Period
to 22 January 2018

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for MapReduce skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited MapReduce over the 6 months to 22 January 2018 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.

MapReduce
England > London
6 months to
22 Jan 2018
Same period 2017 Same period 2016
Rank 422 379 465
Rank change year-on-year -43 +86 +10
Contract jobs citing MapReduce 205 214 132
As % of all contract IT jobs advertised in London 0.44% 0.52% 0.30%
As % of the Processes & Methodologies category 0.51% 0.60% 0.35%
Number of daily rates quoted 161 135 94
London median daily rate £550 £575 £600
Median daily rate % change year-on-year -4.35% -4.17% -4.00%
10th Percentile £400 £450 £432
90th Percentile £678 £738 £699
England median daily rate £550 £550 £600
% change year-on-year - -8.33% -4.00%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £45.00 - £33.55

MapReduce is in the Processes and Methodologies 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 process or methodology skills.

All Process and Methodology Skills
London
Contract vacancies with a requirement for process or methodology skills 40,009 35,437 37,392
As % of all contract IT jobs advertised in London 86.62% 86.02% 84.70%
Number of daily rates quoted 29,226 25,499 26,670
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% -
10th Percentile £313 £310 £300
90th Percentile £675 £650 £638
England median daily rate £450 £434 £425
% change year-on-year +3.72% +2.09% +6.12%
Number of hourly rates quoted 409 421 463
London median hourly rate £22.00 £24.00 £20.00
Median hourly rate % change year-on-year -8.33% +20.00% +6.13%
10th Percentile £13.46 £12.25 £11.25
90th Percentile £48.75 £52.50 £50.00
England median hourly rate £23.50 £25.00 £23.00
% change year-on-year -6.00% +8.70% +15.00%

MapReduce
Job Vacancy Trend in London

Job postings citing MapReduce as a percentage of all IT jobs advertised in London.

Job vacancy trend for MapReduce in London

MapReduce
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing MapReduce in London.

Contractor daily rate trend for MapReduce in London

MapReduce
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing MapReduce in London over the 6 months to 22 January 2018.

Contractor daily rate histogram for MapReduce in London

MapReduce
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 MapReduce within the London region over the 6 months to 22 January 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -1 62 £575 -8.00% 3
East London -14 11 £600 +4.35% 3
South London - 11 £544 -
West London -16 1 £505 +3.06% 5
MapReduce
England

For the 6 months to 22 January 2018, IT contractor jobs citing MapReduce also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for MapReduce.

1 193 (94.15%) Hadoop
2 161 (78.54%) Big Data
3 156 (76.10%) Apache Spark
4 136 (66.34%) Java
5 130 (63.41%) Apache Hive
6 116 (56.59%) HBase
7 104 (50.73%) HDFS
8 93 (45.37%) Python
9 91 (44.39%) Kafka
10 78 (38.05%) Apache Flume
11 69 (33.66%) Apache
12 67 (32.68%) NoSQL
12 67 (32.68%) Amazon AWS
13 66 (32.20%) SQL
13 66 (32.20%) Agile Software Development
14 63 (30.73%) Scala
14 63 (30.73%) MongoDB
15 62 (30.24%) Hadoop YARN
16 57 (27.80%) Oozie
17 54 (26.34%) Finance
17 54 (26.34%) Oracle
18 53 (25.85%) Jenkins
19 52 (25.37%) ETL
20 51 (24.88%) Apache Pig
20 51 (24.88%) Sqoop
21 49 (23.90%) Data Modelling
21 49 (23.90%) Linux
22 47 (22.93%) Analytics
23 46 (22.44%) Open Source
24 43 (20.98%) PySpark

