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

6 months to
25 Dec 2025
Same period 2024 Same period 2023
Rank 230 370 433
Rank change year-on-year +140 +63 -43
Permanent jobs citing Legacy Systems 566 392 291
As % of all permanent jobs in the UK 0.95% 0.70% 0.58%
As % of the Miscellaneous category 2.72% 1.90% 1.55%
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 £52,500 £60,000
Median % change year-on-year +23.81% -12.50% -17.24%
75th Percentile £83,000 £68,750 £78,750
90th Percentile £97,500 £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 20,847 20,656 18,832
As % of all permanent jobs advertised in the UK 34.93% 36.82% 37.55%
Number of salaries quoted 10,494 10,007 13,804
10th Percentile £27,750 £33,125 £32,500
25th Percentile £36,250 £45,000 £45,000
Median annual salary (50th Percentile) £55,000 £60,000 £61,000
Median % change year-on-year -8.33% -1.64% -6.15%
75th Percentile £77,500 £82,500 £84,056
90th Percentile £100,000 £110,000 £107,500
UK excluding London median annual salary £45,974 £54,000 £55,000
% change year-on-year -14.86% -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 25 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 25 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 +147 498 £67,500 +28.57% 464
UK excluding London +102 322 £64,350 +43.00% 405
London +126 195 £75,000 +25.00% 124
Work from Home +73 145 £62,500 +23.76% 212
South West +96 113 £63,425 -6.04% 32
Midlands +23 65 £65,000 +52.94% 87
South East +20 49 £65,000 +44.44% 115
West Midlands +18 44 £65,000 +52.94% 44
North of England +6 42 £70,000 +64.71% 79
Wales +26 32 £55,000 +29.41% 12
North West +11 23 £70,000 +64.71% 38
East Midlands +2 21 £55,200 +22.67% 41
East of England +29 13 £62,500 -3.85% 59
North East +12 10 £70,000 +137.29% 12
Scotland +5 9 £47,500 +6.74% 19
Yorkshire -9 9 £65,000 +44.44% 29
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 (18.20%) Microsoft Exchange
2 15 (2.65%) Apache
2 15 (2.65%) Apache Airflow
3 10 (1.77%) 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 (1.24%) 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
6 1 (0.18%) Primavera
6 1 (0.18%) Raiser’s Edge
6 1 (0.18%) SAP S/4HANA
Cloud Services
1 257 (45.41%) Azure
2 115 (20.32%) Microsoft 365
3 100 (17.67%) AWS
4 36 (6.36%) Azure DevOps
4 36 (6.36%) Power Platform
5 29 (5.12%) SaaS
6 26 (4.59%) Amazon Bedrock
6 26 (4.59%) Vertex AI
7 25 (4.42%) GitHub
8 19 (3.36%) GCP
9 13 (2.30%) Entra ID
9 13 (2.30%) Serverless
10 12 (2.12%) Amazon SQS
10 12 (2.12%) Azure Data Factory
10 12 (2.12%) Dynamics 365
11 10 (1.77%) Amazon CloudWatch
11 10 (1.77%) ChatGPT
11 10 (1.77%) GitHub Copilot
12 8 (1.41%) Azure Synapse Analytics
12 8 (1.41%) Power Automate
Communications & Networking
1 102 (18.02%) DNS
2 101 (17.84%) DHCP
3 18 (3.18%) Firewall
4 7 (1.24%) 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%) BGP
Database & Business Intelligence
1 136 (24.03%) SQL Server
2 97 (17.14%) Amazon RDS
3 52 (9.19%) MySQL
4 41 (7.24%) SQL Server Integration Services
5 28 (4.95%) Power BI
6 18 (3.18%) NoSQL
6 18 (3.18%) PostgreSQL
7 15 (2.65%) SQL Server Reporting Services
8 14 (2.47%) Relational Database
9 12 (2.12%) Metadata
10 11 (1.94%) Data Warehouse
11 7 (1.24%) Geospatial Data
12 6 (1.06%) Amazon Redshift
12 6 (1.06%) Azure SQL Database
12 6 (1.06%) BigQuery
12 6 (1.06%) Data Lake
12 6 (1.06%) MongoDB
12 6 (1.06%) Oracle Database
12 6 (1.06%) Pinecone
13 5 (0.88%) Metadata Repository
Development Applications
1 24 (4.24%) Octopus Deploy
2 22 (3.89%) Git
3 21 (3.71%) TeamCity
4 19 (3.36%) Jenkins
5 11 (1.94%) ERwin
5 11 (1.94%) GitLab
6 10 (1.77%) JIRA
6 10 (1.77%) 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%) LoadRunner
12 1 (0.18%) Visual Studio
General
1 274 (48.41%) Social Skills
2 166 (29.33%) Analytical Skills
3 127 (22.44%) Finance
4 26 (4.59%) Banking
5 22 (3.89%) Public Sector
6 19 (3.36%) Legal
7 18 (3.18%) Inclusion and Diversity
7 18 (3.18%) Retail
8 16 (2.83%) Law
9 11 (1.94%) Manufacturing
10 10 (1.77%) Investment Banking
