Period
to

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for JPA skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JPA over the 6 months to 23 May 2022 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.

Java Persistence API (JPA)
England > London
6 months to
23 May 2022
Same period 2021 Same period 2020
Rank 442 408 383
Rank change year-on-year -34 -25 +122
Contract jobs citing JPA 135 64 50
As % of all contract jobs advertised in London 0.35% 0.26% 0.25%
As % of the Libraries, Frameworks & Software Standards category 1.13% 0.72% 0.67%
Number of daily rates quoted 108 38 34
10th Percentile £388 £387 £488
25th Percentile £413 £406 £500
Median daily rate (50th Percentile) £475 £500 £556
Median % change year-on-year -5.00% -10.11% +15.89%
75th Percentile £604 - £600
90th Percentile £691 £588 £650
England median daily rate £480 £500 £525
% change year-on-year -4.00% -4.76% +10.53%

JPA 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 11,903 8,850 7,517
As % of all contract IT jobs advertised in London 31.10% 36.45% 37.81%
Number of daily rates quoted 9,251 6,621 5,599
10th Percentile £425 £381 £375
25th Percentile £506 £450 £450
Median daily rate (50th Percentile) £600 £525 £525
Median % change year-on-year +14.29% - -
75th Percentile £711 £638 £625
90th Percentile £800 £713 £700
England median daily rate £574 £500 £500
% change year-on-year +14.80% - -
Number of hourly rates quoted 63 33 33
10th Percentile £27.25 £19.39 £23.80
25th Percentile £35.00 £36.75 £31.25
Median hourly rate £46.00 £50.00 £48.85
Median % change year-on-year -8.00% +2.35% +8.66%
75th Percentile £66.13 £65.00 £63.00
90th Percentile £75.75 £68.00 £68.71
England median hourly rate £50.25 £47.00 £46.42
% change year-on-year +6.91% +1.26% +3.24%

JPA
Job Vacancy Trend in London

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

Job vacancy trend for JPA in London

JPA
Contractor Daily Rate Trend in London

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

Daily rate trend for JPA in London

JPA
Daily Rate Histogram in London

Daily rate distribution for jobs citing JPA in London over the 6 months to 23 May 2022.

Daily rate histogram for JPA in London

JPA
Contractor Hourly Rate Trend in London

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

Hourly rate trend for JPA in London

JPA
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 JPA within the London region over the 6 months to 23 May 2022. 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 -29 5 £748 - 5
South London -18 2 £625 -
JPA
England

For the 6 months to 23 May 2022, IT contractor jobs citing JPA 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 JPA.

1 130 (96.30%) Java
2 106 (78.52%) Spring
3 104 (77.04%) Hibernate
4 83 (61.48%) Agile
5 74 (54.81%) Microservices
6 64 (47.41%) Git (software)
7 55 (40.74%) Spring Boot
8 51 (37.78%) Maven
9 48 (35.56%) Oracle
10 46 (34.07%) DevOps
10 46 (34.07%) CI/CD
11 45 (33.33%) JavaScript
11 45 (33.33%) TDD
12 42 (31.11%) SQL
13 41 (30.37%) RESTful
13 41 (30.37%) GitLab
14 39 (28.89%) Jenkins
15 38 (28.15%) REST
16 35 (25.93%) JMS
17 34 (25.19%) JUnit
18 32 (23.70%) Cucumber
18 32 (23.70%) Full Stack Development
18 32 (23.70%) Social Skills
19 31 (22.96%) Finance
20 30 (22.22%) Confluence
20 30 (22.22%) Test Automation
20 30 (22.22%) JIRA
21 28 (20.74%) Security Cleared
21 28 (20.74%) WireMock
22 27 (20.00%) SC Cleared

