Senior Software Engineer- Full Stack

Crexi is reimagining commercial real estate with an AI-powered platform built to deliver smarter, more efficient solutions at every stage of the deal lifecycle. As a Senior Software Engineer, Full Stack, you will design, build, test, and ship end-to-end product features across Crexi’s platform, partnering closely with Product and Design to turn customer needs into scalable solutions.

Responsibilities:

• Design, develop, deploy, and maintain full-stack web applications using TypeScript across front-end and back-end systems
• Build high-quality, customer-facing user interfaces with modern web frameworks (Angular preferred)
• Translate designs into responsive, modern experiences across devices (desktop, tablet, mobile)
• Build and maintain backend services and APIs (Node.js/TypeScript), including:
• Scalable API design (REST and/or GraphQL)
• Authentication/authorization patterns
• Data modeling and database schema design
• Performance, reliability, and concurrency considerations
• Rapidly prototype, iterate, and ship user-facing features—balancing speed with long-term architectural integrity
• Leverage AI coding tools (e.g., Cursor, Copilot) for scaffolding, refactoring, test generation, and debugging—while critically reviewing AI output for correctness, security, and performance
• Participate in (and often lead) code reviews, raising the bar on quality, readability, and security across the stack
• Troubleshoot complex production issues with a focus on observability, performance tuning, and prevention
• Identify opportunities to improve developer/agentic experience, processes, and platform foundations (tooling, CI/CD, testing, architecture patterns)
• Collaborate cross-functionally with Product, Design, and Engineering to drive measurable impact for customers
• Mentor junior engineers through pairing, feedback, and technical guidance; contribute to a culture of pragmatic, user-focused engineering
• Author and maintain clear technical documentation for features, APIs, and system behavior

Requirements:

• Bachelor's degree in Computer Science or related field, or equivalent practical experience
• 5+ years of professional software development experience in production environments with meaningful scope/ownership
• 2+ years of hands-on TypeScript experience across front-end and back-end contexts (strong preference for deeper expertise)
• Proven full-stack capability: you have shipped features end-to-end (UI → API → data) and can own production outcomes
• Strong experience building modern web UIs using TypeScript
• Strong backend fundamentals, including API design, data modeling, and performance considerations
• Experience with source control and collaborative workflows (GitHub/GitLab), including code reviews and CI/CD basics
• Demonstrated use of AI coding assistants (e.g., Copilot, Cursor) in a professional workflow—without compromising quality
• Self-starter who independently drives outcomes, owns success metrics, and follows through
• Strong product thinking: you can balance customer experience, technical feasibility, and maintainability
• Excellent communication skills—able to explain tradeoffs and align stakeholders
• Strong debugging skills across the stack (UI, APIs, data), with a calm, structured approach to incident response
• Security- and privacy-minded engineering approach (safe defaults, least privilege, secure coding practices)
• Comfortable in ambiguity and fast iteration cycles
• Angular preferred; other modern frameworks acceptable
• startup / zero-to-one experience is a plus