Period
to 18 December 2018

The median contractor rate for a Big Data Developer was £585 per day in advertised job vacancies in the City of London during the 6 months to 18 December 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
18 Dec 2018
Same period 2017 Same period 2016
Rank 241 222 192
Rank change year-on-year -19 -30 +40
Contract jobs requiring a Big Data Developer 15 34 51
As % of all contract IT jobs advertised in the City of London 0.21% 0.47% 0.79%
As % of the Job Titles category 0.22% 0.50% 0.82%
Number of daily rates quoted 13 34 44
City of London median daily rate £585 £650 £650
Median daily rate % change year-on-year -10.00% - +18.18%
10th Percentile £525 £522 £486
90th Percentile £738 £738 £738
Central London median daily rate £600 £650 £650
% change year-on-year -7.69% - +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 6,753 6,809 6,194
% of contract IT jobs with a recognized job title 95.14% 94.62% 95.44%
Number of daily rates quoted 5,313 5,406 4,901
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £300 £313 £313
90th Percentile £675 £688 £663
Central London median daily rate £500 £500 £475
% change year-on-year - +5.26% +5.56%
Number of hourly rates quoted 105 93 69
City of London median hourly rate £18.70 £17.00 £17.50
Median hourly rate % change year-on-year +10.00% -2.86% -4.11%
10th Percentile £13.00 £11.25 £12.50
90th Percentile £26.70 £30.75 £51.11
Central London median hourly rate £18.70 £18.10 £17.17
% change year-on-year +3.31% +5.45% -4.64%

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 18 December 2018.

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

Big Data Developer
Contract Job Locations in the City of London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Big Data Developer within the City of London region over the 6 months to 18 December 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
London Bridge - 4 £550 -
Big Data Developer
Central London

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

For the 6 months to 18 December 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 15 (100.00%) Big Data
2 13 (86.67%) Apache Spark
3 8 (53.33%) Hadoop
4 6 (40.00%) Python
5 5 (33.33%) Java
5 5 (33.33%) Finance
5 5 (33.33%) Kafka
5 5 (33.33%) Apache Hive
5 5 (33.33%) Scala
5 5 (33.33%) Elasticsearch
6 4 (26.67%) NumPy
6 4 (26.67%) Pandas
6 4 (26.67%) PySpark
6 4 (26.67%) Foreign Exchange (FX)
6 4 (26.67%) Splunk
6 4 (26.67%) Microsoft Azure
6 4 (26.67%) Amazon AWS
7 3 (20.00%) Greenfield Project
8 2 (13.33%) Google Cloud Platform
8 2 (13.33%) HDFS
8 2 (13.33%) Data Lake
8 2 (13.33%) Fintech
8 2 (13.33%) SQL
8 2 (13.33%) E-Commerce
8 2 (13.33%) Data Analytics
8 2 (13.33%) Analytics
8 2 (13.33%) Apache Pig
9 1 (6.67%) Big Data Analytics
9 1 (6.67%) Hortonworks
9 1 (6.67%) Cloudera

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 13 (86.67%) Apache Spark
2 5 (33.33%) Elasticsearch
3 2 (13.33%) Apache Pig
Cloud Services
1 4 (26.67%) Amazon AWS
1 4 (26.67%) Microsoft Azure
2 2 (13.33%) Google Cloud Platform
3 1 (6.67%) Amazon EMR
Database & Business Intelligence
1 15 (100.00%) Big Data
2 8 (53.33%) Hadoop
3 5 (33.33%) Apache Hive
4 2 (13.33%) Data Lake
5 1 (6.67%) Amazon Redshift
5 1 (6.67%) Azure SQL Data Warehouse
5 1 (6.67%) Azure SQL Database
5 1 (6.67%) Cosmos DB
5 1 (6.67%) Data Warehouse
5 1 (6.67%) Electronic Patient Records
5 1 (6.67%) MongoDB
5 1 (6.67%) Neo4j
Development Applications
1 1 (6.67%) RStudio
General
1 5 (33.33%) Finance
2 1 (6.67%) Banking
Libraries, Frameworks & Software Standards
1 5 (33.33%) Kafka
2 4 (26.67%) NumPy
2 4 (26.67%) Pandas
2 4 (26.67%) PySpark
3 1 (6.67%) RabbitMQ
Miscellaneous
1 4 (26.67%) Foreign Exchange (FX)
2 3 (20.00%) Greenfield Project
3 2 (13.33%) Fintech
4 1 (6.67%) Algorithms
4 1 (6.67%) Data Structures
Operating Systems
1 1 (6.67%) Linux
Processes & Methodologies
1 2 (13.33%) Analytics
1 2 (13.33%) Data Analytics
1 2 (13.33%) E-Commerce
2 1 (6.67%) Big Data Analytics
2 1 (6.67%) Computer Science
2 1 (6.67%) Content Management
2 1 (6.67%) Data Architecture
2 1 (6.67%) Data Engineering
2 1 (6.67%) DevOps
2 1 (6.67%) ETL
2 1 (6.67%) Open Source
2 1 (6.67%) Problem-Solving
Programming Languages
1 6 (40.00%) Python
2 5 (33.33%) Java
2 5 (33.33%) Scala
3 2 (13.33%) SQL
4 1 (6.67%) R
System Software
1 2 (13.33%) HDFS
2 1 (6.67%) Docker
Systems Management
1 1 (6.67%) Kubernetes
1 1 (6.67%) Terraform
Vendors
1 4 (26.67%) Splunk
2 1 (6.67%) Cloudera
2 1 (6.67%) Hortonworks
2 1 (6.67%) Microsoft
2 1 (6.67%) Teradata