Senior Software Engineer - Applications

**We are defining the future of the Rentals Industry** We’re a profitable, growth-stage company building industry-leading martech and data products for the PropTech space. Our focus is on our category-leading AI and data SaaS products with triple-digit growth rates. We’re a fully remote team of 100+ spread across the U.S. from coast to coast. We operate on a strict no a\*\*holes policy and are proud to have built a community of highly performant people that take our work seriously, but not ourselves. And, we're looking for exceptional people to help further accelerate our growth. While we’ve raised $30MM+ to date from some of the world’s best investors, we’re profitable with a strong balance sheet and an indefinite runway. We pride ourselves on achieving rapid growth without having to incinerate capital. **About Our Products** [ApartmentIQ](https://www.apartmentiq.io/) is the all-in-one data platform powering smarter decisions across multifamily—covering 40M units with daily property and market intelligence used for surveys, research, and revenue management. We're trusted by 65% of the NMHC Top 50. Our sister company, [MavenAI](https://www.hiremaven.ai/), delivers AI-powered marketing automation built by industry experts and integrated directly with property management systems, serving over 2M units. **Your New Team** The ApartmentIQ team is revolutionizing how property managers optimize their operations. We provide a powerful platform that centralizes critical property data, offering actionable insights and intuitive tools to enhance efficiency and decision-making. Our product empowers users to streamline everything from leasing and maintenance to resident communication and financial reporting. We leverage a modern tech stack, with a React/Tailwind frontend delivering a seamless user experience, backed by a robust Ruby on Rails backend. We believe in fostering an inclusive environment built on mutual trust, continuous learning, and a commitment to simplicity, where every engineer can contribute and grow. **The Role** We're hiring experienced full-stack engineers to build AI-native products across our ApartmentIQ and MavenAI pods. These are high-ownership roles: you'll take features from data layer to API to interface, working closely with an experienced lead or AI engineer rather than inheriting a fully-specced ticket. If you like owning ambiguous problems end-to-end—and you're excited about building product on top of LLMs and agents, not only using them to code faster—this is for you. **Responsibilities** - Own features end-to-end—data model, Rails API, and front end—in a fast-paced, agile environment. - Build product surfaces on top of LLMs and agents: ingestion, structured data, and UIs for reviewing and verifying AI-generated output. - Partner with a team lead or AI Engineer to take greenfield problems from ambiguous idea to shipped feature. - Engage with product leadership on what to prioritize and how to scope it. **Qualifications** - 6+ years of experience as a full-stack software engineer. - Strong Ruby on Rails experience, including designing and building APIs. - Proficiency with JavaScript / ES6 and a modern front-end framework (React preferred). - Comfort working across the full stack, including relational databases (MySQL). - Experience building products utilizing agentic workflows: prompting, handling non-deterministic output, and designing for human-in-the-loop review. - Solid understanding of fundamental web technologies such as HTTP, REST, and JSON. - Ability to break down complex, ambiguous problems into digestible, shippable chunks. - Thrive in fast-paced startup environments and adapt quickly to changing priorities. **Bonus Skills & Experience** - Data pipeline / ingestion and processing work—pulling in raw apartment rental data from XML files or APIs and transforming it into compelling content that helps renters choose their next home. - Experience with agentic frameworks, RAG, or LLM tool-use. - React ec…