Period
to 24 June 2018

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for HDFS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited HDFS over the 6 months to 24 June 2018 with a comparison to the same period in the previous 2 years.

Hadoop Distributed File System (HDFS)
Central London > City of London
6 months to
24 Jun 2018
Same period 2017 Same period 2016
Rank 323 289 346
Rank change year-on-year -34 +57 +96
Permanent jobs citing HDFS 24 41 46
As % of all permanent IT jobs advertised in the City of London 0.22% 0.40% 0.34%
As % of the System Software category 1.50% 3.09% 2.85%
Number of salaries quoted 23 40 33
City of London median annual salary £67,500 £100,000 £85,000
Median salary % change year-on-year -32.50% +17.65% +13.33%
10th Percentile £53,500 £57,250 £52,500
90th Percentile £85,000 £115,000 £105,000
Central London median annual salary £67,500 £87,500 £82,500
% change year-on-year -22.86% +6.06% +10.00%

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

All System Software Skills
City of London
Permanent vacancies with a requirement for system software skills 1,598 1,327 1,613
As % of all permanent IT jobs advertised in the City of London 14.38% 13.05% 11.96%
Number of salaries quoted 1,472 1,212 1,453
City of London median annual salary £57,500 £52,500 £52,500
Median salary % change year-on-year +9.52% - +10.53%
10th Percentile £31,000 £27,775 £27,750
90th Percentile £87,500 £80,000 £78,750
Central London median annual salary £55,000 £50,000 £50,000
% change year-on-year +10.00% - +5.26%

HDFS
Job Vacancy Trend in the City of London

Job postings citing HDFS as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for HDFS in the City of London

HDFS
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing HDFS in the City of London.

Salary trend for HDFS in the City of London

HDFS
Salary Histogram in the City of London

The salary distribution of IT jobs citing HDFS in the City of London over the 6 months to 24 June 2018.

Salary histogram for HDFS in the City of London

HDFS
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing HDFS within the City of London region over the 6 months to 24 June 2018. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
London Bridge - 4 £80,000 -
HDFS
Central London

For the 6 months to 24 June 2018, IT 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 permanent job ads across the City of London region with a requirement for HDFS.

1 22 (91.67%) Hadoop
2 21 (87.50%) Big Data
3 19 (79.17%) Apache Hive
3 19 (79.17%) Apache Spark
4 17 (70.83%) SQL
5 16 (66.67%) Python
6 15 (62.50%) Scala
7 14 (58.33%) Java
8 11 (45.83%) ETL
8 11 (45.83%) Amazon AWS
8 11 (45.83%) Kafka
9 10 (41.67%) Data Engineering
10 9 (37.50%) Data Warehouse
11 8 (33.33%) SQL Server
11 8 (33.33%) NoSQL
11 8 (33.33%) Data Science
12 7 (29.17%) Mesos
12 7 (29.17%) Amazon EMR
12 7 (29.17%) Amazon Redshift
12 7 (29.17%) HBase
12 7 (29.17%) Machine Learning
12 7 (29.17%) MapReduce
12 7 (29.17%) Finance
13 6 (25.00%) Linux
13 6 (25.00%) Apache Cassandra
13 6 (25.00%) Impala
13 6 (25.00%) Amazon Kinesis
13 6 (25.00%) Hadoop YARN
13 6 (25.00%) Elastic Stack
14 5 (20.83%) Sqoop

