
5 4 (2.38%) Systems Management Server (SMS)
6 1 (0.60%) Grafana
6 1 (0.60%) Nagios
6 1 (0.60%) Progress Chef
6 1 (0.60%) Prometheus
Vendors
1 14 (8.33%) Microsoft
2 12 (7.14%) Sybase
3 11 (6.55%) Google
4 5 (2.98%) ForgeRock
4 5 (2.98%) Red Hat
5 4 (2.38%) Bloomberg
5 4 (2.38%) Databricks
5 4 (2.38%) Ping Identity
5 4 (2.38%) Reuters
6 3 (1.79%) Oracle
7 2 (1.19%) Dataiku
7 2 (1.19%) VMware
8 1 (0.60%) Confluent
8 1 (0.60%) HubSpot
8 1 (0.60%) Pega
8 1 (0.60%) StreamSets
8 1 (0.60%) Zoho