C Contracts

C
UK

The table below provides summary statistics for contract job vacancies requiring C skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited C over the 6 months leading up to 30 April 2025, comparing them to the same period in the previous two years.

6 months to
30 Apr 2025
Same period 2024 Same period 2023
Rank 346 189 241
Rank change year-on-year -157 +52 +140
Contract jobs citing C 178 549 662
As % of all contract jobs advertised in the UK 0.61% 1.26% 1.11%
As % of the Programming Languages category 1.79% 4.27% 3.17%
Number of daily rates quoted 72 231 329
10th Percentile £270 £325 £375
25th Percentile £334 £450 £465
Median daily rate (50th Percentile) £484 £535 £563
Median % change year-on-year -9.63% -4.89% -2.17%
75th Percentile £625 £588 £675
90th Percentile £675 £688 £775
UK excluding London median daily rate £413 £538 £500
% change year-on-year -23.33% +7.60% -
Number of hourly rates quoted 40 189 119
10th Percentile £54.70 £46.25 £37.80
25th Percentile £61.50 £59.00 £48.13
Median hourly rate £68.00 £65.00 £58.50
Median % change year-on-year +4.62% +11.11% +6.36%
75th Percentile £85.00 £70.00 £65.00
90th Percentile £87.50 £85.00 £75.25
UK excluding London median hourly rate £68.00 £65.00 £65.00
% change year-on-year +4.62% - +16.07%

All Programming Languages
UK

C falls under the Programming Languages category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring coding skills.

Contract vacancies with a requirement for coding skills 9,942 12,854 20,901
As % of all contract IT jobs advertised in the UK 34.01% 29.49% 35.02%
Number of daily rates quoted 6,743 9,130 15,092
10th Percentile £360 £350 £400
25th Percentile £419 £425 £463
Median daily rate (50th Percentile) £525 £525 £550
Median % change year-on-year - -4.55% -
75th Percentile £638 £650 £675
90th Percentile £769 £760 £780
UK excluding London median daily rate £475 £489 £500
% change year-on-year -2.86% -2.20% +3.09%
Number of hourly rates quoted 245 485 471
10th Percentile £22.49 £31.25 £26.25
25th Percentile £33.91 £46.25 £50.00
Median hourly rate £62.50 £60.50 £60.70
Median % change year-on-year +3.31% -0.33% +21.40%
75th Percentile £68.00 £70.00 £70.00
90th Percentile £85.00 £78.75 £77.00
UK excluding London median hourly rate £63.87 £62.50 £62.50
% change year-on-year +2.20% - +26.21%

C
Job Vacancy Trend

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

Job vacancy trend for C in the UK

C
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing C.

Daily rate trend for C in the UK

C
Daily Rate Histogram

Daily rate distribution for jobs citing C over the 6 months to 30 April 2025.

Daily rate histogram for C in the UK

C
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing C.

Hourly rate trend for C in the UK

C
Hourly Rate Histogram

Hourly rate distribution of jobs citing C over the 6 months to 30 April 2025.

Hourly rate histogram for C in the UK

C
Top 14 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing C within the UK over the 6 months to 30 April 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 -159 149 £500 -6.54% 849
UK excluding London -148 89 £413 -23.33% 746
London +18 64 £525 +16.67% 183
Work from Home -49 60 £500 -6.54% 593
East of England -28 34 £400 -27.27% 121
South West -17 21 £600 - 94
Scotland +5 12 £285 -42.28% 66
South East -39 12 £500 - 188
East Midlands +12 5 £168 -71.61% 55
Midlands -31 5 £168 -68.69% 124
North of England +14 3 - - 140
Yorkshire +14 2 - - 62
Wales +6 2 £525 - 27
North East -5 1 - - 24