MapReduce
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
1 156 (76.10%) Apache Spark
2 69 (33.66%) Apache
3 51 (24.88%) Apache Pig
4 27 (13.17%) Elasticsearch
5 15 (7.32%) Jupyter
6 13 (6.34%) Apache Solr
7 8 (3.90%) Oracle Coherence
8 7 (3.41%) Confluence
9 5 (2.44%) SAS
10 4 (1.95%) Apache Airflow
11 3 (1.46%) Jetty
12 1 (0.49%) Oracle Workflow
Applications
1 4 (1.95%) SPSS
Cloud Services
1 67 (32.68%) Amazon AWS
2 41 (20.00%) GitHub
3 29 (14.15%) Bluemix
3 29 (14.15%) IBM Cloud
4 22 (10.73%) Microsoft Azure
5 16 (7.80%) Amazon EC2
6 12 (5.85%) Amazon EMR
7 11 (5.37%) Amazon S3
8 5 (2.44%) Google Cloud Platform
9 3 (1.46%) AWS CloudFormation
9 3 (1.46%) Route 53
10 2 (0.98%) Azure Data Factory
11 1 (0.49%) Azure Active Directory
11 1 (0.49%) Azure Machine Learning
11 1 (0.49%) Data Lake Analytics
Communications & Networking
1 15 (7.32%) Kerberos
2 1 (0.49%) Broadband
2 1 (0.49%) SSL
Database & Business Intelligence
1 193 (94.15%) Hadoop
2 161 (78.54%) Big Data
3 130 (63.41%) Apache Hive
4 116 (56.59%) HBase
5 67 (32.68%) NoSQL
6 63 (30.73%) MongoDB
7 51 (24.88%) Sqoop
8 41 (20.00%) Apache Cassandra
9 36 (17.56%) PostgreSQL
10 33 (16.10%) Relational Database
11 32 (15.61%) Impala
12 25 (12.20%) Data Warehouse
13 17 (8.29%) Mahout
14 15 (7.32%) Oracle ODI
14 15 (7.32%) SQL Server
15 10 (4.88%) Amazon RDS
16 9 (4.39%) MySQL
17 8 (3.90%) RDBMS
18 7 (3.41%) IBM InfoSphere
18 7 (3.41%) MarkLogic
Development Applications
1 53 (25.85%) Jenkins
2 19 (9.27%) Git (software)
3 15 (7.32%) Cucumber
4 10 (4.88%) IntelliJ
4 10 (4.88%) JUnit
4 10 (4.88%) Maven
5 9 (4.39%) TeamCity
6 8 (3.90%) JIRA
6 8 (3.90%) Subversion
7 7 (3.41%) GitLab
8 5 (2.44%) Eclipse
8 5 (2.44%) Visual Studio
8 5 (2.44%) Visual Studio Team System
9 4 (1.95%) Gradle
9 4 (1.95%) SonarQube
10 3 (1.46%) Mercurial
11 1 (0.49%) Ant
11 1 (0.49%) Apache Continuum
11 1 (0.49%) Hudson
General
1 54 (26.34%) Finance
2 32 (15.61%) Banking
3 12 (5.85%) Marketing
4 9 (4.39%) Retail
5 7 (3.41%) Telecoms
6 5 (2.44%) Games
7 4 (1.95%) Electronics
7 4 (1.95%) Front Office
7 4 (1.95%) Manufacturing
8 3 (1.46%) Investment Banking
9 2 (0.98%) Advertising
9 2 (0.98%) Legal
10 1 (0.49%) French Language
10 1 (0.49%) Publishing
Job Titles
1 54 (26.34%) Developer
2 51 (24.88%) Data Engineer
3 40 (19.51%) Big Data Engineer
4 33 (16.10%) Big Data Developer
5 28 (13.66%) Hadoop Engineer
6 26 (12.68%) Java Engineer
7 16 (7.80%) Architect
7 16 (7.80%) Senior Java Engineer
8 15 (7.32%) Senior Hadoop Engineer
9 13 (6.34%) Java Developer
10 11 (5.37%) Hadoop Developer
11 10 (4.88%) Data Scientist
12 8 (3.90%) Data Architect
12 8 (3.90%) Data Migration Specialist
12 8 (3.90%) Migration Specialist
13 7 (3.41%) Administrator
13 7 (3.41%) Hadoop Administrator
13 7 (3.41%) Senior Developer
13 7 (3.41%) Senior Java Developer
14 6 (2.93%) Big Data Architect
Libraries, Frameworks & Software Standards
1 91 (44.39%) Kafka
2 43 (20.98%) PySpark
3 26 (12.68%) JMS
4 23 (11.22%) XML
5 21 (10.24%) scikit-learn
6 20 (9.76%) JSON
