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 23 December 2025, comparing them to the same period in the previous two years.

6 months to
23 Dec 2025
Same period 2024 Same period 2023
Rank 228 369 434
Rank change year-on-year +141 +65 -52
Permanent jobs citing Legacy Systems 567 388 292
As % of all permanent jobs in the UK 0.96% 0.69% 0.60%
As % of the Miscellaneous category 2.72% 1.88% 1.58%
Number of salaries quoted 301 215 249
10th Percentile £45,000 £38,750 £39,800
25th Percentile £52,500 £40,000 £47,500
Median annual salary (50th Percentile) £65,000 £50,500 £60,000
Median % change year-on-year +28.71% -15.83% -17.24%
75th Percentile £83,375 £68,750 £78,750
90th Percentile £98,000 £115,000 £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 20,872 20,645 18,530
As % of all permanent jobs advertised in the UK 35.25% 36.84% 38.17%
Number of salaries quoted 10,504 10,016 13,665
10th Percentile £27,750 £33,162 £32,500
25th Percentile £36,250 £45,000 £45,000
Median annual salary (50th Percentile) £55,000 £60,000 £62,500
Median % change year-on-year -8.33% -4.00% -3.85%
75th Percentile £77,500 £82,500 £84,056
90th Percentile £100,000 £110,000 £107,500
UK excluding London median annual salary £45,000 £54,000 £55,000
% change year-on-year -16.67% -1.82% -

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 23 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 23 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 +141 499 £67,500 +28.57% 534
UK excluding London +95 323 £64,350 +43.00% 481
London +116 195 £75,000 +25.00% 130
Work from Home +52 146 £62,500 +24.38% 231
South West +96 113 £63,425 +3.55% 45
Midlands +22 66 £65,000 +52.94% 94
South East +16 50 £65,000 +44.44% 138
West Midlands +23 44 £65,000 +52.94% 50
North of England -1 41 £70,000 +64.71% 84
Wales +18 32 £55,000 +29.41% 15
North West +22 24 £70,000 +64.71% 44
East Midlands +6 22 £55,200 +22.67% 42
East of England +21 13 £62,500 -3.85% 79
Scotland +8 9 £47,500 +6.74% 24
Yorkshire -10 9 £65,000 +44.44% 30
North East +7 8 £70,000 +137.29% 10
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 (18.17%) Microsoft Exchange
2 15 (2.65%) Apache
2 15 (2.65%) Apache Airflow
3 10 (1.76%) SharePoint
4 8 (1.41%) Confluence
5 6 (1.06%) Appian
5 6 (1.06%) IIS
6 5 (0.88%) WinCC
7 4 (0.71%) Apache Spark
7 4 (0.71%) CMS
8 3 (0.53%) Apache Synapse
9 2 (0.35%) ColdFusion
9 2 (0.35%) FactoryTalk
9 2 (0.35%) JBoss
9 2 (0.35%) OpenEdge
9 2 (0.35%) 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 (2.12%) Microsoft Excel
1 12 (2.12%) Microsoft Office
2 3 (0.53%) Microsoft PowerPoint
2 3 (0.53%) MS Visio
2 3 (0.53%) Windchill
