Senior Backend Engineer

OverviewSenior Backend Engineer role at Luzia. Join or sign in to apply. About Luzia: we ship fast, keep it simple, learn from experiments, own outcomes, and build what users need. We aim for a fast-paced environment where AI is used daily to automate the routine and amplify creativity. Luzia is backed by Silicon Valley investors and launched in April 2023 as a WhatsApp-based personal assistant, targeting GenZ users in LATAM. In our first 18 months, Luzia reached 1M daily active users worldwide and focuses on education and companionship for GenZ. Job DescriptionAs a Senior Software Engineer, you’ll join our founding engineering team, driving the development of scalable, high-impact solutions that power our AI-driven products. ResponsibilitiesLead Backend Development: Design, build, and deploy backend services with a focus on scalability, performance, and robustness, particularly for applications utilizing LLMs. Cross-Functional Collaboration: Work closely with product, AI, and engineering teams to translate business needs into scalable, high-performing technical solutions. API Development: Design and manage inter-service communications, ensuring seamless integration across our AI products. Code Excellence: Maintain high standards for code quality, testing, and deployment, championing best practices in CI/CD. Mentorship: Provide guidance and mentorship to junior engineers, fostering a culture of innovation, collaboration, and continuous improvement. System Optimization: Continuously analyze and optimize system performance, scalability, and reliability. Architectural Input: Engage in system architecture discussions, influencing the technical roadmap and future development strategies. RequirementsExperience: 5+ years of professional experience in Python development (additional languages are a bonus). Startup DNA: Previous experience in a startup environment, thriving in fast-paced, dynamic teams. Cloud Expertise: Hands-on experience with cloud environments, modern databases, and distributed data ecosystems. Communication: Strong communication skills. Fluency in English and comfortable working in an English environment. Customer-Centric: Product-focused mindset, ensuring technical solutions align with customer needs. Proactive Leadership: Self-starter with excellent prioritization skills, able to work autonomously while driving results. Business-Technical Translator: Ability to explain complex technical concepts to business stakeholders. Education: Bachelor’s degree in Computer Science, Engineering, or related fields. Nice-to-HavesExperience with high-performance computing and system optimization. Leadership or project management experience. B2C experience with large user databases. Hands-on experience building or contributing to AI products; experience or side projects involving AI/ML. BenefitsBe part of an innovative project in artificial intelligence. Opportunities for growth and professional development in cutting-edge technologies. Competitive salary and attractive benefits package. Flexible, inclusive, and collaborative work culture. Why Join UsWe are on a journey to make AI meaningful, accessible, and transformative for millions of users. You’ll be part of a fast-growing startup focused on products that transform the AI space, with a product- and engineering-oriented team and a commitment to ethical AI practices. Our Culture and ValuesWe embrace agility and a ship, experiment, iterate, ship mentality. Our team is collaborative, innovative, and mission-driven. If you’re passionate about AI, solving complex problems, and making a significant impact, we’d love to hear from you. #J-18808-Ljbffr