Period
to 24 February 2018

The following table provides summary statistics for permanent job vacancies 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 February 2018 with a comparison to the same period in the previous 2 years.

Hadoop Distributed File System (HDFS)
UK
6 months to
24 Feb 2018
Same period 2017 Same period 2016
Rank 856 891 1011
Rank change year-on-year +35 +120 +142
Permanent jobs citing HDFS 321 283 299
As % of all permanent IT jobs advertised in the UK 0.18% 0.16% 0.14%
As % of the System Software category 1.37% 1.31% 1.20%
Number of salaries quoted 257 224 229
UK median annual salary £70,000 £75,000 £70,000
Median salary % change year-on-year -6.67% +7.14% +16.67%
10th Percentile £42,500 £49,750 £47,500
90th Percentile £101,000 £115,000 £120,000
UK excluding London median annual salary £60,000 £63,750 £57,500
% change year-on-year -5.88% +10.87% +15.00%

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 with a requirement for system software skills.

All System Software Skills
UK
Permanent vacancies with a requirement for system software skills 23,467 21,540 24,945
As % of all permanent IT jobs advertised in the UK 13.40% 12.26% 11.82%
Number of salaries quoted 19,372 17,879 21,044
UK median annual salary £45,000 £42,500 £40,000
Median salary % change year-on-year +5.88% +6.25% -
10th Percentile £24,250 £23,250 £22,750
90th Percentile £77,500 £72,500 £67,500
UK excluding London median annual salary £40,000 £37,500 £37,500
% change year-on-year +6.67% - +7.14%

HDFS
Job Vacancy Trend

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

Job vacancy trend for HDFS in the UK

HDFS
Salary Trend

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

Salary trend for HDFS in the UK

HDFS
Salary Histogram

The salary distribution of IT jobs citing HDFS over the 6 months to 24 February 2018.

Salary histogram for HDFS in the UK

HDFS
Top 12 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing HDFS within the UK over the 6 months to 24 February 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
England +59 317 £70,000 -6.67% 49
London -20 178 £75,000 -6.25% 34
UK excluding London +57 142 £60,000 -5.88% 19
South East +41 68 £56,250 +2.27% 9
East of England +32 30 £75,000 +15.38% 1
South West +15 19 £50,000 -33.33% 1
North of England +4 13 £45,000 -14.29% 4
Midlands +10 8 £60,000 -5.88%
North West +9 8 £45,000 -14.29% 2
West Midlands +3 8 £60,000 -5.88%
Yorkshire +12 5 £42,500 -22.73% 2
Scotland -32 4 £59,750 -30.72% 4

For the 6 months to 24 February 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 with a requirement for HDFS.

1 285 (88.79%) Hadoop
2 228 (71.03%) Big Data
3 222 (69.16%) Apache Spark
4 177 (55.14%) Apache Hive
5 165 (51.40%) Java
6 155 (48.29%) HBase
7 145 (45.17%) Python
8 121 (37.69%) Linux
9 120 (37.38%) Agile Software Development
10 118 (36.76%) SQL
11 112 (34.89%) MapReduce
11 112 (34.89%) Analytics
12 110 (34.27%) Kafka
13 107 (33.33%) Amazon AWS
14 105 (32.71%) Scala
15 84 (26.17%) ETL
15 84 (26.17%) Degree
16 75 (23.36%) Apache
17 73 (22.74%) Apache Flume
18 72 (22.43%) Impala
19 68 (21.18%) SQL Server
20 67 (20.87%) Continuous Integration
21 64 (19.94%) NoSQL
22 62 (19.31%) Visualisation
23 61 (19.00%) Sqoop
24 60 (18.69%) Jenkins
24 60 (18.69%) MongoDB
24 60 (18.69%) Data Science
25 58 (18.07%) Git (software)
26 57 (17.76%) Apache Pig

