Period
to 21 February 2018

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 21 February 2018.

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
21 Feb 2018
Same period 2017 Same period 2016
Rank 228 182 194
Rank change year-on-year -46 +12 +81
Contract jobs requiring a Big Data Developer 25 48 30
As % of all contract IT jobs advertised in the City of London 0.35% 0.78% 0.45%
As % of the Job Titles category 0.37% 0.82% 0.47%
Number of daily rates quoted 23 41 27
City of London median daily rate £650 £650 £525
Median daily rate % change year-on-year - +23.81% -
10th Percentile £533 £563 £363
90th Percentile £745 £738 £625
Central London median daily rate £625 £650 £525
% change year-on-year -3.85% +23.81% -
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 6,693 5,885 6,352
% of contract IT jobs with a recognized job title 94.29% 95.43% 95.76%
Number of daily rates quoted 5,317 4,666 5,019
City of London median daily rate £500 £475 £473
Median daily rate % change year-on-year +5.26% +0.53% +8.00%
10th Percentile £313 £313 £281
90th Percentile £688 £663 £650
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.26%
Number of hourly rates quoted 98 72 96
City of London median hourly rate £16.25 £18.35 £20.00
Median hourly rate % change year-on-year -11.44% -8.24% +14.27%
10th Percentile £11.25 £12.53 £11.50
90th Percentile £34.45 £54.51 £42.00
Central London median hourly rate £18.00 £17.50 £19.99
% change year-on-year +2.86% -12.46% +14.39%

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 21 February 2018.

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 21 February 2018, Big Data Developer contract jobs required the following IT skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region featuring Big Data Developer in the job title.

1 25 (100.00%) Big Data
2 21 (84.00%) Java
3 19 (76.00%) Hadoop
3 19 (76.00%) Kafka
3 19 (76.00%) Apache Spark
4 15 (60.00%) Agile Software Development
5 14 (56.00%) Scala
6 13 (52.00%) Apache Hive
7 11 (44.00%) TDD
7 11 (44.00%) SQL
8 10 (40.00%) HBase
9 8 (32.00%) HDFS
9 8 (32.00%) Akka
9 8 (32.00%) Finance
10 7 (28.00%) Banking
10 7 (28.00%) Python
10 7 (28.00%) Data Modelling
10 7 (28.00%) DevOps
10 7 (28.00%) BDD
10 7 (28.00%) Amazon AWS
11 6 (24.00%) MapReduce
11 6 (24.00%) Ansible
12 5 (20.00%) Advertising
12 5 (20.00%) Impala
12 5 (20.00%) Apache Flume
12 5 (20.00%) NoSQL
13 4 (16.00%) Oozie
13 4 (16.00%) Apache
13 4 (16.00%) Visualisation
13 4 (16.00%) SDLC

