Period
to 18 October 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 18 October 2021 with a comparison to the same period in the previous 2 years.

Hadoop Distributed File System (HDFS)
England > London
6 months to
18 Oct 2021
Same period 2020 Same period 2019
Rank 681 418 594
Rank change year-on-year -263 +176 -7
Permanent jobs citing HDFS 48 56 151
As % of all permanent jobs advertised in London 0.095% 0.29% 0.28%
As % of the System Software category 0.50% 1.52% 1.56%
Number of salaries quoted 34 23 140
10th Percentile £47,500 " £56,250
25th Percentile £49,823 £63,750 £65,000
Median annual salary (50th Percentile) £60,000 £90,000 £75,000
Median % change year-on-year -33.33% +20.00% -
75th Percentile £81,875 £96,250 £85,000
90th Percentile £97,125 £126,000 £93,895
England median annual salary £60,000 £74,250 £72,500
% change year-on-year -19.19% +2.41% +3.57%

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 9,603 3,676 9,662
As % of all permanent IT jobs advertised in London 19.08% 18.99% 17.67%
Number of salaries quoted 6,057 3,234 8,104
10th Percentile £36,400 £40,000 £29,750
25th Percentile £52,500 £51,250 £42,500
Median annual salary (50th Percentile) £72,500 £70,000 £65,000
Median % change year-on-year +3.57% +7.69% +8.33%
75th Percentile £90,000 £85,000 £82,500
90th Percentile £110,000 £100,000 £95,000
England median annual salary £56,757 £55,000 £50,000
% change year-on-year +3.19% +10.00% -

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 18 October 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 18 October 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 -67 7 £56,914 -15.68% 4
HDFS
England

For the 6 months to 18 October 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 46 (95.83%) Hadoop
2 44 (91.67%) SQL
3 39 (81.25%) Apache Hive
4 33 (68.75%) Java
5 30 (62.50%) Python
5 30 (62.50%) Apache Spark
6 24 (50.00%) Analytics
7 23 (47.92%) Agile Software Development
8 21 (43.75%) PL/SQL
8 21 (43.75%) Oracle
9 20 (41.67%) GCP
9 20 (41.67%) Software Engineering
10 19 (39.58%) Data Modelling
10 19 (39.58%) Kafka
11 18 (37.50%) Big Data
11 18 (37.50%) Azure
12 17 (35.42%) HBase
12 17 (35.42%) Unix
12 17 (35.42%) Data Warehouse
13 16 (33.33%) Scrum
13 16 (33.33%) ETL
13 16 (33.33%) AWS
13 16 (33.33%) Impala
14 15 (31.25%) Docker
14 15 (31.25%) MySQL
14 15 (31.25%) PostgreSQL
15 14 (29.17%) Computer Science
15 14 (29.17%) NoSQL
15 14 (29.17%) DevOps
16 13 (27.08%) Talend

