Senior Web Applications & AI Systems Engineer

(Full-Stack • Integrations • AI Architecture)

Overview

We are seeking a full-stack web application and AI systems engineer to design, build, and maintain the connected systems that power our digital experience and day-to-day operations. This role owns the full lifecycle of development, from architecture and requirements through implementation, deployment, and monitoring.

This is a hands-on engineering role. You will spend much of your time writing and maintaining production code across websites, backend services, integrations, and AI-powered workflows. You will also help define and execute the technical roadmap that supports marketing, sales, operations, and finance.

This role has direct exposure to executive leadership and cross-functional teams.

What You’ll Be Responsible For:

Hands-On Web Application Development

• Build and maintain backend services and APIs using PHP, Python, and JavaScript.
• Develop customer-facing and internal web applications that support booking, onboarding, billing, and support workflows.
• Own performance, security, and reliability of production applications.

Systems Integration & Data Pipelines

• Design and implement integrations between: CRM (HubSpot), Property and financial systems (Yardi and similar), CMS (WordPress), Payments, access control, and IoT/building systems.
• Build and maintain ETL pipelines and background jobs that sync data across platforms.
• Debug and resolve API failures, data inconsistencies, and automation issues.
• Develop internal tools and dashboards that support finance, asset management, operations, and sales teams.

AI Architecture & Intelligent Automation

• Design and implement AI-powered workflows to support: sales and lead engagement, tenant support and onboarding, maintenance diagnostics and operations workflows, financial and reporting automation.
• Build RAG pipelines using embeddings and vector databases connected to real business data.
• Implement agent-based workflows that integrate with CRM, ticketing, and internal tools.
• Productionize AI systems with proper monitoring, privacy controls, and fallback handling.

Cloud Infrastructure & Reliability

• Architect and maintain services on Google Cloud Platform (GCP), Firebase and related tools.
• Own deployments, uptime, monitoring, and performance tuning.
• Implement CI/CD pipelines and automation using tools such as GitHub Actions, Cloud Build, and Docker.
• Lead troubleshooting and root-cause analysis for production issues.

WordPress & Web Platform Ownership

• Build and maintain high-performance WordPress environments, including: custom themes and plugins, multi-site architecture, CRM, booking, and payment integrations.
• Optimize websites for speed, accessibility, and conversion.
• Support marketing and location teams with reliable, scalable web tooling.

Technical Leadership, Roadmap & Vendors

• Maintain a deep understanding of the full digital ecosystem and system interdependencies.
• Translate business requests into technical designs, requirements, and implementation plans.
• Own execution of the digital roadmap, balancing new features, system improvements, and break-fix work.
• Serve as technical point of contact for key software vendors, including: reviewing release notes, managing support tickets, evaluating platform changes and new tools.
• Maintain clear documentation of system architecture, integrations, and workflows.
• Publish release notes and support materials to communicate changes to internal teams.

What Success Looks Like

• Website performance, lead capture, and booking workflows are faster and more reliable, contributing to increased revenue generation through online transactions.
• Data flows cleanly between CRM, property management, billing, and access systems.
• Multiple AI workflows are produced and actively reduce manual work for internal teams and/or improving customer experience.
• Fewer manual data fixes and emergency break-fix situations due to improved automation and monitoring.
• Clear technical documentation exists for core systems and integrations.

Required Qualifications

• 5+ years of hands-on full-stack engineering experience in production environments.
• Strong proficiency in PHP, Python, and JavaScript.
• Experience building and consuming RESTful APIs.
• Experience with relational and non-relational databases.
• Experience deploying and maintaining systems on Google Cloud Platform (GCP).
• Strong WordPress development experience (custom themes, plugins, multi-site).
• Experience implementing AI workflows using LLMs, embeddings, vector databases, and orchestration frameworks.
• Comfort owning production systems, including debugging, monitoring, and performance optimization.

Preferred Qualifications

• Experience in real estate, coworking, hospitality, or multi-location operating businesses.
• Familiarity with Yardi, HubSpot, Stripe, Ramp or access control systems.
• Experience with CI/CD pipelines and containerization.
• UI/UX sensibility for web applications.
• Experience integrating physical systems.

Important Notes About This Role

• This is not primarily a vendor-management or configuration-only role.
• This role is best suited for engineers who enjoy working directly in production systems and solving complex integration problems.
• You will both design solutions and implement them end-to-end.

Please include a link to examples of your work (portfolio, technical documentation, architecture diagrams, or similar) in your resume.

About Expansive

Expansive offers customizable workspaces where people and companies thrive. Because we believe success is about both business and belonging, Expansive creates productive environments for collaboration and engagement in vibrant, inclusive professional communities. With 40+ locations and over 4 million SF and counting, Expansive leverages unparalleled flexibility, support, and value to help organizations maximize return from their workspace investment. For more information, visit www.expansive.com.

We are a dynamic team of people that are passionate about what we do and how we do it. We have an exceptional culture that is fast-paced, high growth, and team-oriented. We foster unconditional support, a lively atmosphere, and freedom to cultivate individual career paths. Our ideal candidate is adaptable, detail oriented, and has a positive can-do attitude. This role is geared to those who have an entrepreneurial spirit who are looking for a progressive, and meaningful role.

Benefits

• Medical

• Dental

• Vision

• Health Savings Account

• Voluntary Life Insurance

• Short Term Disability

• 401K and 401K matching program

• Parental leave