Period
to 19 September 2021

The following table provides summary statistics for contract job vacancies 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 19 September 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
6 months to
19 Sep 2021
Same period 2020 Same period 2019
Rank 609 436 631
Rank change year-on-year -173 +195 -28
Contract jobs citing HDFS 188 82 227
As % of all contract jobs advertised in the UK 0.24% 0.28% 0.26%
As % of the System Software category 1.71% 1.87% 1.64%
Number of daily rates quoted 106 54 129
10th Percentile £363 £356 £427
25th Percentile £459 £391 £481
Median daily rate (50th Percentile) £550 £443 £550
Median % change year-on-year +24.29% -19.55% +4.76%
75th Percentile £675 £550 £625
90th Percentile £731 £661 £699
UK excluding London median daily rate £500 £432 £525
% change year-on-year +15.74% -17.71% +5.00%
Number of hourly rates quoted 5 0 0
Median hourly rate £26.00 - -
UK excluding London median hourly rate £26.12 - -

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 with a requirement for system software skills.

All System Software Skills
UK
Contract vacancies with a requirement for system software skills 11,012 4,387 13,803
As % of all contract IT jobs advertised in the UK 14.03% 14.84% 15.53%
Number of daily rates quoted 7,732 2,912 9,274
10th Percentile £213 £213 £173
25th Percentile £400 £366 £335
Median daily rate (50th Percentile) £500 £475 £463
Median % change year-on-year +5.26% +2.70% +2.78%
75th Percentile £600 £575 £575
90th Percentile £675 £638 £638
UK excluding London median daily rate £425 £450 £425
% change year-on-year -5.56% +5.88% +6.25%
Number of hourly rates quoted 358 174 638
10th Percentile £11.94 £11.17 £11.17
25th Percentile £13.50 £12.78 £13.50
Median hourly rate £17.50 £17.75 £16.60
Median % change year-on-year -1.41% +6.94% +3.73%
75th Percentile £39.58 £40.56 £24.88
90th Percentile £65.50 £53.75 £47.00
UK excluding London median hourly rate £16.50 £17.00 £16.00
% change year-on-year -2.94% +6.25% +1.91%

HDFS
Job Vacancy Trend

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

Job vacancy trend for HDFS in the UK

HDFS
Contractor Daily Rate Trend

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

Daily rate trend for HDFS in the UK

HDFS
Daily Rate Histogram

Daily rate distribution for jobs citing HDFS over the 6 months to 19 September 2021.

Daily rate histogram for HDFS in the UK

HDFS
Contractor Hourly Rate Trend

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

Hourly rate trend for HDFS in the UK

HDFS
Top 17 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing HDFS within the UK over the 6 months to 19 September 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
England -142 160 £550 +22.22% 14
UK excluding London -103 96 £500 +15.74% 8
London -153 59 £600 +9.09% 6
Work from Home -210 53 £540 +25.00%
Midlands -54 34 £500 +16.01% 2
West Midlands -42 31 £500 +15.74% 2
South East -68 25 £425 -5.56% 3
North of England -84 15 £725 +67.82% 2
South West -30 8 £600 -
North East - 8 £750 -
Wales -19 7 £475 +11.76%
Yorkshire -42 5 £570 - 2
East of England - 4 £321 -
East Midlands -39 3 £500 +32.28%
North West -73 3 £492 +13.95%
Northern Ireland - 3 £475 -
Scotland -75 1 - - 1

For the 6 months to 19 September 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 with a requirement for HDFS.

1 172 (91.49%) Hadoop
2 159 (84.57%) Apache Hive
3 137 (72.87%) Apache Spark
4 103 (54.79%) Python
5 88 (46.81%) SQL
6 84 (44.68%) HBase
7 83 (44.15%) AWS
8 82 (43.62%) ETL
9 78 (41.49%) Big Data
10 73 (38.83%) Java
11 66 (35.11%) Jenkins
12 60 (31.91%) Analytics
13 58 (30.85%) Unix
13 58 (30.85%) Scala
14 57 (30.32%) Linux
14 57 (30.32%) Kafka
15 56 (29.79%) Data Modelling
16 55 (29.26%) Git (software)
17 50 (26.60%) Security Cleared
18 49 (26.06%) Azure
18 49 (26.06%) Impala
19 46 (24.47%) Cloudera
19 46 (24.47%) Oracle
20 42 (22.34%) Informatica
21 40 (21.28%) Business Intelligence
22 39 (20.74%) Relational Database
23 38 (20.21%) DevOps
23 38 (20.21%) Kubernetes
23 38 (20.21%) Agile Software Development
24 37 (19.68%) MySQL

