Period
to 19 September 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Apache Spark skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apache Spark over the 6 months to 19 September 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.

Apache Spark
Central London > City of London
6 months to
19 Sep 2021
Same period 2020 Same period 2019
Rank 94 80 70
Rank change year-on-year -14 -10 +12
Contract jobs citing Apache Spark 74 46 216
As % of all contract jobs advertised in the City of London 2.06% 2.62% 3.45%
As % of the Application Platforms category 16.82% 19.49% 20.71%
Number of daily rates quoted 61 30 185
10th Percentile £485 £406 £513
25th Percentile £528 £408 £525
Median daily rate (50th Percentile) £613 £500 £560
Median % change year-on-year +22.50% -10.71% +1.82%
75th Percentile £675 £584 £650
90th Percentile £738 £636 £700
Central London median daily rate £613 £523 £566
% change year-on-year +17.22% -7.73% +2.95%

Apache Spark is in the Application Platforms 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 application platform skills.

All Application Platform Skills
City of London
Contract vacancies with a requirement for application platform skills 440 236 1,043
As % of all contract IT jobs advertised in the City of London 12.27% 13.44% 16.66%
Number of daily rates quoted 328 158 825
10th Percentile £313 £329 £300
25th Percentile £425 £413 £413
Median daily rate (50th Percentile) £525 £500 £525
Median % change year-on-year +5.00% -4.76% +2.94%
75th Percentile £625 £584 £588
90th Percentile £682 £675 £675
Central London median daily rate £525 £500 £525
% change year-on-year +4.90% -4.76% +5.00%
Number of hourly rates quoted 2 2 10
10th Percentile £22.00 £17.18 £12.73
25th Percentile £23.50 £20.44 £19.06
Median hourly rate £27.00 £26.25 £20.92
Median % change year-on-year +2.86% +25.51% +4.58%
75th Percentile £30.50 £32.44 £21.88
90th Percentile £32.00 £35.93 £39.30
Central London median hourly rate £22.00 £26.25 £21.00
% change year-on-year -16.19% +25.00% +5.00%

Apache Spark
Job Vacancy Trend in the City of London

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

Job vacancy trend for Apache Spark in the City of London

Apache Spark
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Apache Spark in the City of London

Apache Spark
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Apache Spark in the City of London over the 6 months to 19 September 2021.

Daily rate histogram for Apache Spark in the City of London

For the 6 months to 19 September 2021, IT contractor jobs citing Apache Spark 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 Apache Spark.

1 43 (58.11%) Big Data
2 37 (50.00%) Hadoop
3 36 (48.65%) Python
4 32 (43.24%) Java
5 29 (39.19%) Scala
6 28 (37.84%) Kafka
7 27 (36.49%) SQL
8 24 (32.43%) Finance
9 23 (31.08%) Apache Hive
9 23 (31.08%) DevOps
10 21 (28.38%) AWS
10 21 (28.38%) Data Science
11 20 (27.03%) Data Pipeline
11 20 (27.03%) Banking
12 19 (25.68%) Data Modelling
12 19 (25.68%) Analytics
13 18 (24.32%) Data Engineering
14 17 (22.97%) Algorithms
14 17 (22.97%) Docker
15 15 (20.27%) Azure
16 14 (18.92%) Apache
16 14 (18.92%) Analytical Skills
16 14 (18.92%) Machine Learning
17 13 (17.57%) Visualisation
18 12 (16.22%) Business Intelligence
18 12 (16.22%) ETL
18 12 (16.22%) GCP
18 12 (16.22%) Kubernetes
18 12 (16.22%) Data Lake
18 12 (16.22%) PySpark

