Period
to 21 September 2021

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Parquet skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Parquet over the 6 months to 21 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 Parquet
England > London
6 months to
21 Sep 2021
Same period 2020 Same period 2019
Rank 504 357 545
Rank change year-on-year -147 +188 +59
Contract jobs citing Parquet 47 7 34
As % of all contract jobs advertised in London 0.14% 0.053% 0.088%
As % of the Database & Business Intelligence category 0.58% 0.21% 0.36%
Number of daily rates quoted 32 5 31
10th Percentile £468 " "
25th Percentile £528 £525 £425
Median daily rate (50th Percentile) £628 £575 £550
Median % change year-on-year +9.13% +4.55% -15.38%
75th Percentile £703 £594 £591
90th Percentile £773 £598 £688
England median daily rate £613 £575 £550
% change year-on-year +6.57% +4.55% -13.73%

Parquet 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 London with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
London
Contract vacancies with a requirement for database or business intelligence skills 8,098 3,387 9,487
As % of all contract IT jobs advertised in London 24.03% 25.57% 24.65%
Number of daily rates quoted 5,826 2,417 6,931
10th Percentile £381 £363 £363
25th Percentile £463 £426 £425
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - -
75th Percentile £660 £631 £611
90th Percentile £738 £713 £688
England median daily rate £525 £500 £476
% change year-on-year +5.00% +5.15% +0.11%
Number of hourly rates quoted 44 28 49
10th Percentile £14.52 £15.98 £15.44
25th Percentile £20.57 £20.75 £20.50
Median hourly rate £32.25 £32.75 £29.96
Median % change year-on-year -1.51% +9.30% +1.03%
75th Percentile £50.19 £41.50 £45.00
90th Percentile £61.70 £51.40 £51.75
England median hourly rate £29.81 £23.59 £30.00
% change year-on-year +26.39% -21.38% +9.09%

Parquet
Job Vacancy Trend in London

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

Job vacancy trend for Parquet in London

Parquet
Contractor Daily Rate Trend in London

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

Daily rate trend for Parquet in London

Parquet
Daily Rate Histogram in London

Daily rate distribution for jobs citing Parquet in London over the 6 months to 21 September 2021.

Daily rate histogram for Parquet in London

Parquet
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 Parquet within the London region over the 6 months to 21 September 2021. 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
West London - 3 £555 -
Central London -53 2 £601 +2.21% 2
Parquet
England

For the 6 months to 21 September 2021, IT contractor jobs citing Parquet 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 Parquet.

1 31 (65.96%) Azure
2 29 (61.70%) SQL
3 27 (57.45%) Agile Software Development
3 27 (57.45%) Apache Spark
4 24 (51.06%) Relational Database
4 24 (51.06%) Finance
5 22 (46.81%) Analytics
6 21 (44.68%) Social Skills
6 21 (44.68%) Oracle
6 21 (44.68%) Big Data
7 20 (42.55%) Apache Hive
7 20 (42.55%) Java
7 20 (42.55%) Data Warehouse
8 19 (40.43%) Apache Avro
9 18 (38.30%) Kubernetes
9 18 (38.30%) JSON
10 17 (36.17%) Scala
10 17 (36.17%) PostgreSQL
10 17 (36.17%) Analytical Skills
11 16 (34.04%) Data Lake
12 15 (31.91%) Docker
12 15 (31.91%) Data Ingestion
13 14 (29.79%) Databricks
13 14 (29.79%) Azure SQL Data Warehouse
13 14 (29.79%) Spring
13 14 (29.79%) Microsoft
13 14 (29.79%) SQL Server
14 13 (27.66%) Oozie
15 12 (25.53%) OAuth2
15 12 (25.53%) Data Transformation

