Period
to 17 November 2017

The following table provides summary statistics for contract job vacancies advertised in the City of 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 17 November 2017 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
Central London > City of London
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 189 224 253
Rank change year-on-year +35 +29 +20
Contract jobs citing MapReduce 62 22 28
As % of all contract IT jobs advertised in the City of London 0.87% 0.33% 0.30%
As % of the Processes & Methodologies category 0.98% 0.37% 0.36%
Number of daily rates quoted 58 16 27
City of London median daily rate £613 £625 £550
Median daily rate % change year-on-year -2.00% +13.64% -8.33%
10th Percentile £525 £550 £404
90th Percentile £676 £669 £715
Central London median daily rate £613 £625 £550
% change year-on-year -2.00% +13.64% +4.76%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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 the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Contract vacancies with a requirement for process or methodology skills 6297 5887 7808
As % of all contract IT jobs advertised in the City of London 88.45% 87.51% 83.93%
Number of daily rates quoted 5003 4710 6215
City of London median daily rate £513 £475 £463
Median daily rate % change year-on-year +7.89% +2.70% +2.78%
10th Percentile £325 £313 £285
90th Percentile £688 £663 £650
Central London median daily rate £500 £475 £451
% change year-on-year +5.26% +5.44% +1.24%
Number of hourly rates quoted 59 55 76
City of London median hourly rate £20.00 £20.00 £20.50
Median hourly rate % change year-on-year - -2.44% +7.89%
10th Percentile £13.34 £12.15 £10.99
90th Percentile £30.90 £53.05 £40.00
Central London median hourly rate £20.25 £19.00 £20.00
% change year-on-year +6.58% -5.00% +11.14%

MapReduce
Job Vacancy Trend in the City of London

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

Job vacancy trend for MapReduce in the City of London

MapReduce
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for MapReduce in the City of London

MapReduce
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing MapReduce in the City of London over the 6 months to 17 November 2017.

Contractor daily rate histogram for MapReduce in the City of London

For the 6 months to 17 November 2017, 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 City of London region with a requirement for MapReduce.

1 59 (95.16%) Hadoop
1 59 (95.16%) Big Data
2 58 (93.55%) Java
3 56 (90.32%) Apache Spark
4 48 (77.42%) Apache Hive
5 44 (70.97%) HDFS
6 38 (61.29%) Kafka
7 34 (54.84%) Apache Flume
8 33 (53.23%) HBase
9 30 (48.39%) Finance
9 30 (48.39%) Oozie
10 27 (43.55%) Oracle
11 26 (41.94%) Agile Software Development
12 25 (40.32%) Banking
13 24 (38.71%) Python
14 22 (35.48%) Sqoop
15 21 (33.87%) Data Modelling
16 20 (32.26%) NoSQL
17 19 (30.65%) Apache
17 19 (30.65%) Jenkins
17 19 (30.65%) Elasticsearch
17 19 (30.65%) DevOps
18 17 (27.42%) Amazon AWS
19 16 (25.81%) Open Source
19 16 (25.81%) Multithreading
19 16 (25.81%) MongoDB
19 16 (25.81%) Hadoop YARN
20 15 (24.19%) Impala
20 15 (24.19%) Analytical Skills
20 15 (24.19%) Ambari

