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

6 months to
1 Nov 2025
Same period 2024 Same period 2023
Rank 260 423 420
Rank change year-on-year +163 -3 -11
Permanent jobs citing Legacy Systems 535 350 354
As % of all permanent jobs in the UK 1.06% 0.51% 0.65%
As % of the Miscellaneous category 2.77% 1.59% 1.68%
Number of salaries quoted 299 204 316
10th Percentile £46,250 £38,750 £39,974
25th Percentile £52,500 £42,500 £50,000
Median annual salary (50th Percentile) £65,000 £53,500 £65,000
Median % change year-on-year +21.50% -17.69% -7.14%
75th Percentile £81,125 £83,125 £85,875
90th Percentile £95,000 £122,625 £97,500
UK excluding London median annual salary £62,500 £50,000 £57,500
% change year-on-year +25.00% -13.04% -9.00%

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 19,287 22,001 21,099
As % of all permanent jobs advertised in the UK 38.27% 32.36% 38.93%
Number of salaries quoted 10,437 10,737 15,859
10th Percentile £28,000 £33,105 £34,000
25th Percentile £36,250 £45,750 £45,500
Median annual salary (50th Percentile) £53,750 £60,000 £62,500
Median % change year-on-year -10.42% -4.00% -
75th Percentile £77,500 £83,750 £83,750
90th Percentile £102,500 £110,000 £106,289
UK excluding London median annual salary £45,000 £54,000 £55,000
% change year-on-year -16.67% -1.82% +0.92%

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 1 November 2025.

Salary histogram for Legacy Systems in the UK

Legacy Systems
Top 16 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 1 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
England +170 475 £67,500 +26.17% 309
UK excluding London +109 302 £62,500 +25.00% 245
London +124 194 £76,250 +8.93% 131
Work from Home +22 130 £64,350 +28.70% 188
South West +108 89 £64,350 +17.00% 34
Midlands +66 68 £65,000 +30.00% 44
South East +14 51 £62,500 +38.89% 108
West Midlands +54 50 £65,000 +30.00% 28
North of England +1 44 £70,000 +40.00% 34
North West +18 33 £71,250 +42.50% 16
Wales +24 26 £55,000 +46.67% 8
East Midlands +18 18 £52,500 +20.00% 16
Scotland -7 15 £52,500 +17.98% 10
East of England +11 11 £62,500 -3.85% 10
Yorkshire +6 9 £65,000 -21.21% 10
North East +6 2 £72,500 - 8

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 80 (14.95%) Microsoft Exchange
2 17 (3.18%) Apache
3 16 (2.99%) Apache Airflow
4 13 (2.43%) Apache Spark
5 12 (2.24%) SharePoint
6 7 (1.31%) Confluence
7 5 (0.93%) WinCC
8 4 (0.75%) Apache Synapse
8 4 (0.75%) CMS
9 3 (0.56%) IIS
10 2 (0.37%) FactoryTalk
10 2 (0.37%) JBoss
10 2 (0.37%) OpenEdge
10 2 (0.37%) SAS
11 1 (0.19%) Adobe Experience Manager
11 1 (0.19%) ColdFusion
11 1 (0.19%) Exchange Server 2003
11 1 (0.19%) Jupyter
11 1 (0.19%) Kentico
11 1 (0.19%) nginx
Applications
1 12 (2.24%) Microsoft Excel
1 12 (2.24%) Microsoft Office
2 7 (1.31%) Microsoft PowerPoint
