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Sr. Software Engineer - Platform

Authentic - New York, NY, United States - In-office - posted 2026-10-22

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Authentic is a tech-enabled managing general agent (MGA) that designs and operates insurance programs for specialized business verticals including restaurants, gyms, and power producers. The company partners with brokers and carriers to deliver custom insurance solutions, with all programs running on proprietary platform infrastructure built and maintained in-house. Founded in 2022, Authentic has grown to 80+ employees across New York and Dayton, Ohio, and was named to the 2026 CB Insights Insurtech 50. As a Senior Software Engineer on the Platform team, you will lead the design and implementation of complex, multi-faceted projects that build the next generation of insurance infrastructure. You will own problems end-to-end—from problem definition through delivery—without requiring heavy direction. Your responsibilities include identifying bottlenecks and building solutions to accelerate the organization's velocity, using first-principles thinking balanced with practical judgment about priorities. You will own problems comprehensively, considering user experience, data models, scalability, operability, and metrics. You'll investigate root causes, optimize for real-world outcomes that unblock the business, and improve user experience. You will identify and implement reliability and performance improvements across the full stack: product, infrastructure, data, and operability. You will iterate on existing features to a high standard based on user feedback, and mentor and coach other engineers on the team. Authentic is a Series A company backed by top-tier investors including FirstMark Capital, Zigg Capital, Slow Ventures, Clocktower, Commerce Ventures, and Altai. The company has grown over 15x in the past year with significant market opportunity ahead. **Requirements:** - 5+ years of experience building and maintaining production systems at scale, with a demonstrated track record of sound judgment about when to move fast versus when to slow down - 5+ years building distributed systems in Python or Go - Strong understanding of modern API development best practices and design - Familiarity with AWS, infrastructure-as-code, and deployment best practices - Demonstrated high agency and ownership: you naturally clarify what "good" looks like, ask insightful questions, and drive work to completion - Track record of maintaining relentless focus on reliability without compromising velocity, ideally with experience going from 0-1 at a high-growth startup

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