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

6 months to
6 Dec 2025
Same period 2024 Same period 2023
Rank 236 397 423
Rank change year-on-year +161 +26 -33
Permanent jobs citing Legacy Systems 555 388 320
As % of all permanent jobs in the UK 0.99% 0.62% 0.64%
As % of the Miscellaneous category 2.84% 1.76% 1.67%
Number of salaries quoted 298 223 283
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% -10.34%
75th Percentile £83,375 £75,625 £85,750
90th Percentile £97,650 £115,000 £97,290
UK excluding London median annual salary £64,350 £45,000 £55,000
% change year-on-year +43.00% -18.18% -12.00%

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 19,534 21,989 19,186
As % of all permanent jobs advertised in the UK 34.99% 35.01% 38.15%
Number of salaries quoted 10,575 10,841 14,445
10th Percentile £27,750 £33,750 £33,210
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 £82,750 £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 6 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 6 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 +155 489 £67,500 +28.57% 409
UK excluding London +121 316 £64,350 +43.00% 421
London +126 193 £77,500 +24.00% 58
Work from Home +63 137 £62,500 +19.05% 194
South West +106 103 £63,425 -6.04% 41
Midlands +42 71 £65,000 +52.94% 82
West Midlands +37 52 £65,000 +52.94% 37
South East +15 50 £65,000 +44.44% 114
North of England +20 39 £70,000 +64.71% 91
Wales +23 30 £55,000 +29.41% 17
North West +35 26 £70,000 +64.71% 48
East Midlands +24 19 £55,200 +22.67% 41
East of England +22 13 £62,500 -3.85% 47
Scotland +10 11 £47,500 +6.74% 28
Yorkshire 0 10 £65,000 +6.56% 38
North East +2 3 £72,500 +145.76% 5
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 (17.12%) Microsoft Exchange
2 18 (3.24%) Apache
2 18 (3.24%) Apache Airflow
3 10 (1.80%) SharePoint
4 8 (1.44%) Apache Spark
4 8 (1.44%) Confluence
5 5 (0.90%) Apache Synapse
5 5 (0.90%) IIS
5 5 (0.90%) WinCC
6 4 (0.72%) Appian
6 4 (0.72%) CMS
7 2 (0.36%) ColdFusion
7 2 (0.36%) FactoryTalk
7 2 (0.36%) JBoss
7 2 (0.36%) OpenEdge
7 2 (0.36%) SAS
8 1 (0.18%) Adobe Experience Manager
8 1 (0.18%) Exchange Server 2003
8 1 (0.18%) Kentico
8 1 (0.18%) nginx
Applications
1 12 (2.16%) Microsoft Excel
2 11 (1.98%) Microsoft Office
3 4 (0.72%) Microsoft PowerPoint
4 3 (0.54%) Windchill
5 2 (0.36%) MS Visio
5 2 (0.36%) Oracle Smart View
6 1 (0.18%) Adobe Illustrator
6 1 (0.18%) Adobe XD
6 1 (0.18%) Microsoft Project
Business Applications
1 13 (2.34%) Dynamics CRM
2 7 (1.26%) Dynamics GP
3 4 (0.72%) NetSuite
3 4 (0.72%) SAP FI
