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 26 November 2025, comparing them to the same period in the previous two years.

6 months to
26 Nov 2025
Same period 2024 Same period 2023
Rank 202 341 355
Rank change year-on-year +139 +14 +25
Permanent jobs citing Legacy Systems 202 112 96
As % of all permanent jobs in London 1.55% 0.64% 0.52%
As % of the Miscellaneous category 3.42% 1.53% 1.27%
Number of salaries quoted 98 75 90
10th Percentile £52,500 £38,750 £52,250
25th Percentile £56,250 £43,227 £62,500
Median annual salary (50th Percentile) £77,500 £62,500 £81,500
Median % change year-on-year +24.00% -23.31% -2.69%
75th Percentile £93,438 £120,000 £90,000
90th Percentile £108,250 £142,500 £100,000
England median annual salary £67,500 £52,500 £65,000
% change year-on-year +28.57% -19.23% -10.34%

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 5,904 7,339 7,586
As % of all permanent jobs advertised in London 45.31% 41.85% 40.85%
Number of salaries quoted 3,431 4,101 5,916
10th Percentile £36,000 £43,910 £40,500
25th Percentile £51,002 £56,250 £56,250
Median annual salary (50th Percentile) £75,000 £80,000 £79,632
Median % change year-on-year -6.25% +0.46% +6.18%
75th Percentile £102,500 £107,500 £100,000
90th Percentile £130,000 £130,000 £130,000
England median annual salary £55,000 £60,000 £62,500
% change year-on-year -8.33% -4.00% -2.34%

Legacy Systems
Job Vacancy Trend in London

Historical trend showing the proportion of permanent IT job postings citing Legacy Systems relative to all permanent IT jobs advertised in London.

Legacy Systems job vacancy trend 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 26 November 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 26 November 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 +57 23 £66,250 -17.19% 12
West London +6 4 - - 3
South London +26 2 £55,200 -55.84% 2
Legacy Systems
England