HDFS
Co-occurring IT Skills in the City of 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 19 (79.17%) Apache Spark
2 3 (12.50%) Oracle Workflow
3 2 (8.33%) Apache
3 2 (8.33%) Elasticsearch
4 1 (4.17%) Apache Pig
Cloud Services
1 11 (45.83%) Amazon AWS
2 7 (29.17%) Amazon EMR
3 6 (25.00%) Amazon Kinesis
4 2 (8.33%) Microsoft Azure
Communications & Networking
1 1 (4.17%) Broadband
Database & Business Intelligence
1 22 (91.67%) Hadoop
2 21 (87.50%) Big Data
3 19 (79.17%) Apache Hive
4 9 (37.50%) Data Warehouse
5 8 (33.33%) NoSQL
5 8 (33.33%) SQL Server
6 7 (29.17%) Amazon Redshift
6 7 (29.17%) HBase
7 6 (25.00%) Apache Cassandra
7 6 (25.00%) Impala
8 5 (20.83%) Amazon Athena
8 5 (20.83%) Sqoop
9 4 (16.67%) Relational Database
9 4 (16.67%) SQL Server 2008
9 4 (16.67%) SQL Server 2012
9 4 (16.67%) SQL Server 2014
9 4 (16.67%) SQL Server Integration Services
10 3 (12.50%) PostgreSQL
10 3 (12.50%) VLDB
11 1 (4.17%) Data Mining
Development Applications
1 2 (8.33%) Gatling
1 2 (8.33%) Octopus Deploy
1 2 (8.33%) TeamCity
2 1 (4.17%) Git (software)
2 1 (4.17%) JUnit
General
1 7 (29.17%) Finance
2 4 (16.67%) Marketing
3 1 (4.17%) Retail
3 1 (4.17%) Telecoms
Job Titles
1 7 (29.17%) Data Engineer
2 5 (20.83%) Big Data Engineer
3 4 (16.67%) Database Engineer
3 4 (16.67%) Senior Database Engineer
4 3 (12.50%) Developer
5 2 (8.33%) Administrator
5 2 (8.33%) AWS Engineer
5 2 (8.33%) Big Data Developer
5 2 (8.33%) Data Scientist
5 2 (8.33%) DBA
5 2 (8.33%) Oracle DBA
6 1 (4.17%) AWS Developer
6 1 (4.17%) C# .NET Developer
6 1 (4.17%) DevOps Engineer
6 1 (4.17%) Hadoop Architect
6 1 (4.17%) Hadoop Engineer
6 1 (4.17%) Scala Developer
6 1 (4.17%) Senior DevOps
6 1 (4.17%) Senior DevOps Engineer
6 1 (4.17%) Senior Scala Developer
Libraries, Frameworks & Software Standards
1 11 (45.83%) Kafka
2 6 (25.00%) Elastic Stack
3 2 (8.33%) D3.js
4 1 (4.17%) .NET
4 1 (4.17%) AngularJS
4 1 (4.17%) Apache Thrift
4 1 (4.17%) ASP.NET
4 1 (4.17%) ASP.NET MVC
4 1 (4.17%) JMS
4 1 (4.17%) LAMP
4 1 (4.17%) LAPP Stack
4 1 (4.17%) Natural Language Processing
4 1 (4.17%) Node.js
4 1 (4.17%) PostGIS
4 1 (4.17%) RabbitMQ
4 1 (4.17%) React
4 1 (4.17%) Samza
4 1 (4.17%) Spring
4 1 (4.17%) Symfony
4 1 (4.17%) Web Services
Miscellaneous
1 5 (20.83%) Tandem
2 3 (12.50%) Fintech
3 2 (8.33%) Algorithms
3 2 (8.33%) Analytical Skills
3 2 (8.33%) Greenfield Project
4 1 (4.17%) Computer Science
4 1 (4.17%) Derivative
4 1 (4.17%) Life Science
4 1 (4.17%) Linux Command Line
4 1 (4.17%) Management Information System
4 1 (4.17%) Social Network
Operating Systems
1 6 (25.00%) Linux
2 3 (12.50%) Unix
3 1 (4.17%) DC/OS
3 1 (4.17%) Windows
3 1 (4.17%) Windows Server
Processes & Methodologies
1 11 (45.83%) ETL
2 10 (41.67%) Data Engineering
3 8 (33.33%) Data Science
4 7 (29.17%) Machine Learning
4 7 (29.17%) MapReduce
5 5 (20.83%) Data Development
5 5 (20.83%) Resource Management
6 4 (16.67%) Analytics
6 4 (16.67%) Campaign Management
6 4 (16.67%) Continuous Integration
6 4 (16.67%) Customer Engagement
6 4 (16.67%) Data Modelling
6 4 (16.67%) Digital Marketing
6 4 (16.67%) ETL Development
6 4 (16.67%) Mentoring
6 4 (16.67%) Requirements Analysis
6 4 (16.67%) SDLC
7 3 (12.50%) Migration
7 3 (12.50%) Workflow
7 3 (12.50%) Workflow Management
Programming Languages
1 17 (70.83%) SQL
2 16 (66.67%) Python
3 15 (62.50%) Scala
4 14 (58.33%) Java
5 5 (20.83%) Bash Shell
6 4 (16.67%) Perl
6 4 (16.67%) T-SQL
7 3 (12.50%) Korn
7 3 (12.50%) PL/SQL
8 1 (4.17%) C
8 1 (4.17%) C#
8 1 (4.17%) C++
8 1 (4.17%) CoffeeScript
8 1 (4.17%) F#
8 1 (4.17%) JavaScript
8 1 (4.17%) Julia
8 1 (4.17%) PHP
8 1 (4.17%) PowerShell
8 1 (4.17%) R
8 1 (4.17%) Ruby
Qualifications
1 1 (4.17%) DV Cleared
1 1 (4.17%) Security Cleared
Quality Assurance & Compliance
1 2 (8.33%) Data Quality
1 2 (8.33%) QA
System Software
1 3 (12.50%) Oracle RAC
2 2 (8.33%) Apache Flume
2 2 (8.33%) Docker
3 1 (4.17%) Virtual Machines
3 1 (4.17%) VMware Infrastructure
3 1 (4.17%) vSphere
Systems Management
1 7 (29.17%) Mesos
2 6 (25.00%) Hadoop YARN
3 4 (16.67%) Oozie
4 3 (12.50%) Data Guard
4 3 (12.50%) Kubernetes
4 3 (12.50%) Oracle RMAN
5 2 (8.33%) Kibana
5 2 (8.33%) logstash
5 2 (8.33%) Simian Army
6 1 (4.17%) Check_MK
6 1 (4.17%) Grafana
6 1 (4.17%) Graphite
6 1 (4.17%) Nagios
6 1 (4.17%) Prometheus
6 1 (4.17%) Puppet
6 1 (4.17%) Rsyslog
Vendors
1 4 (16.67%) Informatica
2 3 (12.50%) Microsoft
2 3 (12.50%) Oracle
2 3 (12.50%) Sun
3 2 (8.33%) Hortonworks
4 1 (4.17%) Atlassian
4 1 (4.17%) Cloudera
4 1 (4.17%) MapR
4 1 (4.17%) Talend
4 1 (4.17%) VMware