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

6 months to
3 Dec 2025
Same period 2024 Same period 2023
Rank 237 399 411
Rank change year-on-year +162 +12 -26
Permanent jobs citing Legacy Systems 559 379 318
As % of all permanent jobs in the UK 1.02% 0.60% 0.63%
As % of the Miscellaneous category 2.97% 1.71% 1.66%
Number of salaries quoted 301 220 281
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 £76,875 £85,750
90th Percentile £97,500 £120,000 £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 18,795 22,125 19,190
As % of all permanent jobs advertised in the UK 34.41% 34.87% 38.20%
Number of salaries quoted 10,562 10,888 14,443
10th Percentile £27,750 £33,750 £33,428
25th Percentile £36,250 £45,000 £45,000
Median annual salary (50th Percentile) £53,600 £60,000 £62,500
Median % change year-on-year -10.67% -4.00% -
75th Percentile £77,500 £83,750 £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 3 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 3 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 +188 492 £67,500 +28.57% 184
UK excluding London +121 320 £64,350 +43.00% 177
London +126 194 £77,500 +23.02% 62
Work from Home +68 137 £62,500 +19.05% 105
South West +99 103 £63,425 -6.04% 12
Midlands +68 72 £65,000 +52.94% 39
West Midlands +50 54 £65,000 +52.94% 18
South East +33 50 £65,000 +44.44% 62
North of England +15 41 £70,000 +64.71% 32
Wales +26 30 £55,000 +46.67% 7
North West +37 28 £70,000 +64.71% 19
East Midlands +25 18 £53,850 +19.67% 21
East of England +36 13 £62,500 -3.85% 14
Scotland +19 12 £47,500 +6.74% 12
Yorkshire +1 10 £65,000 +6.56% 9
North East +6 3 £72,500 +145.76% 4
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 (16.99%) Microsoft Exchange
2 19 (3.40%) Apache Airflow
3 18 (3.22%) Apache
4 10 (1.79%) SharePoint
5 9 (1.61%) Apache Spark
6 8 (1.43%) Confluence
7 5 (0.89%) Apache Synapse
7 5 (0.89%) WinCC
8 4 (0.72%) Appian
8 4 (0.72%) CMS
8 4 (0.72%) IIS
9 2 (0.36%) ColdFusion
9 2 (0.36%) FactoryTalk
9 2 (0.36%) JBoss
9 2 (0.36%) OpenEdge
9 2 (0.36%) 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 (2.15%) Microsoft Excel
2 11 (1.97%) Microsoft Office
3 5 (0.89%) Microsoft PowerPoint
4 3 (0.54%) Windchill
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
6 1 (0.18%) MS Visio
Business Applications
1 13 (2.33%) Dynamics CRM
2 7 (1.25%) 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
1 242 (43.29%) Azure
2 110 (19.68%) AWS
3 109 (19.50%) Microsoft 365
4 36 (6.44%) Power Platform
5 31 (5.55%) Azure DevOps
6 28 (5.01%) SaaS
7 25 (4.47%) Amazon Bedrock
7 25 (4.47%) Vertex AI
8 23 (4.11%) GitHub
9 20 (3.58%) GCP
10 13 (2.33%) Amazon SQS
10 13 (2.33%) Dynamics 365
10 13 (2.33%) Entra ID
10 13 (2.33%) Serverless
11 10 (1.79%) Amazon CloudWatch
11 10 (1.79%) Azure Synapse Analytics
11 10 (1.79%) ChatGPT
11 10 (1.79%) GitHub Copilot
12 9 (1.61%) Azure Data Factory
12 9 (1.61%) OpenShift
Communications & Networking
1 94 (16.82%) DNS
2 93 (16.64%) DHCP
3 18 (3.22%) Firewall
4 8 (1.43%) VPN
5 7 (1.25%) Modbus
6 6 (1.07%) 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%) SAN
9 2 (0.36%) Unified Communications
