Senior Platform Engineer

What we're looking for:We are looking for a Senior Platform Engineer to join a team focused on the core foundations of our platform. In this role, you won't just be building features, you'll design and evolve the high-scale systems, shared frameworks, and architectural abstractions that enable our entire engineering organization to scale securely and efficiently.This is a "multiplier" role: your work will directly impact the performance, reliability, and velocity of every developer at Linx.This is a hands-on software engineering role focused on application and platform infrastructure. You'll spend your time designing and building backend services, developer-facing frameworks, shared libraries, SDKs, and core platform capabilities that other engineers build upon. While you'll work on foundational systems, this is not a DevOps, SRE, or cloud infrastructure role. The primary focus is software design and development, not operating infrastructure, managing CI/CD pipelines, or administering Kubernetes clusters.What you'll do:Architectural Evolution - Lead large-scale structural initiatives, such as optimizing our data layer and transitioning toward distributed, high-performance storage architectures.Core Frameworks & SDKs - Design and maintain internal libraries that standardize how our application interacts with critical infrastructure including messaging systems, databases, and workflow orchestration platforms (e.g., Temporal).System Resiliency - Own the reliability and optimization of our asynchronous communication and streaming layers, ensuring seamless data flow across a complex microservices ecosystem.Performance Engineering - Identify and resolve systemic bottlenecks. You'll be the go-to person for making our systems faster, leaner, and more resilient under heavy load.Developer Experience - Build the "golden paths" for our backend engineers, creating abstractions that make complex infrastructure easy, safe, and robust to use.