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

6 months to
30 Nov 2025
Same period 2024 Same period 2023
Rank 224 406 418
Rank change year-on-year +182 +12 -25
Permanent jobs citing Legacy Systems 558 377 319
As % of all permanent jobs in the UK 1.03% 0.58% 0.63%
As % of the Miscellaneous category 2.96% 1.67% 1.63%
Number of salaries quoted 301 217 284
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 £83,000 £78,750 £85,750
90th Percentile £97,500 £120,000 £97,064
UK excluding London median annual salary £63,425 £45,000 £55,000
% change year-on-year +40.94% -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 18,821 22,516 19,551
As % of all permanent jobs advertised in the UK 34.79% 34.40% 38.35%
Number of salaries quoted 10,563 11,029 14,711
10th Percentile £27,707 £33,625 £33,500
25th Percentile £36,250 £45,000 £45,000
Median annual salary (50th Percentile) £53,750 £60,000 £62,500
Median % change year-on-year -10.42% -4.00% -
75th Percentile £77,500 £83,000 £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 30 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 30 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 +180 491 £67,500 +28.57% 190
UK excluding London +128 319 £63,425 +40.94% 177
London +135 195 £77,500 +22.05% 65
Work from Home +79 136 £62,500 +19.05% 111
South West +109 104 £62,500 -7.41% 15
Midlands +63 70 £65,000 +44.44% 43
West Midlands +59 54 £65,000 +52.94% 19
South East +31 50 £65,000 +44.44% 60
North of England +36 41 £70,000 +64.71% 29
Wales +27 30 £55,000 +46.67% 7
North West +45 28 £70,000 +64.71% 18
East Midlands +30 16 £52,500 +16.67% 23
East of England +30 13 £62,500 -3.85% 13
Scotland +12 12 £47,500 +6.74% 12
Yorkshire +10 10 £65,000 +6.56% 6
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 (17.03%) Microsoft Exchange
2 18 (3.23%) Apache Airflow
3 17 (3.05%) Apache
4 11 (1.97%) Apache Spark
5 10 (1.79%) SharePoint
6 8 (1.43%) Confluence
7 5 (0.90%) Apache Synapse
7 5 (0.90%) WinCC
8 4 (0.72%) CMS
8 4 (0.72%) IIS
9 3 (0.54%) Appian
10 2 (0.36%) ColdFusion
10 2 (0.36%) FactoryTalk
10 2 (0.36%) JBoss
10 2 (0.36%) OpenEdge
10 2 (0.36%) SAS
11 1 (0.18%) Adobe Experience Manager
11 1 (0.18%) Exchange Server 2003
11 1 (0.18%) Kentico
11 1 (0.18%) nginx
Applications
1 12 (2.15%) Microsoft Excel
2 11 (1.97%) Microsoft Office
3 5 (0.90%) 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%) Primavera
6 1 (0.18%) Raiser’s Edge
6 1 (0.18%) SAP MDG
Cloud Services
1 243 (43.55%) Azure
2 109 (19.53%) AWS
2 109 (19.53%) Microsoft 365
3 36 (6.45%) Power Platform
4 31 (5.56%) Azure DevOps
5 28 (5.02%) SaaS
6 25 (4.48%) Amazon Bedrock
6 25 (4.48%) Vertex AI
7 23 (4.12%) GitHub
8 20 (3.58%) GCP
9 15 (2.69%) Serverless
10 13 (2.33%) Dynamics 365
10 13 (2.33%) Entra ID
11 12 (2.15%) Amazon SQS
12 10 (1.79%) Amazon CloudWatch
12 10 (1.79%) Azure Synapse Analytics
12 10 (1.79%) ChatGPT
12 10 (1.79%) GitHub Copilot
13 9 (1.61%) OpenShift
14 8 (1.43%) Azure Data Factory
Communications & Networking
