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

6 months to
18 Sep 2025
Same period 2024 Same period 2023
Rank 288 491 412
Rank change year-on-year +203 -79 +60
Permanent jobs citing Legacy Systems 491 323 421
As % of all permanent jobs advertised in the UK 0.99% 0.41% 0.70%
As % of the Miscellaneous category 2.42% 1.29% 1.71%
Number of salaries quoted 264 209 368
10th Percentile £45,000 £40,000 £43,925
25th Percentile £53,438 £42,500 £52,500
Median annual salary (50th Percentile) £65,000 £60,000 £65,000
Median % change year-on-year +8.33% -7.69% -3.70%
75th Percentile £80,000 £86,250 £90,000
90th Percentile £95,000 £132,500 £112,500
UK excluding London median annual salary £64,675 £50,047 £60,000
% change year-on-year +29.23% -16.59% -

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 20,297 25,121 24,682
As % of all permanent jobs advertised in the UK 41.04% 32.16% 40.96%
Number of salaries quoted 10,195 13,124 17,790
10th Percentile £28,750 £31,250 £35,000
25th Percentile £36,925 £43,116 £46,250
Median annual salary (50th Percentile) £55,000 £60,000 £62,500
Median % change year-on-year -8.33% -4.00% -
75th Percentile £77,500 £82,500 £84,056
90th Percentile £104,800 £108,750 £107,500
UK excluding London median annual salary £47,500 £52,500 £55,000
% change year-on-year -9.52% -4.55% +4.76%

Legacy Systems
Job Vacancy Trend

Job postings citing Legacy Systems as a proportion of all IT jobs advertised.

Job vacancy trend for Legacy Systems 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 18 September 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 18 September 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 +180 442 £67,000 +11.67% 309
UK excluding London +173 297 £64,675 +29.23% 257
London +125 166 £76,250 -4.69% 113
Work from Home +44 111 £65,000 +23.81% 193
South East +54 73 £60,000 +33.33% 86
Midlands +82 70 £65,000 +30.00% 51
South West +126 64 £70,000 +3.70% 35
West Midlands +72 53 £65,000 +30.00% 26
North of England +14 46 £71,250 +35.71% 43
North West +18 32 £72,500 +38.10% 18
Wales +32 18 £55,000 -16.92% 7
East Midlands +39 17 £52,500 +7.69% 24
Scotland +52 15 £52,500 -21.93% 14
Yorkshire +18 12 £65,000 -1.89% 18
East of England -21 11 £62,500 -3.85% 20
Northern Ireland +14 2 £30,000 -65.71% 1
North East +13 2 £72,500 +37.44% 7

Legacy Systems
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 57 (11.61%) Microsoft Exchange
2 15 (3.05%) Apache
2 15 (3.05%) Apache Airflow
3 13 (2.65%) Apache Spark
4 7 (1.43%) SharePoint
5 5 (1.02%) WinCC
6 4 (0.81%) Apache Synapse
6 4 (0.81%) Confluence
7 2 (0.41%) CMS
7 2 (0.41%) FactoryTalk
7 2 (0.41%) IIS
7 2 (0.41%) OpenEdge
8 1 (0.20%) Exchange Server 2003
8 1 (0.20%) JBoss
8 1 (0.20%) Jupyter
8 1 (0.20%) nginx
