X.509 Contract Job Trends

X.509
UK

The table below provides summary statistics and contractor rates for jobs requiring X.509 skills. It covers contract job vacancies from the 6 months leading up to 17 December 2025, with comparisons to the same periods in the previous two years.

6 months to
17 Dec 2025
Same period 2024 Same period 2023
Rank 586 541 604
Rank change year-on-year -45 +63 +189
Contract jobs citing X.509 1 11 1
As % of all contract jobs in the UK 0.003% 0.032% 0.002%
As % of the Communications & Networking category 0.025% 0.25% 0.017%
Number of daily rates quoted 1 6 0
10th Percentile - £513 -
25th Percentile £625 - -
Median daily rate (50th Percentile) £650 £600 -
Median % change year-on-year +8.33% - -
75th Percentile £675 £694 -
90th Percentile - £725 -
UK excluding London median daily rate £650 £600 -
% change year-on-year +8.33% - -

All Communications and Computer Networking Skills
UK

X.509 falls under the Communications and Computer Networking category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring communications or computer networking skills.

Contract vacancies with a requirement for communications or computer networking skills 3,978 4,361 6,057
As % of all contract IT jobs advertised in the UK 10.81% 12.67% 13.81%
Number of daily rates quoted 2,596 2,554 3,733
10th Percentile £206 £220 £210
25th Percentile £356 £368 £363
Median daily rate (50th Percentile) £475 £500 £500
Median % change year-on-year -5.00% - -
75th Percentile £582 £600 £610
90th Percentile £675 £675 £700
UK excluding London median daily rate £450 £475 £475
% change year-on-year -5.26% - +5.56%
Number of hourly rates quoted 184 151 338
10th Percentile £15.50 £15.22 £17.72
25th Percentile £20.00 £21.93 £22.00
Median hourly rate £35.50 £37.50 £55.00
Median % change year-on-year -5.33% -31.82% +30.49%
75th Percentile £65.00 £62.50 £65.98
90th Percentile £80.00 £73.75 £75.80
UK excluding London median hourly rate £42.50 £41.00 £56.49
% change year-on-year +3.66% -27.42% +25.53%

X.509
Job Vacancy Trend

Historical trend showing the proportion of contract IT job postings citing X.509 relative to all contract IT jobs advertised.

X.509 job vacancy trend in the UK

X.509
Daily Rate Trend

Contractor daily rate distribution trend for jobs in the UK citing X.509.

Contractor daily rate distribution trend for jobs in the UK citing X.509

X.509
Hourly Rate Trend

Contractor hourly rate distribution trend for jobs in the UK citing X.509.

Contractor hourly rate distribution trend for jobs in the UK citing X.509

X.509
Top 4 Contract Job Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing X.509 within the UK over the 6 months to 17 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
England -48 1 £650 +8.33% 1
UK excluding London -65 1 £650 +8.33% 1
North of England - 1 £650 -
North West - 1 £650 -

X.509
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 1 (100.00%) Confluence
Cloud Services
1 1 (100.00%) AWS
1 1 (100.00%) Datadog
1 1 (100.00%) GitHub
1 1 (100.00%) GitHub Actions
Development Applications
1 1 (100.00%) Artifactory
1 1 (100.00%) JIRA
1 1 (100.00%) SpecFlow
Job Titles
1 1 (100.00%) Principal Engineer
1 1 (100.00%) Principal Software Engineer
1 1 (100.00%) Software Engineer
Libraries, Frameworks & Software Standards
1 1 (100.00%) .NET
1 1 (100.00%) AngularJS
1 1 (100.00%) Gherkin
1 1 (100.00%) Playwright
Miscellaneous
1 1 (100.00%) PKI
Processes & Methodologies
1 1 (100.00%) Agile
1 1 (100.00%) API Development
1 1 (100.00%) BDD
1 1 (100.00%) CI/CD
1 1 (100.00%) Coaching
1 1 (100.00%) Continuous Delivery
1 1 (100.00%) Informatics
1 1 (100.00%) Mentoring
1 1 (100.00%) Microservices
1 1 (100.00%) OWASP
1 1 (100.00%) Security Hardening
1 1 (100.00%) Software Engineering
1 1 (100.00%) SOLID
1 1 (100.00%) TDD
1 1 (100.00%) Test Automation
1 1 (100.00%) Unit Testing
Programming Languages
1 1 (100.00%) C#
1 1 (100.00%) JavaScript
System Software
1 1 (100.00%) Docker
Systems Management
1 1 (100.00%) Kubernetes
Vendors
1 1 (100.00%) Atlassian