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

6 months to
17 Dec 2025
Same period 2024 Same period 2023
Rank 242 380 427
Rank change year-on-year +138 +47 -44
Permanent jobs citing Legacy Systems 551 390 301
As % of all permanent jobs in the UK 0.94% 0.68% 0.62%
As % of the Miscellaneous category 2.63% 1.87% 1.62%
Number of salaries quoted 296 222 257
10th Percentile £45,000 £38,750 £39,852
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 £83,750 £68,750 £85,750
90th Percentile £98,375 £115,000 £96,839
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 20,934 20,845 18,588
As % of all permanent jobs advertised in the UK 35.64% 36.36% 38.21%
Number of salaries quoted 10,587 10,259 13,833
10th Percentile £27,750 £33,750 £32,524
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% -3.25%
75th Percentile £77,500 £82,875 £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 17 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 17 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 +138 484 £67,500 +28.57% 169
UK excluding London +86 310 £64,350 +43.00% 166
London +127 193 £75,000 +25.00% 49
Work from Home +75 147 £62,500 +19.05% 92
South West +92 106 £63,425 -6.04% 17
Midlands +30 66 £65,000 +52.94% 31
South East +19 50 £65,000 +44.44% 50
West Midlands +20 45 £65,000 +52.94% 10
North of England +2 36 £70,000 +64.71% 28
Wales +22 31 £55,000 +29.41% 9
North West +23 24 £70,000 +64.71% 10
East Midlands +14 21 £55,200 +22.67% 21
East of England +23 13 £62,500 -3.85% 20
Scotland +5 9 £47,500 +6.74% 15
Yorkshire -10 9 £65,000 +6.56% 9
North East -3 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 (17.24%) Microsoft Exchange
2 16 (2.90%) Apache
2 16 (2.90%) Apache Airflow
3 10 (1.81%) SharePoint
4 8 (1.45%) Confluence
5 6 (1.09%) IIS
6 5 (0.91%) Apache Spark
6 5 (0.91%) Appian
6 5 (0.91%) WinCC
7 4 (0.73%) Apache Synapse
7 4 (0.73%) CMS
8 2 (0.36%) ColdFusion
8 2 (0.36%) FactoryTalk
8 2 (0.36%) JBoss
8 2 (0.36%) OpenEdge
8 2 (0.36%) SAS
9 1 (0.18%) Exchange Server 2003
9 1 (0.18%) Jupyter
9 1 (0.18%) Kentico
9 1 (0.18%) nginx
Applications
1 12 (2.18%) Microsoft Excel
1 12 (2.18%) Microsoft Office
2 3 (0.54%) Microsoft PowerPoint
2 3 (0.54%) MS Visio
2 3 (0.54%) Windchill
3 2 (0.36%) Oracle Smart View
4 1 (0.18%) Adobe Illustrator
4 1 (0.18%) Adobe XD
4 1 (0.18%) Microsoft Project
Business Applications
1 14 (2.54%) Dynamics CRM
2 7 (1.27%) Dynamics GP
3 4 (0.73%) SAP FI
4 3 (0.54%) NetSuite
4 3 (0.54%) Oracle Applications
4 3 (0.54%) Oracle Procure-to-Pay
5 2 (0.36%) Dynamics NAV
5 2 (0.36%) Oracle Cash Management
5 2 (0.36%) Oracle Payables
5 2 (0.36%) SAP S/4HANA
6 1 (0.18%) Aladdin
6 1 (0.18%) Primavera
6 1 (0.18%) Raiser’s Edge
6 1 (0.18%) SAP MDG
Cloud Services
1 246 (44.65%) Azure
2 107 (19.42%) Microsoft 365
3 103 (18.69%) AWS
4 35 (6.35%) Azure DevOps
4 35 (6.35%) Power Platform
5 29 (5.26%) SaaS
6 26 (4.72%) Amazon Bedrock
6 26 (4.72%) Vertex AI
7 25 (4.54%) GitHub
8 20 (3.63%) GCP
9 13 (2.36%) Entra ID
9 13 (2.36%) Serverless
10 12 (2.18%) Amazon SQS
10 12 (2.18%) Dynamics 365
11 11 (2.00%) Azure Data Factory
12 10 (1.81%) Amazon CloudWatch
12 10 (1.81%) ChatGPT
12 10 (1.81%) GitHub Copilot
