Posh · 18 hours ago
Senior Software Engineer, Personalization
NYC Metro Area
Full-time
Onsite
Senior Level
5+ years expPosh is a company focused on rebuilding human connections through community-driven events. The Senior Software Engineer for Personalization will lead the development of algorithms that enhance user experiences on the platform, collaborating on technical decisions and mentoring other engineers.
Consumer SoftwareEvent ManagementTicketing
Responsibilities
Lead the productionalization of personalization and classification algorithms
Build with data and analytics in mind, to ensure continued accuracy and relevance of personalization, classification, and ranking algorithms
Translate experimental outputs (from AWS Sagemaker/Personalize) into production-ready systems, ensuring efficiency and reproducibility
Demonstrate full stack experience with specialization in 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
Design and maintain model-serving infrastructure, including APIs, batch pipelines, or streaming systems required to deploy ML models reliably
Build with data and analytics in mind, to ensure continued accuracy and relevance of personalization and classification algorithms
Focus on performance optimization and system reliability, especially as our user base grows
Drive experimentation with MVPs, balancing rapid iteration with long-term sustainable growth and developer experience
Provide mentorship to engineers, fostering a culture of growth and collaboration
Qualification
Required
5+ years of experience leading complex technical projects with significant business impact
Experience integrating LLM or ML outputs into core product features
Possesses strong specialization in backend or infrastructure systems while maintaining broad knowledge of the full stack
Proficiency in relevant technologies (IaC, AWS, Java, Python, Typescript), with experience in backend systems
Experience with scalability, performance optimization, and building tools that support data-driven decision-making
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
Preferred
Experience working at consumer, social, or marketplace companies is a plus, as it speaks to our user-centric values at Posh
Company
Posh
Create and discover events. Find your world.
51-200 employees
H1B Sponsorship
Posh has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Growth StageTotal Funding
$66.84MKey Investors
Goodwater CapitalPareto Holdings
2025-12-30Undisclosed· $35.81M
2024-07-23Series A· $22M
2023-12-12Undisclosed· $4M
Leadership Team
Eli Taylor-Lemire
Co-Founder / Chief Technology Officer
Varun Goel
Strategic Partner, Seed Investor
Recent News
alleywatch.com
2026-01-14
Business Insider
2025-10-15
Company data provided by crunchbase