AI Engineer; Agents

About Us

At Félix, we’re building the financial ecosystem for Latin immigrants in the U.S., starting with a revolution in remittances. Our core product is an AI‑powered chatbot built on Whats App, allowing our users to send money home as easily as sending a text message. We leverage cutting‑edge technology like AI, blockchain, stable coins to make cross‑border payments faster, more affordable, and more accessible than ever.

We are seeking a proactive and highly skilled AI Engineer to join our core AI team. This role is central to Félix’s next phase of growth, focusing on designing, building, and scaling autonomous AI agents that will integrate directly into our product and internal operations. We are building a world‑class AI team and believe great talent comes in various shapes. We are open to hiring at the Semi‑Senior, Senior, or Staff level.

We will calibrate your role, title, and compensation based on your technical depth, architectural ownership, and the scope of impact you’ve historically delivered.

You will be instrumental in evolving our Whats App‑based AI platform beyond simple Q&A into a sophisticated, multi‑agent system capable of reasoning, planning, and executing complex, multi‑step tasks across our critical functions (loans, payments, fraud). You will partner closely with JM Mommessin, our Head of AI, as well as with other engineering teams and PMs to translate our AI strategy into a tangible roadmap and bring it to life.

• Production‑Grade Agent Architecture:
  Architect, develop, and maintain scalable, stateful AI agents using Python and modern frameworks (Google ADK, Lang Graph, CrewAI, etc.) that handle real‑world edge cases.
• LLMOps & Observability:
  Establish production monitoring for agentic workflows. Implement tracing and observability (Lang Smith, Arize Phoenix, Weights & Biases) to track reasoning paths, tool‑calling success rates, and latency bottlenecks.
• End‑to‑End Production Integration:
  Lead the integration of AI agents into core product infrastructure (Payments, Fraud, etc.). Own the full lifecycle, from containerization (Docker/Kubernetes) to CI/CD deployment and post‑launch stability.
• Advanced Evaluation Pipelines:
  Design automated “evals‑as‑code” using LLM‑as‑a‑judge, semantic similarity testing, and adversarial benchmarking to ensure agent safety and groundedness before every release.
• Performance & Cost Engineering:
  Optimize RAG pipelines and agent loops for production constraints. Implement caching strategies, prompt compression, and model routing to balance inference costs with high‑performance requirements.
• Technical Leadership:
  Mentor junior engineers on software craft. Drive best practices in asynchronous programming, error handling for non‑deterministic outputs, and structured data validation (Pydantic).

• Experience:
  
  7+ years of hands‑on software engineering, with at least 2 years dedicated to building and deploying production‑grade AI/ML applications, focusing on LLMs or generative AI.
• Technical Mastery:
  Mandatory expertise in Python and deep familiarity with at least one core LLM API/framework (OpenAI SDK, Google AI SDK, CrewAI, Lang Chain, etc.).
• Agentic System Knowledge:
  Proven experience implementing agentic systems, including RAG, vector databases, and memory/state management.
• Engineering Fundamentals:
  Strong understanding of software development best practices, version control (Git/Git Hub), CI/CD pipelines. Experience with personal projects or demonstrable contributions on Git Hub is a strong plus.
• Execution & Communication:
  Proven ability to translate high‑level business needs into concrete, maintainable, and well‑tested code.
• Equivalents:
  Comparable competencies in any of the above may also be considered.

Base Salary (by level):

• Mid: $105,000–$170,000
• Senior: $160,000–$245,000
• Staff: $230,000–$320,000
• Initial stock options grant
• Annual performance bonus
• Health, dental, and vision plans
• Continuous learning opportunities
• Unlimited PTO
• Paid parental leave
• Empowering growth opportunities in a dynamic entrepreneurial environment

At Félix, we are committed to providing equal employment opportunities to all qualified employees and applicants without regard to race, religion, nationality, sex, sexual orientation, gender identity, age, or disability. This policy applies to all terms and conditions of employment, including recruitment, hiring, placement, promotion, training, compensation, benefits, and termination.

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