3 1 (0.18%) Adobe Illustrator
3 1 (0.18%) Adobe XD
3 1 (0.18%) Microsoft Project
3 1 (0.18%) Oracle Smart View
Business Applications
1 14 (2.47%) Dynamics CRM
2 7 (1.23%) Dynamics GP
3 4 (0.71%) Oracle Applications
3 4 (0.71%) SAP FI
4 3 (0.53%) NetSuite
5 2 (0.35%) Aladdin
5 2 (0.35%) Dynamics NAV
5 2 (0.35%) Oracle Cash Management
5 2 (0.35%) Oracle Payables
5 2 (0.35%) Oracle Procure-to-Pay
5 2 (0.35%) SAP S/4HANA
6 1 (0.18%) Primavera
6 1 (0.18%) Raiser’s Edge
6 1 (0.18%) SAP MDG
Cloud Services
1 256 (45.15%) Azure
2 115 (20.28%) Microsoft 365
3 101 (17.81%) AWS
4 36 (6.35%) Power Platform
5 35 (6.17%) Azure DevOps
6 29 (5.11%) SaaS
7 26 (4.59%) Amazon Bedrock
7 26 (4.59%) Vertex AI
8 25 (4.41%) GitHub
9 19 (3.35%) GCP
10 13 (2.29%) Entra ID
10 13 (2.29%) Serverless
11 12 (2.12%) Amazon SQS
11 12 (2.12%) Azure Data Factory
11 12 (2.12%) Dynamics 365
12 10 (1.76%) Amazon CloudWatch
12 10 (1.76%) ChatGPT
12 10 (1.76%) GitHub Copilot
13 8 (1.41%) IaaS
13 8 (1.41%) OpenShift
Communications & Networking
1 102 (17.99%) DNS
2 101 (17.81%) DHCP
3 18 (3.17%) Firewall
4 7 (1.23%) Modbus
5 6 (1.06%) VPN
5 6 (1.06%) 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 (0.35%) DMZ
8 2 (0.35%) Extranet
8 2 (0.35%) Intranet
8 2 (0.35%) Network Security
8 2 (0.35%) PSTN
8 2 (0.35%) SAN
8 2 (0.35%) Unified Communications
8 2 (0.35%) VoIP
9 1 (0.18%) Fibre Channel
Database & Business Intelligence
1 136 (23.99%) SQL Server
2 97 (17.11%) Amazon RDS
3 52 (9.17%) MySQL
4 40 (7.05%) SQL Server Integration Services
5 28 (4.94%) Power BI
6 19 (3.35%) NoSQL
7 18 (3.17%) PostgreSQL
8 15 (2.65%) SQL Server Reporting Services
9 14 (2.47%) Relational Database
10 12 (2.12%) Metadata
11 11 (1.94%) Data Warehouse
12 7 (1.23%) Geospatial Data
12 7 (1.23%) MongoDB
13 6 (1.06%) Amazon Redshift
13 6 (1.06%) Azure SQL Database
13 6 (1.06%) BigQuery
13 6 (1.06%) Data Lake
13 6 (1.06%) Oracle Database
13 6 (1.06%) Pinecone
14 5 (0.88%) Metadata Repository
Development Applications
1 23 (4.06%) Octopus Deploy
2 22 (3.88%) Git
3 20 (3.53%) TeamCity
4 19 (3.35%) Jenkins
5 11 (1.94%) ERwin
5 11 (1.94%) GitLab
6 10 (1.76%) JIRA
6 10 (1.76%) JUnit
7 9 (1.59%) Cucumber
8 8 (1.41%) Selenium
9 6 (1.06%) MLflow
10 3 (0.53%) Maven
10 3 (0.53%) Sonatype Nexus
11 2 (0.35%) Artifactory
11 2 (0.35%) JMeter
11 2 (0.35%) SonarQube
11 2 (0.35%) Synon
11 2 (0.35%) Visual Studio Code
12 1 (0.18%) Postman
12 1 (0.18%) SQL Server Management Studio (SSMS)
General
1 274 (48.32%) Social Skills
2 167 (29.45%) Analytical Skills
3 126 (22.22%) Finance
4 26 (4.59%) Banking
5 23 (4.06%) Public Sector
6 19 (3.35%) Legal
7 18 (3.17%) Inclusion and Diversity
