Period
to 14 December 2017

The median contractor rate for a Senior Big Data Developer was £713 per day in advertised job vacancies in the City of London during the 6 months to 14 December 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.

Senior Big Data Developer
Central London > City of London
6 months to
14 Dec 2017
Same period 2016 Same period 2015
Rank 249 221 261
Rank change year-on-year -28 +40 +41
Contract jobs requiring a Senior Big Data Developer 6 15 6
As % of all contract IT jobs advertised in the City of London 0.083% 0.23% 0.071%
As % of the Job Titles category 0.088% 0.24% 0.074%
Number of daily rates quoted 6 15 6
City of London median daily rate £713 £726 £588
Median daily rate % change year-on-year -1.79% +23.49% -2.69%
10th Percentile £613 £629 £363
90th Percentile £744 £738 £675
Central London median daily rate £713 £726 £588
% change year-on-year -1.79% +23.49% -2.69%
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 6796 6238 8063
% of contract IT jobs with a recognized job title 94.52% 95.31% 95.28%
Number of daily rates quoted 5395 4940 6363
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 93 72 111
City of London median hourly rate £17.00 £17.47 £18.50
Median hourly rate % change year-on-year -2.69% -5.57% +8.82%
10th Percentile £11.25 £12.54 £11.17
90th Percentile £30.75 £54.51 £38.75
Central London median hourly rate £18.10 £17.08 £18.00
% change year-on-year +5.96% -5.10% +9.09%

Senior Big Data Developer
Job Vacancy Trend in the City of London

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

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

Senior 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 Senior Big Data Developer in the City of London.

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

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

For the 6 months to 14 December 2017, Senior 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 Senior Big Data Developer in the job title.

1 6 (100.00%) Big Data
2 5 (83.33%) Java
3 4 (66.67%) Agile Software Development
4 3 (50.00%) SQL
4 3 (50.00%) Data Modelling
4 3 (50.00%) Scala
4 3 (50.00%) Hadoop
4 3 (50.00%) HBase
5 2 (33.33%) Data Ingestion
5 2 (33.33%) Apache Flume
5 2 (33.33%) SDLC
5 2 (33.33%) C#
5 2 (33.33%) Test Automation
5 2 (33.33%) BDD
5 2 (33.33%) Apache Hive
5 2 (33.33%) Oozie
5 2 (33.33%) Relational Database
5 2 (33.33%) HDFS
5 2 (33.33%) Impala
5 2 (33.33%) Functional Programming
5 2 (33.33%) Mentoring
5 2 (33.33%) Apache Spark
5 2 (33.33%) Logical Data Model
5 2 (33.33%) RDBMS
5 2 (33.33%) OO
5 2 (33.33%) Data Integration
5 2 (33.33%) Front Office
5 2 (33.33%) Risk Management
5 2 (33.33%) Workflow
5 2 (33.33%) Finance

Senior 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 2 (33.33%) Apache Spark
Database & Business Intelligence
1 6 (100.00%) Big Data
2 3 (50.00%) Hadoop
2 3 (50.00%) HBase
3 2 (33.33%) Apache Hive
3 2 (33.33%) Impala
3 2 (33.33%) RDBMS
3 2 (33.33%) Relational Database
4 1 (16.67%) NoSQL
General
1 2 (33.33%) Finance
1 2 (33.33%) Front Office
2 1 (16.67%) Banking
2 1 (16.67%) Investment Banking
Libraries, Frameworks & Software Standards
1 1 (16.67%) Kafka
1 1 (16.67%) REST
1 1 (16.67%) Samza
Miscellaneous
1 2 (33.33%) Replication
2 1 (16.67%) Greenfield Project
Processes & Methodologies
1 4 (66.67%) Agile Software Development
2 3 (50.00%) Data Modelling
3 2 (33.33%) BDD
3 2 (33.33%) Data Ingestion
3 2 (33.33%) Data Integration
3 2 (33.33%) Functional Programming
3 2 (33.33%) Logical Data Model
3 2 (33.33%) Mentoring
3 2 (33.33%) OO
3 2 (33.33%) Risk Management
3 2 (33.33%) SDLC
3 2 (33.33%) Test Automation
3 2 (33.33%) Workflow
4 1 (16.67%) API Development
4 1 (16.67%) Visualisation
Programming Languages
1 5 (83.33%) Java
2 3 (50.00%) Scala
2 3 (50.00%) SQL
3 2 (33.33%) C#
Qualifications
1 1 (16.67%) SC Cleared
1 1 (16.67%) Security Cleared
System Software
1 2 (33.33%) Apache Flume
1 2 (33.33%) HDFS
2 1 (16.67%) Apache ZooKeeper
Systems Management
1 2 (33.33%) Oozie