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Senior Software Engineer, Full-Stack

U.S.A, Remote

About Us

Epic Kids is the leading digital reading platform built for kids 12 and under, trusted by millions of children, educators, and families around the world. Our mission is to inspire a lifelong love of reading by providing unlimited access to thousands of high-quality books, videos, and educational content through a safe and engaging experience. We combine technology, storytelling, and learning innovation to help every child become a confident reader.

At Epic, you’ll join a collaborative and fast-paced global team passionate about building meaningful products that make a real impact on children’s education and literacy.

Position Summary

The Senior Software Engineer, Full-Stack will own meaningful pieces of Epic's web application end-to-end—from Angular UI through PHP and Go services to MySQL—and help raise the quality bar for the engineers around you. You are an experienced engineer who works independently on complex problems, makes sound technical decisions, and pulls in the right people when a decision touches another team. You will design and ship features that span the stack, partner with product, design, data, and infrastructure to land them well, and mentor more junior engineers through code review and pair work. Our back-end is multi-language: PHP/Symfony powers our long-standing application code, and we are actively investing in Go for newer services—senior engineers help drive that evolution thoughtfully rather than reflexively rewriting what works.

This is a fully remote, US-based role working closely with a global engineering team with members in the US and China.

Key Responsibilities

  • Design and ship features end-to-end across the stack—Angular front-end through PHP/Symfony and Go back-end services, against MySQL—taking ownership from spec to production
  • Make sound technical decisions on architecture, data modeling, API design, and state management; document trade-offs and align stakeholders before significant choices land in code
  • Operate independently on ambiguous problems, breaking down scope, surfacing risks early, and shipping in safe increments
  • Partner cross-functionally with product, design, data engineering, infrastructure, and content on features that span team boundaries
  • Drive code quality through thorough code reviews, raising standards on testing, readability, and maintainability across both front-end (Angular, RxJS, NgRx) and back-end (PHP/Symfony, Go) codebases
  • Mentor junior and mid-level engineers—pair on hard problems, give actionable code-review feedback, and help them grow into larger pieces of work
  • Improve the developer experience of the codebases you touch—tooling, tests, build times, and observability
  • Leverage AI-assisted development tools to accelerate delivery, applying the same review and quality bar to generated code as to anything else, and exercising judgment about where they help and where they don't
  • Lead and contribute to technical design reviews, RFCs, and architecture discussions, grounded in data and prototypes
  • Participate in production support, lead investigations, write up post-mortems, and follow through on systemic fixes

Required Qualifications

  • Track record of owning ambiguous, multi-team features end-to-end—defining scope with PM/design, aligning infra/data dependencies, and shipping without an EM driving day-to-day execution
  • Bachelor's degree or higher in Computer Science, Software Engineering, or a related field
  • 5+ years of professional software engineering experience, including significant time shipping production full-stack features
  • Strong Angular experience (v13+ preferred), including component architecture, RxJS reactive patterns, and a state-management library such as NgRx
  • Strong proficiency in TypeScript and modern front-end fundamentals (HTML, CSS/SCSS, accessibility, performance)
  • Strong PHP experience on a modern framework—Symfony preferred, Laravel acceptable—including Doctrine ORM or equivalent
  • Proficiency designing schemas, writing performant queries, and reasoning about indexing in a relational database—MySQL preferred
  • Experience designing and operating REST (or gRPC) APIs that serve real production traffic
  • Experience writing tests at multiple levels—unit, integration, and end-to-end—and a habit of doing so by default
  • Comfort with Git, pull-request-based workflows, and modern CI/CD (Jenkins, GitHub Actions, or similar)
  • Strong written and verbal communication—able to write a design doc, run a review, and explain trade-offs to non-engineering partners
  • Track record of mentoring more junior engineers and raising the bar through review and pairing
  • Fluency in English for daily collaboration and technical documentation

Preferred Skills

  • Working knowledge of Go for back-end services—HTTP handlers, modules, concurrency primitives, the standard library—or demonstrated ability to come up to production proficiency on the job
  • Experience leading the design or migration of a service from one language/runtime to another (e.g., PHP → Go) in a production environment
  • Experience with Docker and Kubernetes (GKE) at the application-developer level—building images, debugging running pods, reading logs and metrics
  • Experience with cloud platforms—GCP preferred (GCS, Cloud SQL, Pub/Sub, Cloud Run/GKE), AWS or Azure acceptable
  • Experience with server-side rendering (Angular Universal) and the performance/SEO trade-offs it brings
  • Experience with i18n / internationalization (multi-region deployments, locale-aware content)
  • Experience operating against an observability stack—New Relic, Datadog, or similar—including building dashboards and alerts for code you own
  • Familiarity with consumer-product concerns at scale: caching strategies, CDN behavior, image/media pipelines, mobile-web performance
  • Interest in or experience with ed-tech, children's media, or content-platform work
  • Awareness of children's-privacy compliance frameworks (COPPA, FERPA) and how they shape product and data decisions

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