7 18 (3.17%) Retail
8 16 (2.82%) Law
9 11 (1.94%) Manufacturing
10 10 (1.76%) Investment Banking
11 7 (1.23%) Influencing Skills
12 5 (0.88%) Organisational Skills
13 3 (0.53%) Aerospace
13 3 (0.53%) Agriculture
13 3 (0.53%) Back Office
13 3 (0.53%) Billing
13 3 (0.53%) Documentation Skills
14 2 (0.35%) Advertising
14 2 (0.35%) Health Technology
Job Titles
1 96 (16.93%) Systems Engineer
2 90 (15.87%) Senior
3 89 (15.70%) Developer
4 73 (12.87%) Consultant
5 70 (12.35%) Architect
6 48 (8.47%) Lead
7 32 (5.64%) Analyst
8 27 (4.76%) Senior Developer
9 26 (4.59%) Gen AI Consultant
9 26 (4.59%) Senior Consultant
10 25 (4.41%) DevOps Engineer
11 24 (4.23%) Enterprise Architect
12 22 (3.88%) Data Architect
12 22 (3.88%) Data Engineer
13 17 (3.00%) Software Developer
14 16 (2.82%) .NET Developer
15 15 (2.65%) Software Engineer
15 15 (2.65%) Solutions Architect
16 14 (2.47%) Lead Architect
17 13 (2.29%) Business Analyst
Libraries, Frameworks & Software Standards
1 64 (11.29%) .NET
2 34 (6.00%) REST
3 29 (5.11%) RESTful
4 27 (4.76%) LangChain
4 27 (4.76%) React
5 22 (3.88%) Spring
5 22 (3.88%) Spring Boot
6 20 (3.53%) Kafka
7 18 (3.17%) Pandas
8 15 (2.65%) Django
8 15 (2.65%) Web Services
9 14 (2.47%) Flask
9 14 (2.47%) pytest
10 13 (2.29%) AngularJS
10 13 (2.29%) CSS
11 12 (2.12%) HTML
12 11 (1.94%) Hibernate
12 11 (1.94%) OAuth
13 10 (1.76%) .NET Core
13 10 (1.76%) JPA
Miscellaneous
1 60 (10.58%) Cloud Native
2 33 (5.82%) Data Structures
3 25 (4.41%) Hybrid Cloud
4 21 (3.70%) Virtual Team
5 17 (3.00%) Data Centre
6 14 (2.47%) Driving Licence
6 14 (2.47%) Management Information System
7 12 (2.12%) Operational Technology
8 11 (1.94%) Distributed Architecture
8 11 (1.94%) Legacy Applications
9 10 (1.76%) Analytical Mindset
10 9 (1.59%) Enterprise Software
10 9 (1.59%) Low-Code
11 8 (1.41%) SCADA
12 7 (1.23%) Clustering
13 6 (1.06%) Product Ownership
14 5 (0.88%) Greenfield Project
14 5 (0.88%) Reference Data
15 4 (0.71%) Cyber Threat
15 4 (0.71%) Data Protection Act
Operating Systems
1 116 (20.46%) Windows
2 109 (19.22%) Linux
3 107 (18.87%) Windows Server
4 103 (18.17%) Windows Server 2016
5 5 (0.88%) VMS
6 3 (0.53%) Windows Server 2019
7 2 (0.35%) Apple iOS
7 2 (0.35%) CentOS
7 2 (0.35%) Red Hat Enterprise Linux
7 2 (0.35%) Ubuntu
7 2 (0.35%) 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
1 243 (42.86%) Migration
2 181 (31.92%) Problem-Solving
3 109 (19.22%) Agile
4 103 (18.17%) Customer Service
5 99 (17.46%) Customer Experience
6 96 (16.93%) DevOps
6 96 (16.93%) Email Filtering
6 96 (16.93%) Kalman Filter
6 96 (16.93%) Vulnerability Remediation
6 96 (16.93%) Vulnerability Scanning
