Period
to 24 November 2017

The median contractor rate for a Big Data Developer was £650 per day in advertised job vacancies in the City of London during the 6 months to 24 November 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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.

Big Data Developer
Central London > City of London
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 203 194 251
Rank change year-on-year -9 +57 +38
Contract jobs requiring a Big Data Developer 38 46 20
As % of all contract IT jobs advertised in the City of London 0.53% 0.69% 0.22%
As % of the Job Titles category 0.56% 0.72% 0.23%
Number of daily rates quoted 38 41 19
City of London median daily rate £650 £650 £550
Median daily rate % change year-on-year - +18.18% +10.00%
10th Percentile £520 £475 £363
90th Percentile £738 £738 £675
Central London median daily rate £650 £650 £550
% change year-on-year - +18.18% +10.00%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in the City of London. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of contract jobs in our overall sample.

All Contract IT Job Vacancies
City of London
Contract vacancies in the City of London with a recognized job title 6755 6365 8666
% of contract IT jobs with a recognized job title 94.46% 95.47% 95.35%
Number of daily rates quoted 5342 5051 6805
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £313 £275
90th Percentile £688 £663 £650
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 90 77 128
City of London median hourly rate £18.00 £17.25 £19.25
Median hourly rate % change year-on-year +4.35% -10.39% +10.00%
10th Percentile £11.25 £11.50 £10.35
90th Percentile £30.75 £48.40 £39.13
Central London median hourly rate £18.40 £17.00 £18.00
% change year-on-year +8.22% -5.56% +5.88%

Big Data Developer
Job Vacancy Trend in the City of London

Job postings that featured Big Data Developer in the job title as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Big Data Developer in the City of London

Big Data Developer
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 Big Data Developer in the City of London.

Contractor daily rate trend for Big Data Developer in the City of London

Big Data Developer
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Big Data Developer in the City of London over the 6 months to 24 November 2017.

Contractor daily rate histogram for Big Data Developer in the City of London

Big Data Developer Skill Set
Top 30 Co-occurring IT Skills in the City of London

For the 6 months to 24 November 2017, Big Data Developer contract jobs required the following IT 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 featuring Big Data Developer in the job title.

1 38 (100.00%) Big Data
2 31 (81.58%) Java
3 27 (71.05%) Apache Spark
4 24 (63.16%) Hadoop
5 21 (55.26%) Agile Software Development
6 20 (52.63%) Kafka
7 19 (50.00%) Scala
8 17 (44.74%) HBase
9 16 (42.11%) TDD
10 14 (36.84%) Apache Hive
11 13 (34.21%) Akka
12 12 (31.58%) HDFS
12 12 (31.58%) Finance
13 11 (28.95%) BDD
14 10 (26.32%) Data Modelling
15 9 (23.68%) Python
15 9 (23.68%) Impala
15 9 (23.68%) Apache Cassandra
16 8 (21.05%) SQL
16 8 (21.05%) Banking
16 8 (21.05%) Microservices
16 8 (21.05%) SDLC
17 7 (18.42%) Market Risk
18 6 (15.79%) REST
19 5 (13.16%) MapReduce
19 5 (13.16%) DevOps
19 5 (13.16%) Oozie
19 5 (13.16%) Jenkins
19 5 (13.16%) Spring
20 4 (10.53%) Spring MVC

