Period
to 29 July 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Scala skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Scala over the 6 months to 29 July 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.

Scala
Central London > City of London
6 months to
29 Jul 2021
Same period 2020 Same period 2019
Rank 83 81 80
Rank change year-on-year -2 -1 +22
Contract jobs citing Scala 85 58 199
As % of all contract jobs advertised in the City of London 2.48% 2.46% 3.03%
As % of the Programming Languages category 5.34% 4.89% 6.06%
Number of daily rates quoted 69 49 174
10th Percentile £481 £413 £468
25th Percentile £554 £475 £551
Median daily rate (50th Percentile) £617 £575 £600
Median % change year-on-year +7.31% -4.17% -
75th Percentile £686 £636 £679
90th Percentile £750 £675 £700
Central London median daily rate £613 £556 £600
% change year-on-year +10.11% -7.29% +6.67%

Scala 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 the City of London with a requirement for coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 1,591 1,186 3,286
As % of all contract IT jobs advertised in the City of London 46.43% 50.25% 50.08%
Number of daily rates quoted 1,220 921 2,672
10th Percentile £406 £375 £406
25th Percentile £470 £450 £463
Median daily rate (50th Percentile) £585 £525 £525
Median % change year-on-year +11.38% - -
75th Percentile £675 £625 £613
90th Percentile £750 £688 £675
Central London median daily rate £575 £525 £525
% change year-on-year +9.52% - -
Number of hourly rates quoted 8 10 22
10th Percentile £24.19 £23.35 "
25th Percentile £26.00 £33.31 £21.00
Median hourly rate £33.50 £38.50 £22.00
Median % change year-on-year -12.99% +75.00% +2.33%
75th Percentile £37.75 £52.38 £37.50
90th Percentile £47.43 £57.88 £51.04
Central London median hourly rate £27.50 £38.50 £22.50
% change year-on-year -28.57% +71.11% +4.65%

Scala
Job Vacancy Trend in the City of London

Job postings citing Scala as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Scala in the City of London

Scala
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Scala in the City of London.

Daily rate trend for Scala in the City of London

Scala
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Scala in the City of London over the 6 months to 29 July 2021.

Daily rate histogram for Scala in the City of London

For the 6 months to 29 July 2021, IT contractor jobs citing Scala 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 Scala.

1 42 (49.41%) Java
2 31 (36.47%) Apache Spark
3 28 (32.94%) Finance
4 24 (28.24%) Banking
4 24 (28.24%) Python
5 23 (27.06%) DevOps
6 21 (24.71%) Agile Software Development
7 20 (23.53%) Kafka
7 20 (23.53%) Big Data
8 19 (22.35%) Apache Hive
9 18 (21.18%) Multithreading
10 17 (20.00%) TDD
10 17 (20.00%) Analytical Skills
11 15 (17.65%) Hadoop
12 13 (15.29%) Data Structures
12 13 (15.29%) Spring
13 12 (14.12%) GCP
14 11 (12.94%) Data Engineering
14 11 (12.94%) Kotlin
14 11 (12.94%) Data Science
14 11 (12.94%) Software Engineering
14 11 (12.94%) Data Modelling
14 11 (12.94%) SQL
14 11 (12.94%) Azure
15 10 (11.76%) Investment Banking
15 10 (11.76%) PySpark
15 10 (11.76%) Algorithms
15 10 (11.76%) BigQuery
16 9 (10.59%) Greenfield Project
16 9 (10.59%) AWS

