Period
to 17 August 2018

The median contractor rate for a Big Data Developer was £625 per day in advertised job vacancies in the City of London during the 6 months to 17 August 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
17 Aug 2018
Same period 2017 Same period 2016
Rank 234 186 211
Rank change year-on-year -48 +25 +66
Contract jobs requiring a Big Data Developer 27 58 32
As % of all contract IT jobs advertised in the City of London 0.38% 0.88% 0.47%
As % of the Job Titles category 0.40% 0.92% 0.49%
Number of daily rates quoted 21 58 29
City of London median daily rate £625 £625 £550
Median daily rate % change year-on-year - +13.64% -8.33%
10th Percentile £521 £507 £388
90th Percentile £675 £738 £673
Central London median daily rate £625 £625 £525
% change year-on-year - +19.05% -12.50%
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 6,689 6,313 6,476
% of contract IT jobs with a recognized job title 94.97% 95.54% 95.38%
Number of daily rates quoted 5,245 4,850 5,200
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £313 £313 £300
90th Percentile £681 £675 £650
Central London median daily rate £500 £495 £455
% change year-on-year +1.01% +8.79% +1.11%
Number of hourly rates quoted 131 75 70
City of London median hourly rate £18.70 £18.10 £19.00
Median hourly rate % change year-on-year +3.31% -4.74% +2.70%
10th Percentile £13.25 £13.25 £11.25
90th Percentile £28.55 £30.45 £35.86
Central London median hourly rate £18.70 £18.69 £19.00
% change year-on-year +0.05% -1.63% +5.56%

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 17 August 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 17 August 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 27 (100.00%) Big Data
2 23 (85.19%) Hadoop
3 21 (77.78%) Apache Spark
4 18 (66.67%) Java
5 14 (51.85%) Apache Hive
6 13 (48.15%) Kafka
6 13 (48.15%) Scala
6 13 (48.15%) Amazon AWS
7 12 (44.44%) Agile Software Development
8 11 (40.74%) Python
8 11 (40.74%) HDFS
9 10 (37.04%) HBase
9 10 (37.04%) TDD
9 10 (37.04%) Greenfield Project
10 9 (33.33%) MapReduce
11 8 (29.63%) Apache Pig
12 7 (25.93%) Elasticsearch
12 7 (25.93%) SQL
12 7 (25.93%) Git (software)
13 6 (22.22%) E-Commerce
13 6 (22.22%) JMS
13 6 (22.22%) Linux
13 6 (22.22%) DevOps
13 6 (22.22%) Jenkins
13 6 (22.22%) NoSQL
13 6 (22.22%) Microsoft Azure
13 6 (22.22%) Collaborative Working
14 5 (18.52%) Finance
14 5 (18.52%) Apache Solr
14 5 (18.52%) Banking

