Senior Fullstack Engineer

Entravision; Barcelona; Híbrido; EUR 60.000 - 80.000; Jornada completa

Descripción de la vacante

A tech company based in Barcelona is looking for a Fullstack Developer with over 6 years of experience. You will build and optimize user interfaces using React and write maintainable Java code. The ideal candidate has AWS expertise and experience with MongoDB. This role provides opportunities for professional growth within a collaborative team in an innovative environment, along with competitive salary and flexible remote work options.

Servicios

Competitive salary

Comprehensive benefits

Flexible remote work options

Opportunities for professional growth

Formación

• 6+ years of fullstack development experience, with proficiency in both frontend and backend technologies.
• Strong proficiency in React and experience building responsive, user‑friendly interfaces.
• Proficiency in Java (Spring Boot preferred) for developing RESTful APIs and microservices.
• Hands‑on experience with AWS services for deploying and managing fullstack applications.
• Familiarity with Amazon EKS for deploying and scaling containerized applications.
• Experience with MongoDB, including schema design and optimization for high‑traffic applications.
• Familiarity with Grafana or similar tools for monitoring and visualizing application metrics.
• Experience with Terraform for provisioning and managing cloud infrastructure.
• Strong communication skills and ability to work closely with senior engineers and cross‑functional teams.
• Analytical mindset with the ability to troubleshoot and optimize both frontend and backend systems.

Responsabilidades

• Build and optimize user interfaces using React.
• Write clean, efficient, and maintainable code in Java (Spring Boot).
• Collaborate with the Lead Senior Backend Engineer to integrate frontend components.
• Work with AWS services to deploy and manage fullstack components.
• Support the deployment and optimization of containerized applications using Amazon EKS.
• Utilize Grafana to monitor application performance.
• Assist in defining and managing infrastructure using Terraform.
• Participate in code reviews and maintain high standards for quality.

Conocimientos

Fullstack development

React

Java (Spring Boot)

AWS

Kubernetes (Amazon EKS)

MongoDB

Grafana

Terraform

Collaboration

Problem-solving

Educación

Bachelor's degree in Computer Science or related field

Descripción del empleo

Responsibilities

• Frontend Implementation : Build and optimize user interfaces using React to deliver engaging and intuitive user experiences.
• Backend Development : Write clean, efficient, and maintainable code in Java (Spring Boot) to support APIs, microservices, and backend logic.
• System Integration : Collaborate with the Lead Senior Backend Engineer to integrate frontend components with backend APIs and ensure smooth data flow.
• Cloud Infrastructure : Work with AWS services to deploy and manage fullstack components in a cloud-based environment.
• Containerized Workloads : Support the deployment and optimization of containerized applications using Amazon EKS.
• Monitoring & Observability : Utilize Grafana to monitor application performance and troubleshoot issues across the stack.
• Infrastructure as Code : Assist in defining and managing infrastructure using Terraform to ensure consistency and scalability.
• Code Quality : Participate in code reviews, adhere to best practices, and maintain high standards for security, performance, and scalability.
• Collaboration : Work hand‑in‑hand with the Lead Senior Backend Engineer and product teams to deliver cohesive, high‑quality solutions.
• High Availability : Contribute to building and maintaining fault‑tolerant, high‑availability systems to meet strict uptime and performance SLAs.

Required Skills and Qualifications

• Experience : 6+ years of fullstack development experience, with proficiency in both frontend and backend technologies.
• Frontend Expertise : Strong proficiency in React and experience building responsive, user‑friendly interfaces.
• Backend Expertise : Proficiency in Java (Spring Boot preferred) for developing RESTful APIs and microservices.
• AWS Cloud : Hands‑on experience with AWS services for deploying and managing fullstack applications.
• Kubernetes : Familiarity with Amazon EKS for deploying and scaling containerized applications.
• MongoDB : Experience with MongoDB, including schema design and optimization for high‑traffic applications.
• Monitoring : Familiarity with Grafana or similar tools for monitoring and visualizing application metrics.
• Infrastructure as Code : Experience with Terraform for provisioning and managing cloud infrastructure.
• Collaboration : Strong communication skills and ability to work closely with senior engineers and cross‑functional teams.
• Problem‑Solving : Analytical mindset with the ability to troubleshoot and optimize both frontend and backend systems.
• Education : Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).

Nice‑to‑Have Skills

• Experience with additional monitoring tools (e.g., Prometheus, CloudWatch).
• Familiarity with CI / CD pipelines (e.g., Jenkins, GitHub Actions).
• Knowledge of Headlamp or similar tools for Kubernetes cluster management.
• Experience with offerwall or ad‑tech platforms.

Why Join Us?

• Work on a high‑impact, high‑availability platform serving millions of users.
• Collaborate with a talented and passionate team in a fast‑paced, innovative environment.
• Competitive salary, comprehensive benefits, and flexible remote work options.
• Opportunities for professional growth and hands‑on experience with cutting‑edge technologies.