AI Engineer
$130k - $150k • Remote • United States • Full-Time, W-2
Posted 5mo ago
About the job
BLEN is seeking an AI Engineer to help clients build production-grade applications powered by large language models, with a focus on agentic systems and MCP-based integrations. You will be responsible for developing agents that act on behalf of users, RAG pipelines for grounding answers, and MCP servers for secure model integration with client data and tools. This role involves wiring model APIs, designing tool interfaces, building evaluations, and ensuring applications are fast, reliable, observable, and safe. It is a hands-on shipping role, not a research position, focused on designing and deploying agentic AI systems for real users and shaping responsible AI adoption.
Responsibilities
- Design and build agentic systems with multi-step planning, tool usage, context retrieval, and human-in-the-loop checkpoints.
- Build MCP servers and clients to securely expose client data, internal tools, and APIs to LLMs in an auditable manner.
- Ship LLM-powered applications such as copilots, document intelligence tools, search functionalities, summarization, and workflow automation.
- Design and maintain RAG pipelines, including chunking, embeddings, vector stores, retrieval, reranking, and grounding.
- Integrate model APIs from various providers (OpenAI, Anthropic, Bedrock, Azure OpenAI, open-weight models) and select the appropriate model based on quality, latency, and cost.
- Develop evaluations and observability for AI features to monitor production performance and regressions.
- Apply prompt engineering, structured outputs, function/tool calling, and guardrails to ensure predictable agent behavior.
- Write production Python backends and APIs to expose AI capabilities to web and mobile clients.
- Collaborate with cross-functional teams (engineers, designers, product managers) to define AI product scope and capabilities.
- Contribute to shaping responsible AI practices for federal use, focusing on privacy, security, auditability, and human oversight.
Requirements
- 5+ years of professional software engineering experience, with at least 1 year shipping LLM-based or AI-powered features to production.
- Hands-on experience designing or building agentic systems (e.g., tool calling, multi-step reasoning, agent orchestration with LangGraph, CrewAI, OpenAI Agents SDK, Claude tool use).
- Working knowledge of the Model Context Protocol (MCP) or ability to quickly learn it, with familiarity in agent/tool standards.
- Strong Python skills and experience building/deploying backend services and APIs (e.g., FastAPI, Flask).
- Hands-on experience with at least one major LLM provider (OpenAI, Anthropic, Bedrock, Azure OpenAI, Vertex, or open-weight models).
- Working knowledge of RAG, including embeddings, vector databases (e.g., pgvector, Pinecone, Weaviate, Qdrant), and retrieval evaluation.
- Comfort with prompt engineering, structured outputs (JSON mode, schemas), and tool/function calling.
- Experience writing evaluations for non-deterministic systems.
- Solid SQL skills and experience with relational and unstructured data.
- Familiarity with at least one cloud platform (AWS, Azure, or GCP).
- Proficiency with Git, code review, and modern collaborative workflows.
- Strong written and verbal communication skills, capable of explaining AI tradeoffs to non-technical stakeholders.
- Must be a US Citizen or legal resident, able to work domestically.
- Must be able to attain a low-level security clearance.
- Must work from the United States.
Benefits
- Work from anywhere.
- Opportunity to work on high-visibility projects with significant impact.
- Competitive salary range ($130,000 - $200,000+).
- Comprehensive medical, dental, vision, life, and disability insurance.
- Up to 20+ days of PTO annually.
- 401(k) retirement savings plan.
- FSA/HSA and commuter benefit options.
- Professional development opportunities, certifications, and continuous learning support.
- Company-provided technology and access to productivity and AI tools.
- Additional bonus based on performance.