Period
to 21 January 2018

The following table provides summary statistics for contract job vacancies advertised in Croydon with a requirement for Open Source skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Open Source over the 6 months to 21 January 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Open Source
South London > Croydon
6 months to
21 Jan 2018
Same period 2017 Same period 2016
Rank 46 52 28
Rank change year-on-year +6 -24 -4
Contract jobs citing Open Source 54 20 21
As % of all contract IT jobs advertised in Croydon 5.27% 4.02% 5.26%
As % of the Processes & Methodologies category 5.73% 4.41% 6.09%
Number of daily rates quoted 37 14 9
Croydon median daily rate £568 £450 £450
Median daily rate % change year-on-year +26.11% - -33.82%
10th Percentile £425 £419 £390
90th Percentile £688 £516 £490
South London median daily rate £550 £450 £413
% change year-on-year +22.22% +9.09% +3.13%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - £47.00 -

Open Source is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Croydon with a requirement for process or methodology skills.

All Process and Methodology Skills
Croydon
Contract vacancies with a requirement for process or methodology skills 942 454 345
As % of all contract IT jobs advertised in Croydon 91.99% 91.35% 86.47%
Number of daily rates quoted 645 275 255
Croydon median daily rate £500 £438 £425
Median daily rate % change year-on-year +14.29% +2.94% -0.58%
10th Percentile £356 £311 £304
90th Percentile £675 £575 £595
South London median daily rate £500 £425 £400
% change year-on-year +17.65% +6.25% -
Number of hourly rates quoted 1 1 2
Croydon median hourly rate £13.50 £43.50 £12.50
Median hourly rate % change year-on-year -68.97% +248.00% -16.67%
10th Percentile £12.75 £41.75 £11.25
90th Percentile £14.25 £45.25 £13.75
South London median hourly rate £47.50 £32.50 £21.00
% change year-on-year +46.15% +54.76% +33.16%

Open Source
Job Vacancy Trend in Croydon

Job postings citing Open Source as a percentage of all IT jobs advertised in Croydon.

Job vacancy trend for Open Source in Croydon

Open Source
Contractor Daily Rate Trend in Croydon

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Open Source in Croydon.

Contractor daily rate trend for Open Source in Croydon

Open Source
Contractor Daily Rate Histogram in Croydon

The daily rate distribution of IT jobs citing Open Source in Croydon over the 6 months to 21 January 2018.

Contractor daily rate histogram for Open Source in Croydon

For the 6 months to 21 January 2018, IT contractor jobs citing Open Source also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Croydon region with a requirement for Open Source.

1 34 (62.96%) Agile Software Development
2 32 (59.26%) Security Cleared
3 28 (51.85%) SC Cleared
3 28 (51.85%) DevOps
4 26 (48.15%) Amazon AWS
5 25 (46.30%) Java
6 22 (40.74%) Docker
7 19 (35.19%) Puppet
8 16 (29.63%) Ansible
8 16 (29.63%) Linux
9 14 (25.93%) Web Services
9 14 (25.93%) TDD
9 14 (25.93%) Opscode Chef
9 14 (25.93%) Analytics
10 12 (22.22%) Scrum
10 12 (22.22%) Data Analytics
11 11 (20.37%) BDD
11 11 (20.37%) Visualisation
11 11 (20.37%) Amazon EC2
11 11 (20.37%) PostgreSQL
12 10 (18.52%) Big Data
12 10 (18.52%) Jenkins
12 10 (18.52%) Elasticsearch
12 10 (18.52%) SaltStack
12 10 (18.52%) Kubernetes
13 9 (16.67%) Microservices
13 9 (16.67%) Hadoop
13 9 (16.67%) Continuous Integration
13 9 (16.67%) Test Automation
14 8 (14.81%) Git (software)