Scala
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 31 (36.47%) Apache Spark
2 8 (9.41%) Apache
3 5 (5.88%) Apache Airflow
4 2 (2.35%) Elasticsearch
Cloud Services
1 12 (14.12%) GCP
2 11 (12.94%) Azure
3 9 (10.59%) AWS
4 3 (3.53%) Azure Data Factory
4 3 (3.53%) GitHub
5 2 (2.35%) Azure Cosmos DB
5 2 (2.35%) Azure Synapse Analytics
5 2 (2.35%) Power Platform
5 2 (2.35%) SaaS
6 1 (1.18%) Amazon EKS
6 1 (1.18%) Azure Machine Learning
6 1 (1.18%) IaaS
6 1 (1.18%) PaaS
6 1 (1.18%) Serverless
Database & Business Intelligence
1 20 (23.53%) Big Data
2 19 (22.35%) Apache Hive
3 15 (17.65%) Hadoop
4 10 (11.76%) BigQuery
5 7 (8.24%) Data Lake
6 6 (7.06%) Impala
7 5 (5.88%) Presto
8 4 (4.71%) NoSQL
9 3 (3.53%) Metadata
10 2 (2.35%) Amazon Aurora
10 2 (2.35%) Amazon DynamoDB
10 2 (2.35%) BusinessObjects
10 2 (2.35%) Hazelcast
10 2 (2.35%) Looker
10 2 (2.35%) PostgreSQL
10 2 (2.35%) Power BI
10 2 (2.35%) Redis
10 2 (2.35%) Spark SQL
10 2 (2.35%) SQL Server Reporting Services
10 2 (2.35%) Tableau
Development Applications
1 4 (4.71%) Git (software)
1 4 (4.71%) Jenkins
2 2 (2.35%) Cucumber
2 2 (2.35%) Gatling
2 2 (2.35%) JIRA
2 2 (2.35%) Selenium
3 1 (1.18%) ERwin
3 1 (1.18%) MLflow
3 1 (1.18%) Sonatype Nexus
General
1 28 (32.94%) Finance
2 24 (28.24%) Banking
3 17 (20.00%) Analytical Skills
4 10 (11.76%) Investment Banking
5 4 (4.71%) Front Office
5 4 (4.71%) Social Skills
6 2 (2.35%) Marketing
7 1 (1.18%) Publishing
7 1 (1.18%) Retail Banking
Job Titles
1 45 (52.94%) Developer
2 25 (29.41%) Data Engineer
3 23 (27.06%) Scala Developer
4 18 (21.18%) Java Developer
5 14 (16.47%) Scala Engineer
6 7 (8.24%) Java Scala Developer
7 6 (7.06%) Lead Developer
8 4 (4.71%) Investment Banking Java Developer
8 4 (4.71%) Lead Java Developer
8 4 (4.71%) Senior Data Engineer
8 4 (4.71%) Software Engineer
8 4 (4.71%) Technical Developer
8 4 (4.71%) Technical Leader
9 3 (3.53%) Architect
9 3 (3.53%) Big Data Engineer
9 3 (3.53%) Front Office Developer
9 3 (3.53%) Ruby Developer
9 3 (3.53%) Scala Software Engineer
9 3 (3.53%) Senior Developer
10 2 (2.35%) Ruby Engineer
Libraries, Frameworks & Software Standards
1 20 (23.53%) Kafka
2 13 (15.29%) Spring
3 10 (11.76%) PySpark
4 7 (8.24%) Spring Boot
5 6 (7.06%) AngularJS
6 5 (5.88%) Akka
6 5 (5.88%) React
7 3 (3.53%) RESTful
8 2 (2.35%) Apache Avro
8 2 (2.35%) JDBC
8 2 (2.35%) JMS
8 2 (2.35%) JSON
8 2 (2.35%) Memcached
8 2 (2.35%) Node.js
8 2 (2.35%) Play Framework
9 1 (1.18%) .NET
9 1 (1.18%) FIX Protocol
Miscellaneous
1 13 (15.29%) Data Structures
2 10 (11.76%) Algorithms
3 9 (10.59%) Greenfield Project
4 4 (4.71%) Foreign Exchange (FX)
4 4 (4.71%) User Experience
5 2 (2.35%) Management Information System
6 1 (1.18%) Grid Computing
6 1 (1.18%) Legacy Systems
6 1 (1.18%) Linux Command Line
6 1 (1.18%) Self-Motivation
Operating Systems
1 1 (1.18%) Unix
Processes & Methodologies
1 23 (27.06%) DevOps
2 21 (24.71%) Agile Software Development
3 18 (21.18%) Multithreading
4 17 (20.00%) TDD
5 11 (12.94%) Data Engineering
5 11 (12.94%) Data Modelling
5 11 (12.94%) Data Science
5 11 (12.94%) Software Engineering
6 9 (10.59%) BDD
6 9 (10.59%) Machine Learning
7 8 (9.41%) Analytics
7 8 (9.41%) Data Ingestion
7 8 (9.41%) Data Pipeline
8 7 (8.24%) Computer Science
8 7 (8.24%) ETL
9 6 (7.06%) Fintech
9 6 (7.06%) Scrum
10 5 (5.88%) Continuous Delivery
10 5 (5.88%) Full Stack Development
10 5 (5.88%) Microservices
Programming Languages
1 42 (49.41%) Java
2 24 (28.24%) Python
3 11 (12.94%) Kotlin
3 11 (12.94%) SQL
4 6 (7.06%) Go
4 6 (7.06%) Java 8
5 5 (5.88%) C++
5 5 (5.88%) Ruby
5 5 (5.88%) TypeScript
6 4 (4.71%) R
7 3 (3.53%) JavaScript
7 3 (3.53%) PL/SQL
7 3 (3.53%) Rust
8 2 (2.35%) Haskell
8 2 (2.35%) T-SQL
9 1 (1.18%) Bash Shell
9 1 (1.18%) C#
9 1 (1.18%) Clojure
9 1 (1.18%) Erlang
Qualifications
1 1 (1.18%) SC Cleared
1 1 (1.18%) Security Cleared
1 1 (1.18%) TOGAF Certification
Quality Assurance & Compliance
1 1 (1.18%) Data Quality
System Software
1 6 (7.06%) Docker
2 2 (2.35%) HDFS
Systems Management
1 7 (8.24%) Kubernetes
2 2 (2.35%) Grafana
2 2 (2.35%) Prometheus
2 2 (2.35%) Terraform
3 1 (1.18%) Hadoop YARN
3 1 (1.18%) Kubeflow
3 1 (1.18%) Oozie
Vendors
1 8 (9.41%) Cloudera
2 7 (8.24%) Hortonworks
3 4 (4.71%) Databricks
3 4 (4.71%) Solace
4 3 (3.53%) Google
4 3 (3.53%) Microsoft
4 3 (3.53%) Oracle
5 2 (2.35%) Confluent
6 1 (1.18%) Informatica