Senior Backend Engineer

Overview Senior 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 Description As 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. Responsibilities Lead 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. Requirements Experience: 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-Haves Experience 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. Benefits Be 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 Us We 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 Values We 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