ISA Server Job Trends in England

Microsoft Internet Security and Acceleration Server
UK > England

The table below provides summary statistics and salary benchmarking for jobs advertised in England requiring ISA Server skills. It covers permanent job vacancies from the 6 months leading up to 28 October 2025, with comparisons to the same periods in the previous two years.

 6 months to
28 Oct 2025		 Same period 2024 Same period 2023
Rank 626 - 688
Rank change year-on-year - - +366
Permanent jobs citing ISA Server 8 0 6
As % of all permanent jobs in England 0.019% - 0.012%
As % of the System Software category 0.17% - 0.073%
Number of salaries quoted 7 0 6
10th Percentile - - -
25th Percentile £63,000 - £76,250
Median annual salary (50th Percentile) £90,000 - £82,500
Median % change year-on-year - - +142.65%
75th Percentile £95,000 - £95,313
90th Percentile £96,000 - £98,250
UK median annual salary £90,000 - £82,500
% change year-on-year - - +142.65%

All System Software Skills
England

ISA Server falls under the System Software category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring system software skills in England.

Permanent vacancies with a requirement for system software skills 4,784 6,870 8,260
As % of all permanent jobs advertised in England 11.13% 11.26% 16.86%
Number of salaries quoted 3,118 3,980 6,819
10th Percentile £27,250 £30,000 £28,500
25th Percentile £31,500 £40,000 £36,500
Median annual salary (50th Percentile) £47,500 £55,000 £55,000
Median % change year-on-year -13.64% - -
75th Percentile £72,500 £75,000 £75,000
90th Percentile £88,750 £95,000 £90,000
UK median annual salary £49,500 £55,000 £55,000
% change year-on-year -10.00% - -

ISA Server
Job Vacancy Trend in England

Historical trend showing the proportion of permanent IT job postings citing ISA Server relative to all permanent IT jobs advertised in England.

ISA Server job vacancy trend in England

ISA Server
Salary Trend in England

Salary distribution trend for jobs in England citing ISA Server.

Salary distribution trend for jobs in England citing ISA Server

ISA Server
Salary Histogram in England

Salary distribution for jobs citing ISA Server in England over the 6 months to 28 October 2025.

Salary histogram for ISA Server in England

ISA Server
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISA Server within the England region over the 6 months to 28 October 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
London - 5 £90,000 -
South East - 3 £66,000 -
ISA Server
UK

ISA Server
Co-Occurring Skills & Capabilities in England 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 3 (37.50%) Exchange Server 2007
1 3 (37.50%) Exchange Server 2010
1 3 (37.50%) Exchange Server 2013
1 3 (37.50%) Microsoft Exchange
1 3 (37.50%) Office Communications Server
1 3 (37.50%) SharePoint
1 3 (37.50%) SharePoint Server
1 3 (37.50%) Skype for Business
2 1 (12.50%) IIS
Applications
1 3 (37.50%) Microsoft Office
Cloud Services
1 5 (62.50%) Azure
Communications & Networking
1 1 (12.50%) DHCP
1 1 (12.50%) DNS
1 1 (12.50%) Firewall
1 1 (12.50%) Wireless
General
1 1 (12.50%) Inclusion and Diversity
Job Titles
1 5 (62.50%) Architect
2 4 (50.00%) Platform Architect
2 4 (50.00%) Technical Architect
3 3 (37.50%) Exchange Engineer
3 3 (37.50%) Exchange Support
3 3 (37.50%) Support Engineer
Miscellaneous
1 3 (37.50%) Replication
Operating Systems
1 8 (100.00%) Windows
2 5 (62.50%) Windows Server
3 3 (37.50%) Windows Server 2003
Processes & Methodologies
1 5 (62.50%) Enterprise Architecture
1 5 (62.50%) IT Strategy
1 5 (62.50%) Roadmaps
2 4 (50.00%) Technical Leadership
2 4 (50.00%) Translating Business Requirements
3 3 (37.50%) Architectural Design
3 3 (37.50%) Business Intelligence
3 3 (37.50%) Content Management
3 3 (37.50%) Enterprise Content Management
3 3 (37.50%) Enterprise Search
4 1 (12.50%) Project Management
4 1 (12.50%) Time Management
Qualifications
1 5 (62.50%) Azure Certification
2 3 (37.50%) DV Cleared
2 3 (37.50%) SC Cleared
2 3 (37.50%) Security Cleared
3 1 (12.50%) DBS Check
3 1 (12.50%) Degree
System Software
1 8 (100.00%) Active Directory
2 1 (12.50%) Forefront TMG
2 1 (12.50%) VMware Infrastructure
Vendors
1 8 (100.00%) Microsoft
2 1 (12.50%) Cisco
2 1 (12.50%) Fortinet
2 1 (12.50%) NetApp
2 1 (12.50%) VMware