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
1 222 (69.16%) Apache Spark
2 75 (23.36%) Apache
3 57 (17.76%) Apache Pig
4 47 (14.64%) Elasticsearch
5 28 (8.72%) Apache Solr
6 7 (2.18%) Confluence
6 7 (2.18%) JBoss
6 7 (2.18%) Tomcat
7 6 (1.87%) SAS
7 6 (1.87%) WebSphere
8 5 (1.56%) Apache Geronimo
8 5 (1.56%) GlassFish
8 5 (1.56%) OpenStack
8 5 (1.56%) Oracle SOA Suite
8 5 (1.56%) WebLogic
9 4 (1.25%) Oracle Coherence
10 3 (0.93%) Apache Airflow
11 2 (0.62%) Cloud Foundry
11 2 (0.62%) GemFire
11 2 (0.62%) nginx
Applications
1 6 (1.87%) Weka
2 3 (0.93%) MS Visio
Business Applications
1 4 (1.25%) Oracle 11i
1 4 (1.25%) Oracle Assets
1 4 (1.25%) Oracle EBS
1 4 (1.25%) Oracle EBS R12
1 4 (1.25%) Oracle General Ledger
1 4 (1.25%) Oracle iProcurement
1 4 (1.25%) Oracle Payables
1 4 (1.25%) Oracle Receivables
2 1 (0.31%) Summit
Cloud Services
1 107 (33.33%) Amazon AWS
2 51 (15.89%) Microsoft Azure
3 37 (11.53%) Amazon EMR
4 23 (7.17%) Amazon S3
5 22 (6.85%) Azure Data Factory
6 20 (6.23%) Google Cloud Platform
7 19 (5.92%) AWS Lambda
8 18 (5.61%) Serverless
9 17 (5.30%) Amazon Kinesis
10 14 (4.36%) GitHub
11 9 (2.80%) Cloud Computing
12 7 (2.18%) IaaS
13 6 (1.87%) Amazon EC2
14 5 (1.56%) AWS CloudFormation
14 5 (1.56%) Loggly
14 5 (1.56%) Sumo Logic
15 4 (1.25%) PaaS
16 2 (0.62%) CloudFront
16 2 (0.62%) Slack
16 2 (0.62%) Virtual Private Cloud
Communications & Networking
1 25 (7.79%) Internet
2 21 (6.54%) Kerberos
3 8 (2.49%) DNS
4 7 (2.18%) HTTP
4 7 (2.18%) Network Security
5 5 (1.56%) Firewall
6 3 (0.93%) Broadband
6 3 (0.93%) TCP/IP
7 2 (0.62%) SSL
8 1 (0.31%) Wireshark
Database & Business Intelligence
1 285 (88.79%) Hadoop
2 228 (71.03%) Big Data
3 177 (55.14%) Apache Hive
4 155 (48.29%) HBase
5 72 (22.43%) Impala
6 68 (21.18%) SQL Server
7 64 (19.94%) NoSQL
8 61 (19.00%) Sqoop
9 60 (18.69%) MongoDB
10 57 (17.76%) Relational Database
11 55 (17.13%) Data Warehouse
12 51 (15.89%) Data Lake
13 47 (14.64%) Apache Cassandra
14 39 (12.15%) PostgreSQL
15 34 (10.59%) Parquet
16 31 (9.66%) MySQL
17 30 (9.35%) SQL Server Analysis Services
17 30 (9.35%) SQL Server Integration Services
18 29 (9.03%) Amazon Redshift
18 29 (9.03%) Power BI
Development Applications
1 60 (18.69%) Jenkins
2 58 (18.07%) Git (software)
3 29 (9.03%) JIRA
3 29 (9.03%) Maven
4 16 (4.98%) TeamCity
5 12 (3.74%) Grunt
6 9 (2.80%) Gerrit
6 9 (2.80%) Vagrant
7 8 (2.49%) Bitbucket
7 8 (2.49%) Eclipse
7 8 (2.49%) Jasmine
7 8 (2.49%) JUnit
7 8 (2.49%) Selenium
8 7 (2.18%) Gradle
9 6 (1.87%) Ant
9 6 (1.87%) IntelliJ
9 6 (1.87%) RStudio