JPA
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 30 (22.22%) Confluence
2 18 (13.33%) JBoss
3 9 (6.67%) Camunda
4 7 (5.19%) Tomcat
5 4 (2.96%) Apache Solr
5 4 (2.96%) Elasticsearch
5 4 (2.96%) IIS
5 4 (2.96%) WildFly
6 3 (2.22%) Alfresco
6 3 (2.22%) nginx
6 3 (2.22%) Oracle SOA Suite
7 2 (1.48%) Apache
7 2 (1.48%) Oracle Coherence
8 1 (0.74%) Cloud Foundry
8 1 (0.74%) Jetty
Cloud Services
1 25 (18.52%) Azure
2 24 (17.78%) AWS
3 12 (8.89%) AWS Lambda
4 8 (5.93%) OpenShift
5 7 (5.19%) Amazon SQS
6 6 (4.44%) IaaS
7 5 (3.70%) Amazon EC2
7 5 (3.70%) Apigee
7 5 (3.70%) Cloud Computing
7 5 (3.70%) GitHub
8 4 (2.96%) Serverless
9 3 (2.22%) Amazon CloudWatch
9 3 (2.22%) Amazon S3
9 3 (2.22%) Azure Service Bus
9 3 (2.22%) GCP
9 3 (2.22%) PaaS
10 2 (1.48%) AWS KMS
11 1 (0.74%) Amazon ECS
11 1 (0.74%) Amazon EKS
11 1 (0.74%) Power Platform
Communications & Networking
1 2 (1.48%) Firewall
2 1 (0.74%) HTTP
2 1 (0.74%) Internet
2 1 (0.74%) Intranet
2 1 (0.74%) SSL
2 1 (0.74%) TCP/IP
Database & Business Intelligence
1 21 (15.56%) PostgreSQL
1 21 (15.56%) SQL Server
2 17 (12.59%) Relational Database
3 16 (11.85%) MongoDB
4 15 (11.11%) NoSQL
5 11 (8.15%) SQLPlus
6 9 (6.67%) Oracle Database
7 8 (5.93%) Hazelcast
7 8 (5.93%) Redis
8 7 (5.19%) MySQL
9 6 (4.44%) Amazon RDS
9 6 (4.44%) RDBMS
10 5 (3.70%) Amazon DynamoDB
11 3 (2.22%) Apache Cassandra
12 2 (1.48%) Cloudant
12 2 (1.48%) Oracle Database 12c
13 1 (0.74%) Oracle Database 11g
Development Applications
1 64 (47.41%) Git (software)
2 51 (37.78%) Maven
3 41 (30.37%) GitLab
4 39 (28.89%) Jenkins
5 34 (25.19%) JUnit
6 32 (23.70%) Cucumber
7 30 (22.22%) JIRA
8 21 (15.56%) Mockito
8 21 (15.56%) REST Assured
8 21 (15.56%) WebDriver
9 17 (12.59%) IntelliJ
10 15 (11.11%) Gradle
10 15 (11.11%) Subversion
11 10 (7.41%) Concordion
11 10 (7.41%) JBehave
12 9 (6.67%) Eclipse
12 9 (6.67%) Gerrit
13 8 (5.93%) JHipster
14 6 (4.44%) Mercurial
14 6 (4.44%) SonarQube
General
1 32 (23.70%) Social Skills
2 31 (22.96%) Finance
3 11 (8.15%) Banking
4 9 (6.67%) Public Sector
5 7 (5.19%) Billing
6 6 (4.44%) Investment Banking
7 4 (2.96%) Retail
8 3 (2.22%) Analytical Skills
9 2 (1.48%) Legal
10 1 (0.74%) Advertising
10 1 (0.74%) Financial Institution
10 1 (0.74%) Pharmaceutical
Job Titles
1 122 (90.37%) Developer
2 84 (62.22%) Java Developer
3 29 (21.48%) Senior Developer
4 23 (17.04%) Software Developer
5 21 (15.56%) Developer in Test
6 13 (9.63%) Full Stack Developer
6 13 (9.63%) Senior Java Developer
7 10 (7.41%) Senior Software Developer
8 9 (6.67%) Backend Developer
9 7 (5.19%) Lead Developer
10 6 (4.44%) Agile Developer
10 6 (4.44%) Agile Java Developer
11 5 (3.70%) Lead Java Developer
11 5 (3.70%) Senior Backend Developer
12 3 (2.22%) AWS Developer
12 3 (2.22%) Java Developer - Fintech
12 3 (2.22%) Senior Full Stack Developer
13 2 (1.48%) E-Commerce Developer
13 2 (1.48%) Linux Systems Engineer
13 2 (1.48%) SC Cleared Java Developer