C
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 14 (7.87%) Apache Spark
1 14 (7.87%) Confluence
2 2 (1.12%) Oracle Workflow
2 2 (1.12%) Tomcat
3 1 (0.56%) Apache
3 1 (0.56%) Ethereum
3 1 (0.56%) Hyperledger
3 1 (0.56%) MetaMask
3 1 (0.56%) SAS
Applications
1 16 (8.99%) Simulink
2 3 (1.69%) Microsoft Excel
3 1 (0.56%) CANalyzer
Business Applications
1 5 (2.81%) BASE24
2 2 (1.12%) LabWindows
2 2 (1.12%) Oracle Applications
2 2 (1.12%) Oracle Assets
2 2 (1.12%) Oracle Cash Management
2 2 (1.12%) Oracle EBS
2 2 (1.12%) Oracle EBS R12
2 2 (1.12%) Oracle E-Business Tax
2 2 (1.12%) Oracle General Ledger
2 2 (1.12%) Oracle Internet Expenses
2 2 (1.12%) Oracle iProcurement
2 2 (1.12%) Oracle Payables
2 2 (1.12%) Oracle Receivables
2 2 (1.12%) Oracle Subledger Accounting
3 1 (0.56%) R3 Corda
3 1 (0.56%) SAP CX
3 1 (0.56%) SAP Hybris
3 1 (0.56%) SAP S/4HANA
Cloud Services
1 28 (15.73%) AWS
2 18 (10.11%) Azure
3 11 (6.18%) GCP
4 3 (1.69%) Amazon CloudWatch
4 3 (1.69%) Datadog
5 2 (1.12%) Cloud Computing
5 2 (1.12%) Entra ID
5 2 (1.12%) GitHub
6 1 (0.56%) Apple Pay
6 1 (0.56%) Azure DevOps
6 1 (0.56%) Azure ExpressRoute
6 1 (0.56%) Azure Key Vault
6 1 (0.56%) Dynamics 365
6 1 (0.56%) GitHub Actions
6 1 (0.56%) OpenShift
6 1 (0.56%) SAP Commerce Cloud
Communications & Networking
1 8 (4.49%) SSL
2 6 (3.37%) DHCP
2 6 (3.37%) DOCSIS
2 6 (3.37%) TCP/IP
2 6 (3.37%) Wi-Fi
3 5 (2.81%) ATM
3 5 (2.81%) HTTPS
3 5 (2.81%) SSH
3 5 (2.81%) Wireless
4 4 (2.25%) DNS
4 4 (2.25%) SpaceWire
5 3 (1.69%) 3GPP
5 3 (1.69%) Broadband
5 3 (1.69%) Ethernet
5 3 (1.69%) GPON
5 3 (1.69%) IPv4
5 3 (1.69%) IPv6
5 3 (1.69%) Network Security
5 3 (1.69%) PPP
5 3 (1.69%) VoIP
Database & Business Intelligence
1 12 (6.74%) Oracle Database
2 8 (4.49%) Data Mining
3 7 (3.93%) Big Data
4 5 (2.81%) NonStop SQL
5 4 (2.25%) RDBMS
5 4 (2.25%) Relational Database
6 3 (1.69%) Elasticsearch
6 3 (1.69%) InfluxDB
6 3 (1.69%) Looker
6 3 (1.69%) MongoDB
7 2 (1.12%) Oracle Reports
7 2 (1.12%) SQL Server
8 1 (0.56%) Hadoop
8 1 (0.56%) NoSQL
8 1 (0.56%) PostgreSQL
8 1 (0.56%) Text Mining
Development Applications
1 25 (14.04%) Git
2 15 (8.43%) JIRA
3 12 (6.74%) Subversion
4 11 (6.18%) Oracle Forms
4 11 (6.18%) PVCS
5 6 (3.37%) Rational DOORS
6 5 (2.81%) Jenkins
7 3 (1.69%) Eclipse
8 2 (1.12%) Burp Suite
8 2 (1.12%) Gerrit
8 2 (1.12%) Introscope
8 2 (1.12%) LabVIEW
8 2 (1.12%) LoadRunner
8 2 (1.12%) Metasploit
8 2 (1.12%) NetBeans
8 2 (1.12%) VectorCAST
9 1 (0.56%) Bitbucket
9 1 (0.56%) GitLab
9 1 (0.56%) Hardhat
9 1 (0.56%) Rational Team Concert