Legacy Systems
Co-Occurring Skills & Capabilities in London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 9 (4.46%) Apache
1 9 (4.46%) Apache Airflow
2 7 (3.47%) Apache Spark
2 7 (3.47%) SharePoint
3 4 (1.98%) Apache Synapse
4 3 (1.49%) Appian
4 3 (1.49%) Microsoft Exchange
5 2 (0.99%) Confluence
6 1 (0.50%) nginx
6 1 (0.50%) SAS
Applications
1 9 (4.46%) Microsoft Office
2 4 (1.98%) Microsoft Excel
3 2 (0.99%) Microsoft PowerPoint
Business Applications
1 2 (0.99%) SAP S/4HANA
2 1 (0.50%) Aladdin
2 1 (0.50%) Dynamics CRM
2 1 (0.50%) NetSuite
2 1 (0.50%) SAP MDG
2 1 (0.50%) Shopify
Cloud Services
1 55 (27.23%) Azure
2 48 (23.76%) AWS
3 25 (12.38%) Amazon Bedrock
3 25 (12.38%) Vertex AI
4 17 (8.42%) SaaS
5 14 (6.93%) Azure DevOps
5 14 (6.93%) Power Platform
6 8 (3.96%) GCP
7 7 (3.47%) Azure Data Factory
7 7 (3.47%) GitHub
7 7 (3.47%) Microsoft 365
7 7 (3.47%) Power Automate
8 6 (2.97%) ChatGPT
8 6 (2.97%) Dynamics 365
8 6 (2.97%) GitHub Copilot
9 5 (2.48%) Amazon SQS
9 5 (2.48%) Azure Logic Apps
9 5 (2.48%) Serverless
9 5 (2.48%) Snowflake
10 4 (1.98%) Amazon Kinesis
Communications & Networking
1 6 (2.97%) Firewall
2 4 (1.98%) WAN
3 3 (1.49%) Intranet
3 3 (1.49%) LAN
3 3 (1.49%) SD-WAN
3 3 (1.49%) Wi-Fi
4 2 (0.99%) Extranet
4 2 (0.99%) SAN
4 2 (0.99%) TCP/IP
5 1 (0.50%) DHCP
5 1 (0.50%) DNS
5 1 (0.50%) Fibre Channel
5 1 (0.50%) iSCSI
5 1 (0.50%) NAS
5 1 (0.50%) Network Security
5 1 (0.50%) PSTN
5 1 (0.50%) Unified Communications
5 1 (0.50%) VoIP
5 1 (0.50%) VPN
Database & Business Intelligence
1 68 (33.66%) SQL Server
2 44 (21.78%) MySQL
3 10 (4.95%) SQL Server Integration Services
4 8 (3.96%) Power BI
5 7 (3.47%) Relational Database
6 6 (2.97%) NoSQL
7 5 (2.48%) BigQuery
8 4 (1.98%) Amazon Redshift
8 4 (1.98%) Big Data
8 4 (1.98%) Data Mining
9 3 (1.49%) Delta Lake
9 3 (1.49%) Metadata
9 3 (1.49%) Pinecone
9 3 (1.49%) PostgreSQL
10 2 (0.99%) Data Vault
10 2 (0.99%) Hadoop
10 2 (0.99%) Oracle Database
10 2 (0.99%) Snowflake Schema
11 1 (0.50%) Azure SQL Database
11 1 (0.50%) RDBMS
Development Applications
1 11 (5.45%) ERwin
2 8 (3.96%) Jenkins
2 8 (3.96%) Octopus Deploy
3 6 (2.97%) Git
3 6 (2.97%) TeamCity
4 4 (1.98%) JIRA
5 3 (1.49%) GitLab
5 3 (1.49%) MLflow
6 2 (0.99%) Artifactory
6 2 (0.99%) JUnit
6 2 (0.99%) Synon
7 1 (0.50%) Cucumber
7 1 (0.50%) JMeter
7 1 (0.50%) Mockito
7 1 (0.50%) Selenium
7 1 (0.50%) Vite
General
1 89 (44.06%) Social Skills
2 50 (24.75%) Analytical Skills
3 39 (19.31%) Finance
4 12 (5.94%) Banking
5 9 (4.46%) Investment Banking
5 9 (4.46%) Legal
6 8 (3.96%) Law
7 7 (3.47%) Inclusion and Diversity
8 6 (2.97%) Public Sector
9 5 (2.48%) Documentation Skills
10 3 (1.49%) Retail
11 2 (0.99%) Back Office
11 2 (0.99%) Marketing
11 2 (0.99%) Music Industry
12 1 (0.50%) Front Office
12 1 (0.50%) Health Technology
12 1 (0.50%) International Banking
12 1 (0.50%) Local Government
12 1 (0.50%) Mandarin Language
Job Titles
1 70 (34.65%) Consultant
2 44 (21.78%) Senior
3 32 (15.84%) Architect
3 32 (15.84%) Developer
4 25 (12.38%) Gen AI Consultant
4 25 (12.38%) Senior Consultant
5 24 (11.88%) Lead
6 13 (6.44%) Data Architect
7 11 (5.45%) Lead Architect
7 11 (5.45%) Lead Data Architect
7 11 (5.45%) Senior Developer
8 8 (3.96%) Analyst
8 8 (3.96%) CRM Manager
8 8 (3.96%) Data Engineer
8 8 (3.96%) Lead Developer
8 8 (3.96%) Platform Manager
8 8 (3.96%) Solutions Architect
9 6 (2.97%) Artificial Intelligence Developer
9 6 (2.97%) DevOps Engineer
9 6 (2.97%) Enterprise Architect
Libraries, Frameworks & Software Standards
1 25 (12.38%) LangChain
2 16 (7.92%) REST
3 11 (5.45%) .NET
4 10 (4.95%) Kafka
4 10 (4.95%) Pandas
5 8 (3.96%) Laravel
5 8 (3.96%) RESTful