8 1 (0.20%) Oracle SOA Suite
Applications
1 15 (3.05%) Microsoft Excel
1 15 (3.05%) Microsoft Office
2 10 (2.04%) Microsoft PowerPoint
3 3 (0.61%) Windchill
4 1 (0.20%) Adobe Illustrator
4 1 (0.20%) Oracle Smart View
Business Applications
1 23 (4.68%) Oracle EBS
2 7 (1.43%) Dynamics CRM
2 7 (1.43%) NetSuite
3 5 (1.02%) Dynamics GP
4 4 (0.81%) SAP FI
4 4 (0.81%) SAP S/4HANA
5 3 (0.61%) Oracle Payables
5 3 (0.61%) Shopify
6 2 (0.41%) Infor M3
6 2 (0.41%) Oracle Cash Management
6 2 (0.41%) Oracle Procure-to-Pay
7 1 (0.20%) Aladdin
7 1 (0.20%) Raiser’s Edge
7 1 (0.20%) SAP MDG
Cloud Services
1 190 (38.70%) Azure
2 103 (20.98%) AWS
3 59 (12.02%) Microsoft 365
4 41 (8.35%) Power Platform
5 28 (5.70%) SaaS
6 26 (5.30%) GCP
7 25 (5.09%) Amazon Bedrock
7 25 (5.09%) Vertex AI
8 22 (4.48%) Azure DevOps
9 17 (3.46%) Dynamics 365
10 15 (3.05%) Serverless
11 13 (2.65%) Azure Synapse Analytics
11 13 (2.65%) GitHub
11 13 (2.65%) Snowflake
12 9 (1.83%) Amazon SQS
12 9 (1.83%) PowerApps
13 8 (1.63%) ChatGPT
13 8 (1.63%) GitHub Copilot
13 8 (1.63%) IaaS
13 8 (1.63%) OpenShift
Communications & Networking
1 57 (11.61%) DNS
2 56 (11.41%) DHCP
3 16 (3.26%) Firewall
4 7 (1.43%) Network Security
4 7 (1.43%) SMTP
5 6 (1.22%) Remote Desktop
5 6 (1.22%) VPN
6 5 (1.02%) Modbus
7 4 (0.81%) WAN
8 3 (0.61%) LAN
9 2 (0.41%) HTTP
9 2 (0.41%) SAN
9 2 (0.41%) SD-WAN
9 2 (0.41%) Wi-Fi
10 1 (0.20%) Fibre Channel
10 1 (0.20%) iSCSI
10 1 (0.20%) NAS
10 1 (0.20%) SSL
10 1 (0.20%) Structured Cabling
10 1 (0.20%) Unified Communications
Database & Business Intelligence
1 92 (18.74%) SQL Server
2 55 (11.20%) Amazon RDS
3 44 (8.96%) MySQL
4 30 (6.11%) NoSQL
5 26 (5.30%) Power BI
5 26 (5.30%) SQL Server Integration Services
6 22 (4.48%) Oracle ODI
7 13 (2.65%) MongoDB
8 12 (2.44%) Relational Database
9 11 (2.24%) PostgreSQL
9 11 (2.24%) SQL Server Reporting Services
10 10 (2.04%) Amazon Redshift
10 10 (2.04%) Big Data
10 10 (2.04%) BigQuery
11 8 (1.63%) Tableau
12 7 (1.43%) Data Lake
12 7 (1.43%) Hadoop
13 5 (1.02%) Apache Hive
13 5 (1.02%) Data Warehouse
13 5 (1.02%) HBase
Development Applications
1 20 (4.07%) Git
2 14 (2.85%) Octopus Deploy
3 11 (2.24%) ERwin
3 11 (2.24%) TeamCity
4 9 (1.83%) Jenkins
5 7 (1.43%) JIRA
6 6 (1.22%) Gradle
6 6 (1.22%) Maven
7 4 (0.81%) PHPUnit
7 4 (0.81%) Subversion
8 2 (0.41%) Artifactory
8 2 (0.41%) GitLab
8 2 (0.41%) JUnit
8 2 (0.41%) SQL Server Management Studio (SSMS)
9 1 (0.20%) Cucumber
9 1 (0.20%) JMeter
9 1 (0.20%) Mockito
9 1 (0.20%) Postman
9 1 (0.20%) Vite
General
1 195 (39.71%) Social Skills
2 136 (27.70%) Analytical Skills
3 134 (27.29%) Finance
4 28 (5.70%) Banking
5 26 (5.30%) Inclusion and Diversity
6 24 (4.89%) Public Sector
7 21 (4.28%) Law
8 18 (3.67%) Legal
8 18 (3.67%) Retail
