• Design and develop backend services leveraging RAG architectures to deliver intelligent, context-aware responses • Build and optimize integrations with LLM providers (e.g., OpenAI, Bedrock), ensuring performance, scalability, and cost efficiency • Develop modern user interfaces using React and TypeScript • Build Python-based APIs and microservices deployed via AWS Lambda (Serverless Framework); contribute to Node.js services where needed • Work with and integrate multiple data sources, including PostgreSQL, Snowflake, and DynamoDB • Collaborate with frontend, data, and DevOps teams to ensure smooth deployment and integration of AI-driven features • Implement monitoring, logging, and performance optimization for AI pipelines and services (CloudWatch, etc.) • Maintain security best practices for data handling, authentication, and API usage • Continuously evaluate and recommend new AI tools, frameworks, and best practices.

• Lead the Wizz backend team of four Senior Backend Engineers and own the team strategy. • Own the backend architecture, ensuring scalability, performance, and reliability for millions of users. • Collaborate closely with product teams to influence product decisions from a strong technical perspective. • Design, implement, deploy, and maintain highly scalable and highly available backend systems, including features that enhance user safety and content moderation. • Integrate and manage third-party services (e.g., analytics, moderation, cloud tools) to ensure a secure and seamless user experience. • Define and promote best practices for reliability, observability, and infrastructure management. • Contribute to the evolution of the backend infrastructure to support rapid product iterations, responsible growth, and a safe environment for users. • Improve system performance and scalability, with a focus on high-traffic distributed systems.

• Lead the backend team at Wizz, managing a team of 4 Senior Backend Engineers and owning the technical strategy • Own the backend architecture, ensuring scalability, performance, and reliability for millions of users • Collaborate closely with product teams to shape and influence product decisions from a strong technical perspective • Design, implement, deploy, and maintain highly scalable and highly available backend systems, including features that enhance user safety and content moderation • Integrate and manage third‑party services (e.g., analytics, moderation, cloud tools) to ensure a secure and seamless user experience • Define and promote best practices for reliability, observability, and infrastructure management • Contribute to the evolution of backend infrastructure to support rapid product iteration, responsible growth, and a safe environment for users • Improve system performance and scalability, particularly for high‑traffic distributed systems

• Support and Maintenance – Level 2 (L2) • Handling incident and request tickets, focusing on technical diagnosis and resolution; • Supporting the Service Desk (L1) in critical situations or escalations; • Conducting technical analyses (troubleshooting and debugging) to identify failures; • Performing root cause analysis (RCA) for critical or recurring incidents; • Prioritizing and organizing maintenance requests according to business impact; • Assisting with deployment of changes in production environments, in coordination with Infrastructure and Development.