Associate AI Engineer (Onsite in Los Angeles)

Overview

Build real AI agents on a production platform, with senior engineers working alongside you. You will work in Python and FastAPI, build tool-calling agents on AWS Bedrock and AgentCore using the Strands Agents framework, and own technical decisions within the problems you take on, with your scope growing as you do. This role is fully in-office in Los Angeles because our mentorship model depends on it: pair programming, in-person code review, and a mentor a few desks away.

We hire for fundamentals, curiosity, and initiative. This is an early-career role. Engineers new to the field are welcome, and so are engineers with a year or two of experience who want to go deeper into AI and agentic systems. You do not need to know our stack on day one.

What You’ll Work On

• Design, build, and improve AI agents, deciding how tool-calling loops, model configuration, and multi-step workflows are structured using Strands Agents and AWS Bedrock
• Build and integrate MCP tools and servers, and learn how tool names and descriptions shape what an LLM does
• Deploy and run agents on Bedrock AgentCore, working with the platform team and your mentor
• Build RAG pipelines over pgvector or FAISS, choosing chunking, embedding, and retrieval approaches based on what the results show
• Design, test, and iterate on prompts; evaluate answer quality, latency, and token cost, and decide which tradeoffs to make; learn how guardrails are applied in production paths
• Evaluate models, tools, and approaches, and recommend which to use, with your reasoning documented
• Ship features and bug fixes in FastAPI services (REST and WebSocket APIs backed by PostgreSQL and Redis), deciding how to design, implement, and test them
• Contribute to background jobs and queue consumers so agent work runs outside the API request path
• Apply our architectural standards, use your judgment on design choices within them, help keep design documents current, and flag where the standards should change
• Submit pull requests, respond to review feedback, and review teammates’ code as you grow

What You Bring

• Solid Python from coursework, internships, or work: functions, classes, type hints, error handling, testing basics
• Data structures and algorithms, with awareness of time and space complexity
• SQL fundamentals (joins, aggregations, indexes, schema design); PostgreSQL exposure preferred
• REST and HTTP concepts, and how a web API is structured
• Git and pull-request workflow
• Clear communication, comfort asking questions, and a habit of picking up new tools and asking for help when you’re stuck

Preferred

• An agent project built with Strands Agents, LangChain, the OpenAI SDK, or a similar framework (coursework, personal, or professional), including how an LLM chooses and calls tools
• Model Context Protocol (MCP): building or using MCP tools and servers
• AWS Bedrock or Bedrock AgentCore, or AWS basics such as S3 and SQS
• RAG: chunking, embeddings, and vector stores
• Prompt engineering: writing, testing, and iterating on prompts
• FastAPI or a similar framework such as Flask or Django, SQLAlchemy or another ORM, and a willingness to learn async Python

Experience

• Bachelor’s or Master’s in Computer Science or a related field, or equivalent practical experience (bootcamp, self-taught, or on-the-job)
• Roughly 0-2 years of software engineering experience; internships, research, and substantial projects count
• A track record of learning quickly, shown through coursework, projects, work, open-source contributions, or community involvement

Benefits & Perks

Fuel Cycle is committed to supporting the well-being, flexibility, and growth of our team. We offer a competitive and inclusive benefits package that includes:

• Comprehensive Health Coverage: Medical, dental, and vision insurance plans
• 401(k) with Company Match: Plan for your future with our retirement savings program
• Equity Purchase Option: Participate in Fuel Cycle’s long-term success
• Flexible Work Schedule: Empowering you to balance life and work
• Generous Time Off:
• 15 vacation days and 7 sick days per year
• 12 company holidays
• 4 floating holidays/recharge days to rest or celebrate what matters to you
• Paid Parental Leave: Time to bond with your growing family
• Monthly Internet & Phone Stipend: Support for remote work setup
• Wellness & Lifestyle Perks: Access to tools like Rightway (healthcare navigation), Headspace (mental wellness), Peloton (fitness), and more
• Team Connection Perks:
• Weekly community lunches, refreshments, and snacks at our LA & NY headquarters

Compensation Overview

The expected starting salary range for this position is $90,000 - $110,000. This range represents the typical starting compensation offered to candidates hired into this role. Final base salary will be determined based on a variety of factors, including location, work experience, skills, knowledge, education, and certifications.

In addition to base salary, this role is eligible for variable bonus, and may include an equity grant or purchase option. These components make up your total compensation package, which will be reviewed in greater detail during your initial recruiter conversation.