Lluís Pérez Montaner Email & Phone Number

Barcelona, Catalonia, Spain

Barcelona, Catalonia, Spain

• Contributed in the engineering of all the core tech infrastructure, reducing costs by 87% and enabling the development of features that drove 74%+ growth.
• Designed a system to monitor and manage 10,000+ vehicles, enhancing response times by over 104%.
• Led a team of 8 developers with only 1 person leaving the company.
• Reinforced the collaboration between other departments which led to solve the 90% of major customerservice issues, improved in 60% the revenue of the referral program, and enhanced monitoring of vehiclebattery location.
• Collaborated closely with product managers to design and iterate on experiments and MVPs, drivingdata-informed decisions.Stack: Kotlin, React, Terraform, AWS, Postreges Methodologies: BDD, Pair Programming, XP, Lean

Barcelona, Cataluña / Catalunya, España

• Played a key role in establishing a new JVM ecosystem, laying the foundation for future development.
• Developed a stress test framework for microservices, crucial in identifying and resolving efficiency issues.
• Led team-building events and retrospectives, fostering a collaborative team environment.Stack: Kotlin, MySQL, gRPC, Terraform, Groovy Methodologies: DDD, XP, Kanban

Barcelona, Catalonia, Spain

• Contributed to the development of an in-house billing system which is capable of handling hundreds of transactions per second while ensuring security, scalability, and accuracy.
• Initiated and led weekly “Lunch and Learn” sessions, enhancing knowledge sharing among peers, and organized two community meetups.
• Advocated for and implemented maintainable code practices and established coding standards across teams.Stack: Kotlin, Kafka Streams, Groovy, AWS Methodologies: BDD, Pair Programming, XP, Kanban

Barcelona Area, Spain

• As an intern, rebuilt the back office system and created a development guide, reducing tool creation time by 28%.
• Integrated 5+ third-party services (e.g., Zalando, Google), resulting in a 2% increase in company revenue.
• Led the creation of a unified third-party integration system, cutting integration costs by over 47%.
• Spearheaded biweekly cross-team practices to improve technical skills and collaboration, leading to thesuccessful launch of a new business line. Stack: JavaMethodologies: Scrum