General
1 39 (21.91%) Social Skills
2 27 (15.17%) Finance
3 24 (13.48%) Analytical Skills
4 11 (6.18%) Aerospace
5 8 (4.49%) Banking
6 7 (3.93%) Financial Institution
7 6 (3.37%) Public Sector
8 5 (2.81%) Electronics
8 5 (2.81%) Manufacturing
8 5 (2.81%) Marketing
8 5 (2.81%) Telecoms
9 3 (1.69%) Automotive
9 3 (1.69%) Aviation
9 3 (1.69%) Investment Banking
9 3 (1.69%) Military
9 3 (1.69%) Organisational Skills
10 2 (1.12%) Avionics
10 2 (1.12%) Documentation Skills
10 2 (1.12%) General Ledger
11 1 (0.56%) Dutch Language
Job Titles
1 33 (18.54%) Software Engineer
2 26 (14.61%) Developer
3 23 (12.92%) Senior
4 18 (10.11%) Design Engineer
5 15 (8.43%) Lead
6 13 (7.30%) Embedded Engineer
6 13 (7.30%) FPGA Design Engineer
6 13 (7.30%) FPGA Engineer
6 13 (7.30%) Machine Learning Engineer
7 11 (6.18%) Oracle Developer
7 11 (6.18%) Support Engineer
8 10 (5.62%) Embedded Software Engineer
9 9 (5.06%) Product Engineer
9 9 (5.06%) Products Support Engineer
9 9 (5.06%) Software Support Engineer
10 8 (4.49%) Architect
10 8 (4.49%) Linux Engineer
11 7 (3.93%) Linux Support
11 7 (3.93%) Senior Software Engineer
11 7 (3.93%) Verification Engineer
Libraries, Frameworks & Software Standards
1 13 (7.30%) Middleware
2 11 (6.18%) Java EE
3 7 (3.93%) POSIX
3 7 (3.93%) Ray
4 6 (3.37%) Yocto
5 5 (2.81%) Elastic Stack
6 4 (2.25%) .NET
6 4 (2.25%) Web Services
6 4 (2.25%) XML
7 3 (1.69%) 802.1X
8 2 (1.12%) EntireX
8 2 (1.12%) HTML
8 2 (1.12%) J2EE
8 2 (1.12%) React
9 1 (0.56%) Flask
9 1 (0.56%) JSON
9 1 (0.56%) Motif
9 1 (0.56%) scikit-learn
9 1 (0.56%) Servlets
9 1 (0.56%) Spring
Miscellaneous
1 19 (10.67%) Algorithms
2 18 (10.11%) Embedded Systems
3 17 (9.55%) Distributed Systems
3 17 (9.55%) FPGA
4 16 (8.99%) Verilog
5 15 (8.43%) VHDL
6 13 (7.30%) Distributed Computing
7 9 (5.06%) Device Driver
7 9 (5.06%) IoT
8 8 (4.49%) Hedge funds
9 6 (3.37%) Data Structures
9 6 (3.37%) Tandem
10 5 (2.81%) Data Protection Act
10 5 (2.81%) Enterprise Software
10 5 (2.81%) Onboarding
10 5 (2.81%) STB
11 4 (2.25%) Digital TV
11 4 (2.25%) Mainframe
11 4 (2.25%) PCIe
12 3 (1.69%) ASIC
Operating Systems
1 65 (36.52%) Linux
2 20 (11.24%) Unix
3 16 (8.99%) Windows
4 11 (6.18%) Ubuntu
5 5 (2.81%) FreeRTOS
6 4 (2.25%) Embedded Linux
7 3 (1.69%) VxWorks
8 2 (1.12%) AIX
8 2 (1.12%) Android
8 2 (1.12%) OpenVMS
8 2 (1.12%) OpenWrt
8 2 (1.12%) VMS
9 1 (0.56%) Windows Server
Processes & Methodologies
1 48 (26.97%) Software Engineering
2 27 (15.17%) Problem-Solving
3 26 (14.61%) Agile
4 22 (12.36%) CI/CD
5 21 (11.80%) Technical Leadership