9 6 (1.87%) SQL Server Management Studio (SSMS)
9 6 (1.87%) Subversion
10 5 (1.56%) SonarQube
General
1 53 (16.51%) Finance
2 25 (7.79%) Banking
3 19 (5.92%) Advertising
4 17 (5.30%) Retail
5 13 (4.05%) Marketing
6 9 (2.80%) Front Office
7 5 (1.56%) Automotive
7 5 (1.56%) Investment Banking
8 4 (1.25%) Financial Institution
9 3 (0.93%) Games
9 3 (0.93%) Telecoms
10 2 (0.62%) Legal
11 1 (0.31%) Electronics
11 1 (0.31%) iGaming
11 1 (0.31%) Manufacturing
Job Titles
1 97 (30.22%) Developer
2 80 (24.92%) Data Engineer
3 62 (19.31%) Big Data Engineer
4 49 (15.26%) Java Developer
5 39 (12.15%) Senior Developer
6 36 (11.21%) Architect
7 33 (10.28%) Data Architect
7 33 (10.28%) Senior Java Developer
8 30 (9.35%) Hadoop Engineer
9 28 (8.72%) Big Data Developer
10 24 (7.48%) Big Data Architect
11 21 (6.54%) Consultant
12 20 (6.23%) Data Scientist
12 20 (6.23%) Software Engineer
13 15 (4.67%) Business Intelligence Consultant
14 14 (4.36%) Big Data Software Engineer
15 13 (4.05%) DevOps Engineer
15 13 (4.05%) Java Engineer
16 12 (3.74%) Cloud Architect
16 12 (3.74%) Scala Developer
Libraries, Frameworks & Software Standards
1 110 (34.27%) Kafka
2 40 (12.46%) REST
3 39 (12.15%) Web Services
4 36 (11.21%) Node.js
5 35 (10.90%) CSS
5 35 (10.90%) HTML
6 33 (10.28%) Elastic Stack
6 33 (10.28%) Spring
7 31 (9.66%) JSON
8 29 (9.03%) AngularJS
8 29 (9.03%) Apache Avro
9 24 (7.48%) RabbitMQ
10 21 (6.54%) SOAP
11 19 (5.92%) .NET
11 19 (5.92%) Java EE
11 19 (5.92%) Samza
12 17 (5.30%) TensorFlow
12 17 (5.30%) XML
13 13 (4.05%) Spring Boot
14 12 (3.74%) PCRE
Miscellaneous
1 49 (15.26%) Computer Science
2 32 (9.97%) Analytical Skills
3 28 (8.72%) Fintech
4 27 (8.41%) Algorithms
5 24 (7.48%) Greenfield Project
6 22 (6.85%) Data Structures
7 17 (5.30%) Driving Licence
8 13 (4.05%) Enterprise Software
8 13 (4.05%) Replication
9 12 (3.74%) Linux Command Line
10 9 (2.80%) Clustering
11 8 (2.49%) Tandem
12 5 (1.56%) Data Centre
12 5 (1.56%) Public Cloud
12 5 (1.56%) Virtual Team
13 4 (1.25%) Credit Risk
13 4 (1.25%) Hybrid Cloud
13 4 (1.25%) Private Cloud
14 3 (0.93%) Cloud Native
14 3 (0.93%) Online Games
Operating Systems
1 121 (37.69%) Linux
2 26 (8.10%) Windows
3 23 (7.17%) Unix
4 5 (1.56%) CoreOS
5 4 (1.25%) Ubuntu
6 3 (0.93%) CentOS
6 3 (0.93%) Red Hat Enterprise Linux
7 2 (0.62%) Amazon Linux
7 2 (0.62%) Mesosphere
8 1 (0.31%) DC/OS
Processes & Methodologies
1 120 (37.38%) Agile Software Development
2 112 (34.89%) Analytics
2 112 (34.89%) MapReduce
3 84 (26.17%) ETL
4 67 (20.87%) Continuous Integration
5 62 (19.31%) Visualisation
6 60 (18.69%) Data Science