6 96 (16.93%) Web Filtering
7 94 (16.58%) CI/CD
8 88 (15.52%) AI
9 79 (13.93%) Continuous Improvement
10 78 (13.76%) Stakeholder Management
11 66 (11.64%) Roadmaps
12 52 (9.17%) Microservices
13 51 (8.99%) OO
14 49 (8.64%) Analytics
15 47 (8.29%) Data Modelling
Programming Languages
1 95 (16.75%) SQL
2 56 (9.88%) Python
3 53 (9.35%) Delphi
4 44 (7.76%) Pascal
5 42 (7.41%) C#
6 35 (6.17%) Java
6 35 (6.17%) PowerShell
7 32 (5.64%) JavaScript
8 18 (3.17%) TypeScript
9 15 (2.65%) PHP
10 6 (1.06%) T-SQL
11 5 (0.88%) Bicep
12 4 (0.71%) Bash
12 4 (0.71%) PL/SQL
12 4 (0.71%) VB.NET
13 3 (0.53%) Scala
13 3 (0.53%) Shell Script
13 3 (0.53%) VB
14 2 (0.35%) RPG
15 1 (0.18%) Perl
Qualifications
1 112 (19.75%) Security Cleared
2 110 (19.40%) SC Cleared
3 60 (10.58%) Degree
4 35 (6.17%) Computer Science Degree
5 9 (1.59%) Azure Certification
6 5 (0.88%) ACCA
6 5 (0.88%) CIMA
6 5 (0.88%) TOGAF Certification
7 4 (0.71%) Microsoft Certification
8 3 (0.53%) DV Cleared
8 3 (0.53%) HND
9 2 (0.35%) AWS Certification
9 2 (0.35%) AWS Certified Solutions Architect
9 2 (0.35%) CCNP
9 2 (0.35%) Cisco Certification
9 2 (0.35%) DBS Check
10 1 (0.18%) APMG
10 1 (0.18%) CCNA
10 1 (0.18%) ITIL Foundation Certificate
10 1 (0.18%) Master's Degree
Quality Assurance & Compliance
1 98 (17.28%) Cyber Essentials
2 97 (17.11%) PCI DSS
3 57 (10.05%) QA
4 29 (5.11%) Data Quality
5 14 (2.47%) GDPR
6 8 (1.41%) ISO/IEC 27001
7 5 (0.88%) Accessibility
7 5 (0.88%) IEC 61508
8 4 (0.71%) COBIT
9 3 (0.53%) IEC 61131
9 3 (0.53%) NIST
9 3 (0.53%) PMO
10 2 (0.35%) Cyber Essentials PLUS
10 2 (0.35%) ISO 20022
11 1 (0.18%) Actionable Recommendations
System Software
1 107 (18.87%) Active Directory
2 104 (18.34%) Hyper-V
3 96 (16.93%) Terminal Server
4 50 (8.82%) Docker
5 13 (2.29%) VMware Infrastructure
6 4 (0.71%) VMware ESXi
7 2 (0.35%) 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 51 (8.99%) Kubernetes
2 44 (7.76%) Terraform
3 12 (2.12%) Grafana
4 7 (1.23%) Microsoft Intune
5 3 (0.53%) Prometheus
6 2 (0.35%) Ansible
6 2 (0.35%) CSIRT
6 2 (0.35%) Kibana
6 2 (0.35%) 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%) SCOM
7 1 (0.18%) vCenter Server
7 1 (0.18%) VxRail
7 1 (0.18%) ZABBIX
Vendors
1 192 (33.86%) Microsoft
2 114 (20.11%) VMware
3 101 (17.81%) Splunk
4 99 (17.46%) SolarWinds
4 99 (17.46%) Veeam
5 96 (16.93%) Brocade
5 96 (16.93%) Nimble Storage
5 96 (16.93%) Tanium
6 78 (13.76%) Oracle
7 30 (5.29%) Google
8 14 (2.47%) Salesforce
8 14 (2.47%) SAP
9 11 (1.94%) Databricks
10 9 (1.59%) OpenAI
11 7 (1.23%) Cisco
11 7 (1.23%) HubSpot
12 6 (1.06%) Automation Anywhere
12 6 (1.06%) UiPath
12 6 (1.06%) Workday
13 5 (0.88%) MuleSoft