Senior Full Stack Engineer, Client Platform

Accountabilities:

• • Design and evolve GraphQL schemas within a federated graph, including server-driven UI contracts consumed by web and mobile clients.
  • Manage GraphQL schemas as versioned contracts, identifying breaking changes, coordinating migrations across client teams, and keeping generated client models synchronized.
  • Develop, scale, and optimize GraphQL APIs, RPC endpoints, and SQL queries supporting digital client experiences.
  • Build front-end applications and shared component libraries using React and TypeScript, with a strong focus on performance and accessibility.
  • Partner with product and design teams to architect and deliver customer-facing features end-to-end.
  • Use observability tools to diagnose production issues, improve user experiences, and establish effective monitoring and alerting through Datadog.
  • Identify technical debt, production bottlenecks, scalability risks, and opportunities to improve code quality and platform performance.
  • Contribute to system design, architecture, feature delivery, and technical standards within a collaborative Agile environment.
  • Develop comprehensive automated tests for new features and bug fixes, working with QA to strengthen testing pipelines and CI/CD workflows.
  • Mentor engineers through code reviews, pairing, documentation, and knowledge sharing.
  • Incorporate agentic development tools such as Claude Code into daily engineering workflows while maintaining strong quality standards.

  Requirements:

  • At least 5 years of professional software engineering experience.
  • Strong JavaScript, TypeScript, and React skills, combined with solid UX instincts.
  • At least 2 years of experience designing and evolving GraphQL schemas for product surfaces used across multiple clients, including iOS, Android, and web.
  • Strong knowledge of HTML, CSS, and browser technologies, including the DOM, events, and platform APIs.
  • Solid computer science fundamentals, including data structures, algorithms, distributed systems, and software design.
  • Experience working with production systems at scale, including load testing, tracing, performance analysis, and optimization.
  • Experience investigating and resolving production performance regressions, including CPU hotspots and latency issues in high-throughput services.
  • Experience participating in on-call rotations and owning production release cycles end-to-end.
  • Strong focus on clean architecture, maintainable code, and software craftsmanship.
  • Excellent written and verbal communication skills, with experience producing technical specifications, runbooks, and cross-team design documentation.
  • Experience developing APIs with Node.js, Bun, or another server framework such as Phoenix, Ruby on Rails, FastAPI, or Laravel.
  • Experience building multi-client or white-label platforms, including geo-based routing and per-brand configuration.
  • Experience with Kubernetes and operating services in containerized environments.
  • Comfortable working with terminal-based development tools, Git, GitHub or similar platforms, and modern code editors.
  • Experience with testing frameworks such as Jest, Vitest, ExUnit, RSpec, or pytest.
  • Experience with Apollo Federation at scale or GraphQL APIs using Absinthe is a plus.
  • Mobile development experience with Swift or Kotlin, as well as knowledge of relational databases such as PostgreSQL and MySQL, is desirable.
  • Familiarity with hexagonal architecture, Domain-Driven Development, background job processing, asynchronous event infrastructure, open-source contributions, or startup environments is a plus.
  • Passion for sports or esports is considered an advantage.

  Benefits:

  • Published salary range of $135,000–$180,000 USD annually.
  • Competitive compensation package.
  • Potential bonus eligibility for non-sales positions.
  • Comprehensive benefits for eligible employees.
  • Education and conference reimbursement.
  • Opportunities for career progression.
  • Opportunities to mentor and support other engineers.
  • Remote work environment.
  • Fun and relaxed working environment.