6 7 (3.47%) Django
6 7 (3.47%) React
6 7 (3.47%) Spring
6 7 (3.47%) Spring Boot
6 7 (3.47%) Web Services
7 6 (2.97%) Hibernate
8 5 (2.48%) JPA
8 5 (2.48%) NumPy
8 5 (2.48%) scikit-learn
8 5 (2.48%) Tailwind CSS
9 4 (1.98%) Apache Beam
9 4 (1.98%) FastAPI
9 4 (1.98%) PyTorch
Miscellaneous
1 20 (9.90%) Data Structures
2 18 (8.91%) Cloud Native
3 9 (4.46%) Management Information System
4 7 (3.47%) Virtual Team
5 6 (2.97%) Hybrid Cloud
5 6 (2.97%) Low-Code
6 5 (2.48%) Analytical Mindset
6 5 (2.48%) Distributed Architecture
7 4 (1.98%) e-Learning
7 4 (1.98%) Enterprise Software
7 4 (1.98%) Product Ownership
8 3 (1.49%) Onboarding
9 2 (0.99%) CMDB
9 2 (0.99%) Cyber Threat
9 2 (0.99%) Legacy Applications
9 2 (0.99%) Shadow IT
10 1 (0.50%) Credit Risk
10 1 (0.50%) Distributed Systems
10 1 (0.50%) Market Risk
10 1 (0.50%) Video Conferencing
Operating Systems
1 5 (2.48%) Windows
2 3 (1.49%) Windows Server
3 2 (0.99%) VMS
4 1 (0.50%) Linux
4 1 (0.50%) Windows Server 2012
Processes & Methodologies
1 51 (25.25%) Migration
2 48 (23.76%) Agile
2 48 (23.76%) Stakeholder Management
3 47 (23.27%) OO
4 46 (22.77%) AI
5 44 (21.78%) OOP
6 41 (20.30%) CI/CD
7 38 (18.81%) Thought Leadership
8 36 (17.82%) DevOps
9 34 (16.83%) Machine Learning
10 33 (16.34%) Computer Science
11 32 (15.84%) IT Strategy
12 30 (14.85%) LLM
13 29 (14.36%) Prompt Engineering
13 29 (14.36%) Roadmaps
14 28 (13.86%) Generative AI
14 28 (13.86%) MLOps
14 28 (13.86%) Retrieval-Augmented Generation
15 26 (12.87%) Business Development
16 25 (12.38%) Data Modelling
Programming Languages
1 45 (22.28%) Delphi
2 44 (21.78%) Pascal
3 33 (16.34%) SQL
4 24 (11.88%) Python
5 13 (6.44%) Java
5 13 (6.44%) PHP
6 12 (5.94%) PowerShell
7 8 (3.96%) JavaScript
8 5 (2.48%) C#
9 2 (0.99%) Bicep
9 2 (0.99%) Data Analysis Expressions
9 2 (0.99%) PL/SQL
9 2 (0.99%) RPG
9 2 (0.99%) Shell Script
9 2 (0.99%) TypeScript
10 1 (0.50%) Bash
10 1 (0.50%) Elixir
10 1 (0.50%) Go
10 1 (0.50%) Rust
10 1 (0.50%) Scala
Qualifications
1 39 (19.31%) Degree
2 31 (15.35%) Computer Science Degree
3 6 (2.97%) Azure Certification
4 3 (1.49%) Security Cleared
5 2 (0.99%) Cisco Certification
5 2 (0.99%) SC Cleared
5 2 (0.99%) TOGAF Certification
6 1 (0.50%) (ISC)2 CCSP
6 1 (0.50%) ACCA
6 1 (0.50%) CCNP
6 1 (0.50%) CCSP
6 1 (0.50%) CISA
6 1 (0.50%) DBS Check
6 1 (0.50%) Master's Degree
6 1 (0.50%) MCITP
6 1 (0.50%) MCSA
6 1 (0.50%) Microsoft Certification
6 1 (0.50%) PhD
6 1 (0.50%) SAP Certification
Quality Assurance & Compliance
1 47 (23.27%) QA
2 12 (5.94%) GDPR
3 6 (2.97%) Data Quality
4 4 (1.98%) ISO/IEC 27001
5 3 (1.49%) Accessibility
6 2 (0.99%) COBIT
7 1 (0.50%) Cyber Essentials
7 1 (0.50%) Cyber Essentials PLUS
7 1 (0.50%) NIST
System Software
1 14 (6.93%) Docker
2 3 (1.49%) Active Directory
2 3 (1.49%) VMware ESXi
2 3 (1.49%) VMware Infrastructure
3 1 (0.50%) Hyper-V
3 1 (0.50%) Virtual Desktop
3 1 (0.50%) VMware Server
3 1 (0.50%) vSphere
Systems Management
1 18 (8.91%) Kubernetes
2 17 (8.42%) Terraform
3 3 (1.49%) Microsoft Intune
4 2 (0.99%) Ansible
4 2 (0.99%) Grafana
4 2 (0.99%) Prometheus
5 1 (0.50%) Backup Exec
5 1 (0.50%) Cisco CUCM
5 1 (0.50%) FortiGate
5 1 (0.50%) Kibana
5 1 (0.50%) SCOM
5 1 (0.50%) vCenter Server
5 1 (0.50%) ZABBIX
Vendors
1 53 (26.24%) Oracle
2 45 (22.28%) Microsoft
3 27 (13.37%) Google
4 12 (5.94%) Salesforce
5 8 (3.96%) Databricks
6 5 (2.48%) Cisco
6 5 (2.48%) VMware
7 4 (1.98%) Citrix
7 4 (1.98%) OpenAI
8 3 (1.49%) Automation Anywhere
8 3 (1.49%) SAP
8 3 (1.49%) UiPath
8 3 (1.49%) Workday
9 2 (0.99%) BiZZdesign
9 2 (0.99%) IBM
9 2 (0.99%) Meraki
9 2 (0.99%) New Relic
9 2 (0.99%) ServiceNow
9 2 (0.99%) SolarWinds
9 2 (0.99%) Sparx