Our client is committed to developing and operating modern, cloud-native applications with the primary goal of improving operational efficiency and delivering an outstanding user experience.

Aunque la experiencia profesional y las cualificaciones son principal para este puesto, asegúrese de comprobar si posee las habilidades interpersonales preferibles antes de solicitar, si se requieren.

The Digital Factory team acts as a strategic partner to implement state‑of‑the‑art IT solutions for clients and employees. To achieve this mission, the team collaborates closely with business units, IT departments, and third‑party vendors.

You will work with cutting‑edge development tools and best‑in‑class DevOps processes. Together with a young and highly motivated team, you will build and manage high‑impact performance engineering solutions.

YOUR CHALLENGE

Are you excited to join an engineering team that systematically tests new and existing solutions? Do you have a natural curiosity to uncover bottlenecks and the technical skills to resolve them? Are you motivated to take ownership and help build high‑performing frontend solutions in a corporate environment?

We are looking for a Performance Engineer focused on performance testing and optimization, who combines technical expertise with strong analytical skills and a passion for problem‑solving. In this role, you will:

Performance Testing & Optimization

- Conduct performance, load, and stress tests on web applications to ensure compliance with defined SLAs.
- Identify performance bottlenecks across frontend, APIs, and infrastructure,



and recommend improvements.

Collaboration & Quality Assurance
- Work closely with developers, testers, architects, and business stakeholders to integrate performance testing into CI/CD pipelines.
- Document test strategies, scenarios, and results with clear reporting for both technical and non‑technical audiences.
- Contribute to building a performance‑first culture by coaching teams and embedding testing early in the development lifecycle.
- Monitor production environments using real‑user monitoring (RUM) and synthetic testing solutions.
- Proactively identify risks and potential degradations in application performance.
- Support troubleshooting of performance‑related incidents across multiple system layers.

YOUR PROFILEEducation & Experience
- Bachelor’s degree in Computer Science, Information Technology, or a related field.
- 2–4 years of experience in performance testing, ideally in banking or financial services.

Performance Engineering Expertise
- Strong knowledge of performance testing tools (e.g., JMeter, Gatling, LoadRunner, k6).
- Experience with frontend monitoring frameworks and developer tools.
- Familiarity with CI/CD environments (Jenkins, GitLab CI, Azure DevOps).




- Solid understanding of frontend‑oriented development, including:
- Performance optimization techniques (lazy loading, caching, CDN, minification)
- Backend/API dependencies and their impact on frontend performance
- Cloud and containerized environments (Docker, Kubernetes)

Nice‑to‑Have
- Experience in the banking sector or secure, regulated environments.
- Exposure to synthetic monitoring and observability solutions (New Relic, AppDynamics, Elastic APM).
- Knowledge of accessibility, security, and compliance standards in frontend applications.

Communication & Stakeholder Management
- Excellent communication and reporting skills, with the ability to interact confidently with both technical and business teams.
- Strong problem‑solving mindset, capable of working independently and collaboratively in an international setup.

About Joppy

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Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Business Development

Industries

Technology, Information and Internet and Software Development

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📌 Performance Engineer (Barcelona)
🏢 Joppy
📍 Barcelona