Legacy Systems Job Trends

Legacy System
UK

The table below looks at the prevalence of the term Legacy Systems in permanent job vacancies. Included is a benchmarking guide to the salaries offered in vacancies that cited Legacy Systems over the 6 months leading up to 27 December 2025, comparing them to the same period in the previous two years.

6 months to
27 Dec 2025
Same period 2024 Same period 2023
Rank 232 376 423
Rank change year-on-year +144 +47 -42
Permanent jobs citing Legacy Systems 561 392 295
As % of all permanent jobs in the UK 0.94% 0.70% 0.57%
As % of the Miscellaneous category 2.69% 1.91% 1.52%
Number of salaries quoted 294 212 251
10th Percentile £45,375 £38,750 £39,800
25th Percentile £52,500 £40,000 £47,500
Median annual salary (50th Percentile) £65,000 £50,250 £60,000
Median % change year-on-year +29.35% -16.25% -17.24%
75th Percentile £82,875 £68,750 £78,750
90th Percentile £97,500 £113,875 £96,539
UK excluding London median annual salary £64,350 £45,000 £55,000
% change year-on-year +43.00% -18.18% -8.33%

All Generic Skills
UK

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.

Permanent vacancies with a requirement for generic IT skills 20,836 20,539 19,394
As % of all permanent jobs advertised in the UK 34.73% 36.86% 37.29%
Number of salaries quoted 10,496 9,893 14,189
10th Percentile £27,750 £33,199 £32,500
25th Percentile £36,250 £45,000 £43,750
Median annual salary (50th Percentile) £55,000 £60,000 £60,000
Median % change year-on-year -8.33% - -7.69%
75th Percentile £77,500 £82,500 £83,750
90th Percentile £100,000 £110,000 £107,500
UK excluding London median annual salary £46,500 £54,125 £55,000
% change year-on-year -14.09% -1.59% -

Legacy Systems
Job Vacancy Trend

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

Legacy Systems job vacancy trend in the UK

Legacy Systems
Salary Trend

Salary distribution trend for jobs in the UK citing Legacy Systems.

Salary distribution trend for jobs in the UK citing Legacy Systems

Legacy Systems
Salary Histogram

Salary distribution for jobs citing Legacy Systems over the 6 months to 27 December 2025.

Salary histogram for Legacy Systems in the UK

Legacy Systems
Top 17 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Legacy Systems within the UK over the 6 months to 27 December 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
England +136 493 £67,500 +31.07% 564
UK excluding London +95 319 £64,350 +43.00% 514
London +109 193 £75,000 +25.00% 122
Work from Home +68 142 £62,500 +24.38% 192
South West +87 112 £62,500 -7.41% 47
Midlands +27 64 £65,000 +52.94% 100
South East +15 50 £65,000 +44.44% 144
West Midlands +17 43 £65,000 +52.94% 48
North of England 0 40 £70,000 +64.71% 103
Wales +19 32 £55,000 +29.41% 15
East Midlands +6 21 £60,100 +33.56% 47
North West +4 21 £70,000 +64.71% 50
East of England +26 13 £62,500 -3.85% 81
North East +13 10 £70,000 +137.29% 13
Scotland +8 9 £47,500 +6.74% 26
Yorkshire -2 9 £65,000 +80.56% 40
Channel Islands - 1 £90,000 -