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 19 (76.00%) Apache Spark
2 4 (16.00%) Apache
3 2 (8.00%) Elasticsearch
3 2 (8.00%) IPython
3 2 (8.00%) Jupyter
4 1 (4.00%) Apache Pig
4 1 (4.00%) Apache Solr
4 1 (4.00%) Tomcat
Applications
1 2 (8.00%) SPSS
Cloud Services
1 7 (28.00%) Amazon AWS
2 2 (8.00%) Amazon Kinesis
2 2 (8.00%) GitHub
3 1 (4.00%) Amazon EMR
3 1 (4.00%) Amazon S3
3 1 (4.00%) AWS Lambda
3 1 (4.00%) Cloud Computing
3 1 (4.00%) Google Cloud Platform
3 1 (4.00%) Microsoft Azure
3 1 (4.00%) Serverless
3 1 (4.00%) Yarn
Communications & Networking
1 1 (4.00%) Kerberos
Database & Business Intelligence
1 25 (100.00%) Big Data
2 19 (76.00%) Hadoop
3 13 (52.00%) Apache Hive
4 10 (40.00%) HBase
5 5 (20.00%) Impala
5 5 (20.00%) NoSQL
6 4 (16.00%) Data Lake
7 3 (12.00%) Flink
8 2 (8.00%) Amazon Redshift
8 2 (8.00%) Apache Cassandra
8 2 (8.00%) Presto
9 1 (4.00%) Amazon Athena
9 1 (4.00%) Data Warehouse
9 1 (4.00%) PostgreSQL
9 1 (4.00%) RDBMS
9 1 (4.00%) Relational Database
9 1 (4.00%) SQL Server
9 1 (4.00%) SQL Server 2014
9 1 (4.00%) Sqoop
Development Applications
1 3 (12.00%) Git (software)
2 2 (8.00%) GoCD
2 2 (8.00%) Vagrant
3 1 (4.00%) Cucumber
3 1 (4.00%) Jenkins
3 1 (4.00%) Maven
General
1 8 (32.00%) Finance
2 7 (28.00%) Banking
3 5 (20.00%) Advertising
4 3 (12.00%) Investment Banking
5 1 (4.00%) Electronics
5 1 (4.00%) Manufacturing
5 1 (4.00%) Marketing
5 1 (4.00%) Private Banking
5 1 (4.00%) Telecoms
Libraries, Frameworks & Software Standards
1 19 (76.00%) Kafka
2 8 (32.00%) Akka
3 3 (12.00%) REST
4 2 (8.00%) JMS
4 2 (8.00%) Samza
4 2 (8.00%) Web Services
5 1 (4.00%) Apache Avro
5 1 (4.00%) Gherkin
5 1 (4.00%) Hibernate
5 1 (4.00%) HTML
5 1 (4.00%) HTML5
5 1 (4.00%) J2EE
5 1 (4.00%) JSON
5 1 (4.00%) OpenCL
5 1 (4.00%) RabbitMQ
5 1 (4.00%) React
5 1 (4.00%) RESTful
5 1 (4.00%) Spring
5 1 (4.00%) WPF
5 1 (4.00%) XML
Miscellaneous
1 4 (16.00%) Greenfield Project
2 3 (12.00%) Algorithms
2 3 (12.00%) Market Risk
3 2 (8.00%) Derivative
3 2 (8.00%) Foreign Exchange (FX)
4 1 (4.00%) Credit Derivative
4 1 (4.00%) Equities
4 1 (4.00%) Replication
Operating Systems
1 2 (8.00%) Linux
2 1 (4.00%) Unix
Processes & Methodologies
1 15 (60.00%) Agile Software Development
2 11 (44.00%) TDD
3 7 (28.00%) BDD
3 7 (28.00%) Data Modelling
3 7 (28.00%) DevOps
4 6 (24.00%) MapReduce
5 4 (16.00%) Data Science
5 4 (16.00%) SDLC
5 4 (16.00%) Visualisation
6 3 (12.00%) Continuous Delivery
6 3 (12.00%) Data Architecture
6 3 (12.00%) ETL
6 3 (12.00%) Machine Learning
6 3 (12.00%) Software Engineering
7 2 (8.00%) Data Integration
7 2 (8.00%) Data Visualisation
7 2 (8.00%) High Availability
7 2 (8.00%) Open Source
7 2 (8.00%) Risk Management
7 2 (8.00%) Test Automation
Programming Languages
1 21 (84.00%) Java
2 14 (56.00%) Scala
3 11 (44.00%) SQL
4 7 (28.00%) Python
5 2 (8.00%) C#
5 2 (8.00%) R
6 1 (4.00%) ES6
6 1 (4.00%) JavaScript
6 1 (4.00%) TypeScript
Qualifications
1 3 (12.00%) Security Cleared
2 2 (8.00%) SC Cleared
3 1 (4.00%) DV Cleared
Quality Assurance & Compliance
1 1 (4.00%) Data Quality
System Software
1 8 (32.00%) HDFS
2 5 (20.00%) Apache Flume
3 3 (12.00%) Apache ZooKeeper
3 3 (12.00%) Docker
Systems Management
1 6 (24.00%) Ansible
2 4 (16.00%) Oozie
3 2 (8.00%) Hadoop YARN
4 1 (4.00%) Mesos
4 1 (4.00%) Opscode Chef
4 1 (4.00%) Terraform
Vendors
1 3 (12.00%) Tableau
2 2 (8.00%) MapR
3 1 (4.00%) Cloudera
3 1 (4.00%) FXall
3 1 (4.00%) Google
3 1 (4.00%) Oracle
3 1 (4.00%) Reuters
3 1 (4.00%) SAP
3 1 (4.00%) Splunk