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 integral 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*
- Design, develop, and maintain scalable backend services using Node.js.
- Build and optimize cloud-native applications on AWS.
- Develop and maintain event-driven and messaging-based architectures using SQS and SNS.
- Design and manage serverless solutions with AWS Lambda.
- Work with DynamoDB to build high-performance, scalable data solutions.
- Collaborate with cross-functional teams to deliver reliable, low-latency backend services.
- Monitor, troubleshoot, and optimize system performance, availability, and scalability.




- Participate in code reviews and contribute to engineering best practices.

*Must-have Skills*
- +5 years of experience working as a Frontend Engineer.
- Strong experience with Node.js and backend application development.
- Hands-on experience with AWS, including:
- EC2
- Lambda
- SQS
- SNS
- DynamoDB
- Experience designing and developing scalable distributed systems.
- Knowledge of asynchronous programming and event-driven architectures.
- Experience building RESTful APIs and backend integrations.
- Strong problem-solving and debugging skills.
- Excellent communication and collaboration skills.

*Nice-to-have:*
- AI Tooling Proficiency:
Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.
- Experience building systems that process millions of

📌 Senior JavaScript Software Engineer (Barcelona)
🏢 Wizeline
📍 Barcelona