Big Data Developer Skill Set
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 27 (71.05%) Apache Spark
2 4 (10.53%) Elasticsearch
3 2 (5.26%) Apache
3 2 (5.26%) Apache Pig
3 2 (5.26%) Apache Solr
3 2 (5.26%) Confluence
Cloud Services
1 3 (7.89%) Amazon AWS
Database & Business Intelligence
1 38 (100.00%) Big Data
2 24 (63.16%) Hadoop
3 17 (44.74%) HBase
4 14 (36.84%) Apache Hive
5 9 (23.68%) Apache Cassandra
5 9 (23.68%) Impala
6 2 (5.26%) Data Warehouse
6 2 (5.26%) MongoDB
6 2 (5.26%) NoSQL
6 2 (5.26%) PostgreSQL
6 2 (5.26%) RDBMS
6 2 (5.26%) Relational Database
7 1 (2.63%) DataStage
7 1 (2.63%) SQL Server
7 1 (2.63%) SQL Server 2014
7 1 (2.63%) Sqoop
Development Applications
1 5 (13.16%) Jenkins
2 3 (7.89%) Git (software)
2 3 (7.89%) JIRA
3 1 (2.63%) Cucumber
3 1 (2.63%) Eclipse
3 1 (2.63%) JUnit
3 1 (2.63%) Maven
3 1 (2.63%) Mockito
General
1 12 (31.58%) Finance
2 8 (21.05%) Banking
3 4 (10.53%) Investment Banking
4 3 (7.89%) Front Office
5 2 (5.26%) Advertising
6 1 (2.63%) Electronics
6 1 (2.63%) Manufacturing
6 1 (2.63%) Marketing
6 1 (2.63%) Telecoms
Libraries, Frameworks & Software Standards
1 20 (52.63%) Kafka
2 13 (34.21%) Akka
3 6 (15.79%) REST
4 5 (13.16%) Spring
5 4 (10.53%) JSON
5 4 (10.53%) RESTful
5 4 (10.53%) Samza
5 4 (10.53%) Spring MVC
6 3 (7.89%) Web Services
7 2 (5.26%) Guice
7 2 (5.26%) Hibernate
7 2 (5.26%) JPA
7 2 (5.26%) JSON Schema
7 2 (5.26%) RabbitMQ
8 1 (2.63%) Apache Avro
8 1 (2.63%) Apache Commons
8 1 (2.63%) Cascading
8 1 (2.63%) Gherkin
8 1 (2.63%) OpenCL
8 1 (2.63%) XML
Miscellaneous
1 7 (18.42%) Market Risk
2 3 (7.89%) Greenfield Project
3 2 (5.26%) Derivative
3 2 (5.26%) Replication
4 1 (2.63%) Algorithms
4 1 (2.63%) Computer Science
4 1 (2.63%) Credit Derivative
4 1 (2.63%) Credit Risk
4 1 (2.63%) Equities
4 1 (2.63%) Foreign Exchange (FX)
4 1 (2.63%) Linked Data
4 1 (2.63%) Semantic Web
Operating Systems
1 2 (5.26%) Unix
2 1 (2.63%) Linux
Processes & Methodologies
1 21 (55.26%) Agile Software Development
2 16 (42.11%) TDD
3 11 (28.95%) BDD
4 10 (26.32%) Data Modelling
5 8 (21.05%) Microservices
5 8 (21.05%) SDLC
6 5 (13.16%) DevOps
6 5 (13.16%) MapReduce
7 4 (10.53%) MVC
7 4 (10.53%) Risk Management
8 3 (7.89%) ETL
8 3 (7.89%) Functional Programming
8 3 (7.89%) Mentoring
8 3 (7.89%) Pair Programming
8 3 (7.89%) Scrum
8 3 (7.89%) Visualisation
9 2 (5.26%) Data Architecture
9 2 (5.26%) Logical Data Model
9 2 (5.26%) Software Engineering
9 2 (5.26%) Test Automation
Programming Languages
1 31 (81.58%) Java
2 19 (50.00%) Scala
3 9 (23.68%) Python
4 8 (21.05%) SQL
5 2 (5.26%) C#
5 2 (5.26%) Groovy
6 1 (2.63%) Bash Shell
6 1 (2.63%) PL/SQL
6 1 (2.63%) SPARQL
Qualifications
1 3 (7.89%) Security Cleared
2 2 (5.26%) SC Cleared
3 1 (2.63%) Computer Science Degree
3 1 (2.63%) Degree
3 1 (2.63%) DV Cleared
Quality Assurance & Compliance
1 1 (2.63%) Data Quality
1 1 (2.63%) QA
System Software
1 12 (31.58%) HDFS
2 4 (10.53%) Apache ZooKeeper
2 4 (10.53%) Docker
3 3 (7.89%) Apache Flume
Systems Management
1 5 (13.16%) Oozie
2 4 (10.53%) Ansible
3 3 (7.89%) Hadoop YARN
4 2 (5.26%) Ambari
5 1 (2.63%) Mesos
5 1 (2.63%) Opscode Chef
Vendors
1 1 (2.63%) Cloudera
1 1 (2.63%) MapR
1 1 (2.63%) Oracle
1 1 (2.63%) SAP
1 1 (2.63%) Tableau
1 1 (2.63%) Teradata