4 3 (0.54%) Oracle Procure-to-Pay
4 3 (0.54%) SAP S/4HANA
5 2 (0.36%) Dynamics NAV
5 2 (0.36%) Oracle Cash Management
5 2 (0.36%) Oracle Payables
6 1 (0.18%) Aladdin
6 1 (0.18%) Oracle Applications
6 1 (0.18%) Primavera
6 1 (0.18%) Raiser’s Edge
6 1 (0.18%) SAP MDG
Cloud Services
1 241 (43.42%) Azure
2 109 (19.64%) Microsoft 365
3 107 (19.28%) AWS
4 34 (6.13%) Power Platform
5 32 (5.77%) Azure DevOps
6 29 (5.23%) SaaS
7 25 (4.50%) Amazon Bedrock
7 25 (4.50%) Vertex AI
8 23 (4.14%) GitHub
9 19 (3.42%) GCP
10 13 (2.34%) Amazon SQS
10 13 (2.34%) Dynamics 365
10 13 (2.34%) Entra ID
10 13 (2.34%) Serverless
11 10 (1.80%) Amazon CloudWatch
11 10 (1.80%) ChatGPT
11 10 (1.80%) GitHub Copilot
12 9 (1.62%) Azure Data Factory
12 9 (1.62%) Azure Synapse Analytics
12 9 (1.62%) OpenShift
Communications & Networking
1 94 (16.94%) DNS
2 93 (16.76%) DHCP
3 18 (3.24%) Firewall
4 8 (1.44%) VPN
5 7 (1.26%) Modbus
6 6 (1.08%) WAN
7 4 (0.72%) LAN
7 4 (0.72%) SD-WAN
7 4 (0.72%) TCP/IP
8 3 (0.54%) Intranet
8 3 (0.54%) Network Security
8 3 (0.54%) Wi-Fi
9 2 (0.36%) DMZ
9 2 (0.36%) Extranet
9 2 (0.36%) PSTN
9 2 (0.36%) PuTTY
9 2 (0.36%) SAN
9 2 (0.36%) Unified Communications
9 2 (0.36%) VoIP
10 1 (0.18%) Fibre Channel
Database & Business Intelligence
1 131 (23.60%) SQL Server
2 89 (16.04%) Amazon RDS
3 52 (9.37%) MySQL
4 36 (6.49%) SQL Server Integration Services
5 26 (4.68%) Power BI
6 21 (3.78%) NoSQL
7 19 (3.42%) PostgreSQL
8 14 (2.52%) SQL Server Reporting Services
9 13 (2.34%) Relational Database
10 9 (1.62%) Data Warehouse
10 9 (1.62%) Metadata
11 8 (1.44%) Amazon Redshift
11 8 (1.44%) BigQuery
12 7 (1.26%) Big Data
12 7 (1.26%) Geospatial Data
12 7 (1.26%) MongoDB
13 6 (1.08%) Oracle Database
14 5 (0.90%) Data Mining
14 5 (0.90%) Metadata Repository
15 4 (0.72%) Data Lake
Development Applications
1 22 (3.96%) Git
2 21 (3.78%) Octopus Deploy
3 19 (3.42%) Jenkins
4 18 (3.24%) TeamCity
5 12 (2.16%) GitLab
6 11 (1.98%) ERwin
7 10 (1.80%) JIRA
7 10 (1.80%) JUnit
8 9 (1.62%) Cucumber
9 8 (1.44%) Selenium
10 5 (0.90%) Maven
11 4 (0.72%) MLflow
12 3 (0.54%) Gradle
13 2 (0.36%) Artifactory
13 2 (0.36%) SonarQube
13 2 (0.36%) Sonatype Nexus
13 2 (0.36%) Synon
13 2 (0.36%) Visual Studio Code
14 1 (0.18%) JMeter
14 1 (0.18%) Visual Studio
General
1 260 (46.85%) Social Skills
2 164 (29.55%) Analytical Skills
3 129 (23.24%) Finance
4 24 (4.32%) Banking
5 22 (3.96%) Legal
5 22 (3.96%) Public Sector
6 19 (3.42%) Inclusion and Diversity
7 18 (3.24%) Retail
8 16 (2.88%) Law
9 11 (1.98%) Manufacturing
10 9 (1.62%) Investment Banking
11 7 (1.26%) Influencing Skills
