Legacy Systems Job Trends in London

Legacy System
England > London

The table below looks at the prevalence of the term Legacy Systems in permanent job vacancies in London. Included is a benchmarking guide to the salaries offered in vacancies that cited Legacy Systems over the 6 months leading up to 18 September 2025, comparing them to the same period in the previous two years.

6 months to
18 Sep 2025
Same period 2024 Same period 2023
Rank 237 362 341
Rank change year-on-year +125 -21 +103
Permanent jobs citing Legacy Systems 166 99 152
As % of all permanent jobs advertised in London 1.39% 0.51% 0.69%
As % of the Miscellaneous category 2.99% 1.27% 1.63%
Number of salaries quoted 74 78 141
10th Percentile £55,500 £41,900 £56,250
25th Percentile £57,500 £48,750 £65,000
Median annual salary (50th Percentile) £76,250 £80,000 £85,000
Median % change year-on-year -4.69% -5.88% +6.25%
75th Percentile £92,500 £132,500 £112,500
90th Percentile £97,500 £180,000 £120,000
England median annual salary £67,000 £60,000 £65,000
% change year-on-year +11.67% -7.69% -6.07%

All Generic Skills
London

Legacy Systems falls under the General and Transferable Skills category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring generic IT skills in London.

Permanent vacancies with a requirement for generic IT skills 5,555 7,796 9,309
As % of all permanent jobs advertised in London 46.48% 40.43% 42.42%
Number of salaries quoted 3,279 4,682 7,444
10th Percentile £37,500 £42,500 £41,250
25th Percentile £53,750 £55,000 £56,000
Median annual salary (50th Percentile) £77,500 £80,000 £75,000
Median % change year-on-year -3.13% +6.67% -
75th Percentile £105,000 £108,750 £100,000
90th Percentile £135,000 £140,000 £130,000
England median annual salary £55,000 £60,000 £65,000
% change year-on-year -8.33% -7.69% +4.00%

Legacy Systems
Job Vacancy Trend in London

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

Job vacancy trend for Legacy Systems in London

Legacy Systems
Salary Trend in London

Salary distribution trend for jobs in London citing Legacy Systems.

Salary distribution trend for jobs in London citing Legacy Systems

Legacy Systems
Salary Histogram in London

Salary distribution for jobs citing Legacy Systems in London over the 6 months to 18 September 2025.

Salary histogram for Legacy Systems in London

Legacy Systems
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Legacy Systems within the London region over the 6 months to 18 September 2025. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Jobs
Central London +48 19 £87,500 +9.38% 22
West London +47 6 - - 4
South London +8 1 - -
Legacy Systems
England

