Period
to 23 April 2021

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

Hadoop Distributed File System (HDFS)
UK > England
6 months to
23 Apr 2021
Same period 2020 Same period 2019
Rank 448 537 566
Rank change year-on-year +89 +29 -33
Contract jobs citing HDFS 144 107 300
As % of all contract jobs advertised in England 0.34% 0.21% 0.34%
As % of the System Software category 2.29% 1.36% 2.22%
Number of daily rates quoted 93 73 185
10th Percentile £355 £433 £469
25th Percentile £456 £488 £513
Median daily rate (50th Percentile) £540 £557 £600
Median % change year-on-year -3.05% -7.17% +4.35%
75th Percentile £588 £650 £650
90th Percentile £619 £700 £700
UK median daily rate £550 £557 £575
% change year-on-year -1.26% -3.13% -
Number of hourly rates quoted 1 0 0
Median hourly rate £14.50 - -
UK median hourly rate £14.50 - -

HDFS is in the System Software category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for system software skills.

All System Software Skills
England
Contract vacancies with a requirement for system software skills 6,282 7,864 13,503
As % of all contract IT jobs advertised in England 14.62% 15.58% 15.49%
Number of daily rates quoted 4,356 5,350 9,211
10th Percentile £225 £170 £190
25th Percentile £367 £325 £363
Median daily rate (50th Percentile) £475 £463 £475
Median % change year-on-year +2.70% -2.63% +5.56%
75th Percentile £575 £571 £575
90th Percentile £650 £638 £638
UK median daily rate £483 £450 £475
% change year-on-year +7.22% -5.26% +5.56%
Number of hourly rates quoted 227 408 564
10th Percentile £11.46 £11.23 £10.92
25th Percentile £13.38 £13.07 £12.85
Median hourly rate £19.50 £16.67 £16.00
Median % change year-on-year +16.96% +4.20% +0.88%
75th Percentile £41.13 £21.00 £24.06
90th Percentile £58.30 £42.74 £47.50
UK median hourly rate £20.00 £17.00 £16.00
% change year-on-year +17.65% +6.25% +0.88%

HDFS
Job Vacancy Trend in England

Job postings citing HDFS as a proportion of all IT jobs advertised in England.

Job vacancy trend for HDFS in England

HDFS
Contractor Daily Rate Trend in England

3-month moving average daily rate quoted in jobs citing HDFS in England.

Daily rate trend for HDFS in England

HDFS
Daily Rate Histogram in England

Daily rate distribution for jobs citing HDFS in England over the 6 months to 23 April 2021.

Daily rate histogram for HDFS in England

HDFS
Contractor Hourly Rate Trend in England

3-month moving average hourly rates quoted in jobs citing HDFS in England.

Hourly rate trend for HDFS in England

HDFS
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing HDFS within the England region over the 6 months to 23 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
London +23 70 £575 -4.17% 3
South East +71 26 £475 -5.94% 3
North of England +61 12 £555 +4.72% 1
Midlands +35 11 £521 +44.79% 3
West Midlands +31 11 £521 +44.79% 3
South West +40 9 £555 +5.21%
East of England +39 8 £338 - 2
Yorkshire +35 7 £555 +7.77%
North West +34 5 £356 -52.53% 1
HDFS
UK

For the 6 months to 23 April 2021, IT contractor jobs citing HDFS 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 England region with a requirement for HDFS.

1 135 (93.75%) Hadoop
2 124 (86.11%) Apache Hive
3 104 (72.22%) Apache Spark
4 76 (52.78%) Big Data
5 70 (48.61%) SQL
6 67 (46.53%) ETL
7 66 (45.83%) Scala
8 59 (40.97%) Cloudera
9 58 (40.28%) Python
9 58 (40.28%) Impala
10 54 (37.50%) Agile Software Development
11 53 (36.81%) HBase
11 53 (36.81%) Security Cleared
12 52 (36.11%) Java
13 49 (34.03%) Apache
14 47 (32.64%) SC Cleared
14 47 (32.64%) Kafka
15 45 (31.25%) Jenkins
16 44 (30.56%) Linux
17 43 (29.86%) Git (software)
18 41 (28.47%) Amazon S3
18 41 (28.47%) AWS
18 41 (28.47%) Ansible
18 41 (28.47%) DevOps
19 36 (25.00%) Data Ingestion
20 31 (21.53%) Relational Database
20 31 (21.53%) Scrum
21 30 (20.83%) Data Modelling
21 30 (20.83%) Oozie
21 30 (20.83%) Azure