Legacy Systems
Co-Occurring Skills & Capabilities 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
1 103 (18.36%) Microsoft Exchange
2 14 (2.50%) Apache
2 14 (2.50%) Apache Airflow
3 10 (1.78%) SharePoint
4 8 (1.43%) Confluence
5 7 (1.25%) Appian
6 5 (0.89%) IIS
6 5 (0.89%) WinCC
7 4 (0.71%) CMS
8 3 (0.53%) Apache Spark
9 2 (0.36%) Apache Synapse
9 2 (0.36%) ColdFusion
9 2 (0.36%) FactoryTalk
9 2 (0.36%) JBoss
9 2 (0.36%) OpenEdge
9 2 (0.36%) SAS
10 1 (0.18%) Exchange Server 2003
10 1 (0.18%) Jupyter
10 1 (0.18%) Kentico
10 1 (0.18%) nginx
Applications
1 12 (2.14%) Microsoft Excel
2 11 (1.96%) Microsoft Office
3 3 (0.53%) Microsoft PowerPoint
3 3 (0.53%) MS Visio
3 3 (0.53%) Windchill
4 1 (0.18%) Adobe Illustrator
4 1 (0.18%) Adobe XD
4 1 (0.18%) Microsoft Project
4 1 (0.18%) Oracle Smart View
Business Applications
1 14 (2.50%) Dynamics CRM
2 7 (1.25%) Dynamics GP
3 5 (0.89%) Oracle Applications
4 4 (0.71%) SAP FI
5 3 (0.53%) NetSuite
6 2 (0.36%) Aladdin
6 2 (0.36%) Dynamics NAV
6 2 (0.36%) Oracle Cash Management
6 2 (0.36%) Oracle Payables
6 2 (0.36%) Oracle Procure-to-Pay
7 1 (0.18%) Primavera
7 1 (0.18%) Raiser’s Edge
7 1 (0.18%) SAP S/4HANA
Cloud Services
1 256 (45.63%) Azure
2 115 (20.50%) Microsoft 365
3 94 (16.76%) AWS
4 36 (6.42%) Power Platform
5 35 (6.24%) Azure DevOps
6 28 (4.99%) SaaS
7 26 (4.63%) Amazon Bedrock
7 26 (4.63%) Vertex AI
8 23 (4.10%) GitHub
9 17 (3.03%) GCP
10 13 (2.32%) Azure Data Factory
11 12 (2.14%) Dynamics 365
11 12 (2.14%) Entra ID
12 10 (1.78%) Amazon CloudWatch
12 10 (1.78%) Amazon SQS
12 10 (1.78%) ChatGPT
12 10 (1.78%) GitHub Copilot
13 9 (1.60%) Power Automate
13 9 (1.60%) Serverless
14 8 (1.43%) IaaS
Communications & Networking
1 102 (18.18%) DNS
2 101 (18.00%) DHCP
3 17 (3.03%) Firewall
4 7 (1.25%) Modbus
5 6 (1.07%) VPN
5 6 (1.07%) WAN
6 4 (0.71%) LAN
6 4 (0.71%) SD-WAN
6 4 (0.71%) TCP/IP
7 3 (0.53%) PuTTY
7 3 (0.53%) Wi-Fi
8 2 (0.36%) DMZ
8 2 (0.36%) Extranet
8 2 (0.36%) Intranet
8 2 (0.36%) Network Security
8 2 (0.36%) PSTN
8 2 (0.36%) SAN
8 2 (0.36%) Unified Communications
8 2 (0.36%) VoIP
9 1 (0.18%) SMTP
Database & Business Intelligence
1 137 (24.42%) SQL Server
2 96 (17.11%) Amazon RDS
3 52 (9.27%) MySQL
4 41 (7.31%) SQL Server Integration Services
5 28 (4.99%) Power BI
6 17 (3.03%) PostgreSQL
7 16 (2.85%) NoSQL
8 15 (2.67%) SQL Server Reporting Services
9 13 (2.32%) Relational Database
10 12 (2.14%) Metadata
11 11 (1.96%) Data Warehouse
12 7 (1.25%) Geospatial Data
12 7 (1.25%) Pinecone
13 6 (1.07%) Azure SQL Database
13 6 (1.07%) Data Lake
13 6 (1.07%) MongoDB
13 6 (1.07%) Oracle Database
14 5 (0.89%) Amazon Redshift
14 5 (0.89%) BigQuery
14 5 (0.89%) Metadata Repository
Development Applications
1 23 (4.10%) Octopus Deploy
2 22 (3.92%) Git
3 21 (3.74%) TeamCity
4 16 (2.85%) Jenkins
5 11 (1.96%) ERwin
5 11 (1.96%) GitLab
6 10 (1.78%) JIRA
7 9 (1.60%) Cucumber
7 9 (1.60%) JUnit
8 8 (1.43%) Selenium
9 7 (1.25%) MLflow
10 3 (0.53%) Maven
