Full Stack Software Engineer

Who we are

At Taptap, we are not just shaping the future of advertising technology—we are building it today. Guided by teamwork, respect, and determination, we challenge the status quo, connect ideas with impact, and create innovative solutions that drive real results. Our culture thrives on visionary thinking, collaboration, and a deep respect for people—because good people, doing great things is what makes us stronger.

As a global team, we believe in pushing boundaries, fostering growth, and exceeding expectations. We are authentic, ambitious, and passionate about what we do, and we never settle for less than excellence. If you’re looking to be part of a company that values creativity, problem-solving, and the power of technology, we’d love to hear from you.

Reporting directly to the VP of Engineering and based in Madrid, the Full Stack Software Engineer will play a key role within Taptap’s Product & Engineering department, contributing to the development and evolution of our global technology platform.

The role will focus on designing, developing, and maintaining both frontend and backend components that power products used by thousands of users worldwide. The candidate will work closely with Product, Operations, Marketing, and Engineering teams to deliver scalable, high-quality solutions that support business growth and innovation.

The ideal candidate combines strong technical expertise with a collaborative mindset, enjoys solving complex problems, and is passionate about building reliable, performant, and user-centric software in a fast-paced environment.

• Professional degree in Computer Science, Software Engineering, Information Systems, or a related field.
• +3 years of experience in software development using JavaScript and Type Script.
• Proven experience as a Full Stack Engineer working with ReactJS and NodeJS/Express.
• Professional level of English (C1).

• JavaScript and Type Script.
• ReactJS (functional components, hooks, Redux).
• NodeJS and/or Python.
• Experience designing and consuming REST APIs.
• Knowledge of SQL databases (PostgreSQL, Aurora) and No
  
  SQL databases (MongoDB, Redis, Elasticsearch).
• Experience working in Agile environments (Scrum, Jira).
• Strong problem-solving and analytical skills.
• Ability to work independently while collaborating effectively across teams.

• Experience with React Redux, Zustand, or Context API.
• Knowledge of Sass or React theming libraries.
• Experience with Web Sockets, GraphQL, Swagger, or API documentation tools.
• Experience working with AWS services (EC2, ECS, S3).
• Familiarity with code quality tools such as Sonar Qube and ESLint.
• Experience building and maintaining CI/CD pipelines.
• Knowledge of geospatial technologies or MongoDB aggregation frameworks.
• Experience with event-driven architectures and messaging systems such as RabbitMQ or Kafka.
• Familiarity with modern bundlers such as Vite or Bun.

• Build and maintain user-facing features used by thousands of global users.
• Develop reusable components and libraries using ReactJS and Type Script.
• Collaborate in the technical design and implementation of intuitive user interfaces.
• Optimize application performance, usability, and overall user experience.

• Develop and maintain backend services that support Taptap products.
• Design scalable services capable of handling high-volume, real-time requests.
• Integrate and maintain REST APIs across multiple systems and services.
• Ensure system stability, scalability, and reliability through robust backend architecture.

• Collaborate with Product Owners and stakeholders to define new functionalities.
• Design, develop, test, document, and deploy complete software solutions.
• Participate in code reviews and contribute to architectural discussions.
• Apply software engineering best practices to ensure maintainable and high-quality code.

• Work closely with Product, Operations, Marketing, and other Engineering teams.
• Monitor platform performance and user behavior to identify improvement opportunities.
• Contribute to technical decision-making and continuous platform evolution.
• Share knowledge and support a collaborative engineering culture.

• A dynamic and collaborative work environment.
• Competitive benefit package
• The opportunity to work on innovative products used across global markets.
• Role based in our Madrid, Spain office.
• This is a hybrid work position