Senior Software Engineer - High Performance Systems

Hey there! We’re Fever , the world’s leading tech platform for culture and live entertainment. Our mission? To democratize access to culture and entertainment. With our proprietary cutting-edge technology and data-driven approach, we’re revolutionizing the way people engage with live entertainment. Every month, our platform inspires over 300 million people in +55 countries (and counting) to discover unforgettable experiences while also empowering event creators with our data and technology, helping them scale, innovate, and enhance their events to reach new audiences. Our results? We’ve teamed up with major industry leaders like Netflix, F.C. Barcelona, and Primavera Sound, presented international award-winning experiences, and are backed by several leading global investors! Impressive, right? To achieve our mission, we are looking for bar-raisers with a hands-on mindset who are eager to help shape the future of entertainment! Ready to be part of the experience? Now, let’s discuss this role and what you will do to help achieve Fever’s mission. Behind the user-friendly iOS and Android apps and webpage that work across the world is the engineering team. We are in charge of creating, developing, improving, and maintaining all Fever services so that more people can have an amazing experience. About the role Location: Spain - Home office friendly. As a Senior Backend Engineer specializing in high-performance systems, you'll play a pivotal role in shaping the backbone of Fever's live-entertainment platform. We're seeking someone with proven software development excellence, a keen eye for code quality, and a drive to get things done right. Join us if you thrive in a fast-paced environment and are excited about pushing the boundaries of what's possible. This is an opportunity to have real impact in a high-growth global category leader. What will you do at Fever? On your first month in Fever (Onboarding period): You’ll join a structured onboarding program designed to help you ramp up smoothly. During this period, you will: Meet your buddy and team, and get to know Fever’s culture and ways of working. Set up your local environment and become familiar with our Python-based stack, CI/CD pipelines, and cloud infrastructure. Learn about our architecture and observability tools while contributing small improvements and fixes. Have your first code running in production and a clear understanding of our delivery flow and processes. By the end of the onboarding, you’ll be ready to join your long-term squad and start contributing to larger initiatives. After 3 months in Fever: You’ll be confidently collaborating and delivering at full speed. You will: Design and implement end-to-end features within your squad. Participate in architectural discussions and propose improvements across our services and APIs. Work with event-driven systems and focus on performance, reliability, and scalability. Collaborate closely with Product, Data, and other Engineering teams to enhance our platform and developer experience. On your 6th month in Fever: You’ll be fully established as a key contributor in your team. You will: Take ownership of core components and help evolve their architecture. Lead by example through code reviews, design sessions, and mentoring. Contribute to best practices in areas like scalability, observability, and system design. Drive continuous improvement and have a visible impact on how we build high-performing services at scale. Become an expert of your domain, using business context and technical excellence to drive strategic initiatives forward About you Must have skills: Strong knowledge of building maintainable and scalable code, applying testing driven development and design patterns. Strong knowledge of relational databases and SQL, taking it to its limits. Proficiency in using Datadog or other similar profiling tools and monitoring systems. Proficiency in business English. Ideally, experience with: Python (Django/Fast API) PostgreSQL