Period
to 29 July 2021

The following table provides summary statistics for permanent job vacancies advertised in 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 29 July 2021 with a comparison to the same period in the previous 2 years.

Hadoop Distributed File System (HDFS)
England > London
6 months to
29 Jul 2021
Same period 2020 Same period 2019
Rank 639 511 626
Rank change year-on-year -128 +115 -47
Permanent jobs citing HDFS 46 44 134
As % of all permanent jobs advertised in London 0.10% 0.15% 0.23%
As % of the System Software category 0.52% 0.83% 1.36%
Number of salaries quoted 31 24 118
10th Percentile £53,042 £62,500 £55,000
25th Percentile £55,625 £69,906 £56,250
Median annual salary (50th Percentile) £72,500 £80,000 £70,000
Median % change year-on-year -9.38% +14.29% -6.67%
75th Percentile £84,000 £95,000 £84,688
90th Percentile £97,500 £122,625 £93,250
England median annual salary £65,000 £75,000 £65,000
% change year-on-year -13.33% +15.38% -7.14%

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 London with a requirement for system software skills.

All System Software Skills
London
Permanent vacancies with a requirement for system software skills 8,931 5,311 9,887
As % of all permanent IT jobs advertised in London 19.83% 18.53% 17.30%
Number of salaries quoted 5,717 4,582 8,344
10th Percentile £38,750 £37,500 £30,000
25th Percentile £52,500 £50,000 £43,000
Median annual salary (50th Percentile) £70,000 £67,500 £63,000
Median % change year-on-year +3.70% +7.14% +7.69%
75th Percentile £88,750 £85,000 £82,500
90th Percentile £105,000 £100,000 £97,500
England median annual salary £57,500 £55,000 £50,000
% change year-on-year +4.55% +10.00% +2.04%

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
Salary Trend in London

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

Salary trend for HDFS in London

HDFS
Salary Histogram in London

Salary distribution for jobs citing HDFS in London over the 6 months to 29 July 2021.

Salary histogram for HDFS in London

HDFS
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing HDFS within the London region over the 6 months to 29 July 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +2 6 £58,750 -21.67%
HDFS
England

For the 6 months to 29 July 2021, 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 London region with a requirement for HDFS.

1 44 (95.65%) Hadoop
2 43 (93.48%) SQL
3 38 (82.61%) Apache Hive
4 30 (65.22%) Java
5 27 (58.70%) Apache Spark
6 24 (52.17%) Azure
7 21 (45.65%) Big Data
7 21 (45.65%) Computer Science
7 21 (45.65%) Python
8 20 (43.48%) Kafka
9 19 (41.30%) AWS
10 18 (39.13%) Agile Software Development
10 18 (39.13%) GCP
11 16 (34.78%) Analytics
11 16 (34.78%) HBase
11 16 (34.78%) Git (software)
12 15 (32.61%) Degree
12 15 (32.61%) ETL
13 14 (30.43%) NoSQL
13 14 (30.43%) Problem-Solving
14 13 (28.26%) Virtual Team
14 13 (28.26%) Data Modelling
15 12 (26.09%) Splunk
15 12 (26.09%) JSON
15 12 (26.09%) Relational Database
16 11 (23.91%) DevOps
16 11 (23.91%) Analytical Skills
16 11 (23.91%) Data Engineering
16 11 (23.91%) Technical Leadership
16 11 (23.91%) Software Engineering