HDFS
Co-occurring IT Skills 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
1 137 (72.87%) Apache Spark
2 26 (13.83%) Confluence
2 26 (13.83%) SAS
3 21 (11.17%) Apache
4 8 (4.26%) Apache Airflow
5 5 (2.66%) Elasticsearch
5 5 (2.66%) nginx
6 4 (2.13%) Apache Pig
6 4 (2.13%) Apache Solr
7 2 (1.06%) PowerExchange
8 1 (0.53%) Mule
8 1 (0.53%) WebLogic
Applications
1 14 (7.45%) Microsoft Excel
2 8 (4.26%) Spreadsheet
Business Applications
1 1 (0.53%) SAP FI-CA
1 1 (0.53%) SAP PSCD
Cloud Services
1 83 (44.15%) AWS
2 49 (26.06%) Azure
3 22 (11.70%) Amazon S3
3 22 (11.70%) GCP
4 16 (8.51%) Power Platform
5 10 (5.32%) Azure Data Factory
6 9 (4.79%) Azure Synapse Analytics
7 8 (4.26%) Snowflake
8 7 (3.72%) GitHub
8 7 (3.72%) Tricentis Tosca
9 5 (2.66%) Amazon EMR
10 4 (2.13%) Azure App Service
10 4 (2.13%) Azure Key Vault
10 4 (2.13%) Azure Storage
10 4 (2.13%) OpenShift
11 3 (1.60%) Amazon Kinesis
11 3 (1.60%) Amazon SQS
12 2 (1.06%) Amazon EC2
12 2 (1.06%) PaaS
12 2 (1.06%) SaaS
Communications & Networking
1 8 (4.26%) FTP
2 7 (3.72%) HTTP
2 7 (3.72%) Kerberos
2 7 (3.72%) SSL
2 7 (3.72%) WAN
3 6 (3.19%) Firewall
4 5 (2.66%) Network Security
5 4 (2.13%) HTTPS
6 3 (1.60%) PuTTY
7 2 (1.06%) Ethernet
7 2 (1.06%) VLAN
7 2 (1.06%) VSAN
Database & Business Intelligence
1 172 (91.49%) Hadoop
2 159 (84.57%) Apache Hive
3 84 (44.68%) HBase
4 78 (41.49%) Big Data
5 49 (26.06%) Impala
6 39 (20.74%) Relational Database
7 37 (19.68%) Metadata
7 37 (19.68%) MySQL
8 32 (17.02%) Pentaho
9 31 (16.49%) Data Warehouse
10 29 (15.43%) PostgreSQL
11 23 (12.23%) RDBMS
12 19 (10.11%) Data Lake
12 19 (10.11%) NoSQL
13 16 (8.51%) Power BI
14 15 (7.98%) Sqoop
15 14 (7.45%) Apache Cassandra
15 14 (7.45%) MongoDB
15 14 (7.45%) SQL Server
16 12 (6.38%) Amazon Redshift
Development Applications
1 66 (35.11%) Jenkins
2 55 (29.26%) Git (software)
3 31 (16.49%) Bitbucket
4 27 (14.36%) JIRA
5 14 (7.45%) ERwin
6 13 (6.91%) GitLab
7 12 (6.38%) Maven
8 11 (5.85%) Sonatype Nexus
8 11 (5.85%) Subversion
9 9 (4.79%) ER Studio
10 8 (4.26%) Artifactory
11 6 (3.19%) Eclipse
12 5 (2.66%) IBM UrbanCode
13 4 (2.13%) JUnit
13 4 (2.13%) TeamCity
14 3 (1.60%) IntelliJ
14 3 (1.60%) Mockito
14 3 (1.60%) Oracle APEX
15 2 (1.06%) Cucumber
15 2 (1.06%) ProC
General
1 31 (16.49%) Social Skills
2 25 (13.30%) Banking
3 21 (11.17%) Finance
4 19 (10.11%) Public Sector
5 13 (6.91%) Analytical Skills
6 10 (5.32%) Investment Banking
7 7 (3.72%) Presentation Skills
8 5 (2.66%) Retail
9 2 (1.06%) Pharmaceutical
9 2 (1.06%) Publishing
10 1 (0.53%) Digital Economy
10 1 (0.53%) Telecoms
Job Titles
1 70 (37.23%) Data Engineer
2 39 (20.74%) Developer
3 14 (7.45%) Hadoop Engineer
4 12 (6.38%) Software Engineer
5 11 (5.85%) Big Data Engineer
5 11 (5.85%) Big Data Manager
5 11 (5.85%) Data Manager
5 11 (5.85%) DevOps Engineer
6 10 (5.32%) Platform Manager
6 10 (5.32%) Python Engineer
7 9 (4.79%) Support Engineer
8 7 (3.72%) Azure Developer
8 7 (3.72%) Data Modeller
8 7 (3.72%) Java Engineer
8 7 (3.72%) Senior Data Engineer
9 6 (3.19%) Administrator
9 6 (3.19%) Cloud Engineer
9 6 (3.19%) Scala Developer
10 5 (2.66%) Architect
10 5 (2.66%) Senior Developer
Libraries, Frameworks & Software Standards
1 57 (30.32%) Kafka
2 18 (9.57%) Apache NiFi
2 18 (9.57%) PySpark
3 17 (9.04%) JSON
4 14 (7.45%) Spark Streaming
