Period
to 20 April 2019

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Blockchain skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Blockchain over the 6 months to 20 April 2019 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.

Blockchain
Central London > City of London
6 months to
20 Apr 2019
Same period 2018 Same period 2017
Rank 183 195 218
Rank change year-on-year +12 +23 +14
Contract jobs citing Blockchain 62 64 12
As % of all contract IT jobs advertised in the City of London 0.92% 0.91% 0.19%
As % of the Database & Business Intelligence category 3.58% 3.68% 0.69%
Number of daily rates quoted 51 52 9
City of London median daily rate £625 £553 £550
Median daily rate % change year-on-year +13.12% +0.45% -
10th Percentile £475 £413 £313
90th Percentile £750 £750 £688
Central London median daily rate £575 £525 £550
% change year-on-year +9.52% -4.55% -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Blockchain is in the Databases and Business Intelligence category. The following 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 database or business intelligence skills.

All Database and Business Intelligence Skills
City of London
Contract vacancies with a requirement for database or business intelligence skills 1,734 1,741 1,737
As % of all contract IT jobs advertised in the City of London 25.72% 24.73% 28.05%
Number of daily rates quoted 1,378 1,470 1,386
City of London median daily rate £538 £514 £488
Median daily rate % change year-on-year +4.62% +5.38% +2.63%
10th Percentile £406 £363 £325
90th Percentile £675 £675 £650
Central London median daily rate £525 £513 £475
% change year-on-year +2.44% +7.89% -
Number of hourly rates quoted 8 10 1
City of London median hourly rate £35.00 £25.25 £22.34
Median hourly rate % change year-on-year +38.61% +13.05% +17.55%
10th Percentile £29.43 £20.41 £21.67
90th Percentile £57.78 £36.90 £23.00
Central London median hourly rate £35.00 £29.00 £22.34
% change year-on-year +20.69% +29.84% +17.55%

Blockchain
Job Vacancy Trend in the City of London

Job postings citing Blockchain as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Blockchain in the City of London

Blockchain
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 Blockchain in the City of London.

Contractor daily rate trend for Blockchain in the City of London

Blockchain
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Blockchain in the City of London over the 6 months to 20 April 2019.

Contractor daily rate histogram for Blockchain in the City of London

For the 6 months to 20 April 2019, IT contractor jobs citing Blockchain also mentioned the following 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 with a requirement for Blockchain.

1 23 (37.10%) DevOps
1 23 (37.10%) Kubernetes
2 21 (33.87%) Docker
3 20 (32.26%) Python
4 17 (27.42%) Finance
5 16 (25.81%) Artificial Intelligence
5 16 (25.81%) MongoDB
5 16 (25.81%) Distributed Ledger
6 15 (24.19%) Scala
7 14 (22.58%) Kafka
7 14 (22.58%) Agile Software Development
7 14 (22.58%) JavaScript
7 14 (22.58%) Systems Engineering
8 13 (20.97%) HTML
9 12 (19.35%) CSS
9 12 (19.35%) OAuth
9 12 (19.35%) Fintech
9 12 (19.35%) React
10 11 (17.74%) User Experience
10 11 (17.74%) Big Data
10 11 (17.74%) Java
11 10 (16.13%) Git (software)
11 10 (16.13%) OAuth2
11 10 (16.13%) ES6
11 10 (16.13%) GraphQL
11 10 (16.13%) Wireframes
12 9 (14.52%) Serverless
12 9 (14.52%) JSX
12 9 (14.52%) Go
12 9 (14.52%) Test Automation

