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

6 months to
23 Nov 2025
Same period 2024 Same period 2023
Rank 236 421 407
Rank change year-on-year +185 -14 -18
Permanent jobs citing Legacy Systems 566 374 328
As % of all permanent jobs in the UK 1.07% 0.54% 0.63%
As % of the Miscellaneous category 2.96% 1.64% 1.64%
Number of salaries quoted 312 218 293
10th Percentile £45,000 £38,750 £39,887
25th Percentile £52,500 £40,000 £47,500
Median annual salary (50th Percentile) £65,000 £52,500 £65,000
Median % change year-on-year +23.81% -19.23% -10.05%
75th Percentile £82,625 £75,938 £78,750
90th Percentile £97,375 £120,000 £97,139
UK excluding London median annual salary £62,500 £45,000 £57,500
% change year-on-year +38.89% -21.74% -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 19,113 22,828 20,005
As % of all permanent jobs advertised in the UK 35.97% 33.21% 38.47%
Number of salaries quoted 10,680 11,247 14,942
10th Percentile £27,750 £33,500 £33,750
25th Percentile £36,250 £45,000 £45,000
Median annual salary (50th Percentile) £54,000 £60,000 £62,500
Median % change year-on-year -10.00% -4.00% -
75th Percentile £77,500 £82,500 £83,750
90th Percentile £100,000 £110,000 £106,289
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 November 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 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 +187 497 £66,150 +26.00% 395
UK excluding London +148 322 £62,500 +38.89% 259
London +136 198 £77,500 +24.00% 171
Work from Home +69 136 £61,675 +23.35% 242
South West +110 104 £62,500 -7.41% 29
Midlands +76 71 £65,000 +44.44% 41
West Midlands +63 53 £65,000 +36.84% 22
South East +40 51 £62,500 +38.89% 79
North of England +21 42 £70,000 +60.00% 67
North West +48 30 £70,000 +60.00% 44
Wales +30 30 £55,000 +46.67% 8
East Midlands +40 18 £53,850 +23.09% 19
Scotland +24 13 £47,500 +6.74% 19
East of England +26 12 £62,500 -3.85% 16
Yorkshire +7 9 £65,000 -21.21% 14
North East +8 3 £72,500 +145.76% 9
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 95 (16.78%) Microsoft Exchange
2 19 (3.36%) Apache Airflow
3 18 (3.18%) Apache
4 11 (1.94%) Apache Spark
5 10 (1.77%) SharePoint
6 8 (1.41%) Confluence
7 5 (0.88%) WinCC
8 4 (0.71%) Apache Synapse
8 4 (0.71%) CMS
8 4 (0.71%) IIS
9 2 (0.35%) Appian
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%) Adobe Experience Manager
10 1 (0.18%) Exchange Server 2003
10 1 (0.18%) Jupyter
10 1 (0.18%) Kentico
Applications
1 10 (1.77%) Microsoft Excel
1 10 (1.77%) Microsoft Office
2 5 (0.88%) Microsoft PowerPoint
3 3 (0.53%) Windchill
4 2 (0.35%) Oracle Smart View
5 1 (0.18%) Adobe Illustrator
