Principal Full Stack Software Engineer – AI-First Development

Ubiminds

. Build agentic workflows and AI-powered products.

Posted 7/2/2026full-timeRemote • 🇧🇷 BrazilLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in building and deploying production-grade AI solutions, with strong proficiency in TypeScript and Python. Capable of mentoring teams and influencing AI culture while driving initiatives in a polyglot environment.

Highest-signal resume keywords

8+ Years Experience In Software EngineeringStrong Proficiency In TypeScriptExperience With LangGraph And LangSmithProven Track Record In AI/ML SystemsHands-On Experience With LLMs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software EngineeringMachine LearningAI Solutions DevelopmentData PreparationModelingEvaluationDeploymentMonitoringProduction AI SystemsPolyglot Environments

Soft Skills

MentoringCollaborationTransparent CommunicationOwnershipProblem-Solving

Tools & Technologies

LangGraphLangSmithMCP ServersLLMsRetrieval-Augmented Generation

Industry Keywords

AI StandardsAI CultureEngineering PracticesHigh AutonomyAI/ML Lifecycle

Tech Stack

Tools & technologies

PythonTypeScript

About the role

Key responsibilities & impact

Build agentic workflows and AI-powered products.
Design and deliver production-grade AI solutions from concept to deployment.
Collaborate closely with Product and Engineering teams to deliver high-quality software.
Take ownership of ambiguous problems and drive initiatives end-to-end.
Mentor engineers and help elevate the team's AI capabilities.
Contribute to the evolution of AI standards, patterns, and engineering practices.
Develop scalable and maintainable solutions in a polyglot environment.
Promote strong collaboration and transparent communication across teams.
Influence the technical direction and AI culture of the organization.

Requirements

What you’ll need

8+ years of experience in Software Engineering, Machine Learning, or AI-related roles.
Strong proficiency in TypeScript.
Experience with LangGraph, LangSmith, and MCP Servers.
Proven track record building and deploying production AI/ML systems.
Experience across the full ML lifecycle, including data preparation, modeling, evaluation, deployment, and monitoring.
Hands-on experience with LLMs, Retrieval-Augmented Generation (RAG), and modern AI approaches.
Strong proficiency with Python or another major AI/ML language.
Ability to work effectively in polyglot environments.
Experience building products from 0→1 with high autonomy.
Advanced English communication skills.

Benefits

Comp & perks

Are placed in a product-based company, with the same treatment as their full-time employees.
Have our full back-office support, from career guidance to HR and concierge services.
Enjoy our remote-first policy.
Get your own MacBook.
Have access to growth opportunities through tech talks, chapter meetings, and remote happy hours.
Improve your English through free lessons with native English speakers.
Participate in our Candidate Referral Program.
Optionally use our Florianópolis office with snacks, games, and weekly massages.