Apache Spark
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 14 (18.92%) Apache
2 7 (9.46%) Elasticsearch
3 6 (8.11%) Apache Airflow
Cloud Services
1 21 (28.38%) AWS
2 15 (20.27%) Azure
3 12 (16.22%) GCP
4 8 (10.81%) Amazon EMR
5 5 (6.76%) Amazon EC2
5 5 (6.76%) Azure Cosmos DB
6 4 (5.41%) Amazon ECS
6 4 (5.41%) Amazon EKS
6 4 (5.41%) Amazon S3
6 4 (5.41%) GitHub
6 4 (5.41%) Power Platform
6 4 (5.41%) Route 53
7 3 (4.05%) Azure Data Factory
7 3 (4.05%) Azure Synapse Analytics
7 3 (4.05%) Serverless
8 2 (2.70%) AWS CloudFormation
8 2 (2.70%) AWS Lambda
8 2 (2.70%) AWS Step Functions
8 2 (2.70%) Datadog
9 1 (1.35%) Virtual Private Cloud
Communications & Networking
1 4 (5.41%) DNS
2 1 (1.35%) Firewall
2 1 (1.35%) Kerberos
2 1 (1.35%) LAN
2 1 (1.35%) Multicast
2 1 (1.35%) SIGTRAN
2 1 (1.35%) SMPP
2 1 (1.35%) SMS
2 1 (1.35%) SS7
2 1 (1.35%) WAN
2 1 (1.35%) Wireshark
Database & Business Intelligence
1 43 (58.11%) Big Data
2 37 (50.00%) Hadoop
3 23 (31.08%) Apache Hive
4 12 (16.22%) Data Lake
5 11 (14.86%) MongoDB
5 11 (14.86%) NoSQL
6 10 (13.51%) Tableau
7 7 (9.46%) Apache Cassandra
7 7 (9.46%) Impala
7 7 (9.46%) SQL Server
8 6 (8.11%) BigQuery
9 5 (6.76%) Flink
10 4 (5.41%) Amazon Redshift
10 4 (5.41%) HBase
10 4 (5.41%) MySQL
10 4 (5.41%) PostgreSQL
10 4 (5.41%) Power BI
10 4 (5.41%) Presto
11 3 (4.05%) BusinessObjects
11 3 (4.05%) Data Warehouse
Development Applications
1 6 (8.11%) Jenkins
2 4 (5.41%) IBM UrbanCode
2 4 (5.41%) TeamCity
3 1 (1.35%) Git (software)
3 1 (1.35%) Hudson
3 1 (1.35%) JIRA
3 1 (1.35%) MLflow
3 1 (1.35%) Subversion
3 1 (1.35%) Visual Studio
3 1 (1.35%) Visual Studio Team System
General
1 24 (32.43%) Finance
2 20 (27.03%) Banking
3 14 (18.92%) Analytical Skills
4 9 (12.16%) Social Skills
5 4 (5.41%) Front Office
6 2 (2.70%) Financial Institution
6 2 (2.70%) Investment Banking
6 2 (2.70%) Marketing
7 1 (1.35%) Advertising
7 1 (1.35%) Documentation Skills
7 1 (1.35%) Legal
7 1 (1.35%) Presentation Skills
7 1 (1.35%) Public Sector
Job Titles
1 33 (44.59%) Data Engineer
2 20 (27.03%) Developer
3 13 (17.57%) Java Developer
4 7 (9.46%) Architect
4 7 (9.46%) Senior Data Engineer
5 6 (8.11%) Data Scientist
5 6 (8.11%) Senior Data Scientist
6 5 (6.76%) Big Data Engineer
7 4 (5.41%) Azure Engineer
7 4 (5.41%) DevOps Engineer
8 3 (4.05%) Front Office Developer
8 3 (4.05%) Market Data Developer
8 3 (4.05%) Senior Developer
8 3 (4.05%) Senior Java Developer
9 2 (2.70%) Azure Developer
9 2 (2.70%) Big Data Developer
9 2 (2.70%) Business Intelligence Architect
9 2 (2.70%) Data Architect
9 2 (2.70%) Python Developer
10 1 (1.35%) Java Engineer
