Lead Fullstack Software Engineer (Javascript - Barcelona)

We are:Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

With the right people and the right ideas, there’s no limit to what we can achieve

Are you a fit?Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

Key Responsibilities

• Take full technical ownership of multiple products, including building new features, implementing technical improvements, and providing support to editorial teams.

• Design, develop, and maintain scalable web applications using JavaScript, React, and Node.js.

• Develop and maintain GraphQL APIs using Node.js, with NestJS experience as a plus.

• Design and optimize cloud-based applications and services using AWS.

• Work with PostgreSQL and other database technologies to build reliable and scalable data solutions.

• Lead and provide technical direction to a team of junior developers.

• Establish and enforce software engineering best practices, including coding standards, code reviews, Git, CI/CD, and automated testing.

• Continuously optimize application architecture, performance, scalability, maintainability, and reliability.

• Build and promote reusable components and solutions that can be leveraged across multiple products and teams.

• Collaborate with stakeholders and technical teams to communicate solutions, demonstrate work, identify risks, and drive projects forward.

• Work effectively in a fast-paced, agile environment while meeting critical project timelines.

• Provide technical guidance and independently drive solutions while seeking feedback when appropriate.

Must-have Skills

• 5+ years of experience architecting and building scalable web applications.

• Expert-level JavaScript skills with strong experience developing applications using React.

• Extensive experience building GraphQL APIs with Node.js.

• Strong experience with AWS, including:

• S3

• EC2

• RDS

• API Gateway

• CloudFront

• Lambda

• In-depth knowledge of database technologies with hands-on experience using PostgreSQL.

• Real-world experience implementing and maintaining CI/CD pipelines using tools such as GitHub Actions or Jenkins.

• Strong understanding of software architecture, scalability, performance, and maintainability.

• Experience with software engineering best practices, including unit testing, code reviews, Git, documentation, and coding standards.

• Experience providing technical direction and mentoring junior developers.

• Strong communication and collaboration skills, with the ability to work effectively with technical and non-technical stakeholders.

• Ability to work independently, identify risks, and drive solutions in a fast-paced agile environment.

Nice-to-have:

• AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including coding, drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.

• Experience with NestJS.

• Experience building reusable components, shared libraries, or platforms following an open-source mentality.

• Experience working in the media and publishing industry.

• Experience building tools or platforms used by editorial, content, or newsroom teams.

• Experience designing highly scalable and high-performance web applications.

• Strong understanding of cloud-native and distributed application architectures.

• Experience optimizing application performance, reliability, and maintainability.

• Experience working with multiple engineering teams and driving technical standards across teams.

What we offer:

• A High-Impact Environment

• Commitment to Professional Development

• Flexible and Collaborative Culture

• Global Opportunities

• Vibrant Community

• Total Rewards

*Specific benefits are determined by the employment type and location.

Find out more about our culture here.