Period
to 1 August 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for OLTP skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited OLTP over the 6 months to 1 August 2021 with a comparison to the same period in the previous 2 years.

Online Transaction Processing (OLTP)
Central London > City of London
6 months to
1 Aug 2021
Same period 2020 Same period 2019
Rank 242 207 293
Rank change year-on-year -35 +86 +9
Permanent jobs citing OLTP 10 24 37
As % of all permanent jobs advertised in the City of London 0.18% 0.46% 0.36%
As % of the Database & Business Intelligence category 0.62% 1.91% 1.13%
Number of salaries quoted 9 11 35
10th Percentile £51,600 £57,500 £59,250
25th Percentile £66,250 £64,375 £63,125
Median annual salary (50th Percentile) £77,500 £87,500 £75,000
Median % change year-on-year -11.43% +16.67% +14.50%
75th Percentile £96,250 £105,625 £80,625
90th Percentile £100,500 £120,000 £81,250
Central London median annual salary £78,750 £87,500 £75,000
% change year-on-year -10.00% +16.67% +15.38%

OLTP is in the Databases and Business Intelligence category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
City of London
Permanent vacancies with a requirement for database or business intelligence skills 1,605 1,259 3,263
As % of all permanent IT jobs advertised in the City of London 28.73% 24.00% 31.95%
Number of salaries quoted 1,428 1,084 2,943
10th Percentile £45,000 £42,500 £42,500
25th Percentile £53,750 £52,500 £52,500
Median annual salary (50th Percentile) £72,500 £70,000 £67,500
Median % change year-on-year +3.57% +3.70% +3.85%
75th Percentile £92,500 £85,000 £85,000
90th Percentile £108,750 £96,250 £98,750
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +4.00%

OLTP
Job Vacancy Trend in the City of London

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

Job vacancy trend for OLTP in the City of London

OLTP
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing OLTP in the City of London.

Salary trend for OLTP in the City of London

OLTP
Salary Histogram in the City of London

Salary distribution for jobs citing OLTP in the City of London over the 6 months to 1 August 2021.

Salary histogram for OLTP in the City of London

For the 6 months to 1 August 2021, IT jobs citing OLTP also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for OLTP.

1 9 (90.00%) Data Warehouse
1 9 (90.00%) Data Modelling
1 9 (90.00%) AWS
2 8 (80.00%) SQL
3 7 (70.00%) Azure
3 7 (70.00%) Data Analysis
3 7 (70.00%) Amazon Redshift
4 6 (60.00%) GCP
4 6 (60.00%) Logical Data Model
4 6 (60.00%) Physical Data Model
4 6 (60.00%) Big Data
4 6 (60.00%) Databricks
4 6 (60.00%) ER Studio
4 6 (60.00%) Snowflake
4 6 (60.00%) Data Architecture
4 6 (60.00%) Hadoop
4 6 (60.00%) Oracle
4 6 (60.00%) PowerDesigner
4 6 (60.00%) ERwin
4 6 (60.00%) Advertising
5 5 (50.00%) Agile Software Development
5 5 (50.00%) Business Intelligence
5 5 (50.00%) MySQL
5 5 (50.00%) NoSQL
6 4 (40.00%) Tableau
6 4 (40.00%) Data Quality
6 4 (40.00%) Visualisation
6 4 (40.00%) TortoiseSVN
6 4 (40.00%) Degree
6 4 (40.00%) Reverse Engineering