MapReduce
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 56 (90.32%) Apache Spark
2 19 (30.65%) Apache
2 19 (30.65%) Elasticsearch
3 6 (9.68%) Apache Pig
4 5 (8.06%) Oracle Coherence
5 4 (6.45%) Apache Solr
6 1 (1.61%) Oracle SOA Suite
Cloud Services
1 17 (27.42%) Amazon AWS
2 15 (24.19%) GitHub
3 14 (22.58%) Bluemix
3 14 (22.58%) IBM Cloud
Communications & Networking
1 1 (1.61%) Kerberos
Database & Business Intelligence
1 59 (95.16%) Big Data
1 59 (95.16%) Hadoop
2 48 (77.42%) Apache Hive
3 33 (53.23%) HBase
4 22 (35.48%) Sqoop
5 20 (32.26%) NoSQL
6 16 (25.81%) MongoDB
7 15 (24.19%) Impala
7 15 (24.19%) PostgreSQL
8 14 (22.58%) Oracle ODI
9 10 (16.13%) Apache Cassandra
10 4 (6.45%) SQL Server
11 3 (4.84%) Data Warehouse
11 3 (4.84%) Spark SQL
12 2 (3.23%) Relational Database
13 1 (1.61%) Neo4j
13 1 (1.61%) Oracle Database
13 1 (1.61%) Oracle Database 11g
13 1 (1.61%) RDBMS
13 1 (1.61%) Redis
Development Applications
1 19 (30.65%) Jenkins
2 8 (12.90%) Git (software)
3 4 (6.45%) Cucumber
4 3 (4.84%) Maven
4 3 (4.84%) SonarQube
4 3 (4.84%) TeamCity
5 1 (1.61%) Mercurial
5 1 (1.61%) Subversion
5 1 (1.61%) Talend Open Studio
5 1 (1.61%) Travis CI
General
1 30 (48.39%) Finance
2 25 (40.32%) Banking
3 5 (8.06%) Front Office
4 3 (4.84%) Marketing
5 2 (3.23%) Electronics
5 2 (3.23%) Investment Banking
5 2 (3.23%) Manufacturing
5 2 (3.23%) Telecoms
Job Titles
1 22 (35.48%) Java Engineer
2 14 (22.58%) Hadoop Engineer
2 14 (22.58%) Senior Hadoop Engineer
2 14 (22.58%) Senior Java Engineer
3 8 (12.90%) Developer
4 5 (8.06%) Big Data Developer
5 4 (6.45%) Architect
5 4 (6.45%) Data Engineer
5 4 (6.45%) Senior Software Engineer
5 4 (6.45%) Software Engineer
6 3 (4.84%) Big Data Architect
6 3 (4.84%) Big Data Engineer
6 3 (4.84%) Data Architect
6 3 (4.84%) Senior Developer
6 3 (4.84%) Solutions Architect
7 2 (3.23%) Administrator
7 2 (3.23%) Hadoop Administrator
7 2 (3.23%) Java Developer
7 2 (3.23%) Java Pricing Developer
7 2 (3.23%) Migration Specialist
Libraries, Frameworks & Software Standards
1 38 (61.29%) Kafka
2 14 (22.58%) PySpark
3 8 (12.90%) AngularJS
3 8 (12.90%) React
3 8 (12.90%) Redux
3 8 (12.90%) Twitter Bootstrap
4 4 (6.45%) Akka
4 4 (6.45%) Apache Avro
4 4 (6.45%) Gherkin
4 4 (6.45%) OpenCL
4 4 (6.45%) RabbitMQ
4 4 (6.45%) RESTful
5 3 (4.84%) JMS
5 3 (4.84%) JSON
5 3 (4.84%) XML
6 2 (3.23%) Hibernate
6 2 (3.23%) Java EE
6 2 (3.23%) Spring
7 1 (1.61%) Lucene
7 1 (1.61%) Spark Streaming
Miscellaneous
1 15 (24.19%) Analytical Skills
2 4 (6.45%) Derivative
2 4 (6.45%) Greenfield Project
3 3 (4.84%) Credit Risk
3 3 (4.84%) Interest Rate Derivative
3 3 (4.84%) Market Risk
4 1 (1.61%) Virtual Team
Operating Systems
1 9 (14.52%) Linux
1 9 (14.52%) Unix
Processes & Methodologies
1 26 (41.94%) Agile Software Development
2 21 (33.87%) Data Modelling
3 19 (30.65%) DevOps
4 16 (25.81%) Multithreading
4 16 (25.81%) Open Source
5 14 (22.58%) Data Engineering
5 14 (22.58%) Use Case
6 10 (16.13%) TDD
7 9 (14.52%) BDD
8 6 (9.68%) Analytics
9 5 (8.06%) Business Intelligence
9 5 (8.06%) ETL
10 4 (6.45%) Data Architecture
10 4 (6.45%) PnL Attribution
10 4 (6.45%) Risk Management
10 4 (6.45%) Scrum
10 4 (6.45%) Software Engineering
11 3 (4.84%) Data Migration
11 3 (4.84%) SDLC
11 3 (4.84%) Technical Analysis
Programming Languages
1 58 (93.55%) Java
2 24 (38.71%) Python
3 8 (12.90%) JavaScript
4 7 (11.29%) Scala
5 6 (9.68%) SQL
6 3 (4.84%) Bash Shell
6 3 (4.84%) Shell Script
7 2 (3.23%) C#
7 2 (3.23%) C++
7 2 (3.23%) R
Qualifications
1 4 (6.45%) Security Cleared
2 3 (4.84%) DV Cleared
Quality Assurance & Compliance
1 3 (4.84%) Data Quality
System Software
1 44 (70.97%) HDFS
2 34 (54.84%) Apache Flume
3 14 (22.58%) Docker
4 8 (12.90%) Apache ZooKeeper
Systems Management
1 30 (48.39%) Oozie
2 16 (25.81%) Hadoop YARN
3 15 (24.19%) Ambari
4 14 (22.58%) Kubernetes
5 5 (8.06%) Ansible
6 4 (6.45%) Mesos
7 1 (1.61%) Apache Slider
Vendors
1 27 (43.55%) Oracle
2 15 (24.19%) Tableau
3 14 (22.58%) IBM
4 3 (4.84%) Cloudera
5 2 (3.23%) SAP
6 1 (1.61%) Hortonworks
6 1 (1.61%) Informatica
6 1 (1.61%) MapR
6 1 (1.61%) Microsoft
6 1 (1.61%) Talend