Sr. Frontend Engineer (ReactJS + GraphQL)
New
P
Pack.comSoftware Engineering
Buenos Aires, Argentina. Brazil. Costa Rica. Colombia. Mexico. Poland, Eastern Europe and EST business hoursFull-TimeSenior
Salary not disclosed
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Job Details
- Languages
- English
- Required Skills
- GraphQLJavascriptTypeScriptReact
Requirements
- Deep production-level experience with React and TypeScript.
- Strong understanding of modern browser APIs and rendering internals (e.g., Virtual DOM, fiber architecture).
- Advanced data fetching skills with React Query and GraphQL.
- Proven ability to build custom UI components without heavy pre-built dependency packages.
- Extensive experience building and documenting component systems in Storybook.
- Strong professional English communication skills.
- Ability to align with a schedule bridging Eastern Europe and EST business hours.
Responsibilities
- Architect, scale, and maintain high-performance React and TypeScript applications from the ground up.
- Proactively identify and resolve rendering bottlenecks, memory leaks, and layout thrashing.
- Build and optimize efficient frontend data flows and caching strategies utilizing React Query and GraphQL.
- Design and maintain a proprietary, reusable component library documented in Storybook.
- Implement fluid micro-interactions and complex web animations in collaboration with design.
- Set standards for engineering excellence through code reviews, documentation, and mentorship.
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