Period
to 18 April 2021

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for YAML skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited YAML over the 6 months to 18 April 2021 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.

YAML
England > London
6 months to
18 Apr 2021
Same period 2020 Same period 2019
Rank 357 414 548
Rank change year-on-year +57 +134 +41
Contract jobs citing YAML 97 38 62
As % of all contract jobs advertised in London 0.44% 0.16% 0.15%
As % of the Libraries, Frameworks & Software Standards category 1.22% 0.43% 0.40%
Number of daily rates quoted 65 20 42
10th Percentile £390 £420 £425
25th Percentile £463 £522 £463
Median daily rate (50th Percentile) £525 £594 £500
Median % change year-on-year -11.58% +18.75% -6.54%
75th Percentile £638 £625 £570
90th Percentile £765 " £575
England median daily rate £500 £519 £525
% change year-on-year -3.61% -1.19% +3.19%

YAML is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 7,922 8,829 15,657
As % of all contract IT jobs advertised in London 36.03% 37.44% 36.97%
Number of daily rates quoted 5,948 6,571 11,860
10th Percentile £375 £375 £370
25th Percentile £438 £450 £442
Median daily rate (50th Percentile) £525 £525 £525
75th Percentile £625 £625 £600
90th Percentile £700 £700 £675
England median daily rate £500 £500 £500
Number of hourly rates quoted 38 49 67
10th Percentile £20.13 £24.50 £23.37
25th Percentile £33.44 £44.43 £27.63
Median hourly rate £46.96 £54.00 £43.92
Median % change year-on-year -13.04% +22.96% +11.77%
75th Percentile £62.50 £69.50 £47.83
90th Percentile £68.00 £78.75 £53.75
England median hourly rate £45.00 £46.00 £44.18
% change year-on-year -2.17% +4.12% +7.76%

YAML
Job Vacancy Trend in London

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

Job vacancy trend for YAML in London

YAML
Contractor Daily Rate Trend in London

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

Daily rate trend for YAML in London

YAML
Daily Rate Histogram in London

Daily rate distribution for jobs citing YAML in London over the 6 months to 18 April 2021.

Daily rate histogram for YAML in London

YAML
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 YAML within the London region over the 6 months to 18 April 2021. 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
Job
Vacancies
Central London +41 5 £750 +25.00% 6
East London - 2 £688 -
YAML
England

For the 6 months to 18 April 2021, IT contractor jobs citing YAML 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 London region with a requirement for YAML.

1 64 (65.98%) DevOps
2 52 (53.61%) Ansible
3 50 (51.55%) Azure
4 44 (45.36%) JSON
5 41 (42.27%) Docker
6 39 (40.21%) Kubernetes
7 37 (38.14%) Linux
8 36 (37.11%) PowerShell
8 36 (37.11%) Terraform
9 32 (32.99%) Python
10 27 (27.84%) Finance
11 26 (26.80%) Git (software)
12 24 (24.74%) Microservices
12 24 (24.74%) Infrastructure as Code
13 23 (23.71%) GitHub
13 23 (23.71%) Agile Software Development
13 23 (23.71%) Red Hat
14 21 (21.65%) Java
14 21 (21.65%) Jenkins
14 21 (21.65%) Bash Shell
15 19 (19.59%) AWS
15 19 (19.59%) Continuous Integration
16 17 (17.53%) Infrastructure Automation
16 17 (17.53%) Configuration Management
16 17 (17.53%) Microsoft
16 17 (17.53%) Windows
17 16 (16.49%) .NET
17 16 (16.49%) PaaS
17 16 (16.49%) GitLab
18 15 (15.46%) SC Cleared