1 94 (16.85%) DNS
2 93 (16.67%) DHCP
3 18 (3.23%) Firewall
4 8 (1.43%) VPN
5 6 (1.08%) Modbus
5 6 (1.08%) WAN
6 4 (0.72%) LAN
6 4 (0.72%) SD-WAN
6 4 (0.72%) TCP/IP
7 3 (0.54%) Intranet
7 3 (0.54%) Wi-Fi
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%) Fibre Channel
9 1 (0.18%) PuTTY
9 1 (0.18%) Structured Cabling
Database & Business Intelligence
1 133 (23.84%) SQL Server
2 89 (15.95%) Amazon RDS
3 52 (9.32%) MySQL
4 36 (6.45%) SQL Server Integration Services
5 27 (4.84%) Power BI
6 24 (4.30%) NoSQL
7 20 (3.58%) PostgreSQL
8 15 (2.69%) Relational Database
9 14 (2.51%) SQL Server Reporting Services
10 9 (1.61%) Amazon Redshift
10 9 (1.61%) BigQuery
10 9 (1.61%) Data Warehouse
10 9 (1.61%) Metadata
10 9 (1.61%) MongoDB
11 8 (1.43%) Big Data
11 8 (1.43%) Geospatial Data
12 6 (1.08%) Oracle Database
13 5 (0.90%) Data Mining
13 5 (0.90%) Hadoop
13 5 (0.90%) Metadata Repository
Development Applications
1 21 (3.76%) Git
1 21 (3.76%) Octopus Deploy
2 18 (3.23%) Jenkins
2 18 (3.23%) TeamCity
3 12 (2.15%) GitLab
4 11 (1.97%) ERwin
5 10 (1.79%) JIRA
5 10 (1.79%) JUnit
6 9 (1.61%) Cucumber
7 8 (1.43%) Selenium
8 5 (0.90%) Maven
9 4 (0.72%) Gradle
10 3 (0.54%) 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%) Postman
12 1 (0.18%) Sonatype Nexus
General
1 257 (46.06%) Social Skills
2 167 (29.93%) Analytical Skills
3 131 (23.48%) Finance
4 24 (4.30%) Banking
4 24 (4.30%) Public Sector
5 21 (3.76%) Legal
6 20 (3.58%) Inclusion and Diversity
7 19 (3.41%) Law
8 17 (3.05%) Retail
9 11 (1.97%) Manufacturing
10 10 (1.79%) Marketing
11 9 (1.61%) Investment Banking
12 7 (1.25%) Influencing Skills
13 5 (0.90%) Back Office
13 5 (0.90%) Documentation Skills
13 5 (0.90%) 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 (16.13%) Developer
2 88 (15.77%) Systems Engineer
3 78 (13.98%) Senior
4 72 (12.90%) Architect
4 72 (12.90%) Consultant
5 56 (10.04%) Lead
6 30 (5.38%) Analyst
7 25 (4.48%) Gen AI Consultant
7 25 (4.48%) Senior Consultant
8 23 (4.12%) Senior Developer
9 21 (3.76%) DevOps Engineer
9 21 (3.76%) Enterprise Architect
9 21 (3.76%) Software Developer
10 20 (3.58%) Data Architect
10 20 (3.58%) Data Engineer
11 19 (3.41%) Solutions Architect
12 18 (3.23%) .NET Developer
13 16 (2.87%) Lead Developer
14 14 (2.51%) Lead Architect
15 12 (2.15%) Lead Data Architect
Libraries, Frameworks & Software Standards
1 62 (11.11%) .NET
2 32 (5.73%) REST
3 27 (4.84%) Spring
4 26 (4.66%) LangChain
4 26 (4.66%) RESTful
5 24 (4.30%) Spring Boot
6 23 (4.12%) React
7 21 (3.76%) Kafka
8 15 (2.69%) Pandas
9 14 (2.51%) Django
10 13 (2.33%) JPA
11 12 (2.15%) AngularJS
11 12 (2.15%) CSS
12 11 (1.97%) Flask
12 11 (1.97%) Hibernate
12 11 (1.97%) HTML
12 11 (1.97%) pytest
12 11 (1.97%) Web Services
13 10 (1.79%) Laravel
14 9 (1.61%) ASP.NET
Miscellaneous
1 61 (10.93%) Cloud Native
2 32 (5.73%) Data Structures
3 25 (4.48%) Hybrid Cloud
4 21 (3.76%) Data Centre
5 19 (3.41%) Virtual Team
6 15 (2.69%) Operational Technology
7 14 (2.51%) Management Information System
