Senior Full Stack Engineer, Client Platform

This is a fully remote position, open to applicants in United States.

📋 Description

• Design and enhance GraphQL schemas within a federated graph, including server-driven UI contracts for both mobile and web applications.

• Identify breaking schema changes, coordinate migrations with leads from iOS, Android, and web teams, ensuring generated client models are kept in sync.

• Develop, scale, and optimize GraphQL APIs, RPC endpoints, and SQL queries.

• Create front-end applications and shared libraries utilizing React and TypeScript.

• Develop fast and accessible web applications.

• Collaborate with product and design teams to architect and deliver customer-facing features.

• Employ observability tools to diagnose issues and enhance guest experiences.

• Establish and refine Datadog monitoring and alerting systems.

• Recognize technical debt, suggest solutions, and maintain high code quality standards.

• Identify production bottlenecks and risks while driving improvements for platform scalability.

• Mentor colleagues through code reviews, pairing sessions, and documentation efforts.

• Engage in the design, architecture, and delivery of features within an agile team environment.

• Compose comprehensive tests for both features and bug fixes.

• Collaborate with QA to enhance automated testing pipelines and CI/CD workflows.

• Utilize Claude Code in daily development activities.

• Perform additional duties as necessary.

⛳️ Requirements

• A minimum of 5 years of experience in software engineering.

• Proficient in JavaScript, TypeScript, and React, with strong UX instincts.

• Over 2 years of experience in designing and evolving GraphQL schemas for multi-client product surfaces.

• Proficient in HTML, CSS, and browser environments, including DOM, events, and platform APIs.

• A solid foundation in computer science principles, including data structures, distributed systems, algorithms, and software design.

• Understanding of large-scale production systems, including load testing and tracing.

• Experience in investigating and resolving production performance regressions, including CPU hotspots and latency in high-throughput services.

• Familiarity with on-call rotations for production services and managing release cycles from start to finish.

• Ability to produce clear technical documentation, including technical specifications, runbooks, and cross-team design documents.

• Experience in API development using Node, Bun, Phoenix, Ruby on Rails, FastAPI, or Laravel.

• Background in building and integrating multi-client or white-label platforms, incorporating geo-based routing and brand-specific configurations.

• Experience with Kubernetes and containerized services.

• Proficient with terminal-based development, Git, and GitHub or similar platforms.

• Familiarity with testing frameworks such as Jest, Vitest, ExUnit, RSpec, or pytest.

• Nice to have: experience with Apollo Federation at scale, Absinthe, iOS or Android development using Swift or Kotlin, hexagonal architecture, domain-driven design, relational databases, background job processing, asynchronous event infrastructure, open-source contributions, startup experience, or a passion for sports/esports.

🏝️ Benefits

• Competitive compensation package.

• A fun and relaxed work environment.

• Education and conference reimbursements.

• Opportunities for career advancement and mentoring others.

• Competitive base salary.

• Bonus eligibility for most non-sales roles.

• Best-in-class benefits for eligible employees.

• Personalized support options, expert guidance, and always-available tools promoting physical, financial, and emotional well-being.