YAML
Co-occurring IT Skills in London 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 9 (9.28%) Confluence
2 7 (7.22%) CMS
3 4 (4.12%) Tomcat
4 3 (3.09%) Elasticsearch
4 3 (3.09%) Headless CMS
5 2 (2.06%) Apache Spark
5 2 (2.06%) OpenStack
6 1 (1.03%) Apache
6 1 (1.03%) DNN
Applications
1 4 (4.12%) MS Visio
Cloud Services
1 50 (51.55%) Azure
2 23 (23.71%) GitHub
3 19 (19.59%) AWS
4 16 (16.49%) PaaS
5 10 (10.31%) GCP
5 10 (10.31%) IaaS
5 10 (10.31%) OpenShift
6 9 (9.28%) Serverless
7 5 (5.15%) Amazon CloudWatch
7 5 (5.15%) Apigee
8 4 (4.12%) AWS CloudFormation
8 4 (4.12%) AWS Lambda
8 4 (4.12%) Virtual Private Cloud
9 3 (3.09%) Amazon ELB
9 3 (3.09%) Amazon S3
9 3 (3.09%) AWS Direct Connect
9 3 (3.09%) Azure Active Directory
9 3 (3.09%) npm
9 3 (3.09%) Yarn
10 2 (2.06%) Amazon EC2
Communications & Networking
1 15 (15.46%) Firewall
2 4 (4.12%) Network Security
2 4 (4.12%) TCP/IP
3 3 (3.09%) HTTP
4 2 (2.06%) 3GPP
4 2 (2.06%) BGP
4 2 (2.06%) Cisco ASA
4 2 (2.06%) Cisco Nexus
4 2 (2.06%) DNS
4 2 (2.06%) F5 BIG-IP GTM
4 2 (2.06%) F5 BIG-IP LTM
4 2 (2.06%) FTP
4 2 (2.06%) IMAP
4 2 (2.06%) LAN
4 2 (2.06%) Multicast
4 2 (2.06%) OSPF
4 2 (2.06%) SGSN
4 2 (2.06%) SMTP
4 2 (2.06%) WAN
4 2 (2.06%) Wireless
Database & Business Intelligence
1 8 (8.25%) Data Lake
2 6 (6.19%) Big Data
2 6 (6.19%) PostgreSQL
3 5 (5.15%) Azure SQL Database
3 5 (5.15%) BigQuery
3 5 (5.15%) Bigtable
4 4 (4.12%) Cloud Spanner
4 4 (4.12%) Hadoop
4 4 (4.12%) MongoDB
5 3 (3.09%) Spark SQL
6 2 (2.06%) Neo4j
6 2 (2.06%) Parquet
6 2 (2.06%) Power BI
6 2 (2.06%) Redis
7 1 (1.03%) Amazon DynamoDB
7 1 (1.03%) Amazon RDS
7 1 (1.03%) Apache Cassandra
7 1 (1.03%) Apache Hive
7 1 (1.03%) MySQL
7 1 (1.03%) NoSQL
Development Applications
1 26 (26.80%) Git (software)
2 21 (21.65%) Jenkins
3 16 (16.49%) GitLab
4 11 (11.34%) JIRA
5 8 (8.25%) Bitbucket
5 8 (8.25%) Sonatype Nexus
5 8 (8.25%) Team Foundation Server
5 8 (8.25%) Visual Studio Team System
6 7 (7.22%) Artifactory
6 7 (7.22%) Maven
6 7 (7.22%) SonarQube
7 6 (6.19%) Vagrant
7 6 (6.19%) Visual Studio
8 5 (5.15%) git-flow
9 4 (4.12%) Atlassian Bamboo
9 4 (4.12%) TeamCity
10 3 (3.09%) Babel
10 3 (3.09%) Cypress.io
10 3 (3.09%) PostCSS
10 3 (3.09%) webpack
General
1 27 (27.84%) Finance
2 14 (14.43%) Banking
3 6 (6.19%) Investment Banking
4 5 (5.15%) Financial Institution
5 2 (2.06%) Public Sector
5 2 (2.06%) Telecoms
6 1 (1.03%) Aerospace
6 1 (1.03%) Front Office
6 1 (1.03%) Law
Job Titles
1 37 (38.14%) DevOps Engineer
2 18 (18.56%) Architect
2 18 (18.56%) Azure Engineer
3 13 (13.40%) Cloud Engineer
4 12 (12.37%) Azure DevOps Engineer
5 10 (10.31%) Administrator
5 10 (10.31%) Azure DevOps
5 10 (10.31%) Linux Administrator
5 10 (10.31%) Linux Systems Administrator
6 8 (8.25%) Developer
7 6 (6.19%) DevSecOps Architect
7 6 (6.19%) Linux Engineer
7 6 (6.19%) Linux Systems Engineer
8 5 (5.15%) AWS Engineer
8 5 (5.15%) Business Analyst
8 5 (5.15%) Infrastructure Engineer
8 5 (5.15%) Kubernetes Engineer
8 5 (5.15%) React Developer
8 5 (5.15%) Senior DevOps
8 5 (5.15%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 44 (45.36%) JSON
2 16 (16.49%) .NET
3 9 (9.28%) .NET Core
4 7 (7.22%) CSS
4 7 (7.22%) GatsbyJS
4 7 (7.22%) GraphQL
4 7 (7.22%) HTML
4 7 (7.22%) Kafka
4 7 (7.22%) XML
