Lead Full-Stack Engineer – API Integrations and Reporting Platform Onda is a leading marketing agency specializing in e-commerce businesses. We help online brands grow through innovative marketing strategies, data-driven decision-making, and expert campaign execution. We are looking for a highly motivated and strategic individual to join our team as a Client Advocate , a hybrid role that blends e-commerce marketing strategy , project management , and client relationship management . This position is ideal for a versatile professional who thrives in a fast-paced environment, excels at building relationships, and is passionate about driving impactful marketing initiatives for online sales growth. Role Overview: We are seeking a skilled Full-Stack Engineer to build and maintain a robust, scalable system that integrates marketing and analytics data from multiple APIs (e.g., Magento, Google Analytics, Meta, Klaviyo, Mailchimp, Shopify, etc.) into an Amazon-hosted backend. This system will support reporting across 50–300 unique accounts. Extensive experience in Shopify is crucial. Key Responsibilities: - Design and develop API connectors for major marketing platforms. - Build scalable ETL pipelines to ingest, clean, and store data into Amazon-hosted databases. - Architect and implement a backend system using Python (preferred) or Node.js. - Develop a frontend UI/UX for real-time reporting using React.js or similar. - Ensure system scalability, security, and performance. - Manage infrastructure within AWS (RDS, S3, Lambda, etc.). - Collaborate with stakeholders to define report formats and outputs. Required Skills: - Strong in Python (or Node.js) for backend services. - Proven experience integrating multiple third-party APIs. - Experience with AWS services (EC2, RDS, Lambda, S3). - Expertise in SQL (preferably SQL Server or Amazon Redshift). - Solid frontend development skills using React.js or equivalent. - Familiarity with Docker and CI/CD pipelines. - Understanding of data normalization and handling high-volume datasets. Preferred Experience: - 5+ years of full-stack development. - Experience working on marketing data or e-commerce platforms. - Prior work with BI tools (Tableau, Metabase, Superset). - Working knowledge of OAuth and secure API credential management. Tools & Technologies: - Python, Node.js - React.js / Next.js - AWS (RDS, S3, EC2, Lambda) - Docker - GitHub Actions (or similar CI/CD) - SQL Server / Amazon Redshift This is a remote position!