Senior Full Stack Software Engineer

(Founding-Adjacent | Open to High-Growth Mid-Level Engineers)

About Lift AI

Lift AI builds software and hardware that modernize how elevators are managed across a historically analog industry. Our platform supports over 7,000 elevators across 1,200+ properties, serving property owners, service providers, and consultants with data-driven tools that directly impact safety, cost, and operational performance.

Our product suite spans both sides of the market:

• AssetLIFT — a system of record for elevator assets, unifying maintenance tickets, invoices, contracts, compliance data, and performance metrics into a single source of truth for owners and consultants.

• ServiceLIFT — software and workflows for service providers, including tools like eMCP, which enables the creation and management of code-compliant electronic Maintenance Control Plans.

These platforms are powered by multiple data sources, including a patented, MCU-based IoT sensor device that provides direct, real-world operational signals from elevator equipment. Combined with service, financial, and compliance data, this allows us to build a uniquely comprehensive and trusted view of elevator performance over time.

We operate as a small, experienced, capital-efficient team focused on building durable systems that compound in value. We build deliberately against a clear product roadmap, prioritize real customer impact, and design software meant to become long-term infrastructure for the industry.

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The Role

This is a founding-adjacent engineering role with meaningful ownership over core systems, data models, and technical decisions.

We are primarily seeking a senior engineer, but we are also open to an ambitious mid-level engineer who has strong fundamentals, sound engineering judgment, and a clear desire to grow into a senior role through ownership and responsibility.

You’ll work directly with the CTO and founding team to design and build foundational layers of our platform — particularly the data models and workflows that power asset management, compliance, contracts, and analytics across thousands of elevators.

This role is ideal for someone who:

• Wants increasing ownership over core systems

• Learns quickly through responsibility and feedback

• Values thoughtful, roadmap-driven execution over churn

• Enjoys working close to product and business stakeholders

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What You’ll Be Responsible For

• Designing, building, and evolving core data models representing elevators, assets, contracts, maintenance, invoices, and compliance

• Shipping end-to-end features across the stack, from database schema through APIs to frontend experiences

• Reviewing Figma designs and identifying data requirements, modeling complexity, and architectural tradeoffs early

• Creating clear implementation plans for multi-day projects, with guidance and review as needed

• Collaborating closely with the CTO and founding team on product architecture and technical direction

• Making pragmatic engineering decisions that balance speed, correctness, and long-term maintainability

Scope and autonomy will scale with experience and performance.

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What Success Looks Like

Within your first 6–12 months, you will have:

• Taken ownership of one or more product domains (e.g., assets, maintenance, contracts, compliance)

• Improved or redesigned parts of the data model with growing independence

• Shipped features that materially improve customer workflows

• Developed stronger architectural judgment through hands-on ownership

• Progressed toward senior-level responsibility, if joining at a mid-level

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Required Experience

• 3–5+ years of full-stack development experience (senior-level candidates typically 5+ years)

• Strong experience with relational databases and complex entity relationships

• Solid understanding of data modeling, normalization, and time-based business logic

• Ability to plan and execute multi-day implementations with increasing independence

• Experience reviewing UI/UX designs and understanding backend implications

• Frontend experience with React, TypeScript, and modern JavaScript

• Backend experience building APIs with Python / Django

• Proficiency with SQL (PostgreSQL preferred)

• Familiarity with testing practices and collaborative Git workflows

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Nice to Have

• Experience with multi-tenant applications

• Component libraries (MUI, Tailwind, Ant Design, etc.)

• Docker and containerized development

• AWS or cloud infrastructure familiarity

• Monitoring and logging tools

• Third-party API integrations

• Comfort using AI-assisted development tools to move faster while maintaining quality

• Basic UX / UI sensibilities

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What We Offer

• High-Growth Role: Opportunity to grow into senior ownership in a small, experienced team

• Founding-Adjacent Exposure: Direct collaboration with the CTO, founding designer, and founder who has over 25 years experience in the industry

• Capital-Efficient Environment: Clear roadmap, thoughtful execution, and durable systems

• Coaching & Mentorship: Hands-on guidance with increasing autonomy over time

• Work-Life Balance: Sustainable pace and flexible time off

• Industry Impact: Help modernize a critical infrastructure industry at meaningful scale