Open Source
Co-occurring IT Skills in Croydon by Category

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

Application Platforms
1 10 (18.52%) Elasticsearch
2 7 (12.96%) Confluence
3 5 (9.26%) JBoss
4 4 (7.41%) Apache ServiceMix
5 3 (5.56%) Tomcat
6 2 (3.70%) Apache
6 2 (3.70%) OpenStack
6 2 (3.70%) WebLogic
7 1 (1.85%) Apache Spark
7 1 (1.85%) WildFly
Cloud Services
1 26 (48.15%) Amazon AWS
2 11 (20.37%) Amazon EC2
3 8 (14.81%) Amazon CloudWatch
3 8 (14.81%) Amazon Kinesis
3 8 (14.81%) AWS CloudTrail
3 8 (14.81%) Virtual Private Cloud
4 2 (3.70%) GitHub
4 2 (3.70%) Microsoft Azure
5 1 (1.85%) Quay.io
Communications & Networking
1 2 (3.70%) DNS
2 1 (1.85%) DHCP
2 1 (1.85%) Firewall
2 1 (1.85%) FTP
2 1 (1.85%) HTTP
2 1 (1.85%) IPsec
2 1 (1.85%) OpenLDAP
2 1 (1.85%) SAN
2 1 (1.85%) SSL
2 1 (1.85%) TCP/IP
Database & Business Intelligence
1 11 (20.37%) PostgreSQL
2 10 (18.52%) Big Data
3 9 (16.67%) Hadoop
4 8 (14.81%) Amazon Redshift
4 8 (14.81%) Data Mining
5 6 (11.11%) MongoDB
6 4 (7.41%) NoSQL
6 4 (7.41%) Relational Database
7 3 (5.56%) HBase
8 2 (3.70%) Amazon DynamoDB
8 2 (3.70%) Data Warehouse
8 2 (3.70%) DataStax
8 2 (3.70%) Neo4j
8 2 (3.70%) RDBMS
9 1 (1.85%) Couchbase
9 1 (1.85%) MySQL
9 1 (1.85%) Redis
Development Applications
1 10 (18.52%) Jenkins
2 8 (14.81%) Git (software)
3 7 (12.96%) JIRA
3 7 (12.96%) JUnit
3 7 (12.96%) Selenium
4 5 (9.26%) Maven
4 5 (9.26%) Mockito
5 4 (7.41%) Cucumber
6 3 (5.56%) DbUnit
6 3 (5.56%) jMock
6 3 (5.56%) Travis CI
6 3 (5.56%) Vagrant
7 2 (3.70%) Artifactory
7 2 (3.70%) Capybara
7 2 (3.70%) Codeship
7 2 (3.70%) Gradle
7 2 (3.70%) Sonatype Nexus
7 2 (3.70%) TestNG
8 1 (1.85%) Hudson
8 1 (1.85%) Jasmine
General
1 3 (5.56%) Marketing
2 2 (3.70%) Electronics
2 2 (3.70%) Finance
2 2 (3.70%) Legal
2 2 (3.70%) Manufacturing
2 2 (3.70%) Retail
2 2 (3.70%) Telecoms
3 1 (1.85%) Banking
Job Titles
1 13 (24.07%) Architect
1 13 (24.07%) Developer
2 10 (18.52%) Consultant
2 10 (18.52%) DevOps Consultant
3 9 (16.67%) Java Developer
4 8 (14.81%) AWS Architect
5 5 (9.26%) AWS Solutions Architect
5 5 (9.26%) DevOps Engineer
5 5 (9.26%) Solutions Architect
6 4 (7.41%) Technical Architect
7 3 (5.56%) Developer in Test
7 3 (5.56%) Java Architect
7 3 (5.56%) Technical Leader
8 2 (3.70%) Automation Tester
8 2 (3.70%) Integration Architect
8 2 (3.70%) Java Developer in Test
8 2 (3.70%) Lead DevOps
8 2 (3.70%) Product Manager
8 2 (3.70%) SC Cleared Java Developer
8 2 (3.70%) Tester
Libraries, Frameworks & Software Standards
1 14 (25.93%) Web Services
2 8 (14.81%) Apache Camel
2 8 (14.81%) RESTful
3 7 (12.96%) Kafka
3 7 (12.96%) Spring
4 6 (11.11%) AngularJS
