Robots and Pencils - AI Engineer
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Requirements
• 6+ years of professional software engineering • Strong experience with Python and Node.js • Experience with LLM function/tool calling, prompt engineering, multi-agent orchestration, vector databases (OpenSearch), embeddings, streaming LLM responses, RAG concepts. • Experience working with AWS cloud environments, including Lambda, DynamoDB (and Single-Table design), S3, SQS, EventBridge, Step Functions, etc. • Experience building and maintaining fullstack applications • Exposure to workflow orchestration tools (e.g., Sequencer or similar systems) • Solid understanding of API design and backend systems • Familiarity with databases (SQL and/or NoSQL, including scalable design patterns) • Experience working in production environments • Strong unit testing practices and maintainable test strategies • Experience with containerization (e.g., Docker) • Demonstrated ability to reason about system-wide impacts of changes, including downstream effects across services and data layers. • Demonstrated ability to identify design gaps in requirements and raise them before they reach development. • Experience with Langfuse, synthetic AI testing, token cost optimization, reasoning effort configuration, Step Functions for AI workflows.
Responsibilities
• Build and maintain backend services using Python and Node.js, including serverless architectures (e.g., AWS Lambda, API Gateway) • Develop and integrate APIs that support frontend applications and external systems • Contribute to frontend features and ensure smooth integration across the stack • Write clean, maintainable, and well-tested code with strong unit testing practices • Workflow & System Orchestration • Support the development and maintenance of workflows using orchestration tools (e.g., Sequencer / workflow engines, state machines) • Contribute to event-driven processes and asynchronous system operations (e.g., SQS, EventBridge) • Assist in improving reliability through better error handling and retries • Backend & API Engineering • Develop RESTful APIs and support the BE architecture • Integrate with third-party services and internal systems, including AI-driven platforms • Assist in optimizing performance and scalability of services using DynamoDB single-table design patterns (composite keys, transactional writes) • Implement secure and reliable data handling practices • System Reliability & Support • Troubleshoot issues in production environments with guidance from senior team members • Contribute to logging, monitoring, and debugging efforts • Support deployment and release processes in cloud-native environments (AWS, Docker) • Collaboration & Growth • Work closely with cross-functional teams across global locations • Participate in code reviews and team discussions • Take ownership of assigned features and tasks, delivering end-to-end solutions
Benefits
• At Robots & Pencils, you’ll join a global team of engineers, designers, and strategists who care deeply about craftsmanship, collaboration, and innovation. You’ll work on meaningful, production-grade systems that impact real users at scale, within a mature and evolving engineering environment. • You’ll collaborate with experienced teams across backend, frontend, and infrastructure, gaining exposure to advanced AWS practices and modern architecture through our globally recognized partnerships. As part of a leading AI and cloud engineering organization, you’ll have the opportunity to grow your skills while contributing to high-impact digital products. • If you enjoy building across the stack, solving real integration challenges, and being part of a high-performing, globally distributed team, we’d love to meet you.
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