About the role
Ostium is on a simple mission: make it possible for anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with full transparency. No brokers, no freezes, no hidden spreads. We’re replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built onchain. Every trade, deposit, and withdrawal is verifiable through open, auditable code. We’ve raised $27.9M+ from General Catalyst, Jump, LocalGlobe, Susquehanna (SIG), GSR, Alliance DAO, Soma Capital, Balaji Srinivasan, Meltem Demirors, and others. Overview Ostium is looking for a mid-level infrastructure/backend engineer to spearhead our ambitious efforts on the infrastructure side. This engineer will work on the following: Migrating applications from a legacy infrastructure to a robust, new infrastructure. Using 100% IaC to build, maintain, deploy, and manage applications and services. Decreasing latency, increasing visibility, and finding ways to give us an edge (real financial impact on the business). Empowering every single developer at Ostium to self-serve: deploy new applications, request new infrastructure, monitor and alert — you name it. We are building a state-of-the-art infrastructure layer that will allow engineers to self-serve 90% of their infrastructure needs. This will allow you to focus on higher-level projects and help us achieve ambitious goals. Technical
Requirements Core infrastructure fundamentals (security, networking, access control, etc.) Strong experience with Kubernetes and Kubernetes best practices Hands-on experience with Terraform, ArgoCD, GitHub Actions, Docker, Dagster, Prometheus, and Grafana Evangelist of Infrastructure as Code (IaC) Experience writing backend applications in Golang Experience with Postgres, Clickhouse Characteristic
Requirements Security Minded — Always looking to decrease security attack vectors. AI Power Users — Not a vibe coder, someone who leverages AI effectively, validates outputs, and builds guardrails. Solution Oriented — Engineers will have requests and needs; it's our job to make sure they can move as fast as possible. Prioritize and Act — Be a leader and take stock of what's needed, what will deliver the most value, and propose your own work and path forward. Humble and Willing to Learn — Be willing to learn from quants, engineers, the ops team, and everyone at this company about everything. We have no room in this company for people stuck in their ways. Winner — This is a team sport, and there is a very real scoreboard. We want people who don't care about scoring the most points. They only care