Lead Fullstack Software Engineer (Javascript - Barcelona)

Location: Barcelona, Spain

Department: Software Engineering

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.