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 21 (77.78%) Apache Spark
2 8 (29.63%) Apache Pig
3 7 (25.93%) Elasticsearch
4 5 (18.52%) Apache Solr
5 4 (14.81%) Apache
6 1 (3.70%) Apache Airflow
6 1 (3.70%) Tomcat
Cloud Services
1 13 (48.15%) Amazon AWS
2 6 (22.22%) Microsoft Azure
3 4 (14.81%) Amazon EMR
4 3 (11.11%) Amazon Kinesis
4 3 (11.11%) Amazon S3
4 3 (11.11%) AWS Lambda
4 3 (11.11%) Cloud Computing
4 3 (11.11%) Google Cloud Platform
4 3 (11.11%) Serverless
5 1 (3.70%) Azure Data Factory
5 1 (3.70%) GitHub
5 1 (3.70%) Yarn
Communications & Networking
1 3 (11.11%) Kerberos
2 1 (3.70%) HTTP
Database & Business Intelligence
1 27 (100.00%) Big Data
2 23 (85.19%) Hadoop
3 14 (51.85%) Apache Hive
4 10 (37.04%) HBase
5 6 (22.22%) NoSQL
6 4 (14.81%) Amazon Redshift
6 4 (14.81%) Relational Database
7 3 (11.11%) Amazon Athena
7 3 (11.11%) Apache Cassandra
7 3 (11.11%) Sqoop
8 2 (7.41%) Data Lake
8 2 (7.41%) Impala
8 2 (7.41%) MongoDB
9 1 (3.70%) Cosmos DB
9 1 (3.70%) Electronic Patient Records
9 1 (3.70%) MySQL
9 1 (3.70%) Neo4j
9 1 (3.70%) PostgreSQL
9 1 (3.70%) Presto
9 1 (3.70%) SQL Server
Development Applications
1 7 (25.93%) Git (software)
2 6 (22.22%) Jenkins
3 1 (3.70%) JIRA
3 1 (3.70%) Maven
3 1 (3.70%) RStudio
3 1 (3.70%) Subversion
General
1 5 (18.52%) Banking
1 5 (18.52%) Finance
2 2 (7.41%) Private Banking
3 1 (3.70%) Investment Banking
3 1 (3.70%) Marketing
3 1 (3.70%) Publishing
Libraries, Frameworks & Software Standards
1 13 (48.15%) Kafka
2 6 (22.22%) JMS
3 4 (14.81%) REST
4 3 (11.11%) JSON
4 3 (11.11%) SOAP
4 3 (11.11%) XML
5 2 (7.41%) HTML
5 2 (7.41%) HTML5
5 2 (7.41%) J2EE
5 2 (7.41%) RabbitMQ
6 1 (3.70%) Akka
6 1 (3.70%) AngularJS
6 1 (3.70%) D3.js
6 1 (3.70%) Elastic Stack
6 1 (3.70%) Hibernate
6 1 (3.70%) JDBC
6 1 (3.70%) RESTful
6 1 (3.70%) Spring
6 1 (3.70%) Spring Boot
6 1 (3.70%) WPF
Miscellaneous
1 10 (37.04%) Greenfield Project
2 2 (7.41%) Algorithms
3 1 (3.70%) Data Centre
3 1 (3.70%) Foreign Exchange (FX)
3 1 (3.70%) Social Network
Operating Systems
1 6 (22.22%) Linux
2 3 (11.11%) Unix
Processes & Methodologies
1 12 (44.44%) Agile Software Development
2 10 (37.04%) TDD
3 9 (33.33%) MapReduce
4 6 (22.22%) Collaborative Working
4 6 (22.22%) DevOps
4 6 (22.22%) E-Commerce
5 4 (14.81%) Continuous Delivery
5 4 (14.81%) Continuous Integration
5 4 (14.81%) Data Engineering
5 4 (14.81%) Data Modelling
5 4 (14.81%) ETL
6 3 (11.11%) BDD
6 3 (11.11%) Coaching
6 3 (11.11%) Data Cleansing
6 3 (11.11%) Data Migration
6 3 (11.11%) Data Transformation
6 3 (11.11%) Microservices
6 3 (11.11%) Migration
6 3 (11.11%) Open Source
6 3 (11.11%) Unit Testing
Programming Languages
1 18 (66.67%) Java
2 13 (48.15%) Scala
3 11 (40.74%) Python
4 7 (25.93%) SQL
5 3 (11.11%) Bash Shell
6 2 (7.41%) Java 8
7 1 (3.70%) C#
7 1 (3.70%) ES6
7 1 (3.70%) JavaScript
7 1 (3.70%) R
7 1 (3.70%) TypeScript
Qualifications
1 3 (11.11%) Security Cleared
2 2 (7.41%) DV Cleared
3 1 (3.70%) SC Cleared
Quality Assurance & Compliance
1 3 (11.11%) Data Quality
2 1 (3.70%) GCP
2 1 (3.70%) QA
System Software
1 11 (40.74%) HDFS
2 3 (11.11%) Apache ZooKeeper
3 1 (3.70%) Apache Flume
3 1 (3.70%) Docker
Systems Management
1 3 (11.11%) Ansible
1 3 (11.11%) Hadoop YARN
2 2 (7.41%) Oozie
3 1 (3.70%) Kibana
3 1 (3.70%) logstash
3 1 (3.70%) Terraform
Vendors
1 4 (14.81%) Cloudera
1 4 (14.81%) Hortonworks
2 2 (7.41%) Google
2 2 (7.41%) Tableau
3 1 (3.70%) FXall
3 1 (3.70%) Microsoft
3 1 (3.70%) Oracle
3 1 (3.70%) Reuters
3 1 (3.70%) Teradata