10 3 (0.53%) Sonatype Nexus
11 2 (0.36%) Artifactory
11 2 (0.36%) SonarQube
11 2 (0.36%) Synon
11 2 (0.36%) Visual Studio Code
12 1 (0.18%) JMeter
12 1 (0.18%) LoadRunner
12 1 (0.18%) Visual Studio
General
1 274 (48.84%) Social Skills
2 164 (29.23%) Analytical Skills
3 124 (22.10%) Finance
4 25 (4.46%) Banking
5 20 (3.57%) Public Sector
6 18 (3.21%) Legal
6 18 (3.21%) Retail
7 17 (3.03%) Inclusion and Diversity
8 16 (2.85%) Law
9 11 (1.96%) Manufacturing
10 9 (1.60%) Investment Banking
11 7 (1.25%) Influencing Skills
12 4 (0.71%) Organisational Skills
13 3 (0.53%) Aerospace
13 3 (0.53%) Back Office
13 3 (0.53%) Billing
13 3 (0.53%) Documentation Skills
14 2 (0.36%) Music Industry
14 2 (0.36%) Pharmaceutical
14 2 (0.36%) Police
Job Titles
1 96 (17.11%) Systems Engineer
2 91 (16.22%) Senior
3 89 (15.86%) Developer
4 71 (12.66%) Consultant
5 69 (12.30%) Architect
6 45 (8.02%) Lead
7 32 (5.70%) Analyst
8 27 (4.81%) Senior Developer
9 26 (4.63%) Gen AI Consultant
9 26 (4.63%) Senior Consultant
10 25 (4.46%) DevOps Engineer
11 24 (4.28%) Enterprise Architect
12 22 (3.92%) Data Architect
12 22 (3.92%) Data Engineer
13 17 (3.03%) Software Developer
14 16 (2.85%) Software Engineer
15 15 (2.67%) .NET Developer
16 14 (2.50%) Lead Architect
16 14 (2.50%) Solutions Architect
17 13 (2.32%) Business Analyst
Libraries, Frameworks & Software Standards
1 61 (10.87%) .NET
2 34 (6.06%) REST
3 30 (5.35%) RESTful
4 27 (4.81%) LangChain
4 27 (4.81%) React
5 21 (3.74%) Spring
5 21 (3.74%) Spring Boot
6 19 (3.39%) Pandas
7 17 (3.03%) Kafka
8 16 (2.85%) Django
9 15 (2.67%) Flask
9 15 (2.67%) pytest
9 15 (2.67%) Web Services
10 13 (2.32%) AngularJS
11 12 (2.14%) CSS
12 11 (1.96%) OAuth
13 10 (1.78%) Hibernate
13 10 (1.78%) HTML
13 10 (1.78%) JPA
13 10 (1.78%) Laravel
Miscellaneous
1 57 (10.16%) Cloud Native
2 32 (5.70%) Data Structures
3 26 (4.63%) Hybrid Cloud
4 22 (3.92%) Virtual Team
5 16 (2.85%) Data Centre
6 14 (2.50%) Driving Licence
6 14 (2.50%) Management Information System
7 11 (1.96%) Distributed Architecture
7 11 (1.96%) Legacy Applications
7 11 (1.96%) Operational Technology
8 10 (1.78%) Enterprise Software
8 10 (1.78%) Low-Code
9 9 (1.60%) Analytical Mindset
10 8 (1.43%) SCADA
11 6 (1.07%) Clustering
11 6 (1.07%) Product Ownership
12 5 (0.89%) Greenfield Project
12 5 (0.89%) Reference Data
13 4 (0.71%) Cyber Threat
13 4 (0.71%) NHS
Operating Systems
1 116 (20.68%) Windows
2 108 (19.25%) Linux
3 107 (19.07%) Windows Server
4 103 (18.36%) Windows Server 2016
5 4 (0.71%) VMS
6 3 (0.53%) Windows Server 2019
7 2 (0.36%) Apple iOS
7 2 (0.36%) CentOS
7 2 (0.36%) Red Hat Enterprise Linux
7 2 (0.36%) Ubuntu
7 2 (0.36%) Windows 10
8 1 (0.18%) Solaris
8 1 (0.18%) Unix
8 1 (0.18%) Windows Server 2003
8 1 (0.18%) Windows Server 2012
Processes & Methodologies
1 237 (42.25%) Migration
2 180 (32.09%) Problem-Solving
3 105 (18.72%) Agile
4 103 (18.36%) Customer Service
5 99 (17.65%) Customer Experience