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 27 (58.70%) Apache Spark
2 4 (8.70%) Elasticsearch
3 2 (4.35%) Apache
3 2 (4.35%) Apache Airflow
3 2 (4.35%) SAS
Cloud Services
1 24 (52.17%) Azure
2 19 (41.30%) AWS
3 18 (39.13%) GCP
4 8 (17.39%) Amazon S3
4 8 (17.39%) Azure Synapse Analytics
5 5 (10.87%) Power Platform
6 4 (8.70%) Azure Data Factory
6 4 (8.70%) Cloud Computing
6 4 (8.70%) PaaS
6 4 (8.70%) SaaS
7 2 (4.35%) Amazon EMR
7 2 (4.35%) AWS Data Pipeline
7 2 (4.35%) IaaS
8 1 (2.17%) Snowflake
Communications & Networking
1 8 (17.39%) FTP
1 8 (17.39%) SMS
2 7 (15.22%) Internet
3 4 (8.70%) Sourcefire
Database & Business Intelligence
1 44 (95.65%) Hadoop
2 38 (82.61%) Apache Hive
3 21 (45.65%) Big Data
4 16 (34.78%) HBase
5 14 (30.43%) NoSQL
6 12 (26.09%) Relational Database
7 10 (21.74%) DB2
8 9 (19.57%) SQL Server
9 8 (17.39%) Azure SQL Database
9 8 (17.39%) Metadata
9 8 (17.39%) SAP HANA
10 7 (15.22%) Data Lake
10 7 (15.22%) MongoDB
10 7 (15.22%) Oracle Database
11 5 (10.87%) Flink
11 5 (10.87%) MySQL
11 5 (10.87%) Power BI
11 5 (10.87%) Presto
12 4 (8.70%) HDInsight
12 4 (8.70%) Impala
Development Applications
1 16 (34.78%) Git (software)
2 8 (17.39%) Eclipse
2 8 (17.39%) ER Studio
2 8 (17.39%) ERwin
2 8 (17.39%) IBM UrbanCode
2 8 (17.39%) IntelliJ
2 8 (17.39%) Jenkins
2 8 (17.39%) Maven
2 8 (17.39%) Postman
2 8 (17.39%) SoapUI
2 8 (17.39%) Subversion
3 1 (2.17%) GitLab
General
1 11 (23.91%) Analytical Skills
2 9 (19.57%) Banking
3 7 (15.22%) Social Skills
4 5 (10.87%) Marketing
5 4 (8.70%) Finance
6 3 (6.52%) Advertising
6 3 (6.52%) Retail Banking
7 1 (2.17%) Documentation Skills
Job Titles
1 10 (21.74%) Developer
2 9 (19.57%) Data Engineer
3 8 (17.39%) ETL Developer
4 7 (15.22%) Software Engineer
5 6 (13.04%) Architect
6 5 (10.87%) Solutions Architect
7 4 (8.70%) Azure Developer
7 4 (8.70%) Big Data Consultant
7 4 (8.70%) Consultant
7 4 (8.70%) Cybersecurity Consultant
7 4 (8.70%) Data Consultant
7 4 (8.70%) Hadoop Consultant
7 4 (8.70%) Security Consultant
7 4 (8.70%) SSAS Developer
7 4 (8.70%) SSIS Developer
7 4 (8.70%) SSRS Developer
8 3 (6.52%) Administrator
8 3 (6.52%) Big Data Engineer
8 3 (6.52%) Java Engineer
8 3 (6.52%) Senior Java Engineer
Libraries, Frameworks & Software Standards
1 20 (43.48%) Kafka
2 12 (26.09%) JSON
3 8 (17.39%) REST
3 8 (17.39%) SOAP
3 8 (17.39%) Spark Streaming
3 8 (17.39%) Spring
3 8 (17.39%) Spring Boot
3 8 (17.39%) Web Services
4 6 (13.04%) HTML
5 5 (10.87%) AngularJS
6 4 (8.70%) Lucene
6 4 (8.70%) PySpark
6 4 (8.70%) Regular Expression
7 3 (6.52%) Hibernate
8 2 (4.35%) Akka
8 2 (4.35%) RESTful
9 1 (2.17%) Keras
9 1 (2.17%) PyTorch
9 1 (2.17%) TensorFlow
Miscellaneous
1 13 (28.26%) Virtual Team
2 6 (13.04%) Cloud Native
3 5 (10.87%) User Experience
4 4 (8.70%) Cyber Defence
4 4 (8.70%) Internet of Things
4 4 (8.70%) Linux Command Line
4 4 (8.70%) Social Media
5 3 (6.52%) Online Banking
5 3 (6.52%) Replication
6 2 (4.35%) Equities
7 1 (2.17%) Data Structures
Operating Systems
1 7 (15.22%) Unix
2 4 (8.70%) Windows
3 3 (6.52%) Linux
Processes & Methodologies
1 21 (45.65%) Computer Science
2 18 (39.13%) Agile Software Development
3 16 (34.78%) Analytics
4 15 (32.61%) ETL
5 14 (30.43%) Problem-Solving
6 13 (28.26%) Data Modelling
7 11 (23.91%) Data Engineering
7 11 (23.91%) DevOps
7 11 (23.91%) Software Engineering
7 11 (23.91%) Technical Leadership
8 9 (19.57%) Business Intelligence
8 9 (19.57%) Multithreading
9 8 (17.39%) Metadata Management
10 7 (15.22%) Data Analytics
11 6 (13.04%) Data Strategy
12 5 (10.87%) Data Integration
12 5 (10.87%) Data Management
12 5 (10.87%) Information Security
12 5 (10.87%) Migration
12 5 (10.87%) Visualisation
Programming Languages
1 43 (93.48%) SQL
2 30 (65.22%) Java
3 21 (45.65%) Python
4 10 (21.74%) PL/SQL
4 10 (21.74%) Scala
5 8 (17.39%) JavaScript
6 7 (15.22%) Perl
6 7 (15.22%) Shell Script
7 3 (6.52%) Bash Shell
7 3 (6.52%) PHP
8 2 (4.35%) HiveQL
9 1 (2.17%) C#
9 1 (2.17%) C++
9 1 (2.17%) R
Qualifications
1 15 (32.61%) Degree
2 8 (17.39%) Computer Science Degree
3 2 (4.35%) SC Cleared
3 2 (4.35%) Security Cleared
4 1 (2.17%) PhD
Quality Assurance & Compliance
1 2 (4.35%) QA
2 1 (2.17%) Data Quality
2 1 (2.17%) GDPR
System Software
1 10 (21.74%) Docker
Systems Management
1 10 (21.74%) Kubernetes
2 3 (6.52%) Ansible
2 3 (6.52%) Opscode Chef
2 3 (6.52%) Puppet
3 1 (2.17%) Hadoop YARN
Vendors
1 12 (26.09%) Splunk
2 10 (21.74%) Databricks
2 10 (21.74%) Oracle
3 9 (19.57%) Cloudera
4 8 (17.39%) Google
4 8 (17.39%) Salesforce.com
4 8 (17.39%) SAP
5 4 (8.70%) Cisco
6 3 (6.52%) Facebook
6 3 (6.52%) Hortonworks
6 3 (6.52%) Marin
6 3 (6.52%) Microsoft
6 3 (6.52%) Talend
7 2 (4.35%) Informatica