5 5 (9.26%) Hibernate
5 5 (9.26%) HTML
5 5 (9.26%) J2EE
6 4 (7.41%) Node.js
6 4 (7.41%) REST
6 4 (7.41%) SOAP
7 3 (5.56%) ActiveMQ
7 3 (5.56%) Elastic Stack
7 3 (5.56%) JMS
7 3 (5.56%) LAPP Stack
7 3 (5.56%) PowerMock
7 3 (5.56%) Spring Boot
8 2 (3.70%) CSS
8 2 (3.70%) Guice
Miscellaneous
1 7 (12.96%) Cyberthreat
2 6 (11.11%) Analytical Skills
3 3 (5.56%) Enterprise Software
4 2 (3.70%) NHS
5 1 (1.85%) Data Centre
5 1 (1.85%) Greenfield Project
5 1 (1.85%) Public Cloud
Operating Systems
1 16 (29.63%) Linux
2 3 (5.56%) CoreOS
3 2 (3.70%) AIX
3 2 (3.70%) CentOS
3 2 (3.70%) Red Hat Enterprise Linux
3 2 (3.70%) Unix
4 1 (1.85%) Ubuntu
4 1 (1.85%) Windows
4 1 (1.85%) Windows Server
Processes & Methodologies
1 34 (62.96%) Agile Software Development
2 28 (51.85%) DevOps
3 14 (25.93%) Analytics
3 14 (25.93%) TDD
4 12 (22.22%) Data Analytics
4 12 (22.22%) Scrum
5 11 (20.37%) BDD
5 11 (20.37%) Visualisation
6 9 (16.67%) Continuous Integration
6 9 (16.67%) Microservices
6 9 (16.67%) Test Automation
7 8 (14.81%) Big Data Analytics
7 8 (14.81%) Protective Monitoring
7 8 (14.81%) SIEM
8 6 (11.11%) Business Intelligence
8 6 (11.11%) Configuration Management
8 6 (11.11%) Kanban
9 5 (9.26%) Continuous Delivery
9 5 (9.26%) E-Commerce
10 4 (7.41%) Domain-Driven Design
Programming Languages
1 25 (46.30%) Java
2 6 (11.11%) JavaScript
2 6 (11.11%) Python
3 4 (7.41%) Groovy
4 3 (5.56%) Go
4 3 (5.56%) Ruby
4 3 (5.56%) Scala
5 2 (3.70%) Bash Shell
5 2 (3.70%) Gremlin
6 1 (1.85%) C
6 1 (1.85%) C++
6 1 (1.85%) SQL
Qualifications
1 32 (59.26%) Security Cleared
2 28 (51.85%) SC Cleared
3 3 (5.56%) Degree
3 3 (5.56%) DV Cleared
4 1 (1.85%) BPSS Clearance
Quality Assurance & Compliance
1 5 (9.26%) QA
2 2 (3.70%) PMO
3 1 (1.85%) Disclosure Scotland
System Software
1 22 (40.74%) Docker
2 4 (7.41%) VMware Infrastructure
3 3 (5.56%) vSphere
4 2 (3.70%) HDFS
5 1 (1.85%) Apache ZooKeeper
5 1 (1.85%) etcd
5 1 (1.85%) flannel
5 1 (1.85%) iptables
5 1 (1.85%) KVM
5 1 (1.85%) Virtual Machines
5 1 (1.85%) VMware ESXi
Systems Management
1 19 (35.19%) Puppet
2 16 (29.63%) Ansible
3 14 (25.93%) Opscode Chef
4 10 (18.52%) Kubernetes
5 6 (11.11%) Terraform
6 4 (7.41%) ZABBIX
7 2 (3.70%) Ambari
7 2 (3.70%) Host Intrusion Detection System
7 2 (3.70%) Network Intrusion Detection System
8 1 (1.85%) Kibana
8 1 (1.85%) logstash
8 1 (1.85%) Prometheus
8 1 (1.85%) rkt
8 1 (1.85%) Sysdig
8 1 (1.85%) yum
Vendors
1 10 (18.52%) SaltStack
2 8 (14.81%) AlienVault
3 6 (11.11%) VMware
4 3 (5.56%) Hortonworks
5 2 (3.70%) Google
5 2 (3.70%) Oracle
5 2 (3.70%) SAP
5 2 (3.70%) Splunk
6 1 (1.85%) Greenplum
6 1 (1.85%) IBM
6 1 (1.85%) ServiceNow