Full Stack Engineer leading backend architecture and platform development for Commons’ sustainable spending app. Building end - to - end features, integrations, infrastructure, and security.
About the role
- Staff Backend Engineer building Python distributed systems and serverless APIs for Emumba’s cloud-native core services. Designing scalable event-driven pipelines and secure AWS applications.
Responsibilities
- Build backend logic for event-driven systems using message queues and pub/sub services, with strong data processing and file-handling logic
- Manage concurrent tasks efficiently in distributed environments using asynchronous programming techniques
- Design and implement data processing pipelines across cloud storage, compute, and database services
- Optimize applications for performance and scalability through caching, async calls, and latency reduction
- Design and develop serverless applications and RESTful APIs using Flask or FastAPI
- Follow cloud security best practices, including IAM, encryption, and network isolation
- Implement authentication mechanisms using OAuth, JWT, or managed identity services
Requirements
- 5+ years of hands-on Python backend development experience, with solid exposure to cloud-native or serverless solutions (AWS preferred)
- Proven experience with distributed systems concepts, including event-driven architecture, message queues, and scalable data pipelines
- Hands-on experience with asynchronous and concurrent programming
- Strong testing and debugging skills across distributed architectures
- Exposure to GenAI tooling or LLM-based systems, particularly RAG or agentic RAG architectures, is a plus
- Experience integrating LLM APIs into backend services or workflows
- Familiarity with vector databases and embedding-based search
- Builder mindset: thrives on writing, debugging, and improving production code
- Collaborative, humble, and open to feedback
- Strong communicator who explains design decisions clearly
- Influences through contribution, not hierarchy
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