
Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone.
51 - 200 employees
Founded 2006
October 21
🇬🇧 United Kingdom – Remote
⏳ Contract/Temporary
đźź Senior
đź’» Frontend Engineer / Web Developer

Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone.
51 - 200 employees
Founded 2006
• Identifying opportunities for code optimization and implement performance improvements. • Working on complex tasks, including feature development and enhancements to CI/CD pipelines. • Writing clean, high-quality, and efficient code following industry’s best practices. • Supervising and managing the release process to ensure seamless deployments. • Reviewing pull requests, maintaining code quality and preventing breaking changes. • Troubleshooting front-end and server-side issues using advanced debugging techniques. • Contributing to technical discussions and provide insights on implementation strategies. • Mentoring junior developers, supporting their professional growth. • Collaborating effectively with both technical and non-technical stakeholders to resolve challenges. • Monitoring logs to detect issues proactively and create detailed bug reports.
• At least 5 years of experience (or equivalent) in software development. • Previous experience in an iGaming project will be considered an advantage • Strong proficiency in React, Node.js, JavaScript/TypeScript, and modern front-end frameworks. • Deep understanding of Git best practices and managing monorepo projects. • Experience with Redux, Redux Toolkit, Jest, Styled Components, Storybook, Service Workers, and Webpack. • Skilled in optimizing applications for performance and scalability. • Ability to independently drive features from ideation to deployment. • Confident in conducting code reviews and enforcing best practices. • Excellent communication skills to interact with both technical and non-technical stakeholders. • Comfortable working in an agile environment with sprints, standups, and retrospectives. • Passionate about learning and implementing new technologies. • Strong debugging skills for both front-end and server-side issues. • Proficient in writing unit tests using Jest, Mocha, or similar frameworks. • Experience with unit testing frameworks and writing maintainable tests. • Familiarity with CI/CD pipelines, AWS services, or cloud architecture. • Leadership experience, including mentoring developers or scaling teams. • Ability to write comprehensive technical documentation for complex systems. • Active involvement in cross-team technical discussions and project planning. • Experience in performance profiling and optimization for large-scale applications. • Knowledge of SEO, Google Tag Manager (GTM), and Google Analytics 4 (GA4) is a plus. • Strong understanding of CI/CD and deployment processes.
• Clear scope with no ambiguity over deliverables. • Opportunity for repeat engagements based on performance.
Apply NowOctober 1
Lead Frontend Developer at Amber Labs focusing on government programmes using modern web technologies. Responsibilities include team leadership, technical delivery, and guiding frontend development practices.
🇬🇧 United Kingdom – Remote
⏳ Contract/Temporary
đźź Senior
đź’» Frontend Engineer / Web Developer
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