13 9 (1.63%) Azure Synapse Analytics
14 8 (1.45%) OpenShift
Communications & Networking
1 94 (17.06%) DNS
2 93 (16.88%) DHCP
3 18 (3.27%) Firewall
4 7 (1.27%) Modbus
5 6 (1.09%) VPN
5 6 (1.09%) WAN
6 4 (0.73%) LAN
6 4 (0.73%) SD-WAN
6 4 (0.73%) TCP/IP
7 3 (0.54%) Intranet
7 3 (0.54%) PuTTY
7 3 (0.54%) Wi-Fi
8 2 (0.36%) DMZ
8 2 (0.36%) Extranet
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%) ISDN
Database & Business Intelligence
1 133 (24.14%) SQL Server
2 89 (16.15%) Amazon RDS
3 53 (9.62%) MySQL
4 40 (7.26%) SQL Server Integration Services
5 27 (4.90%) Power BI
6 20 (3.63%) NoSQL
7 19 (3.45%) PostgreSQL
8 15 (2.72%) SQL Server Reporting Services
9 13 (2.36%) Relational Database
10 12 (2.18%) Metadata
11 10 (1.81%) Data Warehouse
12 7 (1.27%) Amazon Redshift
12 7 (1.27%) BigQuery
12 7 (1.27%) Geospatial Data
12 7 (1.27%) MongoDB
13 6 (1.09%) Azure SQL Database
13 6 (1.09%) Data Lake
13 6 (1.09%) Oracle Database
14 5 (0.91%) Metadata Repository
14 5 (0.91%) Pinecone
Development Applications
1 23 (4.17%) Git
1 23 (4.17%) Octopus Deploy
2 20 (3.63%) TeamCity
3 19 (3.45%) Jenkins
4 11 (2.00%) ERwin
4 11 (2.00%) GitLab
5 10 (1.81%) JIRA
5 10 (1.81%) JUnit
6 9 (1.63%) Cucumber
7 8 (1.45%) Selenium
8 5 (0.91%) MLflow
9 4 (0.73%) Maven
10 3 (0.54%) 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%) Gradle
12 1 (0.18%) JMeter
12 1 (0.18%) Mockito
General
1 264 (47.91%) Social Skills
2 159 (28.86%) Analytical Skills
3 123 (22.32%) Finance
4 25 (4.54%) Banking
5 24 (4.36%) Public Sector
6 19 (3.45%) Legal
7 18 (3.27%) Inclusion and Diversity
7 18 (3.27%) Retail
8 15 (2.72%) Law
9 11 (2.00%) Manufacturing
10 9 (1.63%) Investment Banking
11 7 (1.27%) Influencing Skills
12 5 (0.91%) Organisational Skills
13 4 (0.73%) Documentation Skills
14 3 (0.54%) Aerospace
14 3 (0.54%) Agriculture
14 3 (0.54%) Back Office
14 3 (0.54%) Billing
15 2 (0.36%) Health Technology
15 2 (0.36%) Pharmaceutical
Job Titles
1 88 (15.97%) Systems Engineer
2 86 (15.61%) Senior
3 84 (15.25%) Developer
4 73 (13.25%) Consultant
5 69 (12.52%) Architect
6 49 (8.89%) Lead
7 31 (5.63%) Analyst
8 26 (4.72%) Gen AI Consultant
8 26 (4.72%) Senior Consultant
9 25 (4.54%) DevOps Engineer
9 25 (4.54%) Senior Developer
10 24 (4.36%) Enterprise Architect
11 21 (3.81%) Data Architect
11 21 (3.81%) Data Engineer
12 17 (3.09%) Software Developer
13 16 (2.90%) .NET Developer
13 16 (2.90%) Solutions Architect
14 14 (2.54%) Lead Architect
14 14 (2.54%) Software Engineer
15 13 (2.36%) Business Analyst
Libraries, Frameworks & Software Standards
1 63 (11.43%) .NET
2 33 (5.99%) REST
3 27 (4.90%) LangChain
3 27 (4.90%) RESTful
4 25 (4.54%) React
5 23 (4.17%) Spring
5 23 (4.17%) Spring Boot
6 20 (3.63%) Kafka
7 17 (3.09%) Pandas
8 14 (2.54%) Django
9 13 (2.36%) AngularJS
9 13 (2.36%) Flask
9 13 (2.36%) pytest
9 13 (2.36%) Web Services
10 12 (2.18%) CSS
11 11 (2.00%) Hibernate
11 11 (2.00%) HTML
12 10 (1.81%) .NET Core
12 10 (1.81%) JPA
12 10 (1.81%) OAuth
Miscellaneous
1 60 (10.89%) Cloud Native
2 32 (5.81%) Data Structures
3 25 (4.54%) Hybrid Cloud
4 21 (3.81%) Virtual Team
5 19 (3.45%) Data Centre
6 14 (2.54%) Driving Licence
6 14 (2.54%) Management Information System
7 12 (2.18%) Operational Technology