HDFS
Co-occurring IT Skills in England 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
1 104 (72.22%) Apache Spark
2 49 (34.03%) Apache
3 22 (15.28%) Confluence
4 14 (9.72%) Elasticsearch
5 8 (5.56%) Apache Airflow
6 5 (3.47%) Apache Pig
7 4 (2.78%) Apache Solr
7 4 (2.78%) SAS
Applications
1 17 (11.81%) Spreadsheet
2 3 (2.08%) Microsoft Excel
Cloud Services
1 41 (28.47%) Amazon S3
1 41 (28.47%) AWS
2 30 (20.83%) Azure
3 19 (13.19%) Amazon EMR
4 12 (8.33%) Power Platform
5 9 (6.25%) GitHub
6 7 (4.86%) Azure Active Directory
6 7 (4.86%) GCP
6 7 (4.86%) Microsoft 365
7 5 (3.47%) Amazon EC2
7 5 (3.47%) AWS CloudFormation
8 4 (2.78%) Amazon CloudWatch
8 4 (2.78%) AWS Lambda
8 4 (2.78%) SaaS
8 4 (2.78%) Serverless
9 3 (2.08%) Amazon ElastiCache
9 3 (2.08%) Amazon Kinesis
9 3 (2.08%) Azure Data Factory
9 3 (2.08%) PaaS
10 2 (1.39%) OpenShift
Communications & Networking
1 7 (4.86%) Ethernet
1 7 (4.86%) Firewall
1 7 (4.86%) VLAN
1 7 (4.86%) VSAN
1 7 (4.86%) WAN
2 5 (3.47%) Kerberos
3 3 (2.08%) Network Security
4 2 (1.39%) SMTP
5 1 (0.69%) FTP
Database & Business Intelligence
1 135 (93.75%) Hadoop
2 124 (86.11%) Apache Hive
3 76 (52.78%) Big Data
4 58 (40.28%) Impala
5 53 (36.81%) HBase
6 31 (21.53%) Relational Database
7 29 (20.14%) NoSQL
8 24 (16.67%) MySQL
8 24 (16.67%) Pentaho
9 23 (15.97%) Data Lake
10 20 (13.89%) Data Warehouse
11 19 (13.19%) Spark SQL
12 13 (9.03%) Apache Cassandra
12 13 (9.03%) Parquet
13 12 (8.33%) Power BI
14 11 (7.64%) PostgreSQL
15 10 (6.94%) MongoDB
16 9 (6.25%) Apache Accumulo
16 9 (6.25%) SQL Server
16 9 (6.25%) Tableau
Development Applications
1 45 (31.25%) Jenkins
2 43 (29.86%) Git (software)
3 23 (15.97%) JIRA
4 17 (11.81%) GitLab
5 16 (11.11%) Sonatype Nexus
6 15 (10.42%) Maven
7 13 (9.03%) IBM UrbanCode
8 10 (6.94%) Gradle
9 9 (6.25%) Bitbucket
10 6 (4.17%) Artifactory
11 5 (3.47%) Cucumber
11 5 (3.47%) JUnit
12 4 (2.78%) Atlassian Bamboo
13 1 (0.69%) ER Studio
13 1 (0.69%) ERwin
13 1 (0.69%) kappa
13 1 (0.69%) TeamCity
General
1 28 (19.44%) Finance
2 16 (11.11%) Banking
3 14 (9.72%) Public Sector
4 8 (5.56%) Investment Banking
5 5 (3.47%) French Language
6 2 (1.39%) Games
7 1 (0.69%) Retail
7 1 (0.69%) Telecoms
Job Titles
1 43 (29.86%) Developer
2 41 (28.47%) Data Engineer
3 16 (11.11%) Big Data Developer
4 14 (9.72%) Apache Spark Developer
4 14 (9.72%) Architect
4 14 (9.72%) Scala Developer
5 13 (9.03%) Big Data Engineer
6 12 (8.33%) Hadoop Developer
7 8 (5.56%) Cloud Engineer
7 8 (5.56%) Data Architect
7 8 (5.56%) Scala Engineer
8 7 (4.86%) Hadoop Engineer
8 7 (4.86%) Python Developer
8 7 (4.86%) Software Engineer
9 6 (4.17%) Infrastructure Engineer
9 6 (4.17%) Python Engineer
9 6 (4.17%) Solutions Architect
10 5 (3.47%) AWS Engineer
10 5 (3.47%) ETL Developer
10 5 (3.47%) Pentaho Developer
Libraries, Frameworks & Software Standards
1 47 (32.64%) Kafka
2 15 (10.42%) PySpark
3 14 (9.72%) Apache NiFi
4 13 (9.03%) JSON
5 11 (7.64%) XML
6 9 (6.25%) Spark Streaming
6 9 (6.25%) Spring
7 8 (5.56%) RabbitMQ
