Period
to 27 February 2021

The following table provides summary statistics for contract job vacancies advertised in London 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 27 February 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)
England > London
6 months to
27 Feb 2021
Same period 2020 Same period 2019
Rank 344 412 453
Rank change year-on-year +68 +41 -35
Contract jobs citing HDFS 74 74 168
As % of all contract jobs advertised in London 0.38% 0.26% 0.38%
As % of the System Software category 2.79% 1.79% 2.43%
Number of daily rates quoted 59 53 122
Median daily rate £575 £575 £600
Median daily rate % change year-on-year - -4.17% +4.35%
10th Percentile £420 £433 £476
90th Percentile £667 £700 £725
England median daily rate £540 £550 £583
% change year-on-year -1.82% -5.70% +1.43%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
England median hourly rate - - -

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 London with a requirement for system software skills.

All System Software Skills
London
Contract vacancies with a requirement for system software skills 2,656 4,138 6,907
As % of all contract IT jobs advertised in London 13.54% 14.70% 15.70%
Number of daily rates quoted 1,946 3,086 5,083
Median daily rate £505 £500 £525
Median daily rate % change year-on-year +1.00% -4.76% +5.00%
10th Percentile £318 £200 £205
90th Percentile £700 £675 £675
England median daily rate £475 £450 £475
% change year-on-year +5.56% -5.26% +5.56%
Number of hourly rates quoted 24 92 122
Median hourly rate £23.00 £18.25 £20.00
Median hourly rate % change year-on-year +26.03% -8.75% +2.56%
10th Percentile £12.56 £12.44 £12.75
90th Percentile £60.00 £32.84 £46.37
Median hourly rate £17.50 £16.23 £16.00
% change year-on-year +7.86% +1.41% +0.88%

HDFS
Job Vacancy Trend in London

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

Job vacancy trend for HDFS in London

HDFS
Contractor Daily Rate Trend in London

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

Daily rate trend for HDFS in London

HDFS
Daily Rate Histogram in London

Daily rate distribution for jobs citing HDFS in London over the 6 months to 27 February 2021.

Daily rate histogram for HDFS in London

HDFS
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 HDFS within the London region over the 6 months to 27 February 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 +74 7 £310 -48.33% 1
West London +41 4 £660 +14.78%
East London +28 1 £405 -23.58%
HDFS
England

For the 6 months to 27 February 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 London region with a requirement for HDFS.

1 74 (100.00%) Hadoop
2 64 (86.49%) Apache Hive
2 64 (86.49%) Apache Spark
3 47 (63.51%) Big Data
4 42 (56.76%) ETL
5 39 (52.70%) SQL
6 34 (45.95%) Java
7 32 (43.24%) Scala
8 31 (41.89%) Impala
9 30 (40.54%) HBase
9 30 (40.54%) Kafka
10 28 (37.84%) Python
10 28 (37.84%) Agile Software Development
11 27 (36.49%) NoSQL
12 25 (33.78%) Data Modelling
12 25 (33.78%) Security Cleared
13 24 (32.43%) SC Cleared
13 24 (32.43%) Amazon S3
13 24 (32.43%) Cloudera
14 21 (28.38%) Data Engineering
14 21 (28.38%) AWS
14 21 (28.38%) Data Management
15 20 (27.03%) ETL Development
15 20 (27.03%) Amazon EMR
16 19 (25.68%) Data Ingestion
17 17 (22.97%) Data Warehouse
17 17 (22.97%) Oracle
17 17 (22.97%) Azure
18 15 (20.27%) Linux
18 15 (20.27%) MapReduce

