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Senior Software Engineer

Posh

Salary not specified
Dec 4, 2025
New York, NY, US
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Posh aims to solve the problem of digital loneliness by enabling users to become event organizers, build communities, and foster real-world human connections through in-person events. The platform provides tools for creating, marketing, and monetizing these communities.

Requirements

  • Strong expertise in a specific area (e.g., frontend, backend, or infrastructure) while maintaining broad knowledge of the full stack.
  • Proficiency in relevant technologies (e.g., React, React Native, Typescript, AWS or similar cloud providers), with experience in either mobile app development or backend systems.
  • Experience with scalability, performance optimization, and building tools that support data-driven decision-making.

Responsibilities

  • Lead the architecture design and implementation of complex features.
  • Demonstrate full stack experience with specialization in either frontend, backend, or infrastructure while contributing to broader projects.
  • Collaborate on architecture and technical decisions that influence the direction of the platform, ensuring scalability, performance, and user-focused improvements.
  • Focus on performance optimization and system reliability, especially as our user base grows.
  • Build with data and analytics in mind which provides actionable insights for business leaders and event organizers.
  • Drive experimentation with MVPs, balancing rapid iteration with long-term sustainable growth and developer experience.
  • Contribute to either frontend design systems, database design, or dev ops/infrastructure to ensure scalable, secure, and maintainable systems.

Other

  • 5+ years of experience leading complex technical projects with significant business impact.
  • Strong problem-solving skills and a passion for creating products that connect people in the real world.
  • Ability to lead initiatives, mentor others, and communicate effectively across technical and non-technical teams.
  • Experience working at consumer, social, or marketplace companies is a plus, as it speaks to our user-centric values at POSH.
  • This is an in-person position at our New York City office located in the heart of SoHo