11 7 (1.26%) Marketing
12 5 (0.90%) Back Office
12 5 (0.90%) Organisational Skills
13 4 (0.72%) Documentation Skills
14 3 (0.54%) Aerospace
14 3 (0.54%) Agriculture
14 3 (0.54%) Billing
14 3 (0.54%) Presentation Skills
Job Titles
1 88 (15.86%) Developer
1 88 (15.86%) Systems Engineer
2 79 (14.23%) Senior
3 73 (13.15%) Architect
4 72 (12.97%) Consultant
5 53 (9.55%) Lead
6 29 (5.23%) Analyst
7 25 (4.50%) Gen AI Consultant
7 25 (4.50%) Senior Consultant
8 23 (4.14%) Senior Developer
9 22 (3.96%) DevOps Engineer
9 22 (3.96%) Enterprise Architect
10 20 (3.60%) Data Architect
11 19 (3.42%) Software Developer
11 19 (3.42%) Solutions Architect
12 17 (3.06%) .NET Developer
12 17 (3.06%) Data Engineer
13 14 (2.52%) Lead Architect
13 14 (2.52%) Lead Developer
14 12 (2.16%) Lead Data Architect
Libraries, Frameworks & Software Standards
1 61 (10.99%) .NET
2 33 (5.95%) REST
3 28 (5.05%) RESTful
4 27 (4.86%) Spring
5 26 (4.68%) LangChain
6 25 (4.50%) Spring Boot
7 22 (3.96%) Kafka
7 22 (3.96%) React
8 17 (3.06%) Pandas
9 13 (2.34%) Django
9 13 (2.34%) JPA
10 12 (2.16%) CSS
10 12 (2.16%) Flask
10 12 (2.16%) Hibernate
10 12 (2.16%) pytest
10 12 (2.16%) Web Services
11 11 (1.98%) AngularJS
11 11 (1.98%) HTML
12 10 (1.80%) Laravel
13 9 (1.62%) ASP.NET
Miscellaneous
1 62 (11.17%) Cloud Native
2 31 (5.59%) Data Structures
3 25 (4.50%) Hybrid Cloud
4 21 (3.78%) Data Centre
5 19 (3.42%) Virtual Team
6 16 (2.88%) Operational Technology
7 14 (2.52%) Driving Licence
7 14 (2.52%) Management Information System
8 11 (1.98%) Distributed Architecture
8 11 (1.98%) Legacy Applications
9 10 (1.80%) Analytical Mindset
10 8 (1.44%) Clustering
10 8 (1.44%) SCADA
11 7 (1.26%) Enterprise Software
11 7 (1.26%) Low-Code
12 5 (0.90%) Cyber Threat
12 5 (0.90%) Greenfield Project
12 5 (0.90%) Product Ownership
12 5 (0.90%) Reference Data
12 5 (0.90%) Self-Motivation
Operating Systems
1 109 (19.64%) Windows
2 99 (17.84%) Linux
2 99 (17.84%) Windows Server
3 95 (17.12%) Windows Server 2016
4 5 (0.90%) VMS
5 3 (0.54%) Unix
5 3 (0.54%) Windows Server 2019
6 2 (0.36%) Apple iOS
6 2 (0.36%) CentOS
6 2 (0.36%) Red Hat Enterprise Linux
6 2 (0.36%) Ubuntu
6 2 (0.36%) Windows 10
7 1 (0.18%) Solaris
7 1 (0.18%) Windows Server 2003
7 1 (0.18%) Windows Server 2012
Processes & Methodologies
1 230 (41.44%) Migration
2 168 (30.27%) Problem-Solving
3 112 (20.18%) Agile
4 95 (17.12%) CI/CD
4 95 (17.12%) Customer Service
5 91 (16.40%) Customer Experience
6 89 (16.04%) DevOps
7 88 (15.86%) Email Filtering
7 88 (15.86%) Kalman Filter
7 88 (15.86%) Vulnerability Remediation
7 88 (15.86%) Vulnerability Scanning
