Backend Engineer – Python, AWS & GenAI

Description

Summary: Seeking a highly skilled Backend Engineer with strong Python experience to design, build, and maintain scalable backend systems supporting advanced AI and GenAI solutions. Highlights: 1. Opportunity to work on advanced backend systems supporting AI and GenAI 2. Ownership of technically challenging projects with real enterprise impact 3. Fast-paced environment encouraging innovation and continuous growth **Backend Engineer – Python, AWS \& GenAIer*** **Type of Employment:** Full\-Time Contractor * **Work Modality:** 100% Remote * **Location:** Argentina Only * **Work Schedule:** Full\-Time **About the Role** ------------------ Our client is looking for a highly skilled **Backend Engineer** to design, build, and maintain scalable backend systems supporting advanced AI and GenAI solutions for enterprise customers. This role is ideal for an engineer with strong **Python backend development experience** who enjoys solving complex technical problems and building reliable systems that integrate AI/ML models, vector databases, embedding services, data pipelines, and AWS infrastructure. The successful candidate will take end\-to\-end ownership of backend systems, from architecture and API design to deployment, monitoring, optimization, and long\-term maintenance. **Key Responsibilities** ------------------------ * Build scalable backend systems using **Python** and frameworks such as **FastAPI, Flask, or Django** . * Develop services for document retrieval, processing pipelines, and AI/GenAI workflows. * Design reliable APIs that connect AI models, vector databases, embedding services, and other systems. * Build reusable Python components that integrate with **AWS services** . * Work with containers, asynchronous processing, and distributed systems. * Implement logging, metrics, tracing, and internal tools to monitor performance and reliability. * Write clean, testable, and reusable code while separating business logic from infrastructure. * Take ownership of backend systems and technical decisions end\-to\-end **Required Skills and Qualifications** -------------------------------------- * Strong professional experience with **Python backend development** . * Experience with **FastAPI, Flask, or Django** . * Experience designing and building scalable APIs and backend services. * Exposure to **AI/ML or GenAI applications** , including model integrations, vector databases, embeddings, or document\-processing systems. * Hands\-on experience with **AWS services** . * Experience with **Docker** and modern deployment pipelines. * Familiarity with distributed systems, asynchronous processing, and service\-to\-service communication. * Understanding of functional programming concepts and maintainable software design. * Strong problem\-solving skills and the ability to work independently. * Professional\-level English communication skills. **What We Offer** ----------------- * + A full\-time, long\-term contractor opportunity. + The flexibility of a fully remote work environment. + The opportunity to work on advanced backend systems supporting AI and GenAI products. + Ownership of technically challenging projects with real enterprise impact. + Collaboration with an international and highly skilled team. + A fast\-paced environment that encourages innovation, autonomy, and continuous professional growth.