3 3 (0.56%) Windchill
4 1 (0.19%) Adobe Illustrator
4 1 (0.19%) Adobe XD
4 1 (0.19%) Microsoft Project
4 1 (0.19%) Oracle Smart View
Business Applications
1 9 (1.68%) Dynamics CRM
2 5 (0.93%) Dynamics GP
3 4 (0.75%) NetSuite
3 4 (0.75%) Oracle EBS
3 4 (0.75%) SAP FI
3 4 (0.75%) SAP S/4HANA
4 3 (0.56%) Oracle Payables
4 3 (0.56%) Shopify
5 2 (0.37%) Dynamics NAV
5 2 (0.37%) Oracle Cash Management
5 2 (0.37%) Oracle Procure-to-Pay
6 1 (0.19%) Aladdin
6 1 (0.19%) Infor M3
6 1 (0.19%) Primavera
6 1 (0.19%) Raiser’s Edge
6 1 (0.19%) SAP MDG
Cloud Services
1 221 (41.31%) Azure
2 109 (20.37%) AWS
3 89 (16.64%) Microsoft 365
4 39 (7.29%) Power Platform
5 35 (6.54%) SaaS
6 30 (5.61%) Azure DevOps
7 25 (4.67%) Amazon Bedrock
7 25 (4.67%) Vertex AI
8 19 (3.55%) GCP
9 17 (3.18%) Serverless
10 16 (2.99%) Dynamics 365
11 15 (2.80%) GitHub
12 12 (2.24%) Amazon SQS
12 12 (2.24%) Entra ID
13 11 (2.06%) IaaS
14 10 (1.87%) ChatGPT
14 10 (1.87%) GitHub Copilot
14 10 (1.87%) PaaS
15 8 (1.50%) Azure Data Factory
15 8 (1.50%) Azure Synapse Analytics
Communications & Networking
1 79 (14.77%) DNS
2 78 (14.58%) DHCP
3 16 (2.99%) Firewall
4 9 (1.68%) VPN
5 7 (1.31%) WAN
6 5 (0.93%) Modbus
6 5 (0.93%) SD-WAN
7 4 (0.75%) LAN
7 4 (0.75%) TCP/IP
8 3 (0.56%) Intranet
8 3 (0.56%) Wi-Fi
9 2 (0.37%) Extranet
9 2 (0.37%) Network Security
9 2 (0.37%) PSTN
9 2 (0.37%) SAN
9 2 (0.37%) SMTP
9 2 (0.37%) Unified Communications
9 2 (0.37%) VoIP
10 1 (0.19%) BGP
10 1 (0.19%) ISDN
Database & Business Intelligence
1 116 (21.68%) SQL Server
2 74 (13.83%) Amazon RDS
3 54 (10.09%) MySQL
4 35 (6.54%) SQL Server Integration Services
5 27 (5.05%) Power BI
6 24 (4.49%) NoSQL
7 13 (2.43%) Relational Database
8 12 (2.24%) PostgreSQL
8 12 (2.24%) SQL Server Reporting Services
9 11 (2.06%) Data Warehouse
10 10 (1.87%) MongoDB
11 9 (1.68%) Big Data
12 8 (1.50%) Amazon Redshift
12 8 (1.50%) Metadata
13 7 (1.31%) Hadoop
14 6 (1.12%) Geospatial Data
15 5 (0.93%) Apache Hive
15 5 (0.93%) BigQuery
15 5 (0.93%) Data Lake
15 5 (0.93%) Oracle Database
Development Applications
1 21 (3.93%) Octopus Deploy
2 18 (3.36%) Git
2 18 (3.36%) TeamCity
3 11 (2.06%) ERwin
4 9 (1.68%) JIRA
5 8 (1.50%) Jenkins
6 6 (1.12%) Gradle
6 6 (1.12%) Maven
7 3 (0.56%) GitLab
8 2 (0.37%) Artifactory
8 2 (0.37%) JUnit
8 2 (0.37%) PHPUnit
8 2 (0.37%) SQL Server Management Studio (SSMS)
8 2 (0.37%) Subversion
8 2 (0.37%) Visual Studio Code
9 1 (0.19%) Cucumber
9 1 (0.19%) JMeter
9 1 (0.19%) Mockito
9 1 (0.19%) Synon
9 1 (0.19%) Visual Studio
General
1 225 (42.06%) Social Skills
2 155 (28.97%) Analytical Skills
3 128 (23.93%) Finance
4 25 (4.67%) Banking
5 24 (4.49%) Public Sector
6 22 (4.11%) Inclusion and Diversity
6 22 (4.11%) Law
7 19 (3.55%) Legal
8 16 (2.99%) Retail
9 13 (2.43%) Manufacturing
9 13 (2.43%) Marketing
