Period
to 21 January 2018

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Protocol Buffers skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Protocol Buffers over the 6 months to 21 January 2018 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.

Google Protocol Buffers (protobuf)
England > London
6 months to
21 Jan 2018
Same period 2017 Same period 2016
Rank 613 532 580
Rank change year-on-year -81 +48 +22
Contract jobs citing Protocol Buffers 22 60 12
As % of all contract IT jobs advertised in London 0.048% 0.14% 0.027%
As % of the Libraries, Frameworks & Software Standards category 0.13% 0.41% 0.084%
Number of daily rates quoted 14 50 11
London median daily rate £538 £550 £550
Median daily rate % change year-on-year -2.27% - -8.33%
10th Percentile £315 £412 £413
90th Percentile £575 £575 £750
England median daily rate £538 £550 £550
% change year-on-year -2.27% - -8.33%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

Protocol Buffers is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 16,792 14,762 14,357
As % of all contract IT jobs advertised in London 36.66% 35.58% 32.51%
Number of daily rates quoted 13,000 11,013 10,747
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £350 £325 £306
90th Percentile £650 £625 £625
England median daily rate £475 £425 £420
% change year-on-year +11.76% +1.19% +5.00%
Number of hourly rates quoted 97 79 96
London median hourly rate £35.00 £45.00 £37.75
Median hourly rate % change year-on-year -22.22% +19.21% +4.86%
10th Percentile £20.75 £20.87 £16.44
90th Percentile £47.83 £70.00 £55.00
England median hourly rate £40.00 £40.00 £37.50
% change year-on-year - +6.67% +7.14%

Protocol Buffers
Job Vacancy Trend in London

Job postings citing Protocol Buffers as a percentage of all IT jobs advertised in London.

Job vacancy trend for Protocol Buffers in London

Protocol Buffers
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Protocol Buffers in London.

Contractor daily rate trend for Protocol Buffers in London

Protocol Buffers
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Protocol Buffers in London over the 6 months to 21 January 2018.

Contractor daily rate histogram for Protocol Buffers in London

Protocol Buffers
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Protocol Buffers in London.

Contractor hourly rate trend for Protocol Buffers in London

Protocol Buffers
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Protocol Buffers within the London region over the 6 months to 21 January 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -46 3 £300 -45.45% 2
South London - 1 £550 -
Protocol Buffers
England

For the 6 months to 21 January 2018, IT contractor jobs citing Protocol Buffers 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 London region with a requirement for Protocol Buffers.

1 18 (81.82%) Java
2 14 (63.64%) Git (software)
3 12 (54.55%) Banking
4 10 (45.45%) Agile Software Development
4 10 (45.45%) JSON
4 10 (45.45%) XML
5 9 (40.91%) Shell Script
5 9 (40.91%) Maven
5 9 (40.91%) Gradle
5 9 (40.91%) Relational Database
6 8 (36.36%) Apache Avro
6 8 (36.36%) Degree
6 8 (36.36%) TDD
6 8 (36.36%) Finance
7 7 (31.82%) Stakeholder Management
7 7 (31.82%) Investment Banking
7 7 (31.82%) Kafka
8 6 (27.27%) Apache Solr
8 6 (27.27%) Lucene
8 6 (27.27%) OO
8 6 (27.27%) Unix
8 6 (27.27%) SOAP
9 5 (22.73%) SQL
9 5 (22.73%) C++
9 5 (22.73%) DB2
9 5 (22.73%) Ant
9 5 (22.73%) OOA/OOD
9 5 (22.73%) Spring
9 5 (22.73%) Enterprise Architecture
9 5 (22.73%) MiFID