Blockchain
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 3 (4.84%) Elasticsearch
1 3 (4.84%) Hyperledger
2 2 (3.23%) Ethereum
3 1 (1.61%) SharePoint
Business Applications
1 16 (25.81%) Distributed Ledger
2 2 (3.23%) MultiChain
2 2 (3.23%) Quorum
Cloud Services
1 9 (14.52%) Amazon AWS
1 9 (14.52%) Serverless
2 8 (12.90%) Google Cloud Platform
3 7 (11.29%) Microsoft Azure
4 3 (4.84%) AWS CloudFormation
4 3 (4.84%) Firebase
5 1 (1.61%) Azure Active Directory
5 1 (1.61%) IaaS
5 1 (1.61%) npm
5 1 (1.61%) PaaS
Communications & Networking
1 7 (11.29%) HTTP
2 3 (4.84%) DNS
2 3 (4.84%) X.509
Database & Business Intelligence
1 16 (25.81%) MongoDB
2 11 (17.74%) Big Data
3 5 (8.06%) NoSQL
4 3 (4.84%) Apache Cassandra
4 3 (4.84%) Bigtable
4 3 (4.84%) Power BI
4 3 (4.84%) SQL Server
4 3 (4.84%) SQL Server Integration Services
5 2 (3.23%) MySQL
5 2 (3.23%) PostgreSQL
5 2 (3.23%) Relational Database
6 1 (1.61%) Amazon DynamoDB
6 1 (1.61%) Parquet
Development Applications
1 10 (16.13%) Git (software)
2 8 (12.90%) Babel
2 8 (12.90%) Jasmine
2 8 (12.90%) Mocha
2 8 (12.90%) webpack
3 7 (11.29%) Jenkins
4 5 (8.06%) CMake
4 5 (8.06%) Valgrind
5 1 (1.61%) Appium
5 1 (1.61%) Bower
5 1 (1.61%) Cucumber
5 1 (1.61%) Grunt
5 1 (1.61%) gulp
5 1 (1.61%) Selenium
5 1 (1.61%) SonarQube
5 1 (1.61%) WebDriver
General
1 17 (27.42%) Finance
2 4 (6.45%) Banking
Job Titles
1 30 (48.39%) Developer
2 16 (25.81%) Blockchain Engineer
3 13 (20.97%) Senior Systems Engineer
4 12 (19.35%) React Developer
5 10 (16.13%) JavaScript Developer
6 9 (14.52%) Blockchain Developer
7 6 (9.68%) Python Developer
7 6 (9.68%) Senior Developer
8 5 (8.06%) C++ Developer
8 5 (8.06%) UI Developer
9 3 (4.84%) Architect
9 3 (4.84%) DevOps Engineer
9 3 (4.84%) Senior DevOps
9 3 (4.84%) Senior DevOps Engineer
10 2 (3.23%) Agile Developer
10 2 (3.23%) Full Stack Developer
10 2 (3.23%) Senior Data Scientist
10 2 (3.23%) Senior Full Stack Developer
10 2 (3.23%) Solutions Architect
10 2 (3.23%) Test Automation Engineer
Libraries, Frameworks & Software Standards
1 14 (22.58%) Kafka
2 13 (20.97%) HTML
3 12 (19.35%) CSS
3 12 (19.35%) OAuth
3 12 (19.35%) React
4 10 (16.13%) GraphQL
4 10 (16.13%) OAuth2
5 9 (14.52%) Node.js
5 9 (14.52%) OpenID
5 9 (14.52%) Sass
6 8 (12.90%) Jest
6 8 (12.90%) JSLint
7 5 (8.06%) Boost C++ Libraries
7 5 (8.06%) RESTful
8 4 (6.45%) XML
9 3 (4.84%) LDAP
9 3 (4.84%) Lucene
9 3 (4.84%) WSDL
9 3 (4.84%) XML Schema
9 3 (4.84%) XSLT
Miscellaneous
1 12 (19.35%) Fintech
2 11 (17.74%) User Experience
3 5 (8.06%) Analytical Skills
4 2 (3.23%) Algorithms
4 2 (3.23%) Bitcoin
4 2 (3.23%) Cloud Native
4 2 (3.23%) Mobile App
4 2 (3.23%) Public Cloud
4 2 (3.23%) Reinsurance
5 1 (1.61%) Greenfield Project
Operating Systems
1 7 (11.29%) Linux
Processes & Methodologies
1 23 (37.10%) DevOps
2 16 (25.81%) Artificial Intelligence
3 14 (22.58%) Agile Software Development
3 14 (22.58%) Systems Engineering
4 10 (16.13%) Wireframes
5 9 (14.52%) Test Automation
6 8 (12.90%) Cybersecurity
7 7 (11.29%) Scrum
8 6 (9.68%) Analytics
8 6 (9.68%) Continuous Integration
8 6 (9.68%) Cryptocurrency
8 6 (9.68%) Data Science
8 6 (9.68%) Problem-Solving
9 5 (8.06%) Machine Learning
9 5 (8.06%) System Testing
10 4 (6.45%) Continuous Improvement
10 4 (6.45%) Data Integration
11 3 (4.84%) Integration Testing
11 3 (4.84%) MapReduce
11 3 (4.84%) Regression Testing
Programming Languages
1 20 (32.26%) Python
2 15 (24.19%) Scala
3 14 (22.58%) JavaScript
4 11 (17.74%) Java
5 10 (16.13%) ES6
6 9 (14.52%) Go
6 9 (14.52%) JSX
7 7 (11.29%) C++
7 7 (11.29%) SQL
8 6 (9.68%) C#
9 5 (8.06%) Bash Shell
10 3 (4.84%) Kotlin
10 3 (4.84%) Ruby
10 3 (4.84%) XPath
11 2 (3.23%) R
12 1 (1.61%) C
12 1 (1.61%) TypeScript
Qualifications
1 2 (3.23%) Degree
1 2 (3.23%) Master's Degree
Quality Assurance & Compliance
1 1 (1.61%) QA
System Software
1 21 (33.87%) Docker
2 1 (1.61%) Active Directory
Systems Management
1 23 (37.10%) Kubernetes
2 4 (6.45%) Terraform
3 3 (4.84%) Grafana
3 3 (4.84%) Mesos
3 3 (4.84%) Prometheus
4 1 (1.61%) Ansible
4 1 (1.61%) Single Sign-On
Vendors
1 5 (8.06%) Red Hat
2 2 (3.23%) Google
2 2 (3.23%) IBM
2 2 (3.23%) Microsoft
3 1 (1.61%) Oracle