# Competences — web developer

Source: ESCO v1.2.1 occupation-skill relations (http://data.europa.eu/esco/occupation/c40a2919-48a9-40ea-b506-1f34f693496d).

## Essential

- **analyse software specifications** (skill/competence)
- **collect customer feedback on applications** (skill/competence)
- **computer programming** (knowledge)
- **content development processes** (knowledge)
- **create flowchart diagram** (skill/competence)
- **debug software** (skill/competence)
- **develop digital content** (skill/competence)
- **develop software prototype** (skill/competence)
- **domain name service** (knowledge)
- **ICT debugging tools** (knowledge)
- **implement front-end website design** (skill/competence)
- **integrated development environment software** (knowledge)
- **interpret technical texts** (skill/competence)
- **Joomla** (knowledge)
- **style sheet languages** (knowledge)
- **tools for software configuration management** (knowledge)
- **translate requirements into visual design** (skill/competence)
- **use an application-specific interface** (skill/competence)
- **use e-services** (skill/competence)
- **use markup languages** (skill/competence)
- **use software design patterns** (skill/competence)
- **use software libraries** (skill/competence)
- **web based collaborative platforms** (knowledge)
- **web programming** (knowledge)
- **web services** (knowledge)
- **World Wide Web Consortium standards** (knowledge)

## Optional

- ABAP (knowledge)
- adapt to changes in technological development plans (skill/competence)
- AJAX (knowledge)
- Ansible (knowledge)
- Apache Maven (knowledge)
- APL (knowledge)
- ASP.NET (knowledge)
- Assembly (computer programming) (knowledge)
- augmented reality (knowledge)
- C# (knowledge)
- C++ (knowledge)
- COBOL (knowledge)
- CoffeeScript (knowledge)
- Common Lisp (knowledge)
- compose description for web elements (skill/competence)
- conduct content quality assurance (skill/competence)
- CSS (knowledge)
- design user interface (skill/competence)
- develop creative ideas (skill/competence)
- Eclipse (integrated development environment software) (knowledge)
- Erlang (knowledge)
- Groovy (knowledge)
- Haskell (knowledge)
- IBM WebSphere (knowledge)
- ICT security legislation (knowledge)
- implement anti-virus software (skill/competence)
- Java (computer programming) (knowledge)
- JavaScript (knowledge)
- JavaScript Framework (knowledge)
- Jenkins (tools for software configuration management) (knowledge)
- JSSS (knowledge)
- KDevelop (knowledge)
- LESS (knowledge)
- Lisp (knowledge)
- MATLAB (knowledge)
- Microsoft Visual C++ (knowledge)
- migrate existing data (skill/competence)
- ML (computer programming) (knowledge)
- Objective-C (knowledge)
- object-oriented modelling (knowledge)
- OpenEdge Advanced Business Language (knowledge)
- Pascal (computer programming) (knowledge)
- Perl (knowledge)
- PHP (knowledge)
- Prolog (computer programming) (knowledge)
- Puppet (tools for software configuration management) (knowledge)
- Python (computer programming) (knowledge)
- R (knowledge)
- Ruby (computer programming) (knowledge)
- Salt (tools for software configuration management) (knowledge)
- SAP R3 (knowledge)
- SAS language (knowledge)
- Sass (knowledge)
- Scala (knowledge)
- Scratch (computer programming) (knowledge)
- Smalltalk (computer programming) (knowledge)
- software anomalies (knowledge)
- SPARK (knowledge)
- STAF (knowledge)
- Swift (computer programming) (knowledge)
- TypeScript (knowledge)
- use automatic programming (skill/competence)
- use concurrent programming (skill/competence)
- use functional programming (skill/competence)
- use logic programming (skill/competence)
- use object-oriented programming (skill/competence)
- use presentation software (skill/competence)
- use query languages (skill/competence)
- use word processing software (skill/competence)
- utilise computer-aided software engineering tools (skill/competence)
- VBScript (knowledge)
- Visual Basic (knowledge)
- web application security threats (knowledge)
- WebCMS (knowledge)
- WildFly (knowledge)
- WordPress (knowledge)
- Xcode (knowledge)

<!-- market-evidence -->

## Market evidence (job-ad analysis, 8 ads, as of 2026-07-20)

Share of analyzed job ads mentioning the item (threshold ≥ 20 %). Source: JSearch/Adzuna APIs.

