Senior Platform Engineer

The Senior Platform Engineer at Closed Loop is responsible for building and maintaining the internal platform that enables product teams to move quickly, safely, and efficiently. This role owns the tooling, infrastructure, and automation that streamline the development lifecycle—from code to production—while ensuring high standards of reliability, observability, and security. Key responsibilities include developing libraries, CLIs, and automations that unify services and workflows;

managing AWS cloud infrastructure using infrastructure-as-code; implementing CI/CD pipelines with advanced deployment strategies; and  environments for rapid feedback. The engineer is also responsible for integrating metrics, logs, and traces into decision‑making dashboards, embedding preventative quality checks into pipelines, and leading incident management practices. Overall, the role focuses on reducing developer friction, enhancing system reliability, and embedding scalable, production‑grade practices across the engineering organization.

Built and based in Austin, Texas, we are a team of “Closers” on a mission to change the future of healthcare through AI—most visibly with Healthy, our generative‑AI app that gives people personalized insights, guidance, and peace of mind as they navigate their health journeys. Our trophy case backs up the ambition: repeated “Best Places to Work” honors from the Austin Business Journal  and “Best Startups” recognition from Built In.

We empower our teams to do their best work, offering 100% employer‑paid medical insurance for employees and dependents, flexible PTO, paid parental leave, a 401(k), and constant opportunities for learning and team‑building. We know diverse teams are stronger teams, and we embrace different backgrounds and experiences to build systems that deliver unbiased outcomes. With high trust, rigorous standards, and a mindset of continuous improvement, we innovate faster, collaborate better, and—most importantly—love the work we do.

The Big Picture ________________________________

The Senior Platform Engineer serves as the backbone of Closed Loop’s engineering ergonomics, system quality, and delivery speed. You own the glue code, services, and internal tooling that make product teams fast and safe — spanning AI‑first enablement, SRE/Dev Ops practices, AWS cloud‑native infrastructure management, pipelines, episodic environments, and IaC. You instrument the platform with actionable dashboards, automate the boring tedious parts of feature delivery, drive blameless incident management, and hard‑wire “start from production and work backwards” quality practices into the product development lifecycle to eliminate friction.

The Day‑to‑Day _______________________________

• Platform & Glue Code: Build and maintain the libraries, CLIs, and automations that unify repos, services, and workflows.
• Engineering Ergonomics & Efficiency: Reduce cognitive load; standardize golden paths, templates, and guardrails to raise team throughput.
• SRE & Dev Ops: Own reliability baselines (SLOs, error budgets), incident tooling, runbooks, and continuous improvement loops.
• AWS Cloud‑Native Infra: Design, provision, and operate scalable, cost‑aware infrastructure using IaC (Terraform/CDK) and least‑privilege IAM.
• CI/CD & Pipelines: Ship‑on‑green with progressive delivery, canary/feature flags, and deployment annotations; optimize build times.
• Ephemeral Environments: On‑demand preview stacks for every PR to shift validation left and accelerate feedback.
• Observability & Dashboards: End‑to‑end traces, metrics, logs, and product analytics wired into clear, decision‑making dashboards.
• Preventative Quality: Bake tests, policies, and security checks into pipelines so the path of least resistance is the path of best practice.

The Right Person for the job has _______________________________

• Platform‑first, AI‑first engineer. Owns the glue code, CLIs, and templates that make teams fast and safe; obsessed with engineering ergonomics and golden paths assisted by agentic workflows and automation.
• SRE/Dev Ops depth. Sets SLOs/error budgets, designs incident tooling/runbooks, and drives MTTR…