Note: The job is a remote job and is open to candidates in USA. 3Play Media is a technology company making video accessible to everyone. They are looking for a Principal-level engineer to join their Growth team, focusing on building and managing infrastructure for their Remix product and Astro marketing site while enhancing the development platform for the entire company.
Responsibilities
- Build up our agent tools and workflows — custom Claude skills, MCP servers, agent loops, and the developer-experience scaffolding around them — so every engineer is meaningfully faster, and so non-technical team members can safely ship content changes and agent-coded pages using Claude Code
- Do real product work in our Remix and Astro applications alongside the rest of the Growth team — building product pages, managing our design systems, and improving marketing page layouts
- Dive into our infrastructure to support agents and app development — including Cloudflare (Workers, routing, edge config), Sanity CMS, GitHub Actions, and the product deployments we manage with Werf / Helm / Kubernetes
- Keep our frontend foundation modern, sane, and beautiful
- Set up monitors, tests, metrics, dashboards, and traces so we have confidence in page weight, SEO, uptime, accessibility, and visual regressions
Skills
- 8+ years of front-end and infrastructure-adjacent web development, with deep experience in at least one modern React meta-framework (Remix, Next, Tanstack Start, or similar)
- Active, daily use of AI coding agents in your real work (Claude Code, Cursor, Codex, or similar), with a track record of building the harness — not just using it. Your own rules, skills, MCP servers, subagents, or agent loops
- A high-agency, bias-for-action way of working. If we hand you a problem outside your immediate stack — a Cloudflare Worker, a Helm chart, a database schema — your default is to roll up your sleeves and figure it out
- Cloud fluency with Cloudflare (Workers, Pages, DNS, R2, edge config) and AWS (S3, CloudFront, Lambda@Edge, Route53, IAM, ECS)
- Experience setting up deployments and preview environments on GitHub via GitHub Actions or similar
- A track record of leading non-trivial frontend migrations — framework upgrades, theme foundations, build-tool swaps, monorepo restructures — without stalling product work in the process
- Smart opinions about the package ecosystem, dependency hygiene, lockfile discipline, and the cost of every package you add
- Understanding of a headless CMS and marketing SEO needs — Sanity preferred, but experience with Ghost, Contentful, WordPress headless, or similar is great
- Strong API and database schema design skills
- Empathy and communication skills — you'll work closely with marketing, design, product, and engineering to align on requirements and translate them into direct, actionable work
- A design sensibility — you can tell when something looks off before a designer does, and you care enough to fix it
- You've shipped animation-heavy marketing or product pages with Framer Motion, Lottie, Remotion, Rive, or similar
- You've maintained a public-facing site with a meaningful Lighthouse / Core Web Vitals budget
- You've built or contributed to internal developer tooling that other engineers actually love using
- Experience with Kubernetes and Terraform
- Experience with a Rails monolith environment
Benefits
- This role is bonus eligible
- Remote friendly— Boston Office
Company Overview
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