Senior Software Engineer (Backend)

What we do Adaptive is a vertical AI company of 50, building the agentic operating system for the $2 trillion U.S. construction industry. We work with over 1,000 customers, partner with over 50 accounting firms, and have raised $26m from Emergence, a16z, and other top funds. Why join us? Win a massive category that's up for grabs. Construction is among the least digitized industries left, and no AI king has been crowned. With our momentum, team, and backing, we are in position to be that company Build a moat that compounds. We orchestrate multi-stakeholder workflows across an industry that today runs on paper, email, and phone calls. Every process we manage generates data no one else has. That data makes each new use case easier to expand to, while building a compounding moat Work with the rare team that can pull this off. Winning here takes deep construction knowledge and deep AI fluency in the same room. That intersection is rare, and we have it with backgrounds across finance, technology, and construction Serve the people building the world around you. Your favorite local café. The new house on the corner. The massive new skyscraper at Central Park South. All built by our customers: skilled, creative people who have spent their lives bringing neighborhoods to life About the role We are excited to share this opportunity to join our growing team at Adaptive! Your technical expertise will be instrumental in guiding the direction of our engineering efforts and ensuring the delivery of high-quality software. Reporting to the VP of Engineering, you will work closely with our engineering and product team of 20, playing a key role in the architectural design, development, and optimization of our products. Responsibilities Own the execution and delivery of backend- and infrastructure-focused projects in collaboration with the product and design team Ensure backend systems are secure, scalable, resilient, and performant as we grow Align technical solutions with business needs and product vision Drive technical discussions and decision-making processes, ensuring alignment with overall company goals and technology strategy Lead by example in writing high-quality, maintainable, and robust code Qualifications 5+ years of experience in software engineering, with a proven track record in SaaS, fintech or related fields Deep expertise in backend development, including service architectures, API design, data modeling, and modern software development practices Demonstrated problem-solving skills and a passion for tackling complex technical challenges What we offer Competitive salary plus meaningful equity Comprehensive health, dental, and vision insurance 401(k) match and flexible PTO policy A seat at the table in a rapidly scaling vertical AI startup Unlimited opportunities for professional growth and leadership In-office mandate This role requires you to work Monday - Thursday in our sunny Union Square office.