Senior Infrastructure Engineer

Senior Backend Infrastructure EngineerWe're looking for a Senior Backend Infrastructure Engineer to help shape and scale the foundation of Macroscope's core services and inference platforms. You'll play a key role in designing and implementing the distributed systems, infrastructure, and APIs that power our core product, while building the infrastructure needed to deploy and manage LLMs at scale.You'll lead projects focused on backend scalability, reliability, and performance, ensuring our systems can evolve alongside customer demand. You'll partner closely with the engineering team to establish best practices across cloud infrastructure, CI/CD pipelines, observability, and production operations.You'll also work closely with our ML Research team to architect and build the infrastructure needed to support our growing ML research, training, and inference workloads.As part of our small team, you'll work directly with the founders, engineers, and designer to make architectural decisions that will help define the trajectory of our product and company.Our technology stack: TypeScript/React (frontend), Go (backend), Temporal, Google Cloud (GCP), Postgres, Terraform, and custom-built AST "code walkers" in various languages (Go, TypeScript, Swift, Python, Rust).QualificationsDeep experience architecting and operating distributed backend systems at scale.Expertise in building resilient, performant, and maintainable backend services and APIs.Strong proficiency with cloud environments, ideally Google Cloud Platform (GCP), including networking, IAM, monitoring, and infrastructure as code (Terraform or equivalent).Experience building or operating infrastructure for modern LLM workloads, including inference serving, fine-tuning, and training workflows. Familiarity with techniques such as LoRA and reinforcement learning (RL) is a plus.Experience leading backend or infrastructure projects and driving architectural decisions in high-growth engineering environments.Hands-on experience with databases (SQL/Postgres), caching layers, and messaging systems.Familiarity with observability tools and practices, including logging, metrics, tracing, and alerting.You use AI tools to accelerate your work as an engineer and stay current with emerging technologies and best practices.Strong experience with Go, our primary backend language, is highly preferred.Bonus: experience with Temporal or similar durable execution/workflow orchestration systems.About YouYou are extremely high agency. We are a small startup and we intend to keep an extremely flat organizational structure for as long as possible. Instead of relying on people managers, product managers and heavy processes, we rely on exceptionally talented individuals with high agency to be self-motivated towards contributing to our mission.You want to work at an early stage startup. The default state of any startup is failure. The only way to overcome the daunting odds of making a startup venture successful is for a densely packed group of insanely hard working and talented people to work together to build something useful to and loved by customers. If you're not willing to work extremely hard on something high risk, this startup isn't for you.You act like an owner. You put immense care and craft into what you build because you take responsibility for all parts of the product. You don't walk past broken windows.You care about what we're building. Life's too short to work on something you're not passionate about. We are a small group of ambitious people who want to build something insanely great that we want to use, and that we think every company will want to use. If our mission and product don't resonate with you, we understand and would encourage you to find something that does.