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 30 (62.50%) Apache Spark
2 12 (25.00%) SAS
3 7 (14.58%) Elasticsearch
4 2 (4.17%) Confluence
5 1 (2.08%) Apache
5 1 (2.08%) Apache Pig
Applications
1 1 (2.08%) Chatbot
Cloud Services
1 20 (41.67%) GCP
2 18 (37.50%) Azure
3 16 (33.33%) AWS
4 5 (10.42%) Power Platform
5 2 (4.17%) Amazon EMR
5 2 (4.17%) AWS Data Pipeline
5 2 (4.17%) Tricentis Tosca
6 1 (2.08%) Azure Cosmos DB
6 1 (2.08%) Azure Data Factory
6 1 (2.08%) Azure Machine Learning
6 1 (2.08%) Azure Synapse Analytics
6 1 (2.08%) Cloud Computing
Communications & Networking
1 10 (20.83%) Internet
2 9 (18.75%) SMS
3 4 (8.33%) Sourcefire
Database & Business Intelligence
1 46 (95.83%) Hadoop
2 39 (81.25%) Apache Hive
3 18 (37.50%) Big Data
4 17 (35.42%) Data Warehouse
4 17 (35.42%) HBase
5 16 (33.33%) Impala
6 15 (31.25%) MySQL
6 15 (31.25%) PostgreSQL
7 14 (29.17%) NoSQL
8 12 (25.00%) Amazon Redshift
8 12 (25.00%) Pentaho
9 11 (22.92%) DB2
10 10 (20.83%) Relational Database
11 6 (12.50%) Apache Cassandra
11 6 (12.50%) MongoDB
12 5 (10.42%) Amazon RDS
12 5 (10.42%) Power BI
13 4 (8.33%) BigQuery
14 3 (6.25%) Data Lake
14 3 (6.25%) Oracle Database
Development Applications
1 13 (27.08%) Git (software)
2 12 (25.00%) Jenkins
3 9 (18.75%) Eclipse
3 9 (18.75%) IBM UrbanCode
3 9 (18.75%) IntelliJ
3 9 (18.75%) Maven
3 9 (18.75%) Postman
3 9 (18.75%) SoapUI
4 4 (8.33%) GitLab
5 2 (4.17%) Bitbucket
5 2 (4.17%) JIRA
6 1 (2.08%) MLflow
General
1 12 (25.00%) Banking
2 10 (20.83%) Public Sector
3 6 (12.50%) Retail Banking
3 6 (12.50%) Social Skills
4 5 (10.42%) Finance
5 2 (4.17%) Analytical Skills
5 2 (4.17%) Marketing
5 2 (4.17%) Retail
6 1 (2.08%) Documentation Skills
6 1 (2.08%) Financial Institution
6 1 (2.08%) Inclusion and Diversity
6 1 (2.08%) Legal
6 1 (2.08%) Presentation Skills
Job Titles
1 21 (43.75%) Data Engineer
2 7 (14.58%) Informatica Engineer
3 6 (12.50%) Java Engineer
3 6 (12.50%) Senior Java Engineer
3 6 (12.50%) Software Engineer
4 4 (8.33%) Big Data Consultant
4 4 (8.33%) Big Data Engineer
4 4 (8.33%) Consultant
4 4 (8.33%) Cybersecurity Consultant
4 4 (8.33%) Data Consultant
4 4 (8.33%) Hadoop Consultant
4 4 (8.33%) Security Consultant
5 3 (6.25%) Cloud Engineer
5 3 (6.25%) Data Scientist
5 3 (6.25%) Developer
5 3 (6.25%) Senior Data Engineer
6 2 (4.17%) Architect
6 2 (4.17%) Azure Engineer
6 2 (4.17%) Hadoop Engineer
6 2 (4.17%) Senior Data Scientist
Libraries, Frameworks & Software Standards
1 19 (39.58%) Kafka
2 13 (27.08%) JSON
3 9 (18.75%) REST
3 9 (18.75%) SOAP
3 9 (18.75%) Spring
3 9 (18.75%) Spring Boot
3 9 (18.75%) Web Services
4 5 (10.42%) Spark Streaming
5 4 (8.33%) HTML
5 4 (8.33%) Lucene
5 4 (8.33%) Regular Expression
6 2 (4.17%) Akka
6 2 (4.17%) Keras
6 2 (4.17%) PySpark
6 2 (4.17%) RESTful
6 2 (4.17%) TensorFlow
7 1 (2.08%) Apache Beam
7 1 (2.08%) Matplotlib
7 1 (2.08%) Pandas
7 1 (2.08%) scikit-learn
Miscellaneous
1 9 (18.75%) Virtual Team
2 6 (12.50%) Cloud Native
2 6 (12.50%) Online Banking
3 4 (8.33%) Cyber Defence
3 4 (8.33%) Internet of Things
3 4 (8.33%) Linux Command Line
4 3 (6.25%) User Experience
5 2 (4.17%) Algorithms
5 2 (4.17%) Data Structures
5 2 (4.17%) Equities
5 2 (4.17%) Social Media
6 1 (2.08%) Hybrid Cloud
6 1 (2.08%) Social Network
Operating Systems
1 17 (35.42%) Unix
2 4 (8.33%) Windows
3 3 (6.25%) Linux
Processes & Methodologies
1 24 (50.00%) Analytics
2 23 (47.92%) Agile Software Development
3 20 (41.67%) Software Engineering
4 19 (39.58%) Data Modelling
5 16 (33.33%) ETL
5 16 (33.33%) Scrum
6 14 (29.17%) Computer Science
6 14 (29.17%) DevOps
7 12 (25.00%) Mentoring
8 10 (20.83%) Coaching
8 10 (20.83%) Migration
8 10 (20.83%) Multithreading
8 10 (20.83%) Requirements Gathering
8 10 (20.83%) Software Delivery
8 10 (20.83%) Software Testing
9 9 (18.75%) Process Improvement
10 8 (16.67%) Data Analytics
11 7 (14.58%) Business Intelligence
12 6 (12.50%) Data Science
12 6 (12.50%) Push Notifications
Programming Languages
1 44 (91.67%) SQL
2 33 (68.75%) Java
3 30 (62.50%) Python
4 21 (43.75%) PL/SQL
5 12 (25.00%) HiveQL
6 11 (22.92%) Scala
7 5 (10.42%) Shell Script
8 4 (8.33%) JavaScript
8 4 (8.33%) Perl
8 4 (8.33%) R
9 1 (2.08%) C#
9 1 (2.08%) C++
Qualifications
1 3 (6.25%) SC Cleared
1 3 (6.25%) Security Cleared
2 2 (4.17%) Degree
2 2 (4.17%) PhD
3 1 (2.08%) Computer Science Degree
System Software
1 15 (31.25%) Docker
2 1 (2.08%) Apache Flume
2 1 (2.08%) Apache ZooKeeper
Systems Management
1 12 (25.00%) Kubernetes
2 3 (6.25%) Ansible
3 1 (2.08%) Hadoop YARN
3 1 (2.08%) Kubeflow
Vendors
1 21 (43.75%) Oracle
2 13 (27.08%) Informatica
2 13 (27.08%) Splunk
2 13 (27.08%) Talend
3 4 (8.33%) Cisco
4 2 (4.17%) Ab Initio
4 2 (4.17%) Cloudera
4 2 (4.17%) Databricks
4 2 (4.17%) Microsoft
5 1 (2.08%) Cognos
5 1 (2.08%) Google
5 1 (2.08%) MicroStrategy