POSH develops data-center projects combining existing electrical infrastructure, on-site generation, storage, and intelligent energy control for AI load growth. Backed by Y Combinator.
About the role
We're looking for a Senior Backend Engineer to help build and scale the systems behind Posh's platform. You'll take ownership of backend services already running at real scale, with organizers and attendees on the other end of everything you ship. This is a hands-on IC role. You'll design APIs and services, make architecture calls that hold up under load, and push code quality up across teams beyond your own. You'll also mentor engineers earlier in their careers.
What they're looking for
- 5+ years of backend engineering experience, with a track record of shipping production systems in fast-paced environments
- Deep expertise in backend fundamentals: APIs, data modeling, distributed systems, event-driven architecture
- Proficient in technologies relevant to our stack (e.g., Java, Node.js, PostgreSQL, MongoDB, AWS or similar technologies)
- Experience with Infrastructure as Code (e.g., Terraform) and deploying containerized applications
- Has scaled systems operationally, not just designed them on paper — you've watched performance regress under load and evolved architecture that was already live
- Pragmatic about technology choices, and able to defend the tradeoffs you make
More about this role
We are all social creatures, but the dominant “social” companies today have evolved into digital loneliness machines, driving isolation, anxiety, and mental health challenges around the world.
Human connection is lost. Posh is a beacon guiding us back.
Posh enables anyone to build an IRL community based on shared interests, while connecting consumers with the communities of people just like them. Founded by event organizers who were frustrated with the growing loneliness epidemic and the tools available to build their own event brand, we’ve built the ultimate platform for launching, monetizing, and finding IRL communities of people just like you. In just 6 years, Posh has grown to a team of 70, expanded to 10M+ users, secured $70m in venture funding, and facilitated over $400M in transactions.
We're looking for a Senior Backend Engineer to help build and scale the systems behind Posh's platform. You'll take ownership of backend services already running at real scale, with organizers and attendees on the other end of everything you ship.
This is a hands-on IC role. You'll design APIs and services, make architecture calls that hold up under load, and push code quality up across...
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