API Development Skills (Windows and ASP.NET)
Ability to develop APIs using Windows and ASP.NET frameworks.
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Skill demand · ONS UK online job adverts
This requirement appears in 1.2% of UK new online job adverts in 2025. Its share rose by 0.4 percentage points compared with 2024.
The latest year is partial. Comparisons with full years need care. 2026 figures have not been published yet.Official detailed requirements in this ONS group
Ability to develop APIs using Windows and ASP.NET frameworks.
Ability to design RESTful APIs for scalable and efficient web services.
Ability to develop web applications and Service-Oriented Architecture solutions.
Ability to design APIs and implement gateways for secure and managed access.
Designing systems that respond to events for real-time processing.
Ability to develop tools for describing and documenting APIs.
Develop batch files and manage batch message processing for automated workflows.
Skill in using add-ins and sharing tools to enhance application functionality.
Ability to serialize structured data for storage or transmission.
Skill in creating messaging frameworks for application communication.
Ability to develop applications using web services frameworks for interoperability.
Ability to develop messaging bus systems using .NET technologies.
ONS Table 1 detailed requirements · SCO19.14. Shares can overlap because an advert may mention several requirements.
Occupations where integration and ci/cd appears most often in UK new adverts
| # | Occupation | Share of occupation adverts | View |
|---|---|---|---|
| 1 | Programmers and software development professionals Example titles: Software developer · IT analyst · Team leader · BI developer | 36.8% | |
| 2 | IT quality and testing professionals Example titles: Quality analyst · Test lead · IT auditor · Qa engineer | 29.2% | |
| 3 | Print finishing and binding workers Example titles: Print colourer · Dis hand · Table man · Gilt edger | 24.8% | |
| 4 | IT business analysts, architects and systems designers Example titles: System analyst · Ai scientist · Bi architect · IT architect | 17.6% | |
| 5 | IT network professionals Example titles: Network analyst · Network planner · Network designer · Network engineer | 11.4% | |
| 6 | Mechanical engineers Example titles: Mechanical engineer · Mill engineer · Naval designer · Chief inspector | 10.3% | |
| 7 | Information technology professionals n.e.c. Example titles: Information technology consultant · IT planner · Web master · Web manager | 9.8% | |
| 8 | Computer system and equipment installers and servicers Example titles: Computer systems installer · IT engineer · Field engineer · Computer repairer | 9.7% | |
| 9 | Architects Example titles: Architect · Formwork designer · Project architect · Landscape designer | 6.6% | |
| 10 | Information technology directors Example titles: Technology director · IT director · Programme manager · Head of IT | 6.4% |
Skills within Information Technology and Cloud Infrastructure
| # | Skill | Share of adverts | Change (pp) | View |
|---|---|---|---|---|
| 1 | Information Technology and Programming Data Warehousing and Business Intelligence · Networking Fundamentals · Agile Practice Skills | 43.8% | +1.8 pp | |
| 2 | Enterprise IT and Process Management Corrective and Preventive Action Process Skills · Excellence Framework Design · Evaluation Methodologies | 2.3% | +0.5 pp | |
| 3 | Integration and CI/CD Selected skill · API Development Skills (Windows and ASP.NET) · RESTful API Design Skills · Web and SOA Development Skills | 1.2% | +0.4 pp | |
| 4 | IT Operations IT Service Management and Enterprise Tools · Monitoring and Observability Tools · Notification Systems and Alert Technologies | 1.1% | +0.1 pp | |
| 5 | Enterprise, Operating Systems and Distributed Systems Backend System Development Skills · Core Framework Development Skills · Development Support Processes | 1.0% | +0.2 pp | |
| 6 | Cloud Platforms and Services Containerization and Orchestration · Telecom and Cloud Engineering · Amazon S3 and Boto3 Skills | 0.8% | +0.3 pp | |
| 7 | Technical Documentation and Services General Office · Technical Services · Productivity and Office Tools | 0.8% | -0.2 pp | |
| 8 | IT Infrastructure Data Centre Networking Technology Knowledge · DNS Concept Knowledge · Networking Architecture and Security Development | 0.7% | +0.1 pp | |
| 9 | DevOps, Automation and Software Delivery Ansible Development and Administration Skills · Deployment Automation and Release Orchestration · Inorganic Salt Properties and Automation Tools | 0.2% | +0.1 pp | |
| 10 | Cloud and IT Infrastructure Virtualization Platforms · CompTIA Certifications and IT Fundamentals · OpenStack Block Storage Management | 0.2% | 0.0 pp | |
| 11 | Cloud Platforms and DevOps Cloud Infrastructure and Automation · Container Platform and Kubernetes Skills · Cloud Application Platforms | 0.2% | +0.1 pp | |
| 12 | Cloud Platforms and Virtualization VMware Virtualization · DCV Visualization Expertise | 0.2% | 0.0 pp | |
| 13 | Enterprise Collaboration and Productivity Project Management and Collaboration Platforms · File Sharing and Collaboration Tools · Team Communication Platforms | 0.1% | +0.1 pp | |
| 14 | Enterprise IT and Architecture DoD Architecture Framework Skills (TAFIM) · Reference Architecture Implementation Skills · IT Service Management Frameworks | 0.1% | 0.0 pp | |
| 15 | Proxy Systems Proxy Servers and Network Security Solutions · Nginx Server Management Skills | 0.0% | 0.0 pp | |
| 16 | Cloud Platforms and Container Services AWS Fargate Utilization · AWS EKS Skills | 0.0% | 0.0 pp | |
| 17 | Compute and Infrastructure Virtualization Skills (KVM Hypervisor) · Enterprise Server Management Skills · Virtualization Management Skills (SCVMM) | 0.0% | 0.0 pp | |
| 18 | Operating Systems and IT Infrastructure IBM AIX Operating System Administration | 0.0% | 0.0 pp | |
| 19 | Salesforce Ecosystem DevOps Platform Skills | 0.0% | 0.0 pp | |
| 20 | Mainframe and Enterprise Systems Mainframe Clustering Techniques | 0.0% | 0.0 pp | |
| 21 | End-User Computing and Unified Endpoint Management Endpoint and Patch Management Skills | 0.0% | 0.0 pp | |
| 22 | Operating Systems File Management Tools | 0.0% | 0.0 pp | |
| 23 | Internet Services Privacy-Focused Search Engine Platforms | 0.0% | 0.0 pp | |
| 24 | IT Governance and Service Management Business Information Management Framework Skills | 0.0% | 0.0 pp | |
| 25 | Operating Systems and Networking | 0.0% | 0.0 pp | |
| 26 | Operating Systems and Desktop Environments | 0.0% | 0.0 pp | |
| 27 | IT Systems and Device Management | 0.0% | 0.0 pp |
How to interpret skill demand
Source: Office for National Statistics, UK online job adverts. Shares describe new adverts reporting the requirement. An advert may mention several skills, so their shares do not add up to 100%. A rise from 10% to 12% is an increase of 2 percentage points.
These figures do not establish a salary premium, proficiency level, or which skills are requested together. This page has no published skill-specific salary or location breakdown.
ONS · 2025 · partial year · 2026 figures have not been published yet. · Open Government Licence v3.0. ONS does not endorse Jobmundo.