9 2 (0.36%) VoIP
10 1 (0.18%) ISDN
10 1 (0.18%) SMTP
Database & Business Intelligence
1 130 (23.26%) SQL Server
2 89 (15.92%) Amazon RDS
3 52 (9.30%) MySQL
4 36 (6.44%) SQL Server Integration Services
5 27 (4.83%) Power BI
6 21 (3.76%) NoSQL
7 20 (3.58%) PostgreSQL
8 14 (2.50%) Relational Database
8 14 (2.50%) SQL Server Reporting Services
9 9 (1.61%) Amazon Redshift
9 9 (1.61%) BigQuery
9 9 (1.61%) Data Warehouse
9 9 (1.61%) Metadata
10 8 (1.43%) Big Data
10 8 (1.43%) Geospatial Data
10 8 (1.43%) MongoDB
11 6 (1.07%) Oracle Database
12 5 (0.89%) Data Mining
12 5 (0.89%) Metadata Repository
13 4 (0.72%) Pinecone
Development Applications
1 21 (3.76%) Octopus Deploy
2 20 (3.58%) Git
3 18 (3.22%) Jenkins
3 18 (3.22%) TeamCity
4 12 (2.15%) GitLab
5 11 (1.97%) ERwin
6 10 (1.79%) JIRA
6 10 (1.79%) JUnit
7 9 (1.61%) Cucumber
8 8 (1.43%) Selenium
9 5 (0.89%) Maven
10 4 (0.72%) Gradle
10 4 (0.72%) MLflow
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%) JMeter
12 1 (0.18%) Mockito
12 1 (0.18%) Sonatype Nexus
General
1 261 (46.69%) Social Skills
2 167 (29.87%) Analytical Skills
3 132 (23.61%) Finance
4 24 (4.29%) Banking
4 24 (4.29%) Public Sector
5 21 (3.76%) Legal
6 20 (3.58%) Inclusion and Diversity
7 18 (3.22%) Retail
8 17 (3.04%) Law
9 11 (1.97%) Manufacturing
10 10 (1.79%) Marketing
11 9 (1.61%) Investment Banking
12 7 (1.25%) Influencing Skills
13 5 (0.89%) Back Office
13 5 (0.89%) Documentation Skills
13 5 (0.89%) Organisational Skills
14 4 (0.72%) Presentation Skills
15 3 (0.54%) Aerospace
15 3 (0.54%) Agriculture
15 3 (0.54%) Billing
Job Titles
1 90 (16.10%) Developer
2 88 (15.74%) Systems Engineer
3 78 (13.95%) Senior
4 73 (13.06%) Architect
5 72 (12.88%) Consultant
6 55 (9.84%) Lead
7 30 (5.37%) Analyst
8 25 (4.47%) Gen AI Consultant
8 25 (4.47%) Senior Consultant
9 23 (4.11%) Senior Developer
10 22 (3.94%) Enterprise Architect
11 21 (3.76%) DevOps Engineer
11 21 (3.76%) Software Developer
12 20 (3.58%) Data Architect
13 19 (3.40%) Solutions Architect
14 18 (3.22%) Data Engineer
15 17 (3.04%) .NET Developer
16 15 (2.68%) Lead Developer
17 14 (2.50%) Lead Architect
18 12 (2.15%) Lead Data Architect
Libraries, Frameworks & Software Standards
1 60 (10.73%) .NET
2 33 (5.90%) REST
3 28 (5.01%) RESTful
3 28 (5.01%) Spring
4 26 (4.65%) LangChain
5 25 (4.47%) Spring Boot
6 22 (3.94%) Kafka
7 20 (3.58%) React
8 17 (3.04%) Pandas
9 14 (2.50%) JPA
10 13 (2.33%) Django
11 12 (2.15%) CSS
11 12 (2.15%) Flask
11 12 (2.15%) Hibernate
11 12 (2.15%) pytest
11 12 (2.15%) Web Services
12 11 (1.97%) AngularJS
12 11 (1.97%) HTML
13 10 (1.79%) Laravel
14 9 (1.61%) OAuth
Miscellaneous
1 62 (11.09%) Cloud Native
2 32 (5.72%) Data Structures
3 25 (4.47%) Hybrid Cloud
4 21 (3.76%) Data Centre
5 19 (3.40%) Virtual Team
6 16 (2.86%) Operational Technology
7 14 (2.50%) Driving Licence
7 14 (2.50%) Management Information System
8 11 (1.97%) Distributed Architecture
8 11 (1.97%) Legacy Applications
9 10 (1.79%) Analytical Mindset
10 8 (1.43%) Clustering
10 8 (1.43%) Low-Code
10 8 (1.43%) SCADA
11 7 (1.25%) Enterprise Software
12 6 (1.07%) Self-Motivation