HDFS
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 64 (86.49%) Apache Spark
2 12 (16.22%) Apache Pig
3 8 (10.81%) Confluence
4 6 (8.11%) Apache
5 5 (6.76%) Apache Airflow
6 4 (5.41%) Apache Solr
7 3 (4.05%) SAS
Applications
1 4 (5.41%) Microsoft Excel
2 1 (1.35%) MS Visio
2 1 (1.35%) Spreadsheet
Cloud Services
1 24 (32.43%) Amazon S3
2 21 (28.38%) AWS
3 20 (27.03%) Amazon EMR
4 17 (22.97%) Azure
5 6 (8.11%) GCP
6 5 (6.76%) AWS CloudFormation
6 5 (6.76%) Power Platform
7 4 (5.41%) Amazon EC2
7 4 (5.41%) AWS Lambda
7 4 (5.41%) Serverless
8 3 (4.05%) Amazon ElastiCache
8 3 (4.05%) Amazon Kinesis
8 3 (4.05%) AWS Step Functions
9 2 (2.70%) Amazon CloudWatch
9 2 (2.70%) Amazon ECS
9 2 (2.70%) Azure Data Factory
10 1 (1.35%) SaaS
10 1 (1.35%) Virtual Private Cloud
Communications & Networking
1 3 (4.05%) Network Security
Database & Business Intelligence
1 74 (100.00%) Hadoop
2 64 (86.49%) Apache Hive
3 47 (63.51%) Big Data
4 31 (41.89%) Impala
5 30 (40.54%) HBase
6 27 (36.49%) NoSQL
7 17 (22.97%) Data Warehouse
8 14 (18.92%) SQL Server
9 13 (17.57%) Apache Cassandra
10 11 (14.86%) Parquet
11 10 (13.51%) Data Lake
11 10 (13.51%) MongoDB
12 9 (12.16%) Relational Database
13 8 (10.81%) MySQL
13 8 (10.81%) Presto
14 6 (8.11%) Pentaho
14 6 (8.11%) Tableau
15 5 (6.76%) Amazon Redshift
15 5 (6.76%) Power BI
15 5 (6.76%) Spark SQL
Development Applications
1 10 (13.51%) Git (software)
2 8 (10.81%) JIRA
3 6 (8.11%) Bitbucket
3 6 (8.11%) Jenkins
4 5 (6.76%) Atlassian Bamboo
5 3 (4.05%) Artifactory
5 3 (4.05%) Maven
6 1 (1.35%) ER Studio
6 1 (1.35%) ERwin
6 1 (1.35%) kappa
General
1 13 (17.57%) Finance
2 12 (16.22%) Banking
3 5 (6.76%) Investment Banking
3 5 (6.76%) Public Sector
4 2 (2.70%) French Language
4 2 (2.70%) Games
4 2 (2.70%) Military
5 1 (1.35%) Retail
Job Titles
1 31 (41.89%) Data Engineer
2 14 (18.92%) Architect
3 12 (16.22%) Big Data Engineer
3 12 (16.22%) Developer
4 9 (12.16%) Data Architect
5 7 (9.46%) Hadoop Engineer
6 5 (6.76%) AWS Engineer
6 5 (6.76%) Big Data Developer
6 5 (6.76%) Python Engineer
6 5 (6.76%) Scala Engineer
7 4 (5.41%) Cloud Engineer
7 4 (5.41%) Python Developer
8 3 (4.05%) Apache Spark Developer
8 3 (4.05%) Platform Engineer
8 3 (4.05%) Tester
9 2 (2.70%) Azure Engineer
9 2 (2.70%) Data Migration Developer
9 2 (2.70%) DevOps Engineer
9 2 (2.70%) Software Developer
9 2 (2.70%) Software Engineer
Libraries, Frameworks & Software Standards
1 30 (40.54%) Kafka
2 11 (14.86%) JSON
3 9 (12.16%) XML
4 6 (8.11%) Spark Streaming
5 3 (4.05%) Anaconda
5 3 (4.05%) Apache Avro
5 3 (4.05%) GraphX
5 3 (4.05%) Lucene
5 3 (4.05%) MLlib
5 3 (4.05%) PySpark
6 1 (1.35%) Akka
6 1 (1.35%) Apache NiFi
6 1 (1.35%) React
6 1 (1.35%) Spring
6 1 (1.35%) Web Services
Miscellaneous
1 6 (8.11%) Analytical Skills
2 4 (5.41%) VSAM
3 3 (4.05%) Cloud Native
4 1 (1.35%) Clustering
4 1 (1.35%) Data Structures
4 1 (1.35%) FMCG
4 1 (1.35%) Greenfield Project
4 1 (1.35%) Management Information System
4 1 (1.35%) User Experience
4 1 (1.35%) Wiki
Operating Systems
1 15 (20.27%) Linux
2 8 (10.81%) Unix
3 4 (5.41%) Windows
Processes & Methodologies
1 42 (56.76%) ETL
2 28 (37.84%) Agile Software Development
3 25 (33.78%) Data Modelling
4 21 (28.38%) Data Engineering
4 21 (28.38%) Data Management
5 20 (27.03%) ETL Development
6 19 (25.68%) Data Ingestion
7 15 (20.27%) MapReduce
8 14 (18.92%) Analytics
9 13 (17.57%) Data Science
9 13 (17.57%) DevOps
10 11 (14.86%) Continuous Integration
10 11 (14.86%) Machine Learning
10 11 (14.86%) Visualisation
11 10 (13.51%) Data Lineage
11 10 (13.51%) Problem-Solving
12 9 (12.16%) Migration
13 8 (10.81%) Business Intelligence
13 8 (10.81%) Data Migration
13 8 (10.81%) Scrum
Programming Languages
1 39 (52.70%) SQL
2 34 (45.95%) Java
3 32 (43.24%) Scala
4 28 (37.84%) Python
5 8 (10.81%) Shell Script
6 6 (8.11%) Perl
6 6 (8.11%) R
7 4 (5.41%) JavaScript
8 3 (4.05%) HiveQL
8 3 (4.05%) PL/SQL
8 3 (4.05%) VBA
9 1 (1.35%) Bash Shell
9 1 (1.35%) Korn
9 1 (1.35%) Kotlin
9 1 (1.35%) PowerShell
Qualifications
1 25 (33.78%) Security Cleared
2 24 (32.43%) SC Cleared
3 5 (6.76%) Degree
3 5 (6.76%) TOGAF Certification
4 3 (4.05%) AWS Certification
Quality Assurance & Compliance
1 7 (9.46%) QA
2 6 (8.11%) Data Quality
3 1 (1.35%) GDPR
3 1 (1.35%) PCI DSS
System Software
1 6 (8.11%) Apache ZooKeeper
2 5 (6.76%) Apache Flume
3 2 (2.70%) Docker
Systems Management
1 12 (16.22%) Hadoop YARN
2 6 (8.11%) Oozie
3 5 (6.76%) Ambari
3 5 (6.76%) Grafana
4 4 (5.41%) Ansible
5 1 (1.35%) Opscode Chef
5 1 (1.35%) Puppet
Vendors
1 24 (32.43%) Cloudera
2 17 (22.97%) Oracle
3 12 (16.22%) Informatica
4 10 (13.51%) Ab Initio
5 7 (9.46%) MapR
5 7 (9.46%) StreamSets
5 7 (9.46%) TIBCO
6 5 (6.76%) Atlassian
6 5 (6.76%) Google
7 4 (5.41%) Databricks
7 4 (5.41%) Salesforce.com
7 4 (5.41%) Teradata
8 3 (4.05%) Hortonworks
8 3 (4.05%) Talend
8 3 (4.05%) Vertica
9 2 (2.70%) Microsoft
10 1 (1.35%) Netezza
10 1 (1.35%) Rackspace