Full Stack JavaScript/TypeScript Engineer

SUMMARY:

We are looking for a Mid-Senior Full Stack JavaScript/TypeScript Engineer to join a Commercial Engineering team working on business-critical digital publishing and advertising platforms.

This is a long-term opportunity within a complex, high-traffic production environment, combining ongoing platform enhancement, modernisation and migration work. The role is technically full stack, with an approximate 70/30 frontend-to-backend split, although the frontend work is focused on browser-level engineering rather than traditional UI or React component development.

WHAT WILL YOU BE DOING:

As part of an agile software development team, you will:

• Develop and maintain software using JavaScript, TypeScript and Node.js.
• Working directly with vanilla JavaScript, the DOM and browser APIs.
• Building and maintaining plugin and configuration systems.
• Working with third-party script integrations across commercial and advertising platforms.
• Contributing to browser-level functionality, including DOM manipulation, scheduling and brokers.
• Working with analytics and consent management (CMP) integrations.
• Contributing to the ongoing development and modernisation of high-traffic production platforms.
• Supporting a mixture of BAU enhancements, platform evolution and migration work.
• Working within existing CI/CD, containerised and Kubernetes-based environments.
• Collaborating with an experienced engineering team to solve technical problems and deliver reliable, maintainable solutions.
• Taking ownership of problems and using initiative to identify and implement effective solutions.

WHAT WE ARE LOOKING FOR:

• Strong commercial experience with JavaScript and TypeScript.
• Strong hands-on experience with Node.js.
• Proven experience working with vanilla JavaScript.
• Strong familiarity with the DOM, browser APIs and the inner workings of modern browsers.
• Strong software engineering fundamentals.
• Experience developing and supporting software in production environments.
• Comfortable working with CI/CD and containers.
• Familiarity with working in a Kubernetes environment.
• Strong problem-solving skills and the ability to use initiative.
• Comfortable working across both frontend and backend areas of a system.
• Ability to work effectively within an established engineering team and complex production environment.
• Strong focus on code quality, maintainability and engineering best practices.
• Strong verbal and written communication skills in English

NICE TO HAVE:

• Experience with CSS and browser layout.
• Previous experience within digital publishing, advertising technology or high-traffic web platforms.
• Experience with third-party script integrations.
• Exposure to analytics platforms.
• Experience with Consent Management Platforms (CMPs).
• Experience contributing to platform modernisation or migration projects.
• Good use of LLM/AI tooling as part of the software development workflow.

WHAT’S IN IT FOR YOU?

• Be part of our collegial environment where responsibility and authority are shared equally amongst colleagues and help create our company culture.
• A culture in which we don’t criticise failure but ensure we learn from our mistakes
• An Agile environment where your ideas are welcome
• The possibility to grow and experience different projects
• Ongoing Training & Mentoring
• The possibility of travelling

- ATTENTION! THIS POSITION IS FOR PORTUGAL OR BRAZIL-BASED ONLY