78 Best Full-time Entretenimiento Jobs in Barcelona (October 2025)

LGT Digital Factory

Performance Engineer

5 days ago

Barcelona

At LGT Digital Factory we are searching for Performance Engineer for our Barcelona Office. WHAT CAN YOU EXPECT? LGT is committed to developing and operating modern and cloud native applications with the primary goal of enhancing operational efficiency and creating great client experience. LGT Digital Factory (DiF) acts as a strategic nearshore partner to implement state-of-the-art client and employee IT front ends. To fulfill this mission, we interact closely with LGT business and IT units and third-party vendors. You can expect state-of-the-art development tools and best-in-class DevOps processes. Together with a young, highly motivated team you will build and run the DiF WindTunnel for performance engineering. YOUR CHALLENGE Are you excited about joining our engineering team that helps the bank to systematically test existing and new solutions (we call it our Performance Engineering WindTunnel)? Do you have a natural curiosity to uncover bottlenecks and the technical skillset to resolve them? Are you motivated to take ownership and contribute to building high-performing frontend solutions in a banking environment? We are looking for a Performance Engineer with focus 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 • Regularly conduct performance, load, and stress tests on web applications to ensure compliance with defined SLAs., • Analyze frontend performance using modern tools (e.g., Lighthouse, WebPageTest, Dynatrace) and browser developer tools., • 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 tailored to both technical and non-technical stakeholders., • Contribute to building a performance-first culture by coaching teams and embedding testing early in the development lifecycle. Monitoring & Incident Management • 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 PROFILE To be successful in this role, you should have: Education & 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., • Proficiency in scripting and test automation (JavaScript, Python, or similar)., • Familiarity with CI/CD environments (Jenkins, GitLab CI, Azure DevOps). Solid understanding of frontend-oriented development, including • Web technologies (HTML, CSS, JavaScript, React/Angular)., • 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 with 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 LGT Digital Factory LGT Digital Factory was initiated as a project in 2022 to drive the digital transformation of LGT Private Bank by designing and managing innovative digital tools and seamless user experiences. Our mission is to simplify and enhance how clients interact with the bank in their day-to-day activities. As a wholly owned subsidiary of LGT Private Bank Group, LGT Digital Factory (Spain) S.L. operates exclusively for the group’s companies. LGT Private Bank, headquartered in Liechtenstein, is the largest privately-owned international private banking institution, specializing in wealth management services for high-net-worth individuals, families, and institutional clients. Together, we form part of the LGT Group, a global leader in financial services. If you're looking to contribute to meaningful digital innovation within a respected and globally connected organization, LGT Digital Factory offers a unique opportunity to make an impact.

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