7 88 (15.86%) Web Filtering
8 86 (15.50%) AI
9 74 (13.33%) Continuous Improvement
9 74 (13.33%) Stakeholder Management
10 68 (12.25%) Roadmaps
11 56 (10.09%) Microservices
12 52 (9.37%) SDLC
13 49 (8.83%) OO
14 47 (8.47%) Analytics
Programming Languages
1 91 (16.40%) SQL
2 53 (9.55%) Delphi
3 47 (8.47%) Python
4 44 (7.93%) Pascal
5 40 (7.21%) C#
6 38 (6.85%) Java
7 32 (5.77%) PowerShell
8 29 (5.23%) JavaScript
9 16 (2.88%) TypeScript
10 15 (2.70%) PHP
11 6 (1.08%) PL/SQL
12 5 (0.90%) Bicep
12 5 (0.90%) T-SQL
13 4 (0.72%) Shell Script
13 4 (0.72%) VB.NET
14 3 (0.54%) Bash
14 3 (0.54%) VB
15 2 (0.36%) RPG
15 2 (0.36%) Scala
16 1 (0.18%) VBScript
Qualifications
1 104 (18.74%) Security Cleared
2 102 (18.38%) SC Cleared
3 60 (10.81%) Degree
4 34 (6.13%) Computer Science Degree
5 9 (1.62%) Azure Certification
6 8 (1.44%) ACCA
7 6 (1.08%) CIMA
8 5 (0.90%) TOGAF Certification
9 4 (0.72%) Microsoft Certification
10 3 (0.54%) AWS Certification
10 3 (0.54%) AWS Certified Solutions Architect
10 3 (0.54%) Cisco Certification
10 3 (0.54%) HND
11 2 (0.36%) CCNP
11 2 (0.36%) DBS Check
11 2 (0.36%) DV Cleared
12 1 (0.18%) CCNA
12 1 (0.18%) CCSP
12 1 (0.18%) MCITP
12 1 (0.18%) SAP Certification
Quality Assurance & Compliance
1 90 (16.22%) Cyber Essentials
2 88 (15.86%) PCI DSS
3 57 (10.27%) QA
4 21 (3.78%) Data Quality
5 14 (2.52%) GDPR
6 12 (2.16%) ISO/IEC 27001
7 5 (0.90%) Accessibility
7 5 (0.90%) IEC 61508
8 4 (0.72%) 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
10 2 (0.36%) NCSC
System Software
1 99 (17.84%) Active Directory
2 96 (17.30%) Hyper-V
3 88 (15.86%) Terminal Server
4 48 (8.65%) Docker
5 13 (2.34%) VMware Infrastructure
6 4 (0.72%) VMware ESXi
7 2 (0.36%) HDFS
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 (8.65%) Kubernetes
2 40 (7.21%) Terraform
3 12 (2.16%) Grafana
4 7 (1.26%) Microsoft Intune
5 4 (0.72%) Prometheus
6 3 (0.54%) Ansible
7 2 (0.36%) CSIRT
7 2 (0.36%) Plesk
8 1 (0.18%) Backup Exec
8 1 (0.18%) Cisco CUCM
8 1 (0.18%) FortiGate
8 1 (0.18%) Jamf Pro
8 1 (0.18%) Kibana
8 1 (0.18%) SCOM
8 1 (0.18%) vCenter Server
8 1 (0.18%) VxRail
8 1 (0.18%) ZABBIX
Vendors
1 181 (32.61%) Microsoft
2 106 (19.10%) VMware
3 92 (16.58%) Splunk
4 91 (16.40%) SolarWinds
5 90 (16.22%) Veeam
6 88 (15.86%) Brocade
6 88 (15.86%) Nimble Storage
6 88 (15.86%) Tanium
7 75 (13.51%) Oracle
8 29 (5.23%) Google
9 15 (2.70%) SAP
10 14 (2.52%) Salesforce
11 12 (2.16%) Databricks
12 7 (1.26%) Cisco
12 7 (1.26%) OpenAI
12 7 (1.26%) Workday
13 5 (0.90%) Citrix
13 5 (0.90%) Rockwell
13 5 (0.90%) Sage
13 5 (0.90%) Siemens