7 16 (7.80%) Pandas
7 16 (7.80%) Spring
8 15 (7.32%) NumPy
9 14 (6.83%) Lucene
9 14 (6.83%) Matplotlib
9 14 (6.83%) Seaborn
9 14 (6.83%) TensorFlow
10 12 (5.85%) REST
10 12 (5.85%) Web Services
11 11 (5.37%) AngularJS
12 10 (4.88%) Natural Language Processing
13 9 (4.39%) Apache Avro
13 9 (4.39%) Keras
14 8 (3.90%) Redux
Miscellaneous
1 41 (20.00%) Analytical Skills
2 17 (8.29%) Algorithms
3 11 (5.37%) Computer Science
4 9 (4.39%) Data Structures
5 6 (2.93%) Fintech
5 6 (2.93%) Replication
6 5 (2.44%) Derivative
7 4 (1.95%) Credit Derivative
7 4 (1.95%) Interest Rate Derivative
8 3 (1.46%) Credit Risk
8 3 (1.46%) Market Risk
9 2 (0.98%) Greenfield Project
10 1 (0.49%) Infotainment
Operating Systems
1 49 (23.90%) Linux
2 15 (7.32%) Unix
3 12 (5.85%) Red Hat Enterprise Linux
4 10 (4.88%) CentOS
5 3 (1.46%) Windows
6 2 (0.98%) Ubuntu
7 1 (0.49%) Debian
7 1 (0.49%) VMS
Processes & Methodologies
1 66 (32.20%) Agile Software Development
2 52 (25.37%) ETL
3 49 (23.90%) Data Modelling
4 47 (22.93%) Analytics
5 46 (22.44%) Open Source
6 42 (20.49%) DevOps
7 37 (18.05%) Machine Learning
8 36 (17.56%) Data Engineering
9 35 (17.07%) TDD
10 25 (12.20%) Multithreading
11 23 (11.22%) Data Transformation
12 22 (10.73%) Coaching
12 22 (10.73%) Migration
13 21 (10.24%) BDD
13 21 (10.24%) Software Engineering
14 20 (9.76%) Data Migration
14 20 (9.76%) Scrum
15 19 (9.27%) Data Cleansing
15 19 (9.27%) Statistics
16 16 (7.80%) Use Case
Programming Languages
1 136 (66.34%) Java
2 93 (45.37%) Python
3 66 (32.20%) SQL
4 63 (30.73%) Scala
5 21 (10.24%) JavaScript
6 17 (8.29%) Bash Shell
7 15 (7.32%) R
8 11 (5.37%) C#
8 11 (5.37%) Shell Script
9 10 (4.88%) Perl
10 6 (2.93%) C
11 5 (2.44%) C++
12 4 (1.95%) PHP
13 3 (1.46%) HiveQL
14 1 (0.49%) MATLAB
14 1 (0.49%) PowerShell
14 1 (0.49%) VB.NET
Qualifications
1 28 (13.66%) Security Cleared
2 16 (7.80%) DV Cleared
3 15 (7.32%) Degree
4 12 (5.85%) SC Cleared
5 7 (3.41%) PhD
6 4 (1.95%) Master's Degree
7 2 (0.98%) Computer Science Degree
Quality Assurance & Compliance
1 24 (11.71%) Data Quality
2 4 (1.95%) Actionable Recommendations
2 4 (1.95%) GDPR
2 4 (1.95%) SLA
System Software
1 104 (50.73%) HDFS
2 78 (38.05%) Apache Flume
3 32 (15.61%) Docker
4 8 (3.90%) Apache ZooKeeper
5 2 (0.98%) Active Directory
6 1 (0.49%) Virtual Machines
Systems Management
1 62 (30.24%) Hadoop YARN
2 57 (27.80%) Oozie
3 41 (20.00%) Ambari
4 24 (11.71%) Kubernetes
5 5 (2.44%) Mesos
5 5 (2.44%) Opscode Chef
5 5 (2.44%) Puppet
6 3 (1.46%) Ansible
6 3 (1.46%) Apache Slider
6 3 (1.46%) Salt
7 2 (0.98%) Terraform
8 1 (0.49%) Nagios
Vendors
1 54 (26.34%) Oracle
2 36 (17.56%) Tableau
3 30 (14.63%) IBM
4 27 (13.17%) MapR
5 26 (12.68%) Cloudera
6 24 (11.71%) Hortonworks
7 12 (5.85%) Microsoft
8 7 (3.41%) SAP
9 6 (2.93%) Talend
9 6 (2.93%) Teradata
10 5 (2.44%) Google
11 4 (1.95%) Alteryx
12 3 (1.46%) Red Hat
13 2 (0.98%) Ab Initio
13 2 (0.98%) Informatica
13 2 (0.98%) MicroStrategy
14 1 (0.49%) Cognos
14 1 (0.49%) Hyperion
14 1 (0.49%) Splunk
14 1 (0.49%) Sybase