The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Apache ZooKeeper skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apache ZooKeeper over the 3 months to 25 June 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.

Apache ZooKeeper
London / City of London
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 158 159 201
Rank change year-on-year +1 +42  
Contract jobs citing Apache ZooKeeper 5 7 1
As % of all contract IT jobs advertised in the City of London 0.15% 0.21% 0.017%
As % of the System Software category 1.47% 1.92% 0.18%
Number of daily rates quoted 5 6 1
Median daily rate £650 £488 £525
Median daily rate % change year-on-year +33.33% -7.14%  
UK excluding London median daily rate £401 £419 £425
% change year-on-year -4.35% -1.47%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Apache ZooKeeper is in the system software skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for system software skills.

Contract System Software Skills
City of London
Contract job vacancies with a requirement for system software skills 340 364 570
As % of all contract IT job vacancies advertised in the City of London 10.38% 10.95% 9.79%
Number of daily rates quoted 281 302 422
Median daily rate £450 £475 £383
Median daily rate % change year-on-year -5.26% +24.18%  
90% offered a daily rate of more than £190 £250 £240
10% offered a daily rate of more than £600 £625 £550
UK excluding London median daily rate £375 £350 £325
% change year-on-year +7.14% +7.69%  
Number of hourly rates quoted 8 17 35
Median hourly rate £21.25 £19.00 £22.83
Median hourly rate % change year-on-year +11.84% -16.77%  
90% offered a hourly rate of more than £14.00 £12.50 £13.50
10% offered a hourly rate of more than £138.25 £22.00 £28.30
UK excluding London median hourly rate £16.00 £22.00 £17.50
% change year-on-year -27.27% +25.71%  

Apache ZooKeeper
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Apache ZooKeeper as a proportion of all contract or permanent IT jobs with a match in the System Software category.

Job vacancy trend for Apache ZooKeeper in the City of London

Apache ZooKeeper
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 Apache ZooKeeper in the City of London.

Contractor daily rate trend for Apache ZooKeeper in the City of London

Apache ZooKeeper
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Apache ZooKeeper in the City of London over the 3 months to 25 June 2017.

Contractor daily rate histogram for Apache ZooKeeper in the City of London

For the 6 months to 25 June 2017, IT contractor jobs citing Apache ZooKeeper 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 City of London region with a requirement for Apache ZooKeeper.

1 11 (91.67%) Hadoop
2 10 (83.33%) Big Data
2 10 (83.33%) Apache Spark
3 9 (75.00%) HDFS
3 9 (75.00%) HBase
4 8 (66.67%) Kafka
4 8 (66.67%) Python
5 6 (50.00%) Linux
6 5 (41.67%) Finance
6 5 (41.67%) Apache Hive
6 5 (41.67%) Apache Solr
6 5 (41.67%) Banking
7 4 (33.33%) Elasticsearch
7 4 (33.33%) Apache Pig
7 4 (33.33%) MapReduce
7 4 (33.33%) TDD
7 4 (33.33%) Unix
8 3 (25.00%) Java
8 3 (25.00%) Agile Software Development
8 3 (25.00%) Git (software)
8 3 (25.00%) Apache Cassandra
8 3 (25.00%) RabbitMQ
8 3 (25.00%) Hortonworks
8 3 (25.00%) Sqoop
8 3 (25.00%) Jenkins
8 3 (25.00%) Apache Flume
8 3 (25.00%) DevOps
8 3 (25.00%) Ansible
8 3 (25.00%) Greenfield Project
9 2 (16.67%) Hadoop YARN

Apache ZooKeeper
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 10 (83.33%) Apache Spark
2 5 (41.67%) Apache Solr
3 4 (33.33%) Apache Pig
3 4 (33.33%) Elasticsearch
4 1 (8.33%) Apache
Communications & Networking
1 2 (16.67%) Kerberos
2 1 (8.33%) LDAP
2 1 (8.33%) SSL
Database & Business Intelligence
1 11 (91.67%) Hadoop
2 10 (83.33%) Big Data
3 9 (75.00%) HBase
4 5 (41.67%) Apache Hive
5 3 (25.00%) Apache Cassandra
5 3 (25.00%) Sqoop
6 1 (8.33%) Apache Zeppelin
6 1 (8.33%) Data Lake
6 1 (8.33%) Impala
6 1 (8.33%) MySQL
6 1 (8.33%) Redis
Development Applications
1 3 (25.00%) Git (software)
1 3 (25.00%) Jenkins
2 1 (8.33%) Talend Open Studio
General
1 5 (41.67%) Banking
1 5 (41.67%) Finance
2 2 (16.67%) Retail
3 1 (8.33%) Investment Banking
Job Titles
1 6 (50.00%) Developer
2 5 (41.67%) Big Data Developer
3 2 (16.67%) Administrator
3 2 (16.67%) Architect
3 2 (16.67%) Big Data Architect
3 2 (16.67%) Big Data Engineer
3 2 (16.67%) Data Architect
3 2 (16.67%) Data Engineer
3 2 (16.67%) Hadoop Administrator
4 1 (8.33%) Linux Administrator
4 1 (8.33%) Machine Learning Developer
4 1 (8.33%) Python Developer
Libraries, Frameworks & Software Standards
1 8 (66.67%) Kafka
2 3 (25.00%) RabbitMQ
3 1 (8.33%) Apache Tez
Miscellaneous
1 3 (25.00%) Greenfield Project
2 1 (8.33%) Fintech
Operating Systems
1 6 (50.00%) Linux
2 4 (33.33%) Unix
3 1 (8.33%) CentOS
3 1 (8.33%) Fedora
3 1 (8.33%) Red Hat Enterprise Linux
Processes & Methodologies
1 4 (33.33%) MapReduce
1 4 (33.33%) TDD
2 3 (25.00%) Agile Software Development
2 3 (25.00%) DevOps
3 2 (16.67%) E-Commerce
3 2 (16.67%) Stakeholder Management
4 1 (8.33%) Analytics
4 1 (8.33%) Break/Fix
4 1 (8.33%) Capacity Planning
4 1 (8.33%) Data Analytics
4 1 (8.33%) Data Management
4 1 (8.33%) Machine Learning
4 1 (8.33%) Refactoring
Programming Languages
1 8 (66.67%) Python
2 3 (25.00%) Java
3 1 (8.33%) JavaScript
System Software
1 9 (75.00%) HDFS
2 3 (25.00%) Apache Flume
3 1 (8.33%) Active Directory
3 1 (8.33%) Docker
Systems Management
1 3 (25.00%) Ansible
2 2 (16.67%) Hadoop YARN
3 1 (8.33%) Ambari
3 1 (8.33%) Kibana
3 1 (8.33%) Mesos
3 1 (8.33%) Oozie
Vendors
1 3 (25.00%) Hortonworks
2 1 (8.33%) Alteryx
2 1 (8.33%) Cloudera
2 1 (8.33%) Tableau
2 1 (8.33%) Talend