Libraries, Frameworks & Software Standards
1 106 (78.52%) Spring
2 104 (77.04%) Hibernate
3 55 (40.74%) Spring Boot
4 41 (30.37%) RESTful
5 38 (28.15%) REST
6 35 (25.93%) JMS
7 28 (20.74%) WireMock
8 24 (17.78%) SOAP
9 23 (17.04%) Web Services
9 23 (17.04%) XML
10 21 (15.56%) Spring Security
11 20 (14.81%) J2EE
12 19 (14.07%) AngularJS
12 19 (14.07%) Java EE
13 18 (13.33%) JDBC
14 15 (11.11%) JSF
14 15 (11.11%) JSON
14 15 (11.11%) React
15 14 (10.37%) Vaadin
16 12 (8.89%) HTML
Miscellaneous
1 10 (7.41%) Management Information System
2 7 (5.19%) Reinsurance
3 5 (3.70%) Algorithms
3 5 (3.70%) Cloud Native
3 5 (3.70%) Cyberthreat
3 5 (3.70%) Enterprise Software
4 3 (2.22%) Data Structures
4 3 (2.22%) Greenfield Project
4 3 (2.22%) NHS
4 3 (2.22%) PKI
4 3 (2.22%) Public Cloud
4 3 (2.22%) Self-Motivation
4 3 (2.22%) User Experience
5 2 (1.48%) Foreign Exchange (FX)
5 2 (1.48%) Legacy Code
6 1 (0.74%) DataPower
6 1 (0.74%) Fixed Income
6 1 (0.74%) Hedge funds
6 1 (0.74%) Social Media
6 1 (0.74%) Spread Betting
Operating Systems
1 12 (8.89%) Linux
2 5 (3.70%) Windows
3 4 (2.96%) Unix
4 3 (2.22%) Red Hat Enterprise Linux
4 3 (2.22%) Windows Server
5 2 (1.48%) Windows Server 2016
6 1 (0.74%) AIX
6 1 (0.74%) Mac OS
Processes & Methodologies
1 83 (61.48%) Agile
2 74 (54.81%) Microservices
3 46 (34.07%) CI/CD
3 46 (34.07%) DevOps
4 45 (33.33%) TDD
5 32 (23.70%) Full Stack Development
6 30 (22.22%) Test Automation
7 26 (19.26%) Continuous Delivery
8 24 (17.78%) Continuous Integration
9 21 (15.56%) SDET
9 21 (15.56%) Software Testing
9 21 (15.56%) Stakeholder Management
10 20 (14.81%) Integration Testing
10 20 (14.81%) Scrum
11 19 (14.07%) Non-Functional Testing
11 19 (14.07%) Test Planning
12 17 (12.59%) BDD
13 14 (10.37%) Clean Code
13 14 (10.37%) OO
14 12 (8.89%) SDLC
Programming Languages
1 130 (96.30%) Java
2 45 (33.33%) JavaScript
3 42 (31.11%) SQL
4 19 (14.07%) PL/SQL
5 7 (5.19%) TypeScript
6 4 (2.96%) C#
7 3 (2.22%) ES6
7 3 (2.22%) Shell Script
8 2 (1.48%) C++
9 1 (0.74%) Perl
9 1 (0.74%) Python
9 1 (0.74%) Ruby
9 1 (0.74%) VB
9 1 (0.74%) VB6
Qualifications
1 28 (20.74%) Security Cleared
2 27 (20.00%) SC Cleared
3 13 (9.63%) Degree
4 10 (7.41%) Computer Science Degree
5 2 (1.48%) Numerate Degree
Quality Assurance & Compliance
1 2 (1.48%) QA
2 1 (0.74%) GDPR
2 1 (0.74%) NCSC
System Software
1 21 (15.56%) Docker
2 2 (1.48%) Postfix
Systems Management
1 15 (11.11%) Kubernetes
2 9 (6.67%) Kibana
3 7 (5.19%) Ansible
4 4 (2.96%) logstash
5 3 (2.22%) Opscode Chef
5 3 (2.22%) Puppet
6 2 (1.48%) Grafana
6 2 (1.48%) ITRS Geneos
6 2 (1.48%) Prometheus
6 2 (1.48%) Terraform
Vendors
1 48 (35.56%) Oracle
2 11 (8.15%) Google
3 10 (7.41%) IBM
4 6 (4.44%) Microsoft
5 3 (2.22%) MuleSoft
5 3 (2.22%) New Relic
6 2 (1.48%) Checkmarx
6 2 (1.48%) Salesforce.com
6 2 (1.48%) Telerik
7 1 (0.74%) Atlassian
7 1 (0.74%) Cadence
7 1 (0.74%) F5
7 1 (0.74%) Imperva
7 1 (0.74%) Red Hat
7 1 (0.74%) Splunk
7 1 (0.74%) VMware