5 1 (0.18%) Adobe XD
5 1 (0.18%) Microsoft Project
Business Applications
1 12 (2.12%) Dynamics CRM
2 7 (1.24%) Dynamics GP
3 4 (0.71%) NetSuite
3 4 (0.71%) SAP FI
4 3 (0.53%) Oracle Procure-to-Pay
4 3 (0.53%) SAP S/4HANA
5 2 (0.35%) Dynamics NAV
5 2 (0.35%) Oracle Cash Management
5 2 (0.35%) Oracle Payables
6 1 (0.18%) Aladdin
6 1 (0.18%) Primavera
6 1 (0.18%) Raiser’s Edge
6 1 (0.18%) SAP MDG
6 1 (0.18%) Shopify
Cloud Services
1 245 (43.29%) Azure
2 114 (20.14%) AWS
3 106 (18.73%) Microsoft 365
4 37 (6.54%) Power Platform
5 33 (5.83%) Azure DevOps
6 32 (5.65%) SaaS
7 25 (4.42%) Amazon Bedrock
7 25 (4.42%) Vertex AI
8 23 (4.06%) GitHub
9 20 (3.53%) GCP
10 17 (3.00%) Serverless
11 16 (2.83%) Dynamics 365
12 14 (2.47%) Amazon SQS
13 12 (2.12%) Entra ID
14 11 (1.94%) Azure Data Factory
15 10 (1.77%) Amazon CloudWatch
15 10 (1.77%) ChatGPT
15 10 (1.77%) GitHub Copilot
16 9 (1.59%) Azure Synapse Analytics
16 9 (1.59%) OpenShift
Communications & Networking
1 94 (16.61%) DNS
2 93 (16.43%) DHCP
3 17 (3.00%) Firewall
4 8 (1.41%) VPN
5 7 (1.24%) WAN
6 6 (1.06%) Modbus
7 5 (0.88%) SD-WAN
8 4 (0.71%) LAN
8 4 (0.71%) TCP/IP
9 3 (0.53%) Intranet
9 3 (0.53%) Wi-Fi
10 2 (0.35%) Extranet
10 2 (0.35%) Network Security
10 2 (0.35%) PSTN
10 2 (0.35%) SAN
10 2 (0.35%) Unified Communications
10 2 (0.35%) VoIP
11 1 (0.18%) BGP
11 1 (0.18%) ISDN
11 1 (0.18%) SMTP
Database & Business Intelligence
1 131 (23.14%) SQL Server
2 89 (15.72%) Amazon RDS
3 52 (9.19%) MySQL
4 39 (6.89%) SQL Server Integration Services
5 24 (4.24%) Power BI
6 23 (4.06%) NoSQL
7 20 (3.53%) PostgreSQL
8 15 (2.65%) Relational Database
8 15 (2.65%) SQL Server Reporting Services
9 10 (1.77%) Data Warehouse
10 9 (1.59%) Metadata
10 9 (1.59%) MongoDB
11 8 (1.41%) Amazon Redshift
11 8 (1.41%) Big Data
11 8 (1.41%) Geospatial Data
12 7 (1.24%) BigQuery
13 6 (1.06%) Hadoop
13 6 (1.06%) Oracle Database
14 5 (0.88%) Metadata Repository
15 4 (0.71%) Apache Hive
Development Applications
1 23 (4.06%) Git
2 21 (3.71%) Octopus Deploy
3 18 (3.18%) TeamCity
4 16 (2.83%) Jenkins
5 12 (2.12%) GitLab
6 11 (1.94%) ERwin
7 10 (1.77%) JIRA
7 10 (1.77%) JUnit
8 9 (1.59%) Cucumber
9 8 (1.41%) Selenium
10 5 (0.88%) Gradle
10 5 (0.88%) Maven
11 2 (0.35%) Artifactory
11 2 (0.35%) MLflow
11 2 (0.35%) SonarQube
11 2 (0.35%) SQL Server Management Studio (SSMS)
11 2 (0.35%) Synon
11 2 (0.35%) Visual Studio Code
12 1 (0.18%) JMeter
12 1 (0.18%) Vite
General
1 258 (45.58%) Social Skills
2 167 (29.51%) Analytical Skills
3 133 (23.50%) Finance
4 25 (4.42%) Banking
4 25 (4.42%) Public Sector
5 22 (3.89%) Law
6 21 (3.71%) Legal
7 20 (3.53%) Inclusion and Diversity
