Senior Software Engineer, Backend Remote

Infinityy is the most advanced property technology platform transforming the way real estate is marketed, experienced, and sold. Our AI-powered assistant conducts interactive tours, answers questions in over 70 languages, and captures valuable insights 24/7—empowering real estate professionals to engage buyers anytime, from anywhere. Infinityy creates collaborative virtual environments where prospects can explore properties alongside agents, friends, and family in real time, making the home buying journey more informed and connected.

We are a company founded on the belief that modern AI isn’t just a feature—it’s a force multiplier for the entire business. From engineering to operations to customer experience, we leverage the most advanced AI tools and coding agents to accelerate development, enhance quality, and deliver value faster. Every team member works in an environment where AI is deeply integrated into daily workflows, enabling rapid iteration and high autonomy.

As a seed-stage startup, we move quickly, iterate constantly, and rely on team members who thrive in ownership-driven, fast-paced environments. If you want to build the future of real estate using cutting-edge technology, Infinityy is the place to do it.

We are looking for a Senior Backend Software Engineer who will help architect and build the core backend systems powering our real estate discovery platform and AI-driven user experience. You will work closely with product, design, and AI/ML teams to shape the platform’s foundation, scale our services, and ensure reliability and performance. This is a hands-on role ideal for someone who enjoys early-stage ownership, greenfield software architecture, and building flexible systems that support rapid iteration.

• Design, build, and maintain backend services and APIs supporting Infinityy’s core platform and AI-driven features
• Architect scalable solutions in C#/.NET, integrating with both SQL and No
  
  SQL data stores (Microsoft SQL Server, MongoDB, etc.)
• Develop cloud-native services and workflows on Azure or AWS, leveraging tools such as Functions, Data Factory, Service Bus, Event Grid, Lambda, or equivalent
• Collaborate with the AI team to integrate LLMs and agentic frameworks (Lang Chain, Lang Graph, Haystack, CrewAI, Auto Gen, AI Foundry)
• Own the design and execution of data pipelines, event-driven systems, and background processing workloads
• Build for reliability, observability, resilience, and strong security practices
• Contribute to Dev Ops workflows, CI/CD pipelines, release automation, and infrastructure management
• Mentor other engineers and shape engineering best practices and culture
• Participate in product discussions, roadmap planning, and feature scoping—your voice will matter

• 5+ years of professional backend software development experience.
• Recent, real-world experience using AI coding agents and developer tools, such as Claude Code, Git Hub Copilot, Cursor, or similar, as part of your day-to-day engineering workflow.
• Strong proficiency in C#/.NET and building production-grade APIs and services.
• Hands-on experience with relational and No
  
  SQL databases (SQL Server, PostgreSQL, MongoDB, etc.).
• Experience building and deploying applications on Azure or AWS.
• Familiarity with cloud-native tools (Functions/Lambda, Service Bus/SQS, Event Grid/Event Bridge, Data Factory/Glue).
• Solid understanding of distributed systems, system design, and event-driven architecture.
• Strong sense of ownership and comfort working in a fast-paced, seed-stage environment.
• Excellent communication skills and ability to collaborate across disciplines
• Experience with Typescript or Python (preferred)
• Experience integrating AI systems, LLMs, embeddings, RAG pipelines, or…