Senior Web Developer
Catena Media is seeking an experienced Senior Web Developer to play a key role in building, optimising, and maintaining its portfolio of websites and web applications. The role involves working very closely with the Tech Lead and Web Dev Manager, contributing to technical decisions and ensuring that websites are fast, scalable, and secure.
The ideal candidate is a skilled problem-solver with strong frontend or full-stack experience and a focus on performance. Catena Media expects the successful applicant to collaborate with a cross-functional team to implement best practices and new technologies effectively.
- Develop, maintain, and optimise websites and web applications, ensuring high performance and scalability.
- Build reusable components, themes, and plugins, ensuring best practices in security, accessibility, and maintainability.
- Optimise websites for performance and SEO, while including improvements to Core Web Vitals.
- Write clean, efficient, and well-documented code in JavaScript/TypeScript, PHP, HTML5, and CSS3.
- Conduct code reviews and provide technical guidance to team members.
- Work with Git for version control and collaborate using GitHub or similar tools, including CI/CD pipelines.
- Troubleshoot and resolve complex technical issues across different environments.
- Use AI-driven development day to day, working with company-supplied AI agents such as Claude and Codex to speed up delivery while keeping quality high.
- Stay up to date with the latest web technologies and frameworks, and adopt new tools as they emerge.
- Work with DevOps teams to manage hosting, CDNs, and caching solutions for optimal website performance.
- Develop integrations for websites with 3rd-party platforms and tools.
- 4+ years of experience in frontend or full-stack web development (required).
- Solid experience building and shipping production websites or web applications, including custom themes, plugins, or components, and working with REST APIs (required).
- Proficiency in JavaScript, HTML5, CSS3, PHP, and MySQL (required).
- Experience with performance tuning and optimisation strategies for websites, including Core Web Vitals (required).
- Familiarity with technical SEO best practices (preferred).
- Knowledge of caching strategies, including CDNs and application-level caching (preferred).
- Familiarity with infrastructure platforms like Cloudflare, AWS, and other hosting solutions (required).
- Strong problem-solving skills and ability to work independently (required).
- Experience with JavaScript frameworks and libraries such as React, Next.js, or NestJS (preferred).
- Experience with WordPress (themes and plugins) is nice to have, but not required (nice-to-have).
- 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 (required).
- Excellent communication and collaboration skills (required).
Catena Media is a performance-based online marketing and lead-generation company focused on the iGaming, sports betting and esports industries. It connects operators with new customers through a portfolio of affiliate websites and content across multiple markets, with a particular strength in North America. Headquartered in Gżira, Malta, the company employs a globally distributed workforce of more than 200 people. Catena Media is listed on Nasdaq Stockholm.