Senior Agent Architect: Build Multi-Agent Creative Engines

Pencil; Buenos Aires; Remote; ARS 178,643,000 - 267,965,000; Full time

Benefits offered by this job

25 days PTO plus public holidays

Health insurance / private medical

Monthly wellness/learning stipend

Remote - work from anywhere in home

Enhanced parental leave policies

Office access in The Shard, London (UK

Flexible working hours

Job summary

Pencil is building an agent architect role focused on designing the brain of Pencil—the multi-agent, AI-powered creative platform that handles brand-specific stories across text, image and video. You will bridge creative intent and machine execution, leading discovery with clients and decomposing business problems into scalable agent workflows.

This is a client-facing technical role requiring clear communication with senior stakeholders.

Qualifications

• 3+ Years of Direct GenAI Experience with GPT-4, Claude, Gemini
• Systems thinking and architecture experience
• Comfortable with Python, JSON, and API docs
• Experience leading discovery with customers and turning briefs into technical solutions
• Strong client-facing communication and ability to explain complex concepts to non-technical stakeholders

Responsibilities

• Design and implement multi-agent workflows for Pencil's SaaS platform
• Lead discovery sessions with clients and decompose problems into agent architectures
• Balance prompting, RAG, and fine-tuning decisions with stakeholders
• Develop reusable agents and prompt libraries for scale
• Collaborate with AI Engineering and Product teams to determine architecture decisions

Skills

GenAI

LLMs

Systems thinking

Client-facing

Python

API integration

Evaluation & benchmarking

Tools

RAG

Multi-agent orchestration

Job description

Pencil is building an agent architect role focused on designing the brain of Pencil—the multi-agent, AI-powered creative platform that handles brand-specific stories across text, image and video. You will bridge creative intent and machine execution, leading discovery with clients and decomposing business problems into scalable agent workflows.

This is a client-facing technical role requiring clear communication with senior stakeholders.