Period
to 23 October 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 23 October 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
23 Oct 2018
Same period 2017 Same period 2016
Rank 43 54 45
Rank change year-on-year +11 -9 -15
Contract jobs citing Open Source 79 37 31
As % of all contract IT jobs advertised in Croydon 6.51% 5.00% 5.70%
As % of the Processes & Methodologies category 7.15% 5.38% 6.25%
Number of daily rates quoted 49 22 22
Croydon median daily rate £525 £500 £450
Median daily rate % change year-on-year +5.00% +11.11% -
10th Percentile £435 £400 £388
90th Percentile £640 £579 £522
South London median daily rate £525 £500 £450
% change year-on-year +5.00% +11.11% -
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - - -

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 1,105 688 496
As % of all contract IT jobs advertised in Croydon 91.02% 92.97% 91.18%
Number of daily rates quoted 805 438 315
Croydon median daily rate £525 £500 £420
Median daily rate % change year-on-year +5.00% +19.05% -1.18%
10th Percentile £363 £325 £301
90th Percentile £638 £633 £563
South London median daily rate £525 £488 £425
% change year-on-year +7.69% +14.71% +13.33%
Number of hourly rates quoted 2 3 7
Croydon median hourly rate £35.00 £13.50 £27.00
Median hourly rate % change year-on-year +159.26% -50.00% -2.81%
South London median hourly rate £43.75 £47.50 £20.00
% change year-on-year -7.89% +137.50% -33.33%

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 23 October 2018.

Contractor daily rate histogram for Open Source in Croydon

For the 6 months to 23 October 2018, IT contractor jobs citing Open Source also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Croydon region with a requirement for Open Source.

1 57 (72.15%) Agile Software Development
2 56 (70.89%) Java
3 47 (59.49%) Jenkins
4 46 (58.23%) DevOps
5 44 (55.70%) Security Cleared
6 42 (53.16%) Docker
7 41 (51.90%) SC Cleared
8 39 (49.37%) Git (software)
9 37 (46.84%) Kubernetes
10 35 (44.30%) SonarQube
11 30 (37.97%) Amazon AWS
11 30 (37.97%) Continuous Integration
12 24 (30.38%) Test Automation
13 23 (29.11%) Task Automation
14 22 (27.85%) Spring
15 21 (26.58%) Maven
16 19 (24.05%) Groovy
17 18 (22.78%) Velocity
17 18 (22.78%) Microservices
17 18 (22.78%) Relational Database
17 18 (22.78%) Capacity Planning
17 18 (22.78%) Continuous Improvement
17 18 (22.78%) Problem-Solving
18 17 (21.52%) BDD
18 17 (21.52%) QA
19 16 (20.25%) Scrum
19 16 (20.25%) Web Services
19 16 (20.25%) TDD
19 16 (20.25%) Spring Boot
20 15 (18.99%) Amazon EC2