5 5 (5.15%) Node.js
5 5 (5.15%) React
5 5 (5.15%) Swagger
6 3 (3.09%) AngularJS
6 3 (3.09%) Elastic Stack
6 3 (3.09%) jBPM
6 3 (3.09%) Jest
6 3 (3.09%) Vue.js
6 3 (3.09%) Web Services
7 2 (2.06%) Spring
7 2 (2.06%) XSD
Miscellaneous
1 8 (8.25%) Public Cloud
2 7 (7.22%) Derivative
2 7 (7.22%) iPad
2 7 (7.22%) Linux Command Line
3 4 (4.12%) Data Centre
3 4 (4.12%) User Experience
4 3 (3.09%) Data Structures
4 3 (3.09%) Equities
4 3 (3.09%) Greenfield Project
5 1 (1.03%) Algorithms
5 1 (1.03%) Analytical Skills
5 1 (1.03%) Augmented Reality
5 1 (1.03%) Cloud Native
5 1 (1.03%) CMDB
5 1 (1.03%) Enterprise Cloud
5 1 (1.03%) Enterprise Software
5 1 (1.03%) Market Risk
Operating Systems
1 37 (38.14%) Linux
2 17 (17.53%) Windows
3 14 (14.43%) Red Hat Enterprise Linux
4 8 (8.25%) CentOS
4 8 (8.25%) SUSE Linux Enterprise Server
5 7 (7.22%) Unix
6 3 (3.09%) CoreOS
6 3 (3.09%) Debian
6 3 (3.09%) VMS
7 1 (1.03%) Android
7 1 (1.03%) Windows Server
Processes & Methodologies
1 64 (65.98%) DevOps
2 24 (24.74%) Infrastructure as Code
2 24 (24.74%) Microservices
3 23 (23.71%) Agile Software Development
4 19 (19.59%) Continuous Integration
5 17 (17.53%) Configuration Management
5 17 (17.53%) Infrastructure Automation
6 13 (13.40%) Deployment Automation
7 11 (11.34%) Test Automation
8 10 (10.31%) Change Management
9 9 (9.28%) Cybersecurity
9 9 (9.28%) DevSecOps
9 9 (9.28%) Digital Transformation Programme
10 8 (8.25%) API Design
10 8 (8.25%) Application Packaging
10 8 (8.25%) Continuous Deployment
10 8 (8.25%) GAP Analysis
10 8 (8.25%) Server Hardening
10 8 (8.25%) Service Management
10 8 (8.25%) Software Engineering
Programming Languages
1 36 (37.11%) PowerShell
2 32 (32.99%) Python
3 21 (21.65%) Bash Shell
3 21 (21.65%) Java
4 11 (11.34%) C#
5 10 (10.31%) JavaScript
6 9 (9.28%) SQL
7 7 (7.22%) Perl
7 7 (7.22%) Shell Script
8 5 (5.15%) C++
9 2 (2.06%) Groovy
9 2 (2.06%) Ruby
9 2 (2.06%) Scala
10 1 (1.03%) Cypher
10 1 (1.03%) Go
Qualifications
1 15 (15.46%) SC Cleared
1 15 (15.46%) Security Cleared
2 3 (3.09%) AWS Certification
2 3 (3.09%) Degree
3 2 (2.06%) CCIE
3 2 (2.06%) Cisco Certification
3 2 (2.06%) Master's Degree
4 1 (1.03%) CCDE
4 1 (1.03%) Computer Science Degree
Quality Assurance & Compliance
1 4 (4.12%) QA
2 2 (2.06%) OASIS TOSCA
System Software
1 41 (42.27%) Docker
2 8 (8.25%) iptables
3 5 (5.15%) LXC
4 4 (4.12%) VMware Infrastructure
5 3 (3.09%) Active Directory
6 2 (2.06%) KVM
6 2 (2.06%) Virtual Machines
6 2 (2.06%) VMware ESXi
Systems Management
1 52 (53.61%) Ansible
2 39 (40.21%) Kubernetes
3 36 (37.11%) Terraform
4 13 (13.40%) Puppet
5 12 (12.37%) Grafana
6 11 (11.34%) Opscode Chef
7 9 (9.28%) Prometheus
8 6 (6.19%) Docker Swarm
9 5 (5.15%) Packer
10 4 (4.12%) Salt
11 2 (2.06%) Cloudify
11 2 (2.06%) Istio
11 2 (2.06%) Juju
12 1 (1.03%) BladeLogic
12 1 (1.03%) Rancher
Vendors
1 23 (23.71%) Red Hat
2 17 (17.53%) Microsoft
3 15 (15.46%) Google
4 12 (12.37%) Cisco
5 9 (9.28%) Splunk
5 9 (9.28%) VMware
6 8 (8.25%) Remedy
6 8 (8.25%) SaltStack
7 7 (7.22%) Atlassian
8 5 (5.15%) Confluent
9 4 (4.12%) CheckPoint
9 4 (4.12%) Veracode
10 3 (3.09%) ServiceNow
10 3 (3.09%) SolarWinds
11 2 (2.06%) Arista
11 2 (2.06%) Ericsson
11 2 (2.06%) F5
11 2 (2.06%) Fortinet
11 2 (2.06%) Juniper
11 2 (2.06%) New Relic