5 12 (6.38%) Spring
6 6 (3.19%) JDBC
6 6 (3.19%) YAML
7 5 (2.66%) ODBC
7 5 (2.66%) OLE DB
7 5 (2.66%) Regular Expression
7 5 (2.66%) Spring Boot
8 4 (2.13%) Akka
8 4 (2.13%) Node.js
8 4 (2.13%) PyArrow
8 4 (2.13%) RabbitMQ
9 3 (1.60%) Apache Avro
9 3 (1.60%) Pandas
9 3 (1.60%) RESTful
9 3 (1.60%) WireMock
Miscellaneous
1 6 (3.19%) Data Structures
2 3 (1.60%) Cloud Native
2 3 (1.60%) Hybrid Cloud
2 3 (1.60%) Public Cloud
3 1 (0.53%) Algorithms
3 1 (0.53%) Analytical Mindset
3 1 (0.53%) Equities
3 1 (0.53%) Foreign Exchange (FX)
3 1 (0.53%) Greenfield Project
3 1 (0.53%) Linux Command Line
3 1 (0.53%) PKI
3 1 (0.53%) Reference Data
3 1 (0.53%) Virtual Team
Operating Systems
1 58 (30.85%) Unix
2 57 (30.32%) Linux
3 20 (10.64%) Windows
4 9 (4.79%) Red Hat Enterprise Linux
5 2 (1.06%) Ubuntu
Processes & Methodologies
1 82 (43.62%) ETL
2 60 (31.91%) Analytics
3 56 (29.79%) Data Modelling
4 40 (21.28%) Business Intelligence
5 38 (20.21%) Agile Software Development
5 38 (20.21%) DevOps
6 37 (19.68%) Data Analytics
7 32 (17.02%) Software Engineering
8 28 (14.89%) Data Engineering
9 27 (14.36%) Configuration Management
9 27 (14.36%) Scrum
10 24 (12.77%) Data Virtualisation
11 23 (12.23%) Continuous Integration
11 23 (12.23%) Problem-Solving
12 21 (11.17%) Data Management
12 21 (11.17%) Use Case
13 16 (8.51%) Test Automation
14 15 (7.98%) Computer Science
14 15 (7.98%) Data Acquisition
14 15 (7.98%) Requirements Gathering
Programming Languages
1 103 (54.79%) Python
2 88 (46.81%) SQL
3 73 (38.83%) Java
4 58 (30.85%) Scala
5 26 (13.83%) PL/SQL
6 25 (13.30%) HiveQL
6 25 (13.30%) Shell Script
7 20 (10.64%) R
8 16 (8.51%) Bash Shell
8 16 (8.51%) Groovy
9 15 (7.98%) Perl
10 14 (7.45%) VBA
11 8 (4.26%) C
12 6 (3.19%) C++
13 5 (2.66%) Ruby
14 4 (2.13%) Go
15 3 (1.60%) PowerShell
16 2 (1.06%) PROC SQL
17 1 (0.53%) COBOL
17 1 (0.53%) Java 8
Qualifications
1 50 (26.60%) Security Cleared
2 34 (18.09%) SC Cleared
3 12 (6.38%) Degree
4 8 (4.26%) Computer Science Degree
5 4 (2.13%) DV Cleared
6 2 (1.06%) BPSS Clearance
7 1 (0.53%) CCA
7 1 (0.53%) ISEB
7 1 (0.53%) ISTQB
7 1 (0.53%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 12 (6.38%) QA
2 11 (5.85%) Data Quality
3 3 (1.60%) Sarbanes-Oxley
4 2 (1.06%) Disclosure Scotland
System Software
1 23 (12.23%) Docker
2 18 (9.57%) Apache ZooKeeper
3 5 (2.66%) Active Directory
3 5 (2.66%) Apache Flume
4 3 (1.60%) VMware Infrastructure
5 2 (1.06%) VMware NSX
5 2 (1.06%) vSphere
6 1 (0.53%) Hyper-V
Systems Management
1 38 (20.21%) Kubernetes
2 29 (15.43%) Ansible
3 26 (13.83%) Terraform
4 24 (12.77%) Hadoop YARN
5 20 (10.64%) Oozie
6 15 (7.98%) Ambari
7 9 (4.79%) Puppet
8 5 (2.66%) Grafana
8 5 (2.66%) Kibana
8 5 (2.66%) Prometheus
8 5 (2.66%) Rancher
9 3 (1.60%) Apache Slider
9 3 (1.60%) Istio
10 2 (1.06%) logstash
10 2 (1.06%) Microsoft Intune
10 2 (1.06%) vCenter Server
11 1 (0.53%) Control-M
Vendors
1 46 (24.47%) Cloudera
1 46 (24.47%) Oracle
2 42 (22.34%) Informatica
3 24 (12.77%) Talend
4 13 (6.91%) Ab Initio
5 11 (5.85%) Databricks
5 11 (5.85%) Hortonworks
5 11 (5.85%) MapR
6 10 (5.32%) Google
7 8 (4.26%) MicroStrategy
7 8 (4.26%) SAP
8 7 (3.72%) Microsoft
8 7 (3.72%) Salesforce.com
8 7 (3.72%) Teradata
9 6 (3.19%) Red Hat
10 5 (2.66%) Dynatrace
11 3 (1.60%) IBM
11 3 (1.60%) StreamSets
11 3 (1.60%) VMware
12 2 (1.06%) Genesys