8 17 (3.00%) Retail
9 12 (2.12%) Marketing
10 11 (1.94%) Manufacturing
11 9 (1.59%) Investment Banking
12 8 (1.41%) Documentation Skills
13 7 (1.24%) Influencing Skills
14 5 (0.88%) Back Office
15 4 (0.71%) Presentation Skills
16 3 (0.53%) Aerospace
16 3 (0.53%) Agriculture
16 3 (0.53%) Billing
16 3 (0.53%) Organisational Skills
Job Titles
1 99 (17.49%) Developer
2 88 (15.55%) Systems Engineer
3 82 (14.49%) Senior
4 72 (12.72%) Consultant
5 69 (12.19%) Architect
6 56 (9.89%) Lead
7 29 (5.12%) Analyst
8 27 (4.77%) Senior Developer
9 25 (4.42%) Gen AI Consultant
9 25 (4.42%) Senior Consultant
10 23 (4.06%) Data Engineer
11 22 (3.89%) Software Developer
12 21 (3.71%) DevOps Engineer
13 20 (3.53%) Enterprise Architect
13 20 (3.53%) Solutions Architect
14 19 (3.36%) Data Architect
15 17 (3.00%) .NET Developer
15 17 (3.00%) Lead Developer
16 14 (2.47%) Lead Architect
17 13 (2.30%) Full-Stack Developer
Libraries, Frameworks & Software Standards
1 60 (10.60%) .NET
2 31 (5.48%) REST
3 30 (5.30%) Spring
4 27 (4.77%) RESTful
5 26 (4.59%) LangChain
5 26 (4.59%) Spring Boot
6 23 (4.06%) React
7 21 (3.71%) Kafka
8 16 (2.83%) JPA
8 16 (2.83%) Pandas
9 13 (2.30%) AngularJS
9 13 (2.30%) Django
9 13 (2.30%) Hibernate
10 12 (2.12%) CSS
11 11 (1.94%) HTML
11 11 (1.94%) Laravel
12 10 (1.77%) Flask
12 10 (1.77%) pytest
13 9 (1.59%) PySpark
13 9 (1.59%) Web Services
Miscellaneous
1 60 (10.60%) Cloud Native
2 32 (5.65%) Data Structures
3 25 (4.42%) Hybrid Cloud
4 21 (3.71%) Data Centre
5 19 (3.36%) Virtual Team
6 16 (2.83%) Operational Technology
7 13 (2.30%) Driving Licence
8 12 (2.12%) Distributed Architecture
9 11 (1.94%) Legacy Applications
9 11 (1.94%) Management Information System
10 10 (1.77%) Analytical Mindset
11 9 (1.59%) Clustering
12 8 (1.41%) Low-Code
12 8 (1.41%) SCADA
13 6 (1.06%) Enterprise Software
13 6 (1.06%) Greenfield Project
13 6 (1.06%) Product Ownership
13 6 (1.06%) Self-Motivation
14 5 (0.88%) Cyber Threat
14 5 (0.88%) Reference Data
Operating Systems
1 107 (18.90%) Windows
2 99 (17.49%) Windows Server
3 96 (16.96%) Linux
4 95 (16.78%) Windows Server 2016
5 5 (0.88%) Unix
6 4 (0.71%) VMS
7 3 (0.53%) Windows Server 2019
8 2 (0.35%) Apple iOS
8 2 (0.35%) CentOS
8 2 (0.35%) Red Hat Enterprise Linux
8 2 (0.35%) Ubuntu
8 2 (0.35%) Windows 10
9 1 (0.18%) Solaris
9 1 (0.18%) Windows Server 2003
9 1 (0.18%) Windows Server 2012
Processes & Methodologies
1 226 (39.93%) Migration
2 169 (29.86%) Problem-Solving
3 119 (21.02%) Agile
4 100 (17.67%) CI/CD
5 95 (16.78%) Customer Service
6 91 (16.08%) Customer Experience
7 90 (15.90%) DevOps
8 88 (15.55%) AI
8 88 (15.55%) Email Filtering