6 96 (17.11%) Email Filtering
6 96 (17.11%) Kalman Filter
6 96 (17.11%) Vulnerability Remediation
6 96 (17.11%) Vulnerability Scanning
6 96 (17.11%) Web Filtering
7 95 (16.93%) DevOps
8 92 (16.40%) CI/CD
9 89 (15.86%) AI
10 78 (13.90%) Continuous Improvement
11 77 (13.73%) Stakeholder Management
12 66 (11.76%) Roadmaps
13 52 (9.27%) OO
14 48 (8.56%) Analytics
14 48 (8.56%) Data Modelling
14 48 (8.56%) Microservices
Programming Languages
1 93 (16.58%) SQL
2 54 (9.63%) Python
3 53 (9.45%) Delphi
4 44 (7.84%) Pascal
5 40 (7.13%) C#
6 35 (6.24%) PowerShell
7 34 (6.06%) Java
8 30 (5.35%) JavaScript
9 18 (3.21%) TypeScript
10 16 (2.85%) PHP
11 6 (1.07%) T-SQL
12 5 (0.89%) Bicep
13 4 (0.71%) PL/SQL
13 4 (0.71%) VB.NET
14 3 (0.53%) Bash
14 3 (0.53%) Scala
14 3 (0.53%) VB
15 2 (0.36%) RPG
15 2 (0.36%) Shell Script
16 1 (0.18%) VBScript
Qualifications
1 111 (19.79%) Security Cleared
2 110 (19.61%) SC Cleared
3 59 (10.52%) Degree
4 35 (6.24%) Computer Science Degree
5 8 (1.43%) Azure Certification
6 5 (0.89%) ACCA
6 5 (0.89%) CIMA
6 5 (0.89%) TOGAF Certification
7 4 (0.71%) Microsoft Certification
8 3 (0.53%) DV Cleared
8 3 (0.53%) HND
9 2 (0.36%) AWS Certification
9 2 (0.36%) AWS Certified Solutions Architect
9 2 (0.36%) CCNP
9 2 (0.36%) Cisco Certification
9 2 (0.36%) DBS Check
10 1 (0.18%) APMG
10 1 (0.18%) ITIL Foundation Certificate
10 1 (0.18%) Master's Degree
10 1 (0.18%) MCITP
Quality Assurance & Compliance
1 98 (17.47%) Cyber Essentials
2 97 (17.29%) PCI DSS
3 56 (9.98%) QA
4 29 (5.17%) Data Quality
5 14 (2.50%) GDPR
6 8 (1.43%) ISO/IEC 27001
7 6 (1.07%) Accessibility
8 5 (0.89%) IEC 61508
9 4 (0.71%) COBIT
10 3 (0.53%) IEC 61131
10 3 (0.53%) NIST
10 3 (0.53%) PMO
11 2 (0.36%) Cyber Essentials PLUS
11 2 (0.36%) ISO 20022
12 1 (0.18%) Actionable Recommendations
System Software
1 107 (19.07%) Active Directory
2 104 (18.54%) Hyper-V
3 96 (17.11%) Terminal Server
4 47 (8.38%) Docker
5 13 (2.32%) VMware Infrastructure
6 4 (0.71%) VMware ESXi
7 2 (0.36%) Virtual Desktop
8 1 (0.18%) Virtual Machines
8 1 (0.18%) Virtual Servers
8 1 (0.18%) VMware Server
8 1 (0.18%) vSphere
Systems Management
1 49 (8.73%) Kubernetes
2 41 (7.31%) Terraform
3 12 (2.14%) Grafana
4 7 (1.25%) Microsoft Intune
5 3 (0.53%) Prometheus
6 2 (0.36%) Ansible
6 2 (0.36%) CSIRT
6 2 (0.36%) Plesk
7 1 (0.18%) Backup Exec
7 1 (0.18%) Cisco CUCM
7 1 (0.18%) FortiGate
7 1 (0.18%) Jamf Pro
7 1 (0.18%) Kibana
7 1 (0.18%) SCOM
7 1 (0.18%) vCenter Server
7 1 (0.18%) VxRail
7 1 (0.18%) ZABBIX
Vendors
1 190 (33.87%) Microsoft
2 114 (20.32%) VMware
3 100 (17.83%) Splunk
4 99 (17.65%) SolarWinds
4 99 (17.65%) Veeam
5 96 (17.11%) Brocade
5 96 (17.11%) Nimble Storage
5 96 (17.11%) Tanium
6 79 (14.08%) Oracle
7 30 (5.35%) Google
8 13 (2.32%) Salesforce
8 13 (2.32%) SAP
9 10 (1.78%) Databricks
9 10 (1.78%) OpenAI
10 8 (1.43%) HubSpot
11 7 (1.25%) Automation Anywhere
11 7 (1.25%) Cisco
11 7 (1.25%) UiPath
12 6 (1.07%) Workday
13 5 (0.89%) Rockwell