13 5 (0.89%) Greenfield Project
13 5 (0.89%) Product Ownership
13 5 (0.89%) Reference Data
14 4 (0.72%) Onboarding
Operating Systems
1 108 (19.32%) Windows
2 99 (17.71%) Windows Server
3 97 (17.35%) Linux
4 95 (16.99%) Windows Server 2016
5 5 (0.89%) VMS
6 4 (0.72%) Unix
7 3 (0.54%) Windows Server 2019
8 2 (0.36%) Apple iOS
8 2 (0.36%) CentOS
8 2 (0.36%) Red Hat Enterprise Linux
8 2 (0.36%) Ubuntu
8 2 (0.36%) Windows 10
9 1 (0.18%) Solaris
9 1 (0.18%) Windows Server 2003
9 1 (0.18%) Windows Server 2012
Processes & Methodologies
1 230 (41.14%) Migration
2 168 (30.05%) Problem-Solving
3 114 (20.39%) Agile
4 96 (17.17%) CI/CD
5 95 (16.99%) Customer Service
6 91 (16.28%) Customer Experience
7 89 (15.92%) AI
8 88 (15.74%) DevOps
8 88 (15.74%) Email Filtering
8 88 (15.74%) Kalman Filter
8 88 (15.74%) Vulnerability Remediation
8 88 (15.74%) Vulnerability Scanning
8 88 (15.74%) Web Filtering
9 74 (13.24%) Stakeholder Management
10 72 (12.88%) Continuous Improvement
11 68 (12.16%) Roadmaps
12 56 (10.02%) Microservices
13 52 (9.30%) SDLC
14 49 (8.77%) Analytics
14 49 (8.77%) OO
Programming Languages
1 96 (17.17%) SQL
2 53 (9.48%) Delphi
3 49 (8.77%) Python
4 44 (7.87%) Pascal
5 39 (6.98%) C#
5 39 (6.98%) Java
6 31 (5.55%) PowerShell
7 28 (5.01%) JavaScript
8 16 (2.86%) PHP
8 16 (2.86%) TypeScript
9 7 (1.25%) PL/SQL
10 5 (0.89%) Bicep
10 5 (0.89%) T-SQL
11 4 (0.72%) Shell Script
11 4 (0.72%) VB.NET
12 3 (0.54%) VB
13 2 (0.36%) Bash
13 2 (0.36%) Data Analysis Expressions
13 2 (0.36%) R
13 2 (0.36%) Scala
Qualifications
1 104 (18.60%) Security Cleared
2 102 (18.25%) SC Cleared
3 60 (10.73%) Degree
4 33 (5.90%) Computer Science Degree
5 9 (1.61%) Azure Certification
6 8 (1.43%) ACCA
7 6 (1.07%) CIMA
8 5 (0.89%) 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%) MCSA
12 1 (0.18%) PhD
12 1 (0.18%) SAP Certification
Quality Assurance & Compliance
1 90 (16.10%) Cyber Essentials
2 88 (15.74%) PCI DSS
3 58 (10.38%) QA
4 21 (3.76%) Data Quality
5 15 (2.68%) GDPR
6 11 (1.97%) ISO/IEC 27001
7 5 (0.89%) Accessibility
7 5 (0.89%) IEC 61508
8 3 (0.54%) COBIT
8 3 (0.54%) IEC 61131
8 3 (0.54%) NIST
8 3 (0.54%) PMO
9 2 (0.36%) Cyber Essentials PLUS
9 2 (0.36%) ISO 20022
9 2 (0.36%) NCSC
System Software
1 99 (17.71%) Active Directory
2 96 (17.17%) Hyper-V
3 88 (15.74%) Terminal Server
4 47 (8.41%) Docker
5 13 (2.33%) VMware Infrastructure
6 4 (0.72%) VMware ESXi
7 3 (0.54%) HDFS
8 2 (0.36%) Virtual Desktop
9 1 (0.18%) Virtual Machines
9 1 (0.18%) Virtual Servers
9 1 (0.18%) VMware Server
9 1 (0.18%) vSphere
Systems Management
1 47 (8.41%) Kubernetes
2 39 (6.98%) Terraform
3 12 (2.15%) Grafana
4 7 (1.25%) 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
1 182 (32.56%) Microsoft
2 106 (18.96%) VMware
3 92 (16.46%) Splunk
4 91 (16.28%) SolarWinds
5 90 (16.10%) Veeam
6 88 (15.74%) Brocade
6 88 (15.74%) Nimble Storage
6 88 (15.74%) Tanium
7 74 (13.24%) Oracle
8 30 (5.37%) Google
9 15 (2.68%) SAP
10 14 (2.50%) Salesforce
11 13 (2.33%) Databricks
12 7 (1.25%) Cisco
12 7 (1.25%) OpenAI
12 7 (1.25%) Workday
13 5 (0.89%) Citrix
13 5 (0.89%) Rockwell
13 5 (0.89%) Sage
13 5 (0.89%) Siemens