Legacy Systems
Co-occurring Skills and Capabilities in London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 8 (4.82%) Apache
1 8 (4.82%) Apache Airflow
2 7 (4.22%) Apache Spark
3 4 (2.41%) Apache Synapse
3 4 (2.41%) SharePoint
4 2 (1.20%) Microsoft Exchange
5 1 (0.60%) nginx
5 1 (0.60%) Oracle SOA Suite
Applications
1 12 (7.23%) Microsoft Office
2 2 (1.20%) Microsoft Excel
2 2 (1.20%) Microsoft PowerPoint
Business Applications
1 3 (1.81%) Shopify
2 2 (1.20%) SAP S/4HANA
3 1 (0.60%) Aladdin
3 1 (0.60%) NetSuite
3 1 (0.60%) SAP MDG
Cloud Services
1 46 (27.71%) AWS
2 42 (25.30%) Azure
3 25 (15.06%) Amazon Bedrock
3 25 (15.06%) Vertex AI
4 15 (9.04%) Power Platform
4 15 (9.04%) SaaS
5 9 (5.42%) GCP
6 8 (4.82%) Azure DevOps
7 7 (4.22%) Dynamics 365
8 6 (3.61%) GitHub
8 6 (3.61%) PaaS
8 6 (3.61%) Snowflake
9 5 (3.01%) Amazon Kinesis
9 5 (3.01%) Azure Synapse Analytics
9 5 (3.01%) Microsoft 365
9 5 (3.01%) Serverless
9 5 (3.01%) Stackdriver
10 4 (2.41%) Azure Data Factory
10 4 (2.41%) Azure Functions
10 4 (2.41%) IaaS
Communications & Networking
1 2 (1.20%) Firewall
1 2 (1.20%) LAN
1 2 (1.20%) SAN
1 2 (1.20%) WAN
1 2 (1.20%) Wi-Fi
2 1 (0.60%) DHCP
2 1 (0.60%) DNS
2 1 (0.60%) Fibre Channel
2 1 (0.60%) Intranet
2 1 (0.60%) iSCSI
2 1 (0.60%) NAS
2 1 (0.60%) Network Security
2 1 (0.60%) SD-WAN
2 1 (0.60%) TCP/IP
2 1 (0.60%) VPN
Database & Business Intelligence
1 43 (25.90%) SQL Server
2 33 (19.88%) MySQL
3 7 (4.22%) NoSQL
3 7 (4.22%) Power BI
3 7 (4.22%) Relational Database
4 5 (3.01%) Amazon Redshift
4 5 (3.01%) Big Data
4 5 (3.01%) BigQuery
5 4 (2.41%) Data Mining
5 4 (2.41%) PostgreSQL
6 3 (1.81%) Metadata
6 3 (1.81%) Tableau
7 2 (1.20%) Data Vault
7 2 (1.20%) DB2
7 2 (1.20%) Delta Lake
7 2 (1.20%) Hadoop
7 2 (1.20%) Snowflake Schema
7 2 (1.20%) SQL Server Integration Services
8 1 (0.60%) Data Warehouse
8 1 (0.60%) RDBMS
Development Applications
1 11 (6.63%) ERwin
2 8 (4.82%) Jenkins
3 5 (3.01%) Git
4 2 (1.20%) Artifactory
4 2 (1.20%) GitLab
4 2 (1.20%) JIRA
4 2 (1.20%) Octopus Deploy
5 1 (0.60%) JMeter
5 1 (0.60%) JUnit
5 1 (0.60%) Mockito
5 1 (0.60%) PHPUnit
5 1 (0.60%) Vite
General
1 78 (46.99%) Social Skills
2 54 (32.53%) Analytical Skills
3 34 (20.48%) Finance
4 18 (10.84%) Banking
5 11 (6.63%) Investment Banking
6 8 (4.82%) Public Sector
7 7 (4.22%) Inclusion and Diversity
8 6 (3.61%) Law
9 5 (3.01%) Documentation Skills
9 5 (3.01%) Legal
9 5 (3.01%) Retail
10 3 (1.81%) Front Office
10 3 (1.81%) Local Government
10 3 (1.81%) Wholesale Banking
11 2 (1.20%) Back Office
11 2 (1.20%) Marketing
11 2 (1.20%) Music Industry
12 1 (0.60%) Presentation Skills
Job Titles
1 60 (36.14%) Consultant
2 37 (22.29%) Senior
3 30 (18.07%) Developer
4 29 (17.47%) Architect
5 26 (15.66%) Lead
5 26 (15.66%) Senior Consultant
6 25 (15.06%) Gen AI Consultant
7 14 (8.43%) Data Architect
8 11 (6.63%) Lead Architect
8 11 (6.63%) Lead Data Architect
9 10 (6.02%) CRM Manager
9 10 (6.02%) Platform Manager
9 10 (6.02%) Solutions Architect
10 9 (5.42%) Lead Developer
11 8 (4.82%) Senior Developer
12 7 (4.22%) PHP Developer
12 7 (4.22%) SaaS Developer
13 6 (3.61%) Data Engineer
14 5 (3.01%) Analyst
14 5 (3.01%) Full-Stack Developer
Libraries, Frameworks & Software Standards
1 25 (15.06%) LangChain
2 11 (6.63%) Laravel
3 10 (6.02%) REST
4 9 (5.42%) Kafka
5 7 (4.22%) Tailwind CSS
5 7 (4.22%) Vue
6 6 (3.61%) Alpine.js
7 5 (3.01%) Apache Beam
7 5 (3.01%) Pandas