9 15 (3.05%) Manufacturing
10 12 (2.44%) Marketing
11 11 (2.24%) Documentation Skills
11 11 (2.24%) Investment Banking
12 6 (1.22%) Back Office
13 5 (1.02%) Presentation Skills
14 4 (0.81%) Aerospace
14 4 (0.81%) Agriculture
14 4 (0.81%) Billing
14 4 (0.81%) Local Government
14 4 (0.81%) Military
Job Titles
1 90 (18.33%) Developer
2 79 (16.09%) Consultant
3 66 (13.44%) Senior
4 61 (12.42%) Architect
4 61 (12.42%) Lead
5 50 (10.18%) Systems Engineer
6 28 (5.70%) Analyst
7 27 (5.50%) Senior Consultant
8 25 (5.09%) Gen AI Consultant
9 23 (4.68%) Data Engineer
9 23 (4.68%) Solutions Architect
10 20 (4.07%) Lead Developer
11 19 (3.87%) Data Architect
12 17 (3.46%) Data Consultant
12 17 (3.46%) Data Migration Consultant
12 17 (3.46%) Migration Consultant
12 17 (3.46%) Senior Developer
13 15 (3.05%) Full-Stack Developer
13 15 (3.05%) Lead Architect
13 15 (3.05%) Lead Data Architect
Libraries, Frameworks & Software Standards
1 43 (8.76%) .NET
2 30 (6.11%) REST
3 26 (5.30%) Oracle Fusion
4 25 (5.09%) LangChain
5 19 (3.87%) RESTful
6 18 (3.67%) React
7 17 (3.46%) Kafka
7 17 (3.46%) Spring
8 14 (2.85%) Laravel
9 13 (2.65%) CSS
10 12 (2.44%) HTML
10 12 (2.44%) JPA
10 12 (2.44%) Spring Boot
11 11 (2.24%) AngularJS
12 9 (1.83%) Pandas
12 9 (1.83%) Vue
13 8 (1.63%) Blazor
13 8 (1.63%) Hibernate
14 7 (1.43%) Tailwind CSS
15 6 (1.22%) Alpine.js
Miscellaneous
1 55 (11.20%) Data Structures
2 41 (8.35%) Cloud Native
3 24 (4.89%) Hybrid Cloud
4 17 (3.46%) Clustering
4 17 (3.46%) Data Centre
4 17 (3.46%) Operational Technology
5 14 (2.85%) Management Information System
6 11 (2.24%) Distributed Architecture
6 11 (2.24%) Virtual Team
7 9 (1.83%) PKI
8 8 (1.63%) Analytical Mindset
8 8 (1.63%) Distributed Systems
8 8 (1.63%) Driving Licence
8 8 (1.63%) Legacy Applications
9 7 (1.43%) SCADA
10 6 (1.22%) Greenfield Project
10 6 (1.22%) Product Ownership
10 6 (1.22%) Self-Motivation
10 6 (1.22%) Taxonomies
11 5 (1.02%) Cyber Threat
Operating Systems
1 70 (14.26%) Windows
2 63 (12.83%) Windows Server
3 58 (11.81%) Linux
4 53 (10.79%) Windows Server 2016
5 6 (1.22%) Unix
6 3 (0.61%) Windows Server 2019
7 2 (0.41%) Apple iOS
7 2 (0.41%) VMS
7 2 (0.41%) Windows 10
7 2 (0.41%) Windows Server 2003
7 2 (0.41%) zOS
8 1 (0.20%) Red Hat Enterprise Linux
8 1 (0.20%) Solaris
8 1 (0.20%) Windows Server 2012
Processes & Methodologies
1 180 (36.66%) Migration
2 118 (24.03%) Problem-Solving
3 109 (22.20%) Agile
4 90 (18.33%) Stakeholder Management
5 77 (15.68%) Artificial Intelligence
6 68 (13.85%) Data Migration
7 65 (13.24%) DevOps
7 65 (13.24%) ETL
8 63 (12.83%) Roadmaps
9 62 (12.63%) CI/CD
10 57 (11.61%) Continuous Improvement
11 54 (11.00%) Customer Service
12 51 (10.39%) ERP
13 50 (10.18%) Analytics
14 48 (9.78%) Customer Experience