8 13 (2.33%) Driving Licence
9 12 (2.15%) Legacy Applications
10 10 (1.79%) Analytical Mindset
10 10 (1.79%) Distributed Architecture
11 9 (1.61%) Clustering
12 7 (1.25%) Low-Code
12 7 (1.25%) SCADA
13 6 (1.08%) Enterprise Software
13 6 (1.08%) Self-Motivation
14 5 (0.90%) Greenfield Project
14 5 (0.90%) Product Ownership
14 5 (0.90%) Reference Data
15 4 (0.72%) Onboarding
Operating Systems
1 108 (19.35%) Windows
2 99 (17.74%) Windows Server
3 97 (17.38%) Linux
4 95 (17.03%) Windows Server 2016
5 5 (0.90%) 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
1 228 (40.86%) Migration
2 168 (30.11%) Problem-Solving
3 116 (20.79%) Agile
4 96 (17.20%) CI/CD
5 95 (17.03%) Customer Service
6 91 (16.31%) Customer Experience
7 89 (15.95%) DevOps
8 88 (15.77%) AI
8 88 (15.77%) Email Filtering
8 88 (15.77%) Kalman Filter
8 88 (15.77%) Vulnerability Remediation
8 88 (15.77%) Vulnerability Scanning
8 88 (15.77%) Web Filtering
9 73 (13.08%) Stakeholder Management
10 72 (12.90%) Continuous Improvement
11 68 (12.19%) Roadmaps
12 56 (10.04%) Microservices
13 52 (9.32%) SDLC
14 49 (8.78%) Analytics
15 48 (8.60%) OO
Programming Languages
1 97 (17.38%) SQL
2 53 (9.50%) Delphi
3 49 (8.78%) Python
4 44 (7.89%) Pascal
5 41 (7.35%) C#
6 38 (6.81%) Java
7 31 (5.56%) PowerShell
8 28 (5.02%) JavaScript
9 16 (2.87%) PHP
9 16 (2.87%) TypeScript
10 7 (1.25%) PL/SQL
11 5 (0.90%) Bicep
11 5 (0.90%) T-SQL
11 5 (0.90%) VB.NET
12 4 (0.72%) Shell Script
13 3 (0.54%) VB
14 2 (0.36%) Bash
14 2 (0.36%) R
14 2 (0.36%) RPG
14 2 (0.36%) Scala
Qualifications
1 103 (18.46%) Security Cleared
2 101 (18.10%) SC Cleared
3 59 (10.57%) Degree
4 33 (5.91%) Computer Science Degree
5 9 (1.61%) Azure Certification
6 8 (1.43%) 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
11 2 (0.36%) CCNP
11 2 (0.36%) DBS Check
11 2 (0.36%) DV Cleared
11 2 (0.36%) HND
12 1 (0.18%) APMG
12 1 (0.18%) CCSP
12 1 (0.18%) MCSA
12 1 (0.18%) PhD
Quality Assurance & Compliance
1 90 (16.13%) Cyber Essentials
2 88 (15.77%) PCI DSS
3 58 (10.39%) QA
4 20 (3.58%) Data Quality
5 15 (2.69%) GDPR
6 11 (1.97%) ISO/IEC 27001
7 5 (0.90%) Accessibility
7 5 (0.90%) IEC 61508
8 3 (0.54%) COBIT
8 3 (0.54%) IEC 61131
8 3 (0.54%) PMO
9 2 (0.36%) Cyber Essentials PLUS
9 2 (0.36%) ISO 20022
9 2 (0.36%) NCSC
9 2 (0.36%) NIST
System Software
1 99 (17.74%) Active Directory
2 96 (17.20%) Hyper-V
3 88 (15.77%) Terminal Server
4 45 (8.06%) 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 45 (8.06%) Kubernetes
2 39 (6.99%) 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
1 185 (33.15%) Microsoft
2 106 (19.00%) VMware
3 92 (16.49%) Splunk
4 91 (16.31%) SolarWinds
5 90 (16.13%) Veeam
6 88 (15.77%) Brocade
6 88 (15.77%) Nimble Storage
6 88 (15.77%) Tanium
7 73 (13.08%) Oracle
8 30 (5.38%) Google
9 15 (2.69%) Databricks
9 15 (2.69%) SAP
10 14 (2.51%) Salesforce
11 7 (1.25%) Cisco
11 7 (1.25%) Workday
12 6 (1.08%) OpenAI
13 5 (0.90%) Citrix
13 5 (0.90%) HubSpot
13 5 (0.90%) Rockwell
13 5 (0.90%) Siemens