10 10 (1.87%) Investment Banking
11 8 (1.50%) Documentation Skills
12 7 (1.31%) Influencing Skills
13 6 (1.12%) Back Office
14 4 (0.75%) Local Government
14 4 (0.75%) Presentation Skills
15 3 (0.56%) Aerospace
15 3 (0.56%) Agriculture
15 3 (0.56%) Billing
Job Titles
1 93 (17.38%) Developer
2 73 (13.64%) Consultant
2 73 (13.64%) Senior
2 73 (13.64%) Systems Engineer
3 68 (12.71%) Architect
4 59 (11.03%) Lead
5 27 (5.05%) Analyst
6 26 (4.86%) Senior Consultant
7 25 (4.67%) Data Engineer
7 25 (4.67%) Gen AI Consultant
8 21 (3.93%) Solutions Architect
9 20 (3.74%) DevOps Engineer
9 20 (3.74%) Senior Developer
10 19 (3.55%) Data Architect
10 19 (3.55%) Lead Developer
11 17 (3.18%) .NET Developer
12 16 (2.99%) Enterprise Architect
12 16 (2.99%) Full-Stack Developer
13 14 (2.62%) Java Developer
13 14 (2.62%) Software Developer
Libraries, Frameworks & Software Standards
1 56 (10.47%) .NET
2 30 (5.61%) REST
3 26 (4.86%) LangChain
4 25 (4.67%) RESTful
5 21 (3.93%) React
5 21 (3.93%) Spring
6 18 (3.36%) Kafka
7 16 (2.99%) Spring Boot
8 15 (2.80%) JPA
9 13 (2.43%) CSS
10 12 (2.24%) AngularJS
10 12 (2.24%) HTML
10 12 (2.24%) Pandas
11 11 (2.06%) Hibernate
11 11 (2.06%) Laravel
12 10 (1.87%) PySpark
13 8 (1.50%) .NET Core
13 8 (1.50%) ASP.NET
13 8 (1.50%) Oracle Fusion
14 7 (1.31%) Web Services
Miscellaneous
1 52 (9.72%) Cloud Native
2 34 (6.36%) Data Structures
3 29 (5.42%) Hybrid Cloud
4 20 (3.74%) Data Centre
5 19 (3.55%) Virtual Team
6 16 (2.99%) Operational Technology
7 13 (2.43%) Management Information System
8 12 (2.24%) Distributed Architecture
9 11 (2.06%) Clustering
9 11 (2.06%) Driving Licence
10 10 (1.87%) Analytical Mindset
11 7 (1.31%) Greenfield Project
11 7 (1.31%) Legacy Applications
11 7 (1.31%) SCADA
12 6 (1.12%) Distributed Systems
12 6 (1.12%) Product Ownership
13 5 (0.93%) e-Learning
13 5 (0.93%) Enterprise Software
13 5 (0.93%) Onboarding
13 5 (0.93%) Reference Data
Operating Systems
1 93 (17.38%) Windows
2 86 (16.07%) Windows Server
3 80 (14.95%) Linux
4 79 (14.77%) Windows Server 2016
5 6 (1.12%) Unix
6 4 (0.75%) Windows 10
7 3 (0.56%) Windows Server 2019
8 2 (0.37%) Apple iOS
8 2 (0.37%) VMS
9 1 (0.19%) CentOS
9 1 (0.19%) Red Hat Enterprise Linux
9 1 (0.19%) Solaris
9 1 (0.19%) Ubuntu
9 1 (0.19%) Windows Server 2003
9 1 (0.19%) Windows Server 2012
9 1 (0.19%) zOS
Processes & Methodologies
1 197 (36.82%) Migration
2 147 (27.48%) Problem-Solving
3 117 (21.87%) Agile
4 87 (16.26%) AI
5 83 (15.51%) CI/CD
6 79 (14.77%) Customer Service
7 77 (14.39%) DevOps
8 75 (14.02%) Customer Experience
9 74 (13.83%) Stakeholder Management
10 72 (13.46%) Email Filtering
10 72 (13.46%) Kalman Filter
10 72 (13.46%) Vulnerability Remediation
10 72 (13.46%) Vulnerability Scanning
10 72 (13.46%) Web Filtering
11 66 (12.34%) Roadmaps
