{"id":32309,"url":"https://alion.io/job/posh-staff-software-engineer-backend","title":"Staff Software Engineer, Backend","company":{"id":1758015,"name":"Posh","domain":"posh.vip","url":"https://alion.io/company/posh-vip","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":250000,"max":300000,"currency":"USD","period":"year","gross":null,"usd_annual":300000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":true},{"name":"GitHub","optional":true},{"name":"Java","optional":true},{"name":"JavaScript","optional":true},{"name":"Node JS","optional":true},{"name":"PostgreSQL","optional":true}],"status":"live","first_seen_at":"2026-05-15T15:40:46Z","employer_posted_date":"2026-05-15","last_verified_at":"2026-11-07T14:13:56Z","board_verified":true,"closed_at":null,"days_open":176,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":175},"description":"About Posh\nWe 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.\nHuman connection is lost. Posh is a beacon guiding us back.\nPosh 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.\nAbout The Role\nAt 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.\nStaff 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.\nThis is an in-person role at our New York City office in SoHo.\nKey Responsibilities:\nOwn backend architecture across multiple services and team boundaries, from design through implementation.\n\nWrite production code daily and set the standard on quality, reliability, and engineering practice.\n\nPartner with engineering leads and product managers to scope large initiatives and define what \"done\" actually means.\n\nImprove scalability, performance, and reliability as the platform grows.\n\nIdentify and clear technical debt across teams, not only within your immediate scope.\n\nBuild security and observability into systems from day one rather than bolting them on later.\n\nBuild with data in mind: instrumentation, pipelines, and tooling that surface meaningful insight for organizers and the business.\n\nMentor engineers across levels and shape technical culture through reviews, design discussions, and direct coaching.\n\nHelp us hire well - participate in technical interviews and calibration.\n\nIdeal Candidate:\n8+ years of backend engineering experience, including time as a Staff, Principal, or technical lead.\n\nHas designed and delivered systems that span multiple services or teams with clear ownership of the outcome.\n\nDeep expertise in backend systems: APIs, data modeling, distributed systems, event-driven architecture. Strong working knowledge of the full stack.\n\nProficient in technologies relevant to our stack (e.g.,Java, Node.js, PostgreSQL, MongoDB AWS or similar cloud providers).\n\nHas 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.\n\nPragmatic about technology choices. You pick the right tool for the problem and can defend the tradeoff.\n\nCommunicates technical tradeoffs clearly to engineers, product, and business leaders.\n\nMentors and raises the engineering bar for the people around them.\n\nExperience at a consumer, social, or marketplace company is a plus - those are the users we build for.\n\nWhen applying, please include links to your GitHub profile or a portfolio of past projects.\nPosh 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.\nThis policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.\nPosh is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. 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