Senior Backend Engineer

Foldspace AIcaruaru, Brazil

Há 11 horas

Descrição da vaga

Job Title : Senior Backend Engineer

Location : Remote (LATAM)

Type : Full-time

Reports to : CTO

About Foldspace AI

Foldspace AI is reimagining how users interact with software. We embed a real-time AI agent directly into SaaS applications—not just to chat, but to act. Our agent understands user behavior, triggers features, and renders UI components dynamically—turning complex interfaces into smart, intuitive, outcome-driven experiences. We are a seed-stage startup backed by leading investors, building a team of world-class engineers to create the core of our product and solve some of the most challenging problems in applied AI.

The Role

We’re looking for a Senior Backend Engineer to help architect and scale the systems behind our AI-powered agent. You’ll build performant APIs, orchestrate LLM workflows, manage contextual memory, and ensure low-latency performance across high-scale, multi-tenant environments.

This is a high-impact, hands-on role. You’ll work closely with our CTO, AI team, and product leads to develop foundational infrastructure for a truly agentic user experience.

What You’ll Do

Design and implement scalable, low-latency backend services using Java
Build and maintain APIs that support real-time agent actions and feature execution
Orchestrate LLM workflows including prompt routing, context injection, and memory management
Develop secure, multi-tenant APIs for our web application.
Leverage BigQuery, Mongo, Redis, Dataflow, and Pub / Sub for real-time analytics, caching, and messaging
Ensure observability, traceability, and reliability across agent behaviors and backend systems
Collaborate cross-functionally with AI, product, and frontend teams to deliver seamless, intelligent user flows

Tech Stack

Language : Java

Cloud : Google Cloud Platform (GCP)

Data & Messaging : BigQuery, MySQL, Mongo, Redis, Pub / Sub

AI / LLM : OpenAI, Google Vertex AI, LLM orchestration framework, vector DBs

Infra & Tooling : Docker, Terraform, CI / CD, GCP Cloud Monitoring

What You Bring

A deep sense of ownership and accountability, the ability to thrive in a fast-paced, autonomous environment, and the drive to produce high-quality features end-to-end.

5+ years of backend engineering experience, preferably in high-scale, real-time systems

Deep expertise in Java and backend architecture

Strong expertise in multi-tenant architecture, system scalability, and security best practices.

Passion for performance, reliability, and building robust systems

Bonus If You Have

Experience with agentic systems or LLM-driven user interfaces

Familiarity with LLM integrations and AI workflow orchestration in production environments

Built systems for context-aware personalization or dynamic workflow execution

Experience with GCP, BigQuery, Redis, Pub / Sub, Mongo, and event-driven systems

Familiarity with conversational memory, embeddings, or retrieval-augmented generation (RAG)

Why Join Foldspace?

We’re building one of the first real-time, agentic systems designed to fundamentally change the way people use software. This isn’t just adding AI to a product—it’s rethinking the interface itself. You’ll help build the backend that powers intelligent, contextual, action-oriented experiences. Our core advantage is our team; we are a small, focused group of senior and staff engineers, and our ability to solve complex problems with exceptional speed is our superpower. If you want to work on bleeding-edge systems with deep technical challenges and massive user impact, you’ll thrive here.

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Senior Backend Engineer • caruaru, Brazil