Ph3 Staff Engineer – Payments Performance /h3p We are looking for a highly skilled Staff Engineer to join our Payments Performance team. This team focuses on optimizing payment performance across multiple dimensions: improving conversion rates, maximizing take rate, and keeping fraud and operational costs under control while ensuring compliance. /ph3 Responsibilities /h3ulli Collaborate with technology leaders and the product team to understand department goals and requirements, translating them into technical solutions /lili Design, develop, and maintain high-quality Java applications and systems aligned with business objectives /lili Lead the technical architecture and design of Java-based projects, ensuring scalability, performance, and maintainability /lili Create scalable architecture systems for Java-based applications, considering future growth and evolving business needs /lili Optimize application performance by identifying and addressing areas for improvement, such as code optimization, database query optimization, and resource utilization /lili Troubleshoot design flaws and system bottlenecks to enhance application stability and performance /lili Perform validation tests to ensure the flexibility and scalability of the Java environment, making necessary adjustments as needed /lili Conduct comprehensive system performance tests to identify bottlenecks, assess system capacity, and fine-tune application performance /lili Generate and present detailed systems reports, including performance metrics, bottlenecks, and recommendations for improvements /lili Conduct code reviews and provide constructive feedback to maintain high standards of software development, ensuring code quality, readability,



and adherence to best practices /li /ulh3 Qualifications /h3ulli Bachelor’s degree in software engineering or computer science /lili Minimum of 7 years of professional experience in Java development /lili Solid experience in Java application development and software architecture /lili In-depth knowledge of object-oriented design principles and design patterns /lili Ability to write clean, efficient, and readable code /lili Experience with cloud platforms such as AWS or GCP (desired) /lili Experience with Java development frameworks like Spring and Hibernate /lili Event-driven architecture design experience /lili High-level project management skills /lili Ability to solve complex software system issues /lili Good verbal and written communication skills /lili Being a team player, enjoying working with your own team and collaborating with other teams in the organization /lili Upper-intermediate written and spoken English proficiency /lili Well-versed in the software development life cycle /lili Experience with monitoring applications in production using telemetry tooling such as Newrelic, Datadog, Grafana + Prometheus, Dynatrace, Cloud Watch, distributed logs like ELK, etc. /li /ulh3 Benefits /h3ulli Flexibility: we have flexible schedules and are driven by performance /lili Fintech industry: work in a dynamic and ever-evolving environment, with plenty to build and boost your creativity /lili Referral bonus program: internal talents can refer ideal candidates and get rewarded /lili Social budget: monthly budget to chill out with your team (in person or remotely) and deepen your connections /lilid Local Houses: option to rent a house to spend one week anywhere in the world coworking with your team /li /ulh3 Work style /h3p We focus on impact and productivity over fixed hours. Teams have versátil schedules and, depending on your role and location, you will combine self‑managed focus time with moments of in‑person connection in our collaboration hubs. /p /p #J-18808-Ljbffr

📌 Staff Engineer - Payments Performance (Barcelona)
🏢 dLocal
📍 Barcelona