Protocol Buffers
Co-occurring IT Skills in 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 6 (27.27%) Apache Solr
2 4 (18.18%) Elasticsearch
Business Applications
1 1 (4.55%) RMDS
Communications & Networking
1 4 (18.18%) AMQP
2 3 (13.64%) Kerberos
2 3 (13.64%) SSL
2 3 (13.64%) TCP/IP
3 1 (4.55%) Multicast
Database & Business Intelligence
1 9 (40.91%) Relational Database
2 5 (22.73%) DB2
3 4 (18.18%) KDB
3 4 (18.18%) PostgreSQL
4 3 (13.64%) Big Data
4 3 (13.64%) Hadoop
5 2 (9.09%) HBase
Development Applications
1 14 (63.64%) Git (software)
2 9 (40.91%) Gradle
2 9 (40.91%) Maven
3 5 (22.73%) Ant
3 5 (22.73%) Hudson
3 5 (22.73%) Jenkins
4 4 (18.18%) Eclipse
4 4 (18.18%) Mocha
4 4 (18.18%) NUnit
4 4 (18.18%) SpecFlow
4 4 (18.18%) Visual Studio
5 1 (4.55%) Babel
5 1 (4.55%) gulp
5 1 (4.55%) Subversion
5 1 (4.55%) webpack
General
1 12 (54.55%) Banking
2 8 (36.36%) Finance
3 7 (31.82%) Investment Banking
4 4 (18.18%) Legal
Job Titles
1 22 (100.00%) Developer
2 15 (68.18%) Java Developer
3 7 (31.82%) Senior Developer
4 4 (18.18%) Applications Developer
4 4 (18.18%) C# Application Developer
4 4 (18.18%) C# Developer
4 4 (18.18%) Elasticsearch Developer
4 4 (18.18%) Lucene Developer
4 4 (18.18%) Senior Applications Developer
4 4 (18.18%) Senior C# Application Developer
4 4 (18.18%) Senior C# Developer
4 4 (18.18%) Solr Developer
5 3 (13.64%) Investment Banking Java Developer
5 3 (13.64%) Senior Investment Banking Java Developer
5 3 (13.64%) Senior Java Developer
6 2 (9.09%) Big Data Developer
6 2 (9.09%) Integration Developer
7 1 (4.55%) Core Java Developer
7 1 (4.55%) Front End Developer (Client-Side Developer)
7 1 (4.55%) Linux Developer
Libraries, Frameworks & Software Standards
1 10 (45.45%) JSON
1 10 (45.45%) XML
2 8 (36.36%) Apache Avro
3 7 (31.82%) Kafka
4 6 (27.27%) Lucene
4 6 (27.27%) SOAP
5 5 (22.73%) FIX Protocol
5 5 (22.73%) React
5 5 (22.73%) Spring
6 4 (18.18%) .NET
6 4 (18.18%) Apache Thrift
6 4 (18.18%) Dapper ORM
6 4 (18.18%) JSON Schema
6 4 (18.18%) KnockoutJS
6 4 (18.18%) LINQ to SQL
6 4 (18.18%) Middleware
6 4 (18.18%) NancyFx
6 4 (18.18%) Reactive Extensions
6 4 (18.18%) Twitter Bootstrap
7 3 (13.64%) J2EE
Miscellaneous
1 5 (22.73%) Algorithms
2 4 (18.18%) Data Structures
2 4 (18.18%) Equities
3 1 (4.55%) Analytical Skills
3 1 (4.55%) Computer Science
3 1 (4.55%) Fintech
3 1 (4.55%) Foreign Exchange (FX)
Operating Systems
1 6 (27.27%) Unix
2 4 (18.18%) Linux
Processes & Methodologies
1 10 (45.45%) Agile Software Development
2 8 (36.36%) TDD
3 7 (31.82%) Stakeholder Management
4 6 (27.27%) OO
5 5 (22.73%) Domain-Driven Design
5 5 (22.73%) Enterprise Architecture
5 5 (22.73%) Microservices
5 5 (22.73%) OOA/OOD
5 5 (22.73%) Refactoring
5 5 (22.73%) Scrum
6 4 (18.18%) SDLC
6 4 (18.18%) Validation
7 3 (13.64%) EAI
8 2 (9.09%) Data Security
8 2 (9.09%) MapReduce
9 1 (4.55%) Data Protection
9 1 (4.55%) Front End Development
9 1 (4.55%) Market Making
9 1 (4.55%) Multithreading
9 1 (4.55%) Responsive Web Design
Programming Languages
1 18 (81.82%) Java
2 9 (40.91%) Shell Script
3 5 (22.73%) C++
3 5 (22.73%) SQL
4 4 (18.18%) C#
5 3 (13.64%) Python
6 2 (9.09%) Bash Shell
6 2 (9.09%) Scala
7 1 (4.55%) ES6
7 1 (4.55%) JavaScript
7 1 (4.55%) Objective-C
7 1 (4.55%) Perl
Qualifications
1 8 (36.36%) Degree
2 4 (18.18%) PhD
2 4 (18.18%) Sun Certification
3 1 (4.55%) Computer Science Degree
Quality Assurance & Compliance
1 5 (22.73%) Dodd-Frank
1 5 (22.73%) EMIR
1 5 (22.73%) MiFID
System Software
1 2 (9.09%) HDFS
2 1 (4.55%) Docker
Systems Management
1 2 (9.09%) Hadoop YARN
1 2 (9.09%) Terraform
2 1 (4.55%) Ansible
2 1 (4.55%) Kubernetes
Vendors
1 5 (22.73%) Perforce
2 4 (18.18%) Tableau
3 3 (13.64%) Hortonworks
4 1 (4.55%) Reuters