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 6 (7.59%) Elasticsearch
2 5 (6.33%) Apache Spark
3 2 (2.53%) nginx
3 2 (2.53%) Tomcat
4 1 (1.27%) Apache Pig
4 1 (1.27%) CMS
4 1 (1.27%) Confluence
4 1 (1.27%) JBoss
4 1 (1.27%) Oracle Service Bus
4 1 (1.27%) WebLogic
4 1 (1.27%) WildFly
Cloud Services
1 30 (37.97%) Amazon AWS
2 15 (18.99%) Amazon EC2
3 4 (5.06%) Cloud Computing
3 4 (5.06%) GitHub
4 2 (2.53%) Amazon S3
4 2 (2.53%) Microsoft Azure
4 2 (2.53%) Virtual Private Cloud
5 1 (1.27%) Amazon CloudWatch
5 1 (1.27%) Amazon ELB
5 1 (1.27%) AWS CloudTrail
5 1 (1.27%) IaaS
5 1 (1.27%) PaaS
5 1 (1.27%) Quay.io
5 1 (1.27%) Route 53
Communications & Networking
1 6 (7.59%) SSL
2 1 (1.27%) DNS
2 1 (1.27%) HTTP
2 1 (1.27%) HTTPS
2 1 (1.27%) ICMP
2 1 (1.27%) TCP/IP
2 1 (1.27%) VPN
Database & Business Intelligence
1 18 (22.78%) Relational Database
2 9 (11.39%) PostgreSQL
3 5 (6.33%) Hadoop
3 5 (6.33%) Neo4j
4 4 (5.06%) Spotfire
5 3 (3.80%) Data Warehouse
6 2 (2.53%) Amazon DynamoDB
6 2 (2.53%) Big Data
6 2 (2.53%) MySQL
6 2 (2.53%) NoSQL
7 1 (1.27%) Amazon RDS
7 1 (1.27%) Apache Hive
7 1 (1.27%) Data Mining
7 1 (1.27%) Flink
7 1 (1.27%) MongoDB
7 1 (1.27%) Oracle Database
7 1 (1.27%) RDBMS
7 1 (1.27%) Redis
Development Applications
1 47 (59.49%) Jenkins
2 39 (49.37%) Git (software)
3 35 (44.30%) SonarQube
4 21 (26.58%) Maven
5 15 (18.99%) JUnit
6 14 (17.72%) DbUnit
6 14 (17.72%) jMock
6 14 (17.72%) Mockito
7 9 (11.39%) GitLab
8 4 (5.06%) Artifactory
8 4 (5.06%) Cucumber
9 3 (3.80%) Selenium
9 3 (3.80%) TeamCity
9 3 (3.80%) Vagrant
9 3 (3.80%) WebDriver
10 2 (2.53%) Appium
10 2 (2.53%) JIRA
11 1 (1.27%) Gradle
11 1 (1.27%) Jasmine
11 1 (1.27%) Spock
General
1 5 (6.33%) Retail
2 1 (1.27%) Finance
2 1 (1.27%) Legal
Job Titles
1 40 (50.63%) Developer
2 36 (45.57%) Java Developer
3 18 (22.78%) SC Cleared Java Developer
4 17 (21.52%) Architect
5 8 (10.13%) AWS Architect
6 6 (7.59%) Build and Release Engineer
6 6 (7.59%) Build Engineer
6 6 (7.59%) Release Engineer
6 6 (7.59%) Technical Architect
7 5 (6.33%) Java Engineer
8 4 (5.06%) Data Scientist
8 4 (5.06%) Java Architect
8 4 (5.06%) Security Architect
9 3 (3.80%) DevOps Engineer
9 3 (3.80%) Integration Developer
9 3 (3.80%) J2EE Developer
9 3 (3.80%) Java Technical Architect
9 3 (3.80%) Java/J2EE Developer
9 3 (3.80%) Linux Engineer
9 3 (3.80%) Solutions Architect
Libraries, Frameworks & Software Standards
1 22 (27.85%) Spring
2 18 (22.78%) Velocity
3 16 (20.25%) Spring Boot
3 16 (20.25%) Web Services
4 15 (18.99%) SOAP
5 14 (17.72%) Apache Camel
5 14 (17.72%) J2EE
5 14 (17.72%) PowerMock
5 14 (17.72%) RESTful
6 7 (8.86%) YAML
7 5 (6.33%) Elastic Stack
7 5 (6.33%) Hibernate
7 5 (6.33%) LDAP
8 4 (5.06%) AngularJS
8 4 (5.06%) Natural Language Processing
8 4 (5.06%) Pandas
8 4 (5.06%) scikit-learn
9 3 (3.80%) Kafka
10 2 (2.53%) JSON
10 2 (2.53%) REST
Miscellaneous
1 5 (6.33%) NHS
2 4 (5.06%) Public Cloud
3 2 (2.53%) Management Information System
4 1 (1.27%) Analytical Skills
4 1 (1.27%) Cloud Native
4 1 (1.27%) Enterprise Software
4 1 (1.27%) Greenfield Project
4 1 (1.27%) Self-Motivation
4 1 (1.27%) User Experience
Operating Systems
1 10 (12.66%) Linux
2 6 (7.59%) Unix
3 2 (2.53%) CoreOS
3 2 (2.53%) VMS
4 1 (1.27%) Red Hat Enterprise Linux
Processes & Methodologies
1 57 (72.15%) Agile Software Development
2 46 (58.23%) DevOps
3 30 (37.97%) Continuous Integration
4 24 (30.38%) Test Automation
5 23 (29.11%) Task Automation
6 18 (22.78%) Capacity Planning
6 18 (22.78%) Continuous Improvement
6 18 (22.78%) Microservices
6 18 (22.78%) Problem-Solving
7 17 (21.52%) BDD
8 16 (20.25%) Scrum
8 16 (20.25%) TDD
9 15 (18.99%) E-Commerce
10 14 (17.72%) Kanban
10 14 (17.72%) Virtual Infrastructure
11 11 (13.92%) Configuration Management
12 8 (10.13%) Release Management
13 7 (8.86%) Deployment Automation
13 7 (8.86%) User Stories
14 6 (7.59%) Server Management
Programming Languages
1 56 (70.89%) Java
2 19 (24.05%) Groovy
3 9 (11.39%) Python
4 6 (7.59%) Scala
4 6 (7.59%) Shell Script
5 5 (6.33%) Bash Shell
5 5 (6.33%) SQL
6 4 (5.06%) Cypher
7 3 (3.80%) Go
7 3 (3.80%) Ruby
8 2 (2.53%) Java 8
Qualifications
1 44 (55.70%) Security Cleared
2 41 (51.90%) SC Cleared
3 3 (3.80%) DV Cleared
3 3 (3.80%) ISEB
3 3 (3.80%) ISTQB
4 2 (2.53%) AWS Certification
5 1 (1.27%) BPSS Clearance
5 1 (1.27%) Degree
5 1 (1.27%) ITIL Foundation Certificate
5 1 (1.27%) Master's Degree
Quality Assurance & Compliance
1 17 (21.52%) QA
2 4 (5.06%) PMO
3 1 (1.27%) GDPR
System Software
1 42 (53.16%) Docker
2 14 (17.72%) VMware Infrastructure
2 14 (17.72%) vSphere
3 2 (2.53%) Ceph
3 2 (2.53%) etcd
3 2 (2.53%) flannel
3 2 (2.53%) GlusterFS
3 2 (2.53%) SkyDNS
Systems Management
1 37 (46.84%) Kubernetes
2 10 (12.66%) Puppet
3 8 (10.13%) Terraform
4 6 (7.59%) Sysdig
5 5 (6.33%) Ansible
6 3 (3.80%) HAProxy
6 3 (3.80%) Host Intrusion Detection System
6 3 (3.80%) Network Intrusion Detection System
6 3 (3.80%) Prometheus
7 2 (2.53%) Graphite
7 2 (2.53%) Opscode Chef
7 2 (2.53%) rkt
8 1 (1.27%) Ambari
8 1 (1.27%) Consul
8 1 (1.27%) Hadoop YARN
Vendors
1 14 (17.72%) VMware
2 6 (7.59%) CA
3 1 (1.27%) AlienVault
3 1 (1.27%) Microsoft
3 1 (1.27%) Oracle
3 1 (1.27%) SaltStack
3 1 (1.27%) ServiceNow