14 48 (9.78%) Email Filtering
14 48 (9.78%) Kalman Filter
14 48 (9.78%) Vulnerability Remediation
14 48 (9.78%) Vulnerability Scanning
14 48 (9.78%) Web Filtering
Programming Languages
1 109 (22.20%) SQL
2 40 (8.15%) Python
3 34 (6.92%) C#
4 32 (6.52%) Delphi
4 32 (6.52%) Pascal
5 31 (6.31%) Java
6 29 (5.91%) PL/SQL
7 24 (4.89%) JavaScript
8 21 (4.28%) PowerShell
9 20 (4.07%) PHP
10 9 (1.83%) TypeScript
11 7 (1.43%) VBA
12 6 (1.22%) R
13 4 (0.81%) Bicep
13 4 (0.81%) Julia
13 4 (0.81%) T-SQL
14 3 (0.61%) COBOL
15 2 (0.41%) Scala
15 2 (0.41%) VB
15 2 (0.41%) VB.NET
Qualifications
1 66 (13.44%) Security Cleared
2 58 (11.81%) Degree
3 54 (11.00%) SC Cleared
4 30 (6.11%) Computer Science Degree
5 14 (2.85%) Azure Certification
6 9 (1.83%) DV Cleared
7 8 (1.63%) ACCA
8 7 (1.43%) TOGAF Certification
9 6 (1.22%) CIMA
10 5 (1.02%) AWS Certification
11 4 (0.81%) Microsoft Certification
12 3 (0.61%) AWS Certified Solutions Architect
13 2 (0.41%) CISA
13 2 (0.41%) Cisco Certification
13 2 (0.41%) DBS Check
13 2 (0.41%) Master's Degree
14 1 (0.20%) CISM
14 1 (0.20%) GIAC
14 1 (0.20%) MBA
14 1 (0.20%) SAP Certification
Quality Assurance & Compliance
1 53 (10.79%) QA
2 49 (9.98%) Cyber Essentials
3 48 (9.78%) PCI DSS
4 17 (3.46%) GDPR
5 16 (3.26%) Data Quality
6 9 (1.83%) ISO/IEC 27001
7 6 (1.22%) IEC 61508
8 3 (0.61%) Accessibility
8 3 (0.61%) IEC 61131
8 3 (0.61%) ISO 20022
8 3 (0.61%) NCSC
9 2 (0.41%) PMO
10 1 (0.20%) COBIT
10 1 (0.20%) Cyber Essentials PLUS
10 1 (0.20%) Def Stans
10 1 (0.20%) DO-178B
10 1 (0.20%) ISO 15022
10 1 (0.20%) Sarbanes-Oxley
10 1 (0.20%) SLA
System Software
1 61 (12.42%) Active Directory
2 60 (12.22%) Hyper-V
3 48 (9.78%) Terminal Server
4 34 (6.92%) Docker
5 16 (3.26%) VMware Infrastructure
6 9 (1.83%) VMware ESXi
7 8 (1.63%) vSphere
8 6 (1.22%) BitLocker
8 6 (1.22%) Microsoft App-V
8 6 (1.22%) Terminal Services
9 5 (1.02%) HDFS
10 2 (0.41%) Virtual Desktop
11 1 (0.20%) Virtual Machines
11 1 (0.20%) Virtual Servers
Systems Management
1 25 (5.09%) Kubernetes
2 24 (4.89%) Terraform
3 8 (1.63%) Ansible
4 6 (1.22%) Nagios
4 6 (1.22%) Puppet
4 6 (1.22%) vCenter Server
4 6 (1.22%) vMotion
5 2 (0.41%) Grafana
5 2 (0.41%) Microsoft Intune
5 2 (0.41%) Prometheus
6 1 (0.20%) Backup Exec
6 1 (0.20%) FortiGate
6 1 (0.20%) Kibana
6 1 (0.20%) SCOM
6 1 (0.20%) VxRail
Vendors
1 141 (28.72%) Microsoft
2 70 (14.26%) Oracle
3 65 (13.24%) VMware
4 51 (10.39%) Splunk
5 50 (10.18%) SolarWinds
5 50 (10.18%) Veeam
6 48 (9.78%) Brocade
6 48 (9.78%) Nimble Storage
6 48 (9.78%) Tanium
7 41 (8.35%) Google
8 20 (4.07%) Salesforce
9 19 (3.87%) Databricks
10 17 (3.46%) SAP
11 11 (2.24%) Citrix
12 10 (2.04%) IBM
13 8 (1.63%) HP
13 8 (1.63%) Red Hat
14 7 (1.43%) Workday
15 6 (1.22%) Symantec
16 5 (1.02%) Siemens