The median contractor rate for a Big Data Architect was £650 per day in advertised job vacancies in the City of London during the 3 months to 23 March 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.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Big Data Architect
London / City of London
Rank 146 156 191
Rank change year-on-year +10 +35  
Contract jobs requiring a Big Data Architect 7 5 5
As % of all contract IT jobs advertised in the City of London 0.23% 0.15% 0.099%
As % of the Job Titles category 0.25% 0.16% 0.10%
Number of daily rates quoted 4 5 4
Median daily rate £650 £625 £539
Median daily rate % change year-on-year +4.00% +16.00%  
90% offered a daily rate of more than £633 £538 £459
10% offered a daily rate of more than £668 £742 £698
UK excluding London median daily rate £600 £700 £489
% change year-on-year -14.28% +43.22%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

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

Contract IT Job Roles
City of London
Contract job vacancies with a job title containing a recognized job role 2852 3136 4830
As % of all contract IT job vacancies advertised in the City of London 95.23% 95.38% 96.06%
Number of daily rates quoted 2214 2501 3637
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £313 £300 £280
10% offered a daily rate of more than £650 £625 £600
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 30 46 74
Median hourly rate £19.00 £19.99 £18.50
Median hourly rate % change year-on-year -4.96% +8.06%  
90% offered a hourly rate of more than £13.50 £12.00 £12.50
10% offered a hourly rate of more than £29.38 £47.50 £27.37
UK excluding London median hourly rate £17.50 £20.00 £17.00
% change year-on-year -12.50% +17.64%  

Big Data Architect
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London that featured Big Data Architect in the job title.

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

Big Data Architect
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 Architect in the City of London.

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

Big Data Architect Skill Set
Top 30 Related IT Skills in the City of London

For the 6 months to 23 March 2017, Big Data Architect 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 Architect in the job title.

1 19 (100.00%) Big Data
2 14 (73.68%) Hadoop
3 9 (47.37%) Apache Spark
4 6 (31.58%) Data Warehouse
4 6 (31.58%) Retail
5 5 (26.32%) SQL
5 5 (26.32%) Machine Learning
5 5 (26.32%) MapReduce
6 4 (21.05%) Data Quality
6 4 (21.05%) Sqoop
6 4 (21.05%) Finance
6 4 (21.05%) Data Modelling
6 4 (21.05%) ETL
6 4 (21.05%) Agile Software Development
7 3 (15.79%) Banking
7 3 (15.79%) E-Commerce
7 3 (15.79%) Data Architecture
7 3 (15.79%) Java
7 3 (15.79%) Web Services
7 3 (15.79%) Amazon EMR
7 3 (15.79%) Algorithms
7 3 (15.79%) Hortonworks
7 3 (15.79%) Kafka
7 3 (15.79%) Apache Flume
7 3 (15.79%) Amazon AWS
7 3 (15.79%) Apache Hive
7 3 (15.79%) Data Ingestion
8 2 (10.53%) Data Lake
8 2 (10.53%) Analytics
8 2 (10.53%) HBase

Big Data Architect Skill Set
Top Related 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 9 (47.37%) Apache Spark
2 1 (5.26%) Elasticsearch
Cloud Services
1 3 (15.79%) Amazon AWS
1 3 (15.79%) Amazon EMR
2 1 (5.26%) Azure Machine Learning
2 1 (5.26%) Data Lake Analytics
2 1 (5.26%) Microsoft Azure
Database & Business Intelligence
1 19 (100.00%) Big Data
2 14 (73.68%) Hadoop
3 6 (31.58%) Data Warehouse
4 4 (21.05%) Sqoop
5 3 (15.79%) Apache Hive
6 2 (10.53%) Data Lake
6 2 (10.53%) HBase
7 1 (5.26%) Apache Cassandra
7 1 (5.26%) HDInsight
7 1 (5.26%) Impala
7 1 (5.26%) NoSQL
7 1 (5.26%) Oracle Database
7 1 (5.26%) Power BI
7 1 (5.26%) Relational Database
7 1 (5.26%) SQL Server
General
1 6 (31.58%) Retail
2 4 (21.05%) Finance
3 3 (15.79%) Banking
4 2 (10.53%) Retail Banking
Libraries, Frameworks & Software Standards
1 3 (15.79%) Kafka
1 3 (15.79%) Web Services
Miscellaneous
1 3 (15.79%) Algorithms
2 1 (5.26%) Market Risk
2 1 (5.26%) Tandem
2 1 (5.26%) User Experience
Operating Systems
1 1 (5.26%) Linux
1 1 (5.26%) Unix
Processes & Methodologies
1 5 (26.32%) Machine Learning
1 5 (26.32%) MapReduce
2 4 (21.05%) Agile Software Development
2 4 (21.05%) Data Modelling
2 4 (21.05%) ETL
3 3 (15.79%) Data Architecture
3 3 (15.79%) Data Ingestion
3 3 (15.79%) E-Commerce
4 2 (10.53%) Analytics
4 2 (10.53%) Stakeholder Management
5 1 (5.26%) Business Intelligence
5 1 (5.26%) Data Cleansing
5 1 (5.26%) Data Governance
5 1 (5.26%) Data Management
5 1 (5.26%) Data Mapping
5 1 (5.26%) Data Transformation
5 1 (5.26%) SDLC
5 1 (5.26%) Statistics
5 1 (5.26%) Stress Testing
Programming Languages
1 5 (26.32%) SQL
2 3 (15.79%) Java
3 1 (5.26%) C++
3 1 (5.26%) Python
3 1 (5.26%) R
3 1 (5.26%) Scala
Qualifications
1 1 (5.26%) BC Cleared
1 1 (5.26%) BPSS Clearance
1 1 (5.26%) Security Cleared
Quality Assurance & Compliance
1 4 (21.05%) Data Quality
System Software
1 3 (15.79%) Apache Flume
2 2 (10.53%) Apache ZooKeeper
2 2 (10.53%) HDFS
Vendors
1 3 (15.79%) Hortonworks
2 2 (10.53%) Splunk
3 1 (5.26%) Microsoft
3 1 (5.26%) Oracle