7 54 (16.82%) Business Intelligence
7 54 (16.82%) Machine Learning
8 52 (16.20%) OO
9 47 (14.64%) TDD
10 44 (13.71%) DevOps
10 44 (13.71%) Software Engineering
11 41 (12.77%) Data Modelling
11 41 (12.77%) Open Source
12 36 (11.21%) Data Analytics
12 36 (11.21%) Data Visualisation
12 36 (11.21%) Scrum
13 32 (9.97%) Data Architecture
13 32 (9.97%) Microservices
Programming Languages
1 165 (51.40%) Java
2 145 (45.17%) Python
3 118 (36.76%) SQL
4 105 (32.71%) Scala
5 57 (17.76%) JavaScript
6 41 (12.77%) R
7 29 (9.03%) Ruby
8 28 (8.72%) C#
9 26 (8.10%) Bash Shell
10 20 (6.23%) T-SQL
11 17 (5.30%) Shell Script
12 15 (4.67%) Go
13 12 (3.74%) C
13 12 (3.74%) HiveQL
14 10 (3.12%) PHP
14 10 (3.12%) PL/SQL
15 9 (2.80%) C++
15 9 (2.80%) Perl
16 6 (1.87%) F#
17 5 (1.56%) XPath
Qualifications
1 84 (26.17%) Degree
2 41 (12.77%) Computer Science Degree
3 16 (4.98%) Security Cleared
4 12 (3.74%) CEH
4 12 (3.74%) CISSP
4 12 (3.74%) GCIH
4 12 (3.74%) OSCP
5 11 (3.43%) Master's Degree
6 10 (3.12%) SC Cleared
7 6 (1.87%) DV Cleared
8 5 (1.56%) Numerate Degree
9 4 (1.25%) ISTQB
9 4 (1.25%) PRINCE2 Certification
10 3 (0.93%) Microsoft Certification
11 2 (0.62%) CTC Cleared
11 2 (0.62%) PhD
Quality Assurance & Compliance
1 20 (6.23%) QA
2 12 (3.74%) GPG13
2 12 (3.74%) ISO/IEC 27001
3 10 (3.12%) Data Quality
4 3 (0.93%) GCP
5 2 (0.62%) SLA
6 1 (0.31%) GDPR
6 1 (0.31%) MiFID
System Software
1 73 (22.74%) Apache Flume
2 53 (16.51%) Docker
3 32 (9.97%) Apache ZooKeeper
4 12 (3.74%) Snort
5 5 (1.56%) Active Directory
5 5 (1.56%) VirtualBox
5 5 (1.56%) VMware Infrastructure
6 3 (0.93%) Hyper-V
7 2 (0.62%) MapR-FS
7 2 (0.62%) Virtual Machines
8 1 (0.31%) Xen
Systems Management
1 52 (16.20%) Hadoop YARN
2 46 (14.33%) Oozie
3 32 (9.97%) Puppet
4 28 (8.72%) Ansible
5 25 (7.79%) Mesos
6 24 (7.48%) Kubernetes
7 15 (4.67%) Opscode Chef
8 14 (4.36%) Kibana
9 12 (3.74%) Suricata
10 11 (3.43%) Terraform
11 10 (3.12%) Ambari
11 10 (3.12%) Nagios
12 8 (2.49%) logstash
13 6 (1.87%) QRadar
13 6 (1.87%) Salt
14 5 (1.56%) Graphite
14 5 (1.56%) ZABBIX
15 3 (0.93%) Fluentd
16 2 (0.62%) Consul
16 2 (0.62%) Docker Swarm
Vendors
1 55 (17.13%) Cloudera
1 55 (17.13%) Tableau
2 51 (15.89%) Oracle
3 50 (15.58%) Hortonworks
4 32 (9.97%) Microsoft
5 24 (7.48%) Google
6 19 (5.92%) MapR
7 15 (4.67%) SAP
8 14 (4.36%) Talend
9 13 (4.05%) Splunk
10 12 (3.74%) FireEye
10 12 (3.74%) Fortinet
10 12 (3.74%) Palo Alto
10 12 (3.74%) Sophos
10 12 (3.74%) Sourcefire
10 12 (3.74%) TippingPoint
10 12 (3.74%) WorldPay
11 10 (3.12%) Atlassian
12 9 (2.80%) Perforce
13 8 (2.49%) Salesforce.com