### Hard skills

- web development — **38 %**
- web application development — **25 %**
- configuration management — **25 %**
- accessibility compliance — **12 %**
- api development — **12 %**
- api integration — **12 %**
- application security — **12 %**
- artificial intelligence — **12 %**
- data analysis — **12 %**
- data cataloging — **12 %**
- data governance — **12 %**
- data modeling — **12 %**
- data protection — **12 %**
- data visualization — **12 %**
- database design — **12 %**
- compliance support — **12 %**
- customer onboarding — **12 %**
- frontend development — **12 %**
- front-end interface design — **12 %**
- graphic design — **12 %**
- incident response — **12 %**
- informational architecture — **12 %**
- web application design — **12 %**
- vulnerability management — **12 %**
- webmaster tools — **12 %**
- websocket programming — **12 %**
- web design — **12 %**
- security patching — **12 %**
- system administration — **12 %**
- system design — **12 %**
- threat mitigation — **12 %**
- threat modeling — **12 %**
- ui application building — **12 %**
- machine learning — **12 %**
- media submission — **12 %**
- metadata management — **12 %**
- natural language processing — **12 %**
- net development — **12 %**
- problem solving — **12 %**
- requirements gathering — **12 %**
- rest api integration — **12 %**
- results visualization — **12 %**
- secure coding practices — **12 %**
- secure software development lifecycle (ssdlc) — **12 %**
- security assessments — **12 %**
- security data analysis — **12 %**
- software development — **12 %**
- software development lifecycle — **12 %**

### Methods

- agile development — **38 %**
- devsecops — **25 %**
- component-based development — **12 %**
- infrastructure as code (IaC) — **12 %**
- file integrity monitoring (fim) — **12 %**
- end-to-end testing — **12 %**
- event-driven architecture — **12 %**
- continuous integration/continuous deployment (CI/CD) — **12 %**
- ci/cd pipelines — **12 %**
- code reviews — **12 %**
- automated deployment pipelines — **12 %**
- backend-for-frontend (BFF) — **12 %**
- backlog refinement — **12 %**
- sprint planning — **12 %**
- section 508 accessibility standards — **12 %**
- mlops — **12 %**
- log analysis — **12 %**
- streaming data pipelines — **12 %**
- workflow methodology — **12 %**

### Responsibilities

- workflow automation — **12 %**
- website management — **12 %**
- web portal enhancement — **12 %**
- web portal sustainment — **12 %**
- vulnerability remediation — **12 %**
- waf configuration — **12 %**
- testable code delivery — **12 %**
- web application maintenance — **12 %**
- request resolution — **12 %**
- system operation — **12 %**
- technical documentation — **12 %**
- technical infrastructure support — **12 %**
- ui development — **12 %**
- usage reporting — **12 %**
- threat modeling — **12 %**
- training development — **12 %**
- media visualization experience creation — **12 %**
- multimedia project management — **12 %**
- production issue support — **12 %**
- performance enhancement — **12 %**
- responsive design implementation — **12 %**
- security event investigation — **12 %**
- security maintenance — **12 %**
- bff development — **12 %**
- bug resolution — **12 %**
- analytics delivery — **12 %**
- application security reviews — **12 %**
- architecture design — **12 %**
- api integration — **12 %**
- application maintenance — **12 %**
- feature implementation — **12 %**
- enhancement support — **12 %**
- data access mechanism implementation — **12 %**
- customer onboarding experience creation — **12 %**
- compliance support — **12 %**
- deployment support — **12 %**

<!-- market-evidence -->