Period
to 27 November 2021

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Haskell skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Haskell over the 6 months to 27 November 2021 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.

Haskell
England > London
6 months to
27 Nov 2021
Same period 2020 Same period 2019
Rank 556 366 542
Rank change year-on-year -190 +176 +61
Contract jobs citing Haskell 27 20 16
As % of all contract jobs advertised in London 0.072% 0.13% 0.045%
As % of the Programming Languages category 0.16% 0.25% 0.097%
Number of daily rates quoted 5 15 15
10th Percentile £545 " £475
25th Percentile £575 £500 £575
Median daily rate (50th Percentile) £625 £597 £700
Median % change year-on-year +4.69% -14.71% +7.69%
75th Percentile £665 £650 £763
90th Percentile £956 £695 £770
England median daily rate £625 £597 £625
% change year-on-year +4.69% -4.48% -

Haskell is in the Programming Languages 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 coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 17,025 7,883 16,546
As % of all contract IT jobs advertised in London 45.39% 49.71% 46.99%
Number of daily rates quoted 12,941 5,818 12,573
10th Percentile £406 £350 £363
25th Percentile £481 £425 £431
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - -
75th Percentile £675 £631 £619
90th Percentile £750 £725 £694
England median daily rate £530 £488 £488
% change year-on-year +8.72% - +2.63%
Number of hourly rates quoted 109 50 107
10th Percentile £24.50 £21.93 £16.50
25th Percentile £36.25 £30.36 £25.00
Median hourly rate £52.50 £37.93 £47.00
Median % change year-on-year +38.42% -19.30% +30.56%
75th Percentile £67.75 £52.91 £52.50
90th Percentile £78.90 £66.98 £60.22
England median hourly rate £47.50 £42.00 £44.00
% change year-on-year +13.10% -4.55% +4.96%

Haskell
Job Vacancy Trend in London

Job postings citing Haskell as a proportion of all IT jobs advertised in London.

Job vacancy trend for Haskell in London

Haskell
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing Haskell in London.

Daily rate trend for Haskell in London

Haskell
Daily Rate Histogram in London

Daily rate distribution for jobs citing Haskell in London over the 6 months to 27 November 2021.

Daily rate histogram for Haskell in London

For the 6 months to 27 November 2021, IT contractor jobs citing Haskell 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 London region with a requirement for Haskell.

1 24 (88.89%) Java
1 24 (88.89%) Scala
2 22 (81.48%) Agile Software Development
2 22 (81.48%) Banking
3 21 (77.78%) Investment Banking
3 21 (77.78%) Derivative
3 21 (77.78%) Finance
4 20 (74.07%) Foreign Exchange (FX)
4 20 (74.07%) Linux
4 20 (74.07%) Scrum
4 20 (74.07%) Multithreading
4 20 (74.07%) Redis
4 20 (74.07%) Functional Programming
5 19 (70.37%) Performance Tuning
5 19 (70.37%) RESTful
5 19 (70.37%) Data Structures
5 19 (70.37%) Algorithms
5 19 (70.37%) Spring Boot
5 19 (70.37%) API Development
5 19 (70.37%) API Design
5 19 (70.37%) Java 8
5 19 (70.37%) Hazelcast
5 19 (70.37%) Spring
5 19 (70.37%) Memcached
5 19 (70.37%) TCP/IP
5 19 (70.37%) PL/SQL
5 19 (70.37%) SQL
5 19 (70.37%) Oracle
5 19 (70.37%) SSL
6 12 (44.44%) Front Office

Haskell
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 4 (14.81%) Apache Spark
2 1 (3.70%) Apache Pig
Cloud Services
1 1 (3.70%) AWS
1 1 (3.70%) GCP
Communications & Networking
1 19 (70.37%) SSL
1 19 (70.37%) TCP/IP
Database & Business Intelligence
1 20 (74.07%) Redis
2 19 (70.37%) Hazelcast
3 3 (11.11%) Big Data
3 3 (11.11%) Hadoop
4 2 (7.41%) HBase
4 2 (7.41%) MongoDB
5 1 (3.70%) Apache Hive
5 1 (3.70%) Apache Kudu
5 1 (3.70%) Data Warehouse
5 1 (3.70%) Impala
5 1 (3.70%) PostgreSQL
Development Applications
1 1 (3.70%) CircleCI
1 1 (3.70%) fastlane
General
1 22 (81.48%) Banking
2 21 (77.78%) Finance
2 21 (77.78%) Investment Banking
3 12 (44.44%) Front Office
Job Titles
1 26 (96.30%) Developer
2 22 (81.48%) Senior Developer
3 20 (74.07%) Java Developer
4 19 (70.37%) Senior Java Developer
5 9 (33.33%) Investment Banking Java Developer
5 9 (33.33%) Senior Investment Banking Java Developer
6 4 (14.81%) Scala Developer
7 3 (11.11%) Senior Scala Developer
8 1 (3.70%) Chief Technology Officer
8 1 (3.70%) Clojure Developer
8 1 (3.70%) Hadoop Developer
Libraries, Frameworks & Software Standards
1 19 (70.37%) Memcached
1 19 (70.37%) RESTful
1 19 (70.37%) Spring
1 19 (70.37%) Spring Boot
2 4 (14.81%) Kafka
3 3 (11.11%) Akka
4 1 (3.70%) Jest
4 1 (3.70%) Node.js
4 1 (3.70%) Play Framework
4 1 (3.70%) RabbitMQ
4 1 (3.70%) React Native
4 1 (3.70%) Redux
4 1 (3.70%) spray
Miscellaneous
1 21 (77.78%) Derivative
2 20 (74.07%) Foreign Exchange (FX)
3 19 (70.37%) Algorithms
3 19 (70.37%) Data Structures
4 9 (33.33%) Fixed Income
5 2 (7.41%) Market Risk
6 1 (3.70%) Data Protection Act
6 1 (3.70%) Legacy Code
6 1 (3.70%) Mobile App
Operating Systems
1 20 (74.07%) Linux
2 1 (3.70%) Android
2 1 (3.70%) Apple iOS
Processes & Methodologies
1 22 (81.48%) Agile Software Development
2 20 (74.07%) Functional Programming
2 20 (74.07%) Multithreading
2 20 (74.07%) Scrum
3 19 (70.37%) API Design
3 19 (70.37%) API Development
3 19 (70.37%) Performance Tuning
4 4 (14.81%) BDD
4 4 (14.81%) TDD
5 2 (7.41%) Architectural Design
5 2 (7.41%) Continuous Integration
5 2 (7.41%) Data Engineering
5 2 (7.41%) DevOps
5 2 (7.41%) Microservices
5 2 (7.41%) Pair Programming
5 2 (7.41%) Risk Analysis
5 2 (7.41%) Risk Management
6 1 (3.70%) Acceptance Criteria
6 1 (3.70%) Data Science
6 1 (3.70%) Technology Roadmap
Programming Languages
1 24 (88.89%) Java
1 24 (88.89%) Scala
2 19 (70.37%) Java 8
2 19 (70.37%) PL/SQL
2 19 (70.37%) SQL
3 2 (7.41%) Clojure
4 1 (3.70%) Bash Shell
4 1 (3.70%) CoffeeScript
4 1 (3.70%) Go
4 1 (3.70%) Kotlin
4 1 (3.70%) TypeScript
System Software
1 2 (7.41%) Docker
2 1 (3.70%) Apache ZooKeeper
Systems Management
1 2 (7.41%) Kubernetes
2 1 (3.70%) Oozie
Vendors
1 19 (70.37%) Oracle
2 3 (11.11%) Hortonworks
3 1 (3.70%) Cloudera