Senior Web Developer

Catena

. Develop, maintain, and optimize websites and web applications for high performance and scalability .

Posted 10/12/2026full-timeGzira • MaltaSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Proficient in developing and optimizing high-performance websites and web applications using JavaScript, TypeScript, PHP, HTML5, and CSS3. Strong experience in website performance tuning, technical SEO best practices, and collaboration with cross-functional teams.

Highest-signal resume keywords

JavaScript ProficiencyWebsite Performance OptimizationREST API ExperienceTechnical SEO KnowledgeGit Version Control

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

JavaScriptTypeScriptPHPHTML5CSS3MySQLCore Web Vitals OptimizationAI-Driven DevelopmentWordPress DevelopmentJavaScript Frameworks

Soft Skills

Problem-SolvingCommunicationCollaboration

Tools & Technologies

GitHubCI/CD PipelinesCloudflareAWSCDN Management

Industry Keywords

Web DevelopmentFrontend DevelopmentFull-Stack DevelopmentCaching StrategiesTechnical Guidance

Tech Stack

Tools & technologies

AWSJavaScriptMySQLNext.jsPHPReactTypeScriptWordPress

About the role

Key responsibilities & impact

Develop, maintain, and optimize websites and web applications for high performance and scalability
Build reusable components, themes, and plugins with best practices in security, accessibility, and maintainability
Optimize websites for performance and SEO, including improvements to Core Web Vitals
Write clean, efficient, and well-documented JavaScript/TypeScript, PHP, HTML5, and CSS3 code
Conduct code reviews and provide technical guidance to team members
Use Git for version control and collaborate through GitHub or similar tools, including CI/CD pipelines
Troubleshoot and resolve complex technical issues across different environments
Use AI-driven development with company-supplied AI agents such as Claude and Codex
Stay current with web technologies and frameworks and adopt new tools
Work with DevOps teams to manage hosting, CDNs, and caching solutions
Develop integrations between websites and third-party platforms and tools
Collaborate closely with the Tech Lead, Web Dev Manager, and cross-functional team

Requirements

What you’ll need

4+ years of experience in frontend or full-stack web development
Experience building and shipping production websites or web applications, including custom themes, plugins, or components
Experience working with REST APIs
Proficiency in JavaScript, HTML5, CSS3, PHP, and MySQL
Experience with website performance tuning and optimization strategies, including Core Web Vitals
Familiarity with technical SEO best practices would be considered an asset
Knowledge of caching strategies, including CDNs and application-level caching would be considered an asset
Familiarity with infrastructure platforms like Cloudflare, AWS, and other hosting solutions
Strong problem-solving skills and ability to work independently
Experience with JavaScript frameworks and libraries such as React, Next.js, or NestJS would be considered an asset
Experience with WordPress themes and plugins is nice to have, but not required
Working knowledge of AI as a day-to-day workflow, using company-supplied AI agents such as Claude and Codex to plan, write, test, and review code, and for research, debugging, learning, and planning
Excellent communication and collaboration skills

Benefits

Comp & perks

Company-supplied AI agents such as Claude and Codex
Hybrid work arrangement