Staff Software Engineer Backend

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 5 years Posh has grown to a team of 65 expanded to 7M+ users secured $70m in venture funding and facilitated over $300M in transactions.

At Posh you'll set the technical direction for our backend systems. As Staff Backend Engineer you own architecture across multiple services drive platform improvements and ship production code yourself.

Staff at Posh means breadth and depth. You'll make architectural calls that affect multiple teams not only your own squad. You'll raise the bar through design reviews code review mentorship and technical leadership across functions. And you stay close to the work — implementation matters as much as architecture at this level.

This is an in-person role at our New York City office in SoHo.

• Own backend architecture across multiple services and team boundaries from design through implementation.

• Write production code daily and set the standard on quality reliability and engineering practice.

• Partner with engineering leads and product managers to scope large initiatives and define what "done" actually means.

• Improve scalability performance and reliability as the platform grows.

• Identify and clear technical debt across teams not only within your immediate scope.

• Build security and observability into systems from day one rather than bolting them on later.

• Build with data in mind: instrumentation pipelines and tooling that surface meaningful insight for organizers and the business.

• Mentor engineers across levels and shape technical culture through reviews design discussions and direct coaching.

• Help us hire well — participate in technical interviews and calibration.

• 8+ years of backend engineering experience including time as a Staff Principal or technical lead.

• Has designed and delivered systems that span multiple services or teams with clear ownership of the outcome.

• Deep expertise in backend systems: APIs data modeling distributed systems event-driven architecture. Strong working knowledge of the full stack.

• Proficient in technologies relevant to our stack (e.g.Java Node.js PostgreSQL MongoDB AWS or similar cloud providers).

• Has scaled platforms operationally not just designed them on paper. You've watched performance regress under load run incidents and evolved architecture that was already in production.

• Pragmatic about technology choices. You pick the right tool for the problem and can defend the tradeoff.

• Communicates technical tradeoffs clearly to engineers product and business leaders.

• Mentors and raises the engineering bar for the people around them.

• Experience at a consumer social or marketplace company is a plus — those are the users we build for.

When applying please include links to your GitHub profile or a portfolio of past projects.

Posh provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race color religion age sex national origin disability status genetics protected veteran status sexual orientation gender identity or expression or any other characteristic protected by federal state or local laws.

This policy applies to all terms and conditions of employment including recruiting hiring placement promotion termination layoff recall transfer leaves of absence compensation and training.

Posh is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. Please let us know if you need assistance or accommodation due to a disability

What We Do

Posh is the first social media platform dedicated to real-life social experiences. We have democratized event creation making it easy for anyone to host events and empowering organizers to curate unique experiences. In doing so Posh enables consumers to discover social events in their community connect with peers around shared interests and start and scale their own social communities.

Why Work With Us

At Posh we're not just building an event platform—we're crafting a movement to end loneliness by fostering meaningful in-person connections. Born from the vibrant energy of NYC's event scene our mission is to empower organizers and communities to create unforgettable experiences.

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