12 63 (11.78%) Continuous Improvement
13 52 (9.72%) SDLC
14 51 (9.53%) Microservices
15 48 (8.97%) OOP
16 47 (8.79%) Stakeholder Engagement
Programming Languages
1 95 (17.76%) SQL
2 46 (8.60%) Python
3 44 (8.22%) Delphi
3 44 (8.22%) Pascal
4 42 (7.85%) C#
5 36 (6.73%) Java
6 30 (5.61%) PowerShell
7 26 (4.86%) JavaScript
8 19 (3.55%) PHP
9 17 (3.18%) TypeScript
10 11 (2.06%) PL/SQL
11 5 (0.93%) VB.NET
12 4 (0.75%) R
12 4 (0.75%) Shell Script
12 4 (0.75%) T-SQL
13 3 (0.56%) Data Analysis Expressions
13 3 (0.56%) VBA
14 2 (0.37%) Julia
14 2 (0.37%) Scala
14 2 (0.37%) VB
Qualifications
1 88 (16.45%) Security Cleared
2 82 (15.33%) SC Cleared
3 60 (11.21%) Degree
4 32 (5.98%) Computer Science Degree
5 10 (1.87%) Azure Certification
6 8 (1.50%) ACCA
7 6 (1.12%) CIMA
8 5 (0.93%) DV Cleared
8 5 (0.93%) TOGAF Certification
9 3 (0.56%) AWS Certification
9 3 (0.56%) AWS Certified Solutions Architect
9 3 (0.56%) Cisco Certification
9 3 (0.56%) DBS Check
10 2 (0.37%) CCNP
10 2 (0.37%) CISA
10 2 (0.37%) Microsoft Certification
11 1 (0.19%) CISM
11 1 (0.19%) GIAC
11 1 (0.19%) MBA
11 1 (0.19%) MCITP
Quality Assurance & Compliance
1 74 (13.83%) Cyber Essentials
2 72 (13.46%) PCI DSS
3 60 (11.21%) QA
4 16 (2.99%) GDPR
5 13 (2.43%) Data Quality
6 11 (2.06%) ISO/IEC 27001
7 5 (0.93%) Accessibility
7 5 (0.93%) IEC 61508
8 4 (0.75%) PMO
9 3 (0.56%) IEC 61131
9 3 (0.56%) NCSC
10 2 (0.37%) Cyber Essentials PLUS
10 2 (0.37%) ISO 20022
11 1 (0.19%) COBIT
11 1 (0.19%) NIST
11 1 (0.19%) Sarbanes-Oxley
11 1 (0.19%) SLA
System Software
1 86 (16.07%) Active Directory
2 81 (15.14%) Hyper-V
3 72 (13.46%) Terminal Server
4 37 (6.92%) Docker
5 16 (2.99%) VMware Infrastructure
6 5 (0.93%) HDFS
6 5 (0.93%) VMware ESXi
7 4 (0.75%) vSphere
8 2 (0.37%) Virtual Desktop
9 1 (0.19%) BitLocker
9 1 (0.19%) Microsoft App-V
9 1 (0.19%) Terminal Services
9 1 (0.19%) Virtual Machines
9 1 (0.19%) Virtual Servers
9 1 (0.19%) VMware Server
Systems Management
1 35 (6.54%) Terraform
2 29 (5.42%) Kubernetes
3 7 (1.31%) Microsoft Intune
4 3 (0.56%) Ansible
4 3 (0.56%) Grafana
4 3 (0.56%) Prometheus
5 2 (0.37%) CSIRT
5 2 (0.37%) Plesk
5 2 (0.37%) vCenter Server
6 1 (0.19%) Backup Exec
6 1 (0.19%) Cisco CUCM
6 1 (0.19%) FortiGate
6 1 (0.19%) Jamf Pro
6 1 (0.19%) Kibana
6 1 (0.19%) Nagios
6 1 (0.19%) Puppet
6 1 (0.19%) SCOM
6 1 (0.19%) vMotion
6 1 (0.19%) VxRail
6 1 (0.19%) ZABBIX
Vendors
1 168 (31.40%) Microsoft
2 93 (17.38%) VMware
3 77 (14.39%) Splunk
4 75 (14.02%) SolarWinds
5 74 (13.83%) Veeam
6 72 (13.46%) Brocade
6 72 (13.46%) Nimble Storage
6 72 (13.46%) Tanium
7 66 (12.34%) Oracle
8 31 (5.79%) Google
9 18 (3.36%) Databricks
10 17 (3.18%) Salesforce
10 17 (3.18%) SAP
11 9 (1.68%) Cisco
12 6 (1.12%) Citrix
12 6 (1.12%) Workday
13 5 (0.93%) Cloudera
13 5 (0.93%) IBM
13 5 (0.93%) Rockwell
13 5 (0.93%) ServiceNow