6 18 (10.11%) Machine Learning
7 17 (9.55%) Computer Science
7 17 (9.55%) Signal Processing
8 16 (8.99%) Artificial Intelligence
9 15 (8.43%) Algorithmic Trading
9 15 (8.43%) Electronic Trading
9 15 (8.43%) UVM
10 14 (7.87%) Deep Learning
10 14 (7.87%) Market Making
10 14 (7.87%) Unit Testing
11 13 (7.30%) Cryptography
11 13 (7.30%) Data Modelling
11 13 (7.30%) FPGA Design
12 12 (6.74%) Continuous Deployment
12 12 (6.74%) Continuous Integration
Programming Languages
1 84 (47.19%) C++
2 66 (37.08%) Java
3 61 (34.27%) Python
4 34 (19.10%) Shell Script
5 23 (12.92%) SQL
6 17 (9.55%) JavaScript
7 15 (8.43%) SystemVerilog
8 13 (7.30%) Embedded C
8 13 (7.30%) PL/SQL
9 12 (6.74%) Ada
10 11 (6.18%) ProC
11 10 (5.62%) Go
12 8 (4.49%) ActionScript
12 8 (4.49%) ActionScript 2.0
13 7 (3.93%) Assembly Language
13 7 (3.93%) Rust
14 6 (3.37%) Tcl
15 5 (2.81%) COBOL
15 5 (2.81%) MATLAB
16 4 (2.25%) C#
Qualifications
1 41 (23.03%) Degree
2 23 (12.92%) Security Cleared
3 16 (8.99%) Master's Degree
4 14 (7.87%) SC Cleared
5 13 (7.30%) PhD
6 6 (3.37%) DV Cleared
7 5 (2.81%) Computer Science Degree
8 4 (2.25%) OSCP
9 3 (1.69%) AWS Certification
9 3 (1.69%) BPSS Clearance
10 2 (1.12%) CEH
10 2 (1.12%) GPEN
10 2 (1.12%) GWAPT
10 2 (1.12%) OSCE
Quality Assurance & Compliance
1 6 (3.37%) QA
2 5 (2.81%) GDPR
3 4 (2.25%) DO-178B
3 4 (2.25%) PCI DSS
4 3 (1.69%) HIPAA
4 3 (1.69%) ISO 8583
5 2 (1.12%) ISO 26262
5 2 (1.12%) MISRA
5 2 (1.12%) MISRA C
5 2 (1.12%) Software Quality Assurance
6 1 (0.56%) Data Quality
6 1 (0.56%) IEC 61508
6 1 (0.56%) MIL-STD-1553
6 1 (0.56%) NIST
6 1 (0.56%) PSD2
System Software
1 9 (5.06%) Firmware
2 4 (2.25%) Docker
2 4 (2.25%) Embedded Firmware
3 3 (1.69%) Active Directory
4 2 (1.12%) QEMU
4 2 (1.12%) VMware Infrastructure
5 1 (0.56%) Hyper-V
5 1 (0.56%) KVM
5 1 (0.56%) VMware NSX
5 1 (0.56%) vSphere
5 1 (0.56%) Xen
5 1 (0.56%) XYGATE
Systems Management
1 7 (3.93%) Kubernetes
2 4 (2.25%) Grafana
3 3 (1.69%) Terraform
4 2 (1.12%) Ansible
4 2 (1.12%) CA Wily
4 2 (1.12%) Istio
5 1 (0.56%) Functional Safety
5 1 (0.56%) Prometheus
5 1 (0.56%) Single Sign-On
5 1 (0.56%) WMI
5 1 (0.56%) ZABBIX
Vendors
1 15 (8.43%) Oracle
2 14 (7.87%) Intel
3 13 (7.30%) Microsemi
3 13 (7.30%) Xilinx
4 11 (6.18%) Red Hat
5 10 (5.62%) Microsoft
6 7 (3.93%) HP
6 7 (3.93%) IBM
6 7 (3.93%) Splunk
7 6 (3.37%) SAP
8 5 (2.81%) IBM Sterling
9 3 (1.69%) Google
9 3 (1.69%) TOWER Software
9 3 (1.69%) VMware
10 2 (1.12%) Atlassian
10 2 (1.12%) EMC
10 2 (1.12%) Fujitsu
10 2 (1.12%) Hitachi
10 2 (1.12%) QNX
10 2 (1.12%) Software AG