8 6 (4.17%) Anaconda
9 5 (3.47%) SAML
10 3 (2.08%) Akka
10 3 (2.08%) GraphX
10 3 (2.08%) Lucene
10 3 (2.08%) MLlib
11 1 (0.69%) AngularJS
11 1 (0.69%) HTML
11 1 (0.69%) React
11 1 (0.69%) Web Services
11 1 (0.69%) YAML
Miscellaneous
1 14 (9.72%) Linux Command Line
2 13 (9.03%) Analytical Skills
3 6 (4.17%) VSAM
4 5 (3.47%) Data Structures
5 4 (2.78%) Analytical Mindset
6 3 (2.08%) Cloud Native
7 2 (1.39%) Private Cloud
8 1 (0.69%) Clustering
8 1 (0.69%) Cybercrime
8 1 (0.69%) Greenfield Project
8 1 (0.69%) Management Information System
8 1 (0.69%) Organisational Skills
8 1 (0.69%) Reference Data
8 1 (0.69%) Virtual Team
Operating Systems
1 44 (30.56%) Linux
2 12 (8.33%) Windows
3 9 (6.25%) Unix
4 7 (4.86%) Ubuntu
5 1 (0.69%) CentOS
Processes & Methodologies
1 67 (46.53%) ETL
2 54 (37.50%) Agile Software Development
3 41 (28.47%) DevOps
4 36 (25.00%) Data Ingestion
5 31 (21.53%) Scrum
6 30 (20.83%) Data Modelling
7 28 (19.44%) Configuration Management
7 28 (19.44%) Data Engineering
8 24 (16.67%) Analytics
8 24 (16.67%) ETL Development
9 23 (15.97%) Data Integration
9 23 (15.97%) Data Management
9 23 (15.97%) Problem-Solving
10 22 (15.28%) Data Acquisition
11 21 (14.58%) Continuous Integration
12 19 (13.19%) Software Engineering
12 19 (13.19%) Test Automation
12 19 (13.19%) Unit Testing
13 16 (11.11%) Business Intelligence
13 16 (11.11%) TDD
Programming Languages
1 70 (48.61%) SQL
2 66 (45.83%) Scala
3 58 (40.28%) Python
4 52 (36.11%) Java
5 16 (11.11%) Shell Script
6 9 (6.25%) Elm
6 9 (6.25%) Haskell
7 6 (4.17%) R
8 5 (3.47%) Bash Shell
9 4 (2.78%) PL/SQL
10 3 (2.08%) HiveQL
10 3 (2.08%) Perl
10 3 (2.08%) VBA
11 2 (1.39%) C
11 2 (1.39%) Go
11 2 (1.39%) JavaScript
11 2 (1.39%) Ruby
11 2 (1.39%) T-SQL
12 1 (0.69%) COBOL
12 1 (0.69%) Groovy
Qualifications
1 53 (36.81%) Security Cleared
2 47 (32.64%) SC Cleared
3 3 (2.08%) AWS Certification
4 2 (1.39%) Degree
5 1 (0.69%) BPSS Clearance
5 1 (0.69%) Computer Science Degree
Quality Assurance & Compliance
1 9 (6.25%) QA
2 6 (4.17%) Data Quality
3 2 (1.39%) GDPR
4 1 (0.69%) PCI DSS
System Software
1 16 (11.11%) Docker
2 11 (7.64%) Apache ZooKeeper
3 9 (6.25%) Active Directory
4 7 (4.86%) VMware NSX
4 7 (4.86%) vSphere
5 4 (2.78%) Apache Flume
6 2 (1.39%) Terminal Services
Systems Management
1 41 (28.47%) Ansible
2 30 (20.83%) Oozie
3 28 (19.44%) Hadoop YARN
4 17 (11.81%) Kubernetes
5 9 (6.25%) Puppet
6 7 (4.86%) Ambari
6 7 (4.86%) Microsoft Intune
7 6 (4.17%) Kibana
7 6 (4.17%) vCenter Server
8 5 (3.47%) Grafana
9 3 (2.08%) Terraform
10 2 (1.39%) Red Hat Satellite
10 2 (1.39%) SCCM
11 1 (0.69%) Control-M
Vendors
1 59 (40.97%) Cloudera
2 26 (18.06%) Oracle
3 13 (9.03%) Microsoft
4 10 (6.94%) MapR
5 7 (4.86%) Ab Initio
5 7 (4.86%) Hortonworks
5 7 (4.86%) StreamSets
6 6 (4.17%) Cisco
6 6 (4.17%) Dell
6 6 (4.17%) EMC
6 6 (4.17%) Salesforce.com
7 5 (3.47%) Databricks
8 4 (2.78%) Atlassian
8 4 (2.78%) Google
8 4 (2.78%) Informatica
8 4 (2.78%) Teradata
9 3 (2.08%) IBM
9 3 (2.08%) Talend
9 3 (2.08%) Vertica
10 2 (1.39%) CA