7 5 (3.01%) React
7 5 (3.01%) RESTful
8 4 (2.41%) Hibernate
8 4 (2.41%) Spring
8 4 (2.41%) Spring Boot
8 4 (2.41%) Symfony
8 4 (2.41%) Web Services
9 3 (1.81%) CSS
9 3 (1.81%) Django
9 3 (1.81%) JPA
9 3 (1.81%) jQuery
Miscellaneous
1 18 (10.84%) Data Structures
2 13 (7.83%) Cloud Native
3 10 (6.02%) Management Information System
4 6 (3.61%) Analytical Mindset
5 4 (2.41%) Distributed Architecture
5 4 (2.41%) e-Learning
5 4 (2.41%) Onboarding
5 4 (2.41%) Product Ownership
6 3 (1.81%) Enterprise Software
6 3 (1.81%) Low-Code
6 3 (1.81%) Mainframe
7 2 (1.20%) Distributed Systems
7 2 (1.20%) Greenfield Project
7 2 (1.20%) NHS
7 2 (1.20%) Self-Motivation
8 1 (0.60%) CCTV
8 1 (0.60%) Clustering
8 1 (0.60%) Derivative
8 1 (0.60%) Replication
8 1 (0.60%) Tandem
Operating Systems
1 2 (1.20%) Linux
1 2 (1.20%) Windows
1 2 (1.20%) Windows Server
1 2 (1.20%) zOS
2 1 (0.60%) Red Hat Enterprise Linux
2 1 (0.60%) Windows Server 2012
Processes & Methodologies
1 51 (30.72%) Agile
2 50 (30.12%) Stakeholder Management
3 43 (25.90%) Migration
4 37 (22.29%) Thought Leadership
5 33 (19.88%) Artificial Intelligence
5 33 (19.88%) OO
5 33 (19.88%) OOP
6 29 (17.47%) IT Strategy
6 29 (17.47%) Machine Learning
7 28 (16.87%) Computer Science
8 27 (16.27%) LLM
9 26 (15.66%) Business Development
9 26 (15.66%) Problem-Solving
9 26 (15.66%) Prompt Engineering
10 25 (15.06%) Generative AI
10 25 (15.06%) MLOps
10 25 (15.06%) Retrieval-Augmented Generation
10 25 (15.06%) Roadmaps
11 24 (14.46%) CI/CD
11 24 (14.46%) DevOps
Programming Languages
1 32 (19.28%) Delphi
1 32 (19.28%) Pascal
2 25 (15.06%) SQL
3 17 (10.24%) PHP
4 16 (9.64%) Python
5 11 (6.63%) Java
6 6 (3.61%) JavaScript
7 4 (2.41%) C#
8 3 (1.81%) COBOL
8 3 (1.81%) VBA
9 2 (1.20%) Bicep
9 2 (1.20%) JCL
9 2 (1.20%) PL/SQL
9 2 (1.20%) PowerShell
9 2 (1.20%) Shell Script
10 1 (0.60%) ABAP
10 1 (0.60%) Erlang
10 1 (0.60%) Scala
10 1 (0.60%) T-SQL
10 1 (0.60%) VBScript
Qualifications
1 37 (22.29%) Degree
2 28 (16.87%) Computer Science Degree
3 7 (4.22%) Azure Certification
4 2 (1.20%) TOGAF Certification
5 1 (0.60%) (ISC)2 CCSP
5 1 (0.60%) ACCA
5 1 (0.60%) CCSP
5 1 (0.60%) CISA
5 1 (0.60%) Cisco Certification
5 1 (0.60%) DBS Check
5 1 (0.60%) MCITP
5 1 (0.60%) MCSA
5 1 (0.60%) Microsoft Certification
5 1 (0.60%) SAP Certification
5 1 (0.60%) Security Cleared
Quality Assurance & Compliance
1 33 (19.88%) QA
2 12 (7.23%) GDPR
3 3 (1.81%) Data Quality
4 1 (0.60%) Accessibility
4 1 (0.60%) Cyber Essentials
4 1 (0.60%) Cyber Essentials PLUS
4 1 (0.60%) ISO 15022
4 1 (0.60%) ISO 20022
4 1 (0.60%) ISO/IEC 27001
System Software
1 9 (5.42%) Docker
2 2 (1.20%) Active Directory
2 2 (1.20%) VMware ESXi
2 2 (1.20%) VMware Infrastructure
3 1 (0.60%) Hyper-V
3 1 (0.60%) Virtual Desktop
Systems Management
1 9 (5.42%) Terraform
2 7 (4.22%) Kubernetes
3 2 (1.20%) Microsoft Intune
3 2 (1.20%) Prometheus
4 1 (0.60%) Ansible
4 1 (0.60%) Backup Exec
4 1 (0.60%) FortiGate
4 1 (0.60%) Grafana
4 1 (0.60%) Kibana
4 1 (0.60%) SCOM
Vendors
1 40 (24.10%) Microsoft
2 39 (23.49%) Oracle
3 27 (16.27%) Google
4 12 (7.23%) Salesforce
5 8 (4.82%) Databricks
6 4 (2.41%) Citrix
7 3 (1.81%) Alteryx
7 3 (1.81%) Anaplan
8 2 (1.20%) Cisco
8 2 (1.20%) MuleSoft
8 2 (1.20%) SAP
8 2 (1.20%) VMware
8 2 (1.20%) Workday
9 1 (0.60%) CheckPoint
9 1 (0.60%) EMC
9 1 (0.60%) Guidewire
9 1 (0.60%) HP
9 1 (0.60%) IBM
9 1 (0.60%) Meraki
9 1 (0.60%) Red Hat