Parquet
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 27 (57.45%) Apache Spark
2 12 (25.53%) Tomcat
3 8 (17.02%) Elasticsearch
4 6 (12.77%) Apache
5 3 (6.38%) Apache Airflow
5 3 (6.38%) Confluence
5 3 (6.38%) JBoss
6 2 (4.26%) Apache Pig
6 2 (4.26%) Luigi
Applications
1 2 (4.26%) Microsoft Excel
Cloud Services
1 31 (65.96%) Azure
2 7 (14.89%) Azure Data Factory
3 6 (12.77%) Collibra
3 6 (12.77%) GitHub
4 4 (8.51%) AWS
4 4 (8.51%) Azure Synapse Analytics
4 4 (8.51%) GCP
4 4 (8.51%) Serverless
5 3 (6.38%) Power Platform
6 2 (4.26%) Amazon EMR
6 2 (4.26%) Amazon S3
6 2 (4.26%) AWS Lambda
6 2 (4.26%) Azure Functions
6 2 (4.26%) Cloud Computing
6 2 (4.26%) Cloud Functions
6 2 (4.26%) GitHub Actions
6 2 (4.26%) Google Data Studio
7 1 (2.13%) Azure Storage
7 1 (2.13%) OpenShift
7 1 (2.13%) PaaS
Communications & Networking
1 3 (6.38%) Firewall
1 3 (6.38%) Intranet
2 1 (2.13%) Kerberos
2 1 (2.13%) SSL
Database & Business Intelligence
1 24 (51.06%) Relational Database
2 21 (44.68%) Big Data
3 20 (42.55%) Apache Hive
3 20 (42.55%) Data Warehouse
4 17 (36.17%) PostgreSQL
5 16 (34.04%) Data Lake
6 14 (29.79%) Azure SQL Data Warehouse
6 14 (29.79%) SQL Server
7 10 (21.28%) Hadoop
7 10 (21.28%) Metadata
7 10 (21.28%) Tableau
8 7 (14.89%) Delta Lake
8 7 (14.89%) Impala
8 7 (14.89%) RDBMS
9 5 (10.64%) NoSQL
10 4 (8.51%) Amazon Athena
10 4 (8.51%) HBase
10 4 (8.51%) MongoDB
11 3 (6.38%) HDInsight
11 3 (6.38%) Power BI
Development Applications
1 12 (25.53%) Hudson
1 12 (25.53%) IntelliJ
1 12 (25.53%) Maven
1 12 (25.53%) Subversion
2 5 (10.64%) JIRA
3 3 (6.38%) Git (software)
4 2 (4.26%) git-flow
4 2 (4.26%) Jenkins
General
1 24 (51.06%) Finance
2 21 (44.68%) Social Skills
3 17 (36.17%) Analytical Skills
4 8 (17.02%) Banking
5 6 (12.77%) Presentation Skills
6 2 (4.26%) Electronics
7 1 (2.13%) Retail Banking
Job Titles
1 23 (48.94%) Data Engineer
2 12 (25.53%) Big Data Engineer
3 8 (17.02%) Architect
4 6 (12.77%) Analyst
4 6 (12.77%) Big Data Software Engineer
4 6 (12.77%) Software Engineer
5 5 (10.64%) Data Architect
5 5 (10.64%) Developer
6 4 (8.51%) Designer
7 3 (6.38%) Cloud Engineer
7 3 (6.38%) Data Analyst
7 3 (6.38%) Technical Analyst
8 2 (4.26%) AWS Engineer
8 2 (4.26%) Azure Architect
8 2 (4.26%) Azure Developer
8 2 (4.26%) Azure Engineer
8 2 (4.26%) Big Data Developer
8 2 (4.26%) Lead DevOps
8 2 (4.26%) Platform Designer
8 2 (4.26%) Solutions Architect
Libraries, Frameworks & Software Standards
1 19 (40.43%) Apache Avro
2 18 (38.30%) JSON
3 14 (29.79%) Spring
4 12 (25.53%) OAuth
4 12 (25.53%) OAuth2
5 10 (21.28%) SOAP
6 9 (19.15%) RESTful
7 8 (17.02%) Elastic Stack
7 8 (17.02%) Java Concurrency
7 8 (17.02%) RabbitMQ
7 8 (17.02%) Spring Boot
8 6 (12.77%) Kafka
8 6 (12.77%) XML
9 3 (6.38%) YAML
10 2 (4.26%) AngularJS
10 2 (4.26%) PySpark
11 1 (2.13%) .NET
11 1 (2.13%) J2EE
11 1 (2.13%) jBPM
11 1 (2.13%) Spark Streaming
Miscellaneous
1 6 (12.77%) Data Protection Act
1 6 (12.77%) Legacy Applications
2 5 (10.64%) Data Structures
2 5 (10.64%) Replication
3 2 (4.26%) IBM Mainframe
3 2 (4.26%) Mainframe
4 1 (2.13%) Equities
4 1 (2.13%) Reinsurance
Operating Systems
1 12 (25.53%) Unix
2 3 (6.38%) Linux
2 3 (6.38%) Red Hat Enterprise Linux
Processes & Methodologies
1 27 (57.45%) Agile Software Development
2 22 (46.81%) Analytics
3 15 (31.91%) Data Ingestion
4 12 (25.53%) Data Modelling
4 12 (25.53%) Data Transformation
4 12 (25.53%) Problem-Solving
5 11 (23.40%) Software Engineering
6 10 (21.28%) Data Pipeline
7 9 (19.15%) API Development
7 9 (19.15%) Computer Science
7 9 (19.15%) Microservices
8 8 (17.02%) Deployment Automation
8 8 (17.02%) DevOps
8 8 (17.02%) Front End Development
8 8 (17.02%) Multithreaded Programming
8 8 (17.02%) Multithreading
8 8 (17.02%) Use Case
9 7 (14.89%) Business Analysis
9 7 (14.89%) ETL
10 6 (12.77%) Business Intelligence
Programming Languages
1 29 (61.70%) SQL
2 20 (42.55%) Java
3 17 (36.17%) Scala
4 12 (25.53%) Java 8
4 12 (25.53%) Kotlin
4 12 (25.53%) PL/SQL
5 7 (14.89%) Python
6 2 (4.26%) Bash Shell
6 2 (4.26%) Ruby
6 2 (4.26%) VB
7 1 (2.13%) C#
7 1 (2.13%) R
Qualifications
1 9 (19.15%) Degree
2 7 (14.89%) Master's Degree
3 3 (6.38%) DBS Check
Quality Assurance & Compliance
1 2 (4.26%) Data Quality
1 2 (4.26%) QA
System Software
1 15 (31.91%) Docker
2 1 (2.13%) HDFS
Systems Management
1 18 (38.30%) Kubernetes
2 13 (27.66%) Oozie
3 12 (25.53%) Single Sign-On
4 8 (17.02%) Docker Swarm
4 8 (17.02%) Kibana
4 8 (17.02%) logstash
5 1 (2.13%) Control-M
Vendors
1 21 (44.68%) Oracle
2 14 (29.79%) Databricks
2 14 (29.79%) Microsoft
3 9 (19.15%) MuleSoft
4 5 (10.64%) Talend
4 5 (10.64%) Workday
5 4 (8.51%) Informatica
5 4 (8.51%) Red Hat
6 3 (6.38%) Cloudera
7 2 (4.26%) Google
7 2 (4.26%) IBM