OLTP
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 2 (20.00%) Apache Airflow
1 2 (20.00%) Apache Pig
1 2 (20.00%) Apache Spark
Cloud Services
1 9 (90.00%) AWS
2 7 (70.00%) Azure
3 6 (60.00%) GCP
3 6 (60.00%) Snowflake
4 4 (40.00%) Power Platform
5 3 (30.00%) AWS Step Functions
5 3 (30.00%) Azure Data Factory
5 3 (30.00%) Azure Synapse Analytics
6 1 (10.00%) Amazon S3
6 1 (10.00%) Azure Cosmos DB
6 1 (10.00%) Azure Stack
6 1 (10.00%) IaaS
6 1 (10.00%) PaaS
6 1 (10.00%) Serverless
Database & Business Intelligence
1 9 (90.00%) Data Warehouse
2 7 (70.00%) Amazon Redshift
3 6 (60.00%) Big Data
3 6 (60.00%) Hadoop
4 5 (50.00%) MySQL
4 5 (50.00%) NoSQL
5 4 (40.00%) Amazon Aurora
5 4 (40.00%) Amazon RDS
5 4 (40.00%) Metadata
5 4 (40.00%) PostgreSQL
5 4 (40.00%) Power BI
5 4 (40.00%) SQL Server Reporting Services
5 4 (40.00%) Tableau
6 3 (30.00%) Azure SQL Data Warehouse
6 3 (30.00%) SQL Server
6 3 (30.00%) SQL Server Integration Services
7 2 (20.00%) Apache Hive
7 2 (20.00%) Data Lake
7 2 (20.00%) HDInsight
7 2 (20.00%) SQL Server Analysis Services
Development Applications
1 6 (60.00%) ER Studio
1 6 (60.00%) ERwin
1 6 (60.00%) PowerDesigner
2 4 (40.00%) Subversion
2 4 (40.00%) Toad
2 4 (40.00%) TortoiseSVN
3 2 (20.00%) JIRA
General
1 6 (60.00%) Advertising
2 1 (10.00%) Analytical Skills
2 1 (10.00%) Finance
2 1 (10.00%) Public Speaking
Job Titles
1 4 (40.00%) Architect
1 4 (40.00%) Data Architect
2 3 (30.00%) Developer
3 2 (20.00%) Business Intelligence Developer
3 2 (20.00%) Data Engineer
4 1 (10.00%) Business Intelligence Lead
4 1 (10.00%) Integration Developer
4 1 (10.00%) Java Developer
4 1 (10.00%) Java Engineer
4 1 (10.00%) Lead Developer
4 1 (10.00%) Principal Developer
4 1 (10.00%) Principal Engineer
4 1 (10.00%) Principal Java Developer
Libraries, Frameworks & Software Standards
1 3 (30.00%) PySpark
2 1 (10.00%) Kafka
2 1 (10.00%) Middleware
2 1 (10.00%) Spring
2 1 (10.00%) Spring Boot
Miscellaneous
1 2 (20.00%) Derivative
2 1 (10.00%) Cloud Native
2 1 (10.00%) Mobile App
2 1 (10.00%) User Experience
Processes & Methodologies
1 9 (90.00%) Data Modelling
2 7 (70.00%) Data Analysis
3 6 (60.00%) Data Architecture
3 6 (60.00%) Logical Data Model
3 6 (60.00%) Physical Data Model
4 5 (50.00%) Agile Software Development
4 5 (50.00%) Business Intelligence
5 4 (40.00%) Conceptual Models
5 4 (40.00%) Data Strategy
5 4 (40.00%) Database Optimisation
5 4 (40.00%) Reverse Engineering
5 4 (40.00%) Visualisation
6 3 (30.00%) DevOps
6 3 (30.00%) Scrum
7 2 (20.00%) Coaching
7 2 (20.00%) Data Integration
7 2 (20.00%) ETL
7 2 (20.00%) Mentoring
7 2 (20.00%) Test Automation
7 2 (20.00%) Unit Testing
Programming Languages
1 8 (80.00%) SQL
2 2 (20.00%) Python
3 1 (10.00%) Java
3 1 (10.00%) JavaScript
3 1 (10.00%) Kotlin
Qualifications
1 4 (40.00%) Degree
1 4 (40.00%) Master's Degree
Quality Assurance & Compliance
1 4 (40.00%) Data Quality
System Software
1 2 (20.00%) Apache Flume
2 1 (10.00%) Docker
2 1 (10.00%) ISA Server
Systems Management
1 1 (10.00%) Grafana
1 1 (10.00%) Kubernetes
1 1 (10.00%) Mesos
1 1 (10.00%) Prometheus
Vendors
1 6 (60.00%) Databricks
1 6 (60.00%) Oracle
2 3 (30.00%) Microsoft
3 1 (10.00%) Google
3 1 (10.00%) SAP
3 1 (10.00%) SnapLogic
3 1 (10.00%) Workday