8 88 (15.55%) Kalman Filter
8 88 (15.55%) Vulnerability Remediation
8 88 (15.55%) Vulnerability Scanning
8 88 (15.55%) Web Filtering
9 75 (13.25%) Stakeholder Management
10 70 (12.37%) Continuous Improvement
11 67 (11.84%) Roadmaps
12 59 (10.42%) Microservices
13 52 (9.19%) SDLC
14 48 (8.48%) Stakeholder Engagement
15 47 (8.30%) OO
Programming Languages
1 101 (17.84%) SQL
2 53 (9.36%) Delphi
2 53 (9.36%) Python
3 44 (7.77%) Pascal
4 42 (7.42%) Java
5 41 (7.24%) C#
6 30 (5.30%) PowerShell
7 29 (5.12%) JavaScript
8 19 (3.36%) PHP
9 17 (3.00%) TypeScript
10 8 (1.41%) PL/SQL
11 6 (1.06%) T-SQL
12 5 (0.88%) VB.NET
13 4 (0.71%) Bicep
13 4 (0.71%) Shell Script
14 3 (0.53%) Data Analysis Expressions
14 3 (0.53%) VB
15 2 (0.35%) R
15 2 (0.35%) RPG
15 2 (0.35%) Scala
Qualifications
1 104 (18.37%) Security Cleared
2 101 (17.84%) SC Cleared
3 59 (10.42%) Degree
4 32 (5.65%) Computer Science Degree
5 11 (1.94%) Azure Certification
6 8 (1.41%) ACCA
7 6 (1.06%) CIMA
8 5 (0.88%) TOGAF Certification
9 3 (0.53%) AWS Certification
9 3 (0.53%) AWS Certified Solutions Architect
9 3 (0.53%) Cisco Certification
9 3 (0.53%) DBS Check
9 3 (0.53%) Microsoft Certification
10 2 (0.35%) CCNP
10 2 (0.35%) CISA
10 2 (0.35%) DV Cleared
10 2 (0.35%) HND
11 1 (0.18%) CCNA
11 1 (0.18%) CISSP
11 1 (0.18%) MCSA
Quality Assurance & Compliance
1 90 (15.90%) Cyber Essentials
2 88 (15.55%) PCI DSS
3 60 (10.60%) QA
4 18 (3.18%) Data Quality
5 15 (2.65%) GDPR
6 13 (2.30%) ISO/IEC 27001
7 5 (0.88%) Accessibility
7 5 (0.88%) IEC 61508
8 4 (0.71%) PMO
9 3 (0.53%) COBIT
9 3 (0.53%) IEC 61131
10 2 (0.35%) Cyber Essentials PLUS
10 2 (0.35%) ISO 20022
10 2 (0.35%) NCSC
10 2 (0.35%) NIST
System Software
1 99 (17.49%) Active Directory
2 96 (16.96%) Hyper-V
3 88 (15.55%) Terminal Server
4 47 (8.30%) Docker
5 13 (2.30%) VMware Infrastructure
6 4 (0.71%) HDFS
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 44 (7.77%) Kubernetes
2 38 (6.71%) Terraform
3 12 (2.12%) Grafana
4 7 (1.24%) Microsoft Intune
5 4 (0.71%) Prometheus
6 2 (0.35%) Ansible
6 2 (0.35%) CSIRT
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%) Kibana
7 1 (0.18%) SCOM
7 1 (0.18%) vCenter Server
7 1 (0.18%) VxRail
7 1 (0.18%) ZABBIX
Vendors
1 186 (32.86%) Microsoft
2 106 (18.73%) VMware
3 92 (16.25%) Splunk
4 91 (16.08%) SolarWinds
5 90 (15.90%) Veeam
6 88 (15.55%) Brocade
6 88 (15.55%) Nimble Storage
6 88 (15.55%) Tanium
7 71 (12.54%) Oracle
8 30 (5.30%) Google
9 16 (2.83%) Databricks
9 16 (2.83%) SAP
10 14 (2.47%) Salesforce
11 7 (1.24%) Cisco
12 6 (1.06%) Workday
13 5 (0.88%) Citrix
13 5 (0.88%) HubSpot
13 5 (0.88%) OpenAI
13 5 (0.88%) Rockwell
13 5 (0.88%) Siemens