8 11 (2.00%) Legacy Applications
9 10 (1.81%) Analytical Mindset
9 10 (1.81%) Distributed Architecture
10 8 (1.45%) Enterprise Software
10 8 (1.45%) Low-Code
10 8 (1.45%) SCADA
11 7 (1.27%) Clustering
12 5 (0.91%) Greenfield Project
12 5 (0.91%) Product Ownership
12 5 (0.91%) Reference Data
13 4 (0.73%) Cyber Threat
13 4 (0.73%) NHS
Operating Systems
1 108 (19.60%) Windows
2 100 (18.15%) Linux
3 99 (17.97%) Windows Server
4 95 (17.24%) Windows Server 2016
5 5 (0.91%) VMS
6 3 (0.54%) 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
1 235 (42.65%) Migration
2 171 (31.03%) Problem-Solving
3 110 (19.96%) Agile
4 95 (17.24%) Customer Service
5 94 (17.06%) DevOps
6 91 (16.52%) CI/CD
6 91 (16.52%) Customer Experience
7 88 (15.97%) Email Filtering
7 88 (15.97%) Kalman Filter
7 88 (15.97%) Vulnerability Remediation
7 88 (15.97%) Vulnerability Scanning
7 88 (15.97%) Web Filtering
8 86 (15.61%) AI
9 76 (13.79%) Continuous Improvement
9 76 (13.79%) Stakeholder Management
10 67 (12.16%) Roadmaps
11 51 (9.26%) Microservices
12 50 (9.07%) OO
13 49 (8.89%) Analytics
14 47 (8.53%) Business Intelligence
Programming Languages
1 94 (17.06%) SQL
2 53 (9.62%) Delphi
3 52 (9.44%) Python
4 44 (7.99%) Pascal
5 39 (7.08%) C#
6 35 (6.35%) PowerShell
7 34 (6.17%) Java
8 30 (5.44%) JavaScript
9 18 (3.27%) TypeScript
10 14 (2.54%) PHP
11 6 (1.09%) T-SQL
12 5 (0.91%) Bicep
13 4 (0.73%) Bash
13 4 (0.73%) PL/SQL
13 4 (0.73%) Scala
13 4 (0.73%) VB.NET
14 3 (0.54%) Shell Script
14 3 (0.54%) VB
15 2 (0.36%) RPG
16 1 (0.18%) VBScript
Qualifications
1 103 (18.69%) Security Cleared
2 101 (18.33%) SC Cleared
3 62 (11.25%) Degree
4 35 (6.35%) Computer Science Degree
5 9 (1.63%) Azure Certification
6 5 (0.91%) ACCA
6 5 (0.91%) CIMA
6 5 (0.91%) TOGAF Certification
7 4 (0.73%) Microsoft Certification
8 3 (0.54%) 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
9 2 (0.36%) DV Cleared
10 1 (0.18%) APMG
10 1 (0.18%) ITIL Foundation Certificate
10 1 (0.18%) Master's Degree
10 1 (0.18%) SAP Certification
Quality Assurance & Compliance
1 90 (16.33%) Cyber Essentials
2 88 (15.97%) PCI DSS
3 56 (10.16%) QA
4 27 (4.90%) Data Quality
5 14 (2.54%) GDPR
6 8 (1.45%) ISO/IEC 27001
7 5 (0.91%) Accessibility
7 5 (0.91%) IEC 61508
8 4 (0.73%) COBIT
9 3 (0.54%) IEC 61131
9 3 (0.54%) NIST
9 3 (0.54%) PMO
10 2 (0.36%) Cyber Essentials PLUS
10 2 (0.36%) ISO 20022
System Software
1 99 (17.97%) Active Directory
2 96 (17.42%) Hyper-V
3 88 (15.97%) Terminal Server
4 48 (8.71%) Docker
5 13 (2.36%) VMware Infrastructure
6 4 (0.73%) 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 48 (8.71%) Kubernetes
2 45 (8.17%) Terraform
3 11 (2.00%) Grafana
4 7 (1.27%) Microsoft Intune
5 3 (0.54%) 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
1 182 (33.03%) Microsoft
2 106 (19.24%) VMware
3 92 (16.70%) Splunk
4 91 (16.52%) SolarWinds
4 91 (16.52%) Veeam
5 88 (15.97%) Brocade
5 88 (15.97%) Nimble Storage
5 88 (15.97%) Tanium
6 77 (13.97%) Oracle
7 30 (5.44%) Google
8 14 (2.54%) Salesforce
8 14 (2.54%) SAP
9 10 (1.81%) Databricks
10 8 (1.45%) OpenAI
11 7 (1.27%) Cisco
12 6 (1.09%) HubSpot
12 6 (1.09%) Workday
13 5 (0.91%) Automation Anywhere
13 5 (0.91%) MuleSoft
13 5 (0.91%) Rockwell