The following table provides summary statistics for contract job vacancies advertised in Welwyn Garden City with a requirement for Big Data skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Big Data over the 3 months to 22 March 2017 with a comparison to the 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
22 Mar 2017
Same period 2016 Same period 2015
Big Data
Hertfordshire / Welwyn Garden City
Rank 7 - -
Rank change year-on-year - 0  
Contract jobs citing Big Data 7 0 0
As % of all contract IT jobs advertised in Welwyn Garden City 13.21% - -
As % of the Database & Business Intelligence category 35.00% - -
Number of daily rates quoted 1 0 0
Median daily rate £450 - -
UK excluding London median daily rate £488 £470 £500
% change year-on-year +3.72% -6.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £47.00 £33.06 £35.50
% change year-on-year +42.18% -6.88%  

Big Data is in the database and business intelligence skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Welwyn Garden City with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
Welwyn Garden City
Contract job vacancies with a requirement for database and business intelligence skills 20 4 21
As % of all contract IT job vacancies advertised in Welwyn Garden City 37.74% 6.90% 75.00%
Number of daily rates quoted 7 1 9
Median daily rate £340 £290 £375
Median daily rate % change year-on-year +17.24% -22.66%  
90% offered a daily rate of more than £325 £290 £342
10% offered a daily rate of more than £475 £290 £450
UK excluding London median daily rate £395 £388 £375
% change year-on-year +1.93% +3.33%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £30.25 £33.00 £32.50
% change year-on-year -8.33% +1.53%  

Big Data
Job Vacancy Trend in Welwyn Garden City

The job posting trend of jobs advertised in Welwyn Garden City citing Big Data as a proportion of all contract or permanent IT jobs with a match in the Database & Business Intelligence category.

Job vacancy trend for Big Data in Welwyn Garden City

Big Data
Contractor Daily Rate Trend in Welwyn Garden City

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Big Data in Welwyn Garden City.

Contractor daily rate trend for Big Data in Welwyn Garden City

Big Data
Top 30 Related IT Skills in Welwyn Garden City

For the 6 months to 22 March 2017, IT contractor jobs citing Big Data also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Welwyn Garden City region with a requirement for Big Data.

1 12 (85.71%) Agile Software Development
2 11 (78.57%) DevOps
3 10 (71.43%) Analytics
4 9 (64.29%) Big Data Analytics
4 9 (64.29%) Data Analytics
4 9 (64.29%) Database Security
4 9 (64.29%) Information Assurance
4 9 (64.29%) Security Architecture
4 9 (64.29%) Waterfall
4 9 (64.29%) Risk Management
4 9 (64.29%) Middleware
4 9 (64.29%) Management Information System
4 9 (64.29%) Information Security
5 8 (57.14%) Data Centre
6 4 (28.57%) Retail
6 4 (28.57%) Amazon AWS
7 2 (14.29%) JIRA
7 2 (14.29%) Puppet
7 2 (14.29%) Splunk
7 2 (14.29%) Machine Learning
7 2 (14.29%) Opscode Chef
7 2 (14.29%) Trello
7 2 (14.29%) New Relic
7 2 (14.29%) Ansible
7 2 (14.29%) Docker
7 2 (14.29%) GitHub
7 2 (14.29%) Front Office
7 2 (14.29%) Python
7 2 (14.29%) Terraform
7 2 (14.29%) Jenkins

Big Data
Top Related IT Skills in Welwyn Garden City 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:

Applications
1 1 (7.14%) MS Excel
1 1 (7.14%) MS Office
1 1 (7.14%) MS PowerPoint
Cloud Services
1 4 (28.57%) Amazon AWS
2 2 (14.29%) GitHub
2 2 (14.29%) Trello
3 1 (7.14%) Office 365
Communications & Networking
1 1 (7.14%) Internet
Development Applications
1 2 (14.29%) Jenkins
1 2 (14.29%) JIRA
General
1 4 (28.57%) Retail
2 2 (14.29%) Front Office
3 1 (7.14%) Marketing
Job Titles
1 9 (64.29%) Applications Consultant
1 9 (64.29%) Consultant
1 9 (64.29%) Security Consultant
2 2 (14.29%) Developer
2 2 (14.29%) DevOps Engineer
2 2 (14.29%) Python Developer
2 2 (14.29%) Senior DevOps
2 2 (14.29%) Senior DevOps Engineer
3 1 (7.14%) AWS Developer
3 1 (7.14%) AWS DevOps
3 1 (7.14%) AWS Engineer
3 1 (7.14%) Cloud Developer
3 1 (7.14%) Cloud Engineer
3 1 (7.14%) Delivery Manager
3 1 (7.14%) Help Desk Support
3 1 (7.14%) Senior Cloud Engineer
3 1 (7.14%) Service Manager
3 1 (7.14%) Service Support Manager
3 1 (7.14%) Services Delivery Manager
3 1 (7.14%) Test Consultant
Libraries, Frameworks & Software Standards
1 9 (64.29%) Middleware
Miscellaneous
1 9 (64.29%) Management Information System
2 8 (57.14%) Data Centre
3 1 (7.14%) Credit Risk
Operating Systems
1 1 (7.14%) Android
1 1 (7.14%) Apple iOS
1 1 (7.14%) Windows
1 1 (7.14%) Windows 10
1 1 (7.14%) Windows 7
1 1 (7.14%) Windows 8
1 1 (7.14%) Windows Server
1 1 (7.14%) Windows Server 2008
Processes & Methodologies
1 12 (85.71%) Agile Software Development
2 11 (78.57%) DevOps
3 10 (71.43%) Analytics
4 9 (64.29%) Big Data Analytics
4 9 (64.29%) Data Analytics
4 9 (64.29%) Database Security
4 9 (64.29%) Information Assurance
4 9 (64.29%) Information Security
4 9 (64.29%) Risk Management
4 9 (64.29%) Security Architecture
4 9 (64.29%) Waterfall
5 2 (14.29%) Machine Learning
6 1 (7.14%) Business Intelligence
6 1 (7.14%) Continuous Improvement
6 1 (7.14%) ITIL
6 1 (7.14%) ITSM
6 1 (7.14%) Penetration Testing
6 1 (7.14%) Performance Metrics
6 1 (7.14%) Service Delivery
6 1 (7.14%) Web Analytics
Programming Languages
1 2 (14.29%) Python
2 1 (7.14%) SQL
Qualifications
1 1 (7.14%) PMP
Quality Assurance & Compliance
1 1 (7.14%) SLA
System Software
1 2 (14.29%) Docker
2 1 (7.14%) Active Directory
Systems Management
1 2 (14.29%) Ansible
1 2 (14.29%) Kubernetes
1 2 (14.29%) Opscode Chef
1 2 (14.29%) Puppet
1 2 (14.29%) Terraform
Vendors
1 2 (14.29%) New Relic
1 2 (14.29%) Splunk
2 1 (7.14%) Microsoft