11 7 (1.24%) 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%) Music Industry
Job Titles
1 96 (16.96%) Systems Engineer
2 91 (16.08%) Senior
3 90 (15.90%) Developer
4 72 (12.72%) Consultant
5 70 (12.37%) Architect
6 46 (8.13%) Lead
7 32 (5.65%) Analyst
8 28 (4.95%) Senior Developer
9 26 (4.59%) DevOps Engineer
9 26 (4.59%) Gen AI Consultant
9 26 (4.59%) Senior Consultant
10 24 (4.24%) Enterprise Architect
11 22 (3.89%) Data Architect
11 22 (3.89%) Data Engineer
12 17 (3.00%) Software Developer
13 15 (2.65%) .NET Developer
13 15 (2.65%) Software Engineer
13 15 (2.65%) Solutions Architect
14 14 (2.47%) Lead Architect
15 13 (2.30%) Business Analyst
Libraries, Frameworks & Software Standards
1 64 (11.31%) .NET
2 34 (6.01%) REST
3 29 (5.12%) RESTful
4 27 (4.77%) LangChain
4 27 (4.77%) React
5 22 (3.89%) Spring
5 22 (3.89%) Spring Boot
6 20 (3.53%) Kafka
7 18 (3.18%) Pandas
8 15 (2.65%) Django
8 15 (2.65%) Web Services
9 14 (2.47%) Flask
9 14 (2.47%) pytest
10 13 (2.30%) AngularJS
10 13 (2.30%) CSS
11 12 (2.12%) HTML
12 11 (1.94%) Hibernate
12 11 (1.94%) OAuth
13 10 (1.77%) .NET Core
13 10 (1.77%) JPA
Miscellaneous
1 60 (10.60%) Cloud Native
2 32 (5.65%) Data Structures
3 26 (4.59%) Hybrid Cloud
4 22 (3.89%) Virtual Team
5 17 (3.00%) Data Centre
6 14 (2.47%) Driving Licence
6 14 (2.47%) Management Information System
7 11 (1.94%) Distributed Architecture
7 11 (1.94%) Legacy Applications
7 11 (1.94%) Operational Technology
8 10 (1.77%) Analytical Mindset
9 9 (1.59%) Enterprise Software
9 9 (1.59%) Low-Code
10 8 (1.41%) SCADA
11 6 (1.06%) Clustering
11 6 (1.06%) Product Ownership
12 5 (0.88%) Greenfield Project
12 5 (0.88%) Reference Data
13 4 (0.71%) Cyber Threat
13 4 (0.71%) NHS
Operating Systems
1 116 (20.49%) Windows
2 109 (19.26%) Linux
3 107 (18.90%) Windows Server
4 103 (18.20%) 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
1 242 (42.76%) Migration
2 181 (31.98%) Problem-Solving
3 109 (19.26%) Agile
4 103 (18.20%) Customer Service
5 99 (17.49%) Customer Experience
6 97 (17.14%) DevOps
7 96 (16.96%) Email Filtering
7 96 (16.96%) Kalman Filter
7 96 (16.96%) Vulnerability Remediation
7 96 (16.96%) Vulnerability Scanning
7 96 (16.96%) Web Filtering
8 95 (16.78%) CI/CD
9 89 (15.72%) AI
10 78 (13.78%) Continuous Improvement
10 78 (13.78%) Stakeholder Management
11 65 (11.48%) Roadmaps
12 51 (9.01%) Microservices
12 51 (9.01%) OO
13 49 (8.66%) Analytics
14 47 (8.30%) Data Modelling
Programming Languages
1 96 (16.96%) SQL
2 56 (9.89%) Python
3 53 (9.36%) Delphi
4 44 (7.77%) Pascal
5 42 (7.42%) C#
6 36 (6.36%) PowerShell
7 35 (6.18%) Java
8 32 (5.65%) JavaScript
9 18 (3.18%) TypeScript
10 15 (2.65%) PHP
11 6 (1.06%) T-SQL
12 5 (0.88%) Bicep
13 4 (0.71%) Bash
13 4 (0.71%) PL/SQL
13 4 (0.71%) VB.NET
14 3 (0.53%) Scala
14 3 (0.53%) Shell Script
14 3 (0.53%) VB
15 2 (0.35%) RPG
16 1 (0.18%) Perl
Qualifications
1 111 (19.61%) Security Cleared
2 110 (19.43%) SC Cleared
3 60 (10.60%) Degree
4 35 (6.18%) 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%) ITIL Foundation Certificate
10 1 (0.18%) Master's Degree
10 1 (0.18%) MCITP
Quality Assurance & Compliance
1 98 (17.31%) Cyber Essentials
2 97 (17.14%) PCI DSS
3 57 (10.07%) QA
4 29 (5.12%) 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 (18.90%) Active Directory
2 104 (18.37%) Hyper-V
3 96 (16.96%) Terminal Server
4 50 (8.83%) Docker
5 13 (2.30%) 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 (9.01%) Kubernetes
2 45 (7.95%) Terraform
3 12 (2.12%) Grafana
4 7 (1.24%) 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 (33.92%) Microsoft
2 114 (20.14%) VMware
3 101 (17.84%) Splunk
4 99 (17.49%) SolarWinds
4 99 (17.49%) Veeam
5 96 (16.96%) Brocade
5 96 (16.96%) Nimble Storage
5 96 (16.96%) Tanium
6 78 (13.78%) Oracle
7 30 (5.30%) Google
8 14 (2.47%) Salesforce
9 13 (2.30%) SAP
10 11 (1.94%) Databricks
11 9 (1.59%) OpenAI
12 7 (1.24%) Cisco
12 7 (1.24%) HubSpot
13 6 (1.06%) Automation Anywhere
13 6 (1.06%) UiPath
13 6 (1.06%) Workday
14 5 (0.88%) MuleSoft