Libraries, Frameworks & Software Standards
1 28 (37.84%) Kafka
2 12 (16.22%) PySpark
3 10 (13.51%) Spring
4 4 (5.41%) Spring Boot
5 3 (4.05%) JSON
5 3 (4.05%) Samza
5 3 (4.05%) Spark Streaming
5 3 (4.05%) Web Services
6 2 (2.70%) Apache Avro
6 2 (2.70%) JDBC
6 2 (2.70%) JMS
7 1 (1.35%) Akka
7 1 (1.35%) Node.js
7 1 (1.35%) PyArrow
7 1 (1.35%) REST
7 1 (1.35%) RESTful
7 1 (1.35%) TensorFlow
7 1 (1.35%) XML
Miscellaneous
1 17 (22.97%) Algorithms
2 6 (8.11%) Greenfield Project
3 5 (6.76%) Market Risk
4 4 (5.41%) Data Structures
4 4 (5.41%) Fixed Income
4 4 (5.41%) Legacy Applications
4 4 (5.41%) PKI
5 3 (4.05%) Derivative
5 3 (4.05%) Foreign Exchange (FX)
6 2 (2.70%) Self-Motivation
7 1 (1.35%) Credit Risk
7 1 (1.35%) Equities
7 1 (1.35%) Hedge funds
7 1 (1.35%) Legacy Systems
7 1 (1.35%) Replication
Operating Systems
1 3 (4.05%) Unix
1 3 (4.05%) VMS
2 1 (1.35%) Android
2 1 (1.35%) Linux
Processes & Methodologies
1 23 (31.08%) DevOps
2 21 (28.38%) Data Science
3 20 (27.03%) Data Pipeline
4 19 (25.68%) Analytics
4 19 (25.68%) Data Modelling
5 18 (24.32%) Data Engineering
6 14 (18.92%) Machine Learning
7 13 (17.57%) Visualisation
8 12 (16.22%) Business Intelligence
8 12 (16.22%) ETL
9 11 (14.86%) Agile Software Development
9 11 (14.86%) Computer Science
9 11 (14.86%) Data Ingestion
10 10 (13.51%) Artificial Intelligence
10 10 (13.51%) Microservices
11 9 (12.16%) Migration
12 7 (9.46%) Use Case
13 6 (8.11%) Data Cleansing
13 6 (8.11%) Software Engineering
13 6 (8.11%) Statistics
Programming Languages
1 36 (48.65%) Python
2 32 (43.24%) Java
3 29 (39.19%) Scala
4 27 (36.49%) SQL
5 9 (12.16%) C++
6 5 (6.76%) C
7 4 (5.41%) R
8 3 (4.05%) T-SQL
9 2 (2.70%) JavaScript
9 2 (2.70%) Shell Script
10 1 (1.35%) Bash Shell
10 1 (1.35%) C#
10 1 (1.35%) CQL
10 1 (1.35%) Perl
10 1 (1.35%) TypeScript
Qualifications
1 6 (8.11%) Degree
2 1 (1.35%) Computer Science Degree
2 1 (1.35%) Security Cleared
Quality Assurance & Compliance
1 4 (5.41%) Data Quality
2 1 (1.35%) GDPR
2 1 (1.35%) SLA
System Software
1 17 (22.97%) Docker
2 2 (2.70%) HDFS
3 1 (1.35%) Apache ZooKeeper
Systems Management
1 12 (16.22%) Kubernetes
2 4 (5.41%) Prometheus
2 4 (5.41%) Terraform
3 2 (2.70%) Hadoop YARN
4 1 (1.35%) Kubeflow
4 1 (1.35%) Oozie
Vendors
1 10 (13.51%) Cloudera
2 9 (12.16%) Hortonworks
3 7 (9.46%) Databricks
4 5 (6.76%) Microsoft
4 5 (6.76%) Splunk
5 4 (5.41%) Google
5 4 (5.41%) IBM
5 4 (5.41%) Oracle
6 2 (2.70%) Alteryx
6 2 (2.70%) AppDynamics
6 2 (2.70%) Confluent
7 1 (1.35%) Informatica
7 1 (1.35%) Mavenir
7 1 (1.35%) Salesforce Marketing Cloud
7 1 (1.35%) Salesforce.com
7 1 (1.35%) SAP