Open Source Jobs in the City of London

Open Source
Central London > City of London

The table below provides summary statistics for permanent job vacancies advertised in the City of London requiring Open Source skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited Open Source over the 6 months leading up to 28 May 2025, comparing them to the same period in the previous two years.

6 months to
28 May 2025
Same period 2024 Same period 2023
Rank 123 150 108
Rank change year-on-year +27 -42 +95
Permanent jobs citing Open Source 16 27 128
As % of all permanent jobs advertised in the City of London 0.84% 0.81% 2.81%
As % of the Processes & Methodologies category 0.87% 0.88% 2.95%
Number of salaries quoted 15 15 45
10th Percentile £49,000 £46,743 £63,000
25th Percentile £61,875 £50,250 £72,500
Median annual salary (50th Percentile) £80,000 £70,000 £85,000
Median % change year-on-year +14.29% -17.65% +6.25%
75th Percentile £93,125 £87,500 £100,000
90th Percentile £131,000 £98,750 £106,250
Central London median annual salary £80,000 £70,000 £85,000
% change year-on-year +14.29% -17.65% +6.25%

All Process and Methodology Skills
City of London

Open Source falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring process or methodology skills in the City of London.

Permanent vacancies with a requirement for process or methodology skills 1,838 3,064 4,337
As % of all permanent jobs advertised in the City of London 96.23% 91.65% 95.19%
Number of salaries quoted 1,383 2,397 3,613
10th Percentile £42,100 £41,315 £42,800
25th Percentile £53,750 £55,000 £56,250
Median annual salary (50th Percentile) £75,000 £75,000 £75,000
Median % change year-on-year - - +3.45%
75th Percentile £97,500 £95,000 £98,750
90th Percentile £122,500 £112,500 £115,000
Central London median annual salary £75,000 £72,500 £75,000
% change year-on-year +3.45% -3.33% +3.45%

Open Source
Job Vacancy Trend in the City of London

Job postings citing Open Source as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Open Source in the City of London

Open Source
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing Open Source in the City of London.

Salary trend for Open Source in the City of London

Open Source
Salary Histogram in the City of London

Salary distribution for jobs citing Open Source in the City of London over the 6 months to 28 May 2025.

Salary histogram for Open Source in the City of London

Open Source
Co-occurring Skills and Capabilities in the City of London 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 1 (6.25%) NServiceBus
Cloud Services
1 2 (12.50%) AWS
1 2 (12.50%) GitHub
1 2 (12.50%) Serverless
2 1 (6.25%) Azure
2 1 (6.25%) Azure Service Bus
Communications & Networking
1 1 (6.25%) Firewall
1 1 (6.25%) tcpdump
1 1 (6.25%) Wireshark
Database & Business Intelligence
1 1 (6.25%) MongoDB
1 1 (6.25%) NoSQL
1 1 (6.25%) PostgreSQL
1 1 (6.25%) Relational Database
1 1 (6.25%) SQL Server
Development Applications
1 1 (6.25%) Git
1 1 (6.25%) IDA Disassembler
General
1 5 (31.25%) Finance
2 3 (18.75%) Law
3 2 (12.50%) Banking
3 2 (12.50%) Inclusion and Diversity
Job Titles
1 7 (43.75%) Developer
2 6 (37.50%) Senior
3 3 (18.75%) Analyst
3 3 (18.75%) Senior Developer
3 3 (18.75%) SOC Analyst
3 3 (18.75%) SOC Engineer
3 3 (18.75%) Software Engineer
4 2 (12.50%) .NET Developer
4 2 (12.50%) iOS Developer
4 2 (12.50%) Senior Software Engineer
5 1 (6.25%) C++ Developer
5 1 (6.25%) C++ Quantitative Developer
5 1 (6.25%) Enterprise Architect
5 1 (6.25%) Front-End Developer (Client-Side Developer)
5 1 (6.25%) Java Developer
5 1 (6.25%) Microsoft Engineer
5 1 (6.25%) Quantitative Developer
5 1 (6.25%) Senior Front-End Developer
5 1 (6.25%) Senior iOS Developer
5 1 (6.25%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 3 (18.75%) .NET
2 2 (12.50%) .NET Framework
2 2 (12.50%) CSS
2 2 (12.50%) HTML
2 2 (12.50%) Node.js
2 2 (12.50%) React Native
2 2 (12.50%) Redux
2 2 (12.50%) RESTful
2 2 (12.50%) SwiftUI
2 2 (12.50%) UIKit
3 1 (6.25%) .NET Core
3 1 (6.25%) AngularJS
3 1 (6.25%) ASP.NET Web API
3 1 (6.25%) Boost C++ Libraries
3 1 (6.25%) Kafka
3 1 (6.25%) React
Miscellaneous
1 3 (18.75%) CSOC
1 3 (18.75%) Management Information System
1 3 (18.75%) Onboarding
1 3 (18.75%) Virtual Team
2 2 (12.50%) Algorithms
2 2 (12.50%) Cloud Native
2 2 (12.50%) Greenfield Project
2 2 (12.50%) Mobile App
3 1 (6.25%) Cyber Threat
3 1 (6.25%) Data Structures
3 1 (6.25%) Derivative
3 1 (6.25%) Distributed Systems
3 1 (6.25%) Equities
3 1 (6.25%) Fixed Income
3 1 (6.25%) Foreign Exchange (FX)
Operating Systems
1 2 (12.50%) Apple iOS
Processes & Methodologies
1 7 (43.75%) Agile
2 5 (31.25%) Software Engineering
3 4 (25.00%) Collaborative Culture
3 4 (25.00%) Cybersecurity
3 4 (25.00%) DevOps
3 4 (25.00%) Incident Response
3 4 (25.00%) SIEM
3 4 (25.00%) TDD
4 3 (18.75%) Architectural Design
4 3 (18.75%) Cyber Threat Intelligence
4 3 (18.75%) Design Patterns
4 3 (18.75%) Full-Stack Development
4 3 (18.75%) Mentoring
4 3 (18.75%) Protective Monitoring
4 3 (18.75%) Security Monitoring
4 3 (18.75%) Security Operations
4 3 (18.75%) Threat Intelligence
4 3 (18.75%) Trend Analysis
4 3 (18.75%) Unit Testing
4 3 (18.75%) Use Case
Programming Languages
1 4 (25.00%) C#
1 4 (25.00%) JavaScript
1 4 (25.00%) SQL
1 4 (25.00%) TypeScript
2 3 (18.75%) Java
2 3 (18.75%) Python
3 2 (12.50%) Objective-C
3 2 (12.50%) Swift
4 1 (6.25%) C++
4 1 (6.25%) Go
4 1 (6.25%) Kotlin
Qualifications
1 3 (18.75%) SC Cleared
1 3 (18.75%) Security Cleared
2 2 (12.50%) Degree
System Software
1 1 (6.25%) Docker
Systems Management
1 3 (18.75%) QRadar
1 3 (18.75%) Terraform
2 2 (12.50%) Kubernetes
3 1 (6.25%) Computer Emergency Response Teams
Vendors
1 4 (25.00%) Microsoft