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 17 May 2025, comparing them to the same period in the previous two years.

6 months to
17 May 2025
Same period 2024 Same period 2023
Rank 116 155 103
Rank change year-on-year +39 -52 +91
Permanent jobs citing Open Source 22 27 133
As % of all permanent jobs advertised in the City of London 1.08% 0.81% 2.90%
As % of the Processes & Methodologies category 1.13% 0.88% 3.04%
Number of salaries quoted 21 15 46
10th Percentile £55,000 £46,743 £61,875
25th Percentile £62,500 £50,250 £72,500
Median annual salary (50th Percentile) £65,000 £70,000 £85,000
Median % change year-on-year -7.14% -17.65% +3.03%
75th Percentile £87,500 £84,375 £100,000
90th Percentile £102,500 £98,750 £106,250
Central London median annual salary £65,000 £70,000 £85,000
% change year-on-year -7.14% -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 1,955 3,074 4,370
As % of all permanent jobs advertised in the City of London 95.97% 91.95% 95.19%
Number of salaries quoted 1,479 2,417 3,651
10th Percentile £41,750 £41,250 £42,750
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 £98,000
90th Percentile £120,000 £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 17 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 2 (9.09%) NServiceBus
Cloud Services
1 3 (13.64%) AWS
1 3 (13.64%) Azure
2 2 (9.09%) Azure Service Bus
2 2 (9.09%) GitHub
2 2 (9.09%) Serverless
3 1 (4.55%) GCP
Communications & Networking
1 1 (4.55%) Firewall
1 1 (4.55%) tcpdump
1 1 (4.55%) Wireshark
Database & Business Intelligence
1 2 (9.09%) Relational Database
1 2 (9.09%) SQL Server
2 1 (4.55%) NoSQL
Development Applications
1 1 (4.55%) Git
1 1 (4.55%) IDA Disassembler
General
1 8 (36.36%) Law
2 5 (22.73%) Finance
3 2 (9.09%) Banking
3 2 (9.09%) Inclusion and Diversity
3 2 (9.09%) Social Skills
4 1 (4.55%) Analytical Skills
Job Titles
1 7 (31.82%) Analyst
1 7 (31.82%) Developer
1 7 (31.82%) Senior
1 7 (31.82%) SOC Analyst
2 5 (22.73%) SOC Engineer
3 3 (13.64%) Senior Developer
3 3 (13.64%) Software Engineer
4 2 (9.09%) .NET Developer
4 2 (9.09%) iOS Developer
4 2 (9.09%) Microsoft Engineer
4 2 (9.09%) Senior Software Engineer
5 1 (4.55%) C++ Developer
5 1 (4.55%) C++ Quantitative Developer
5 1 (4.55%) Electronic Trading C++ Developer
5 1 (4.55%) Electronic Trading Developer
5 1 (4.55%) Front-End Developer (Client-Side Developer)
5 1 (4.55%) Full-Stack Engineer
5 1 (4.55%) Senior Full-Stack Engineer
5 1 (4.55%) Senior iOS Developer
5 1 (4.55%) Technical Trainer
Libraries, Frameworks & Software Standards
1 4 (18.18%) .NET
2 3 (13.64%) CSS
2 3 (13.64%) HTML
3 2 (9.09%) .NET Core
3 2 (9.09%) .NET Framework
3 2 (9.09%) React Native
3 2 (9.09%) Redux
3 2 (9.09%) RESTful
3 2 (9.09%) SwiftUI
3 2 (9.09%) UIKit
4 1 (4.55%) AngularJS
4 1 (4.55%) ASP.NET Web API
4 1 (4.55%) Boost C++ Libraries
4 1 (4.55%) Node.js
4 1 (4.55%) PyTorch
4 1 (4.55%) React
4 1 (4.55%) TensorFlow
Miscellaneous
1 8 (36.36%) CSOC
1 8 (36.36%) Management Information System
1 8 (36.36%) Onboarding
1 8 (36.36%) Virtual Team
2 2 (9.09%) Algorithms
2 2 (9.09%) Greenfield Project
2 2 (9.09%) Mobile App
3 1 (4.55%) Cloud Native
3 1 (4.55%) Cyber Threat
3 1 (4.55%) Data Structures
3 1 (4.55%) Derivative
3 1 (4.55%) Distributed Systems
3 1 (4.55%) Equities
3 1 (4.55%) Fixed Income
3 1 (4.55%) Foreign Exchange (FX)
Operating Systems
1 2 (9.09%) Apple iOS
Processes & Methodologies
1 9 (40.91%) Cybersecurity
1 9 (40.91%) DevOps
1 9 (40.91%) Incident Response
1 9 (40.91%) SIEM
2 8 (36.36%) Architectural Design
2 8 (36.36%) Cyber Threat Intelligence
2 8 (36.36%) Mentoring
2 8 (36.36%) Penetration Testing
2 8 (36.36%) Performance Management
2 8 (36.36%) Protective Monitoring
2 8 (36.36%) Security Monitoring
2 8 (36.36%) Security Operations
2 8 (36.36%) Threat Intelligence
2 8 (36.36%) Trend Analysis
2 8 (36.36%) Use Case
3 7 (31.82%) Agile
4 5 (22.73%) Software Engineering
5 4 (18.18%) Collaborative Culture
5 4 (18.18%) Design Patterns
5 4 (18.18%) TDD
Programming Languages
1 5 (22.73%) C#
1 5 (22.73%) JavaScript
1 5 (22.73%) SQL
2 4 (18.18%) TypeScript
3 3 (13.64%) Python
4 2 (9.09%) Java
4 2 (9.09%) Objective-C
4 2 (9.09%) Swift
5 1 (4.55%) C++
Qualifications
1 8 (36.36%) SC Cleared
1 8 (36.36%) Security Cleared
2 2 (9.09%) Degree
3 1 (4.55%) AWS Certification
System Software
1 1 (4.55%) Docker
Systems Management
1 8 (36.36%) QRadar
2 2 (9.09%) Terraform
3 1 (4.55%) Computer Emergency Response Teams
3 1 (4.55%) Kubernetes
Vendors
1 10 (45.45%) Microsoft
2 1 (4.55%) Google