Backend Developer – AI-Native SaaS Platform

Company: LeadAI Pty Ltd

Location: Remote / Cebu-based preferred

Position Type: Full-time

Compensation: Based on experience and capability

Why Join LeadAI

This is a hands-on technical role inside an AI-native SaaS company building real-world automation software for businesses.You will not just be maintaining old systems. You will help build the backend foundation for a product that handles live customer communication, AI workflows, CRM automation, appointment setting, billing, reporting, and business operations.This is a good fit for a developer who wants responsibility, practical experience, and the chance to work on a serious AI product being used by real customers.

Build Software for the AI Era

The way businesses operate is changing fast.AI is no longer just a chatbot sitting on a website. It is starting to answer phones, qualify leads, book appointments, update CRMs, follow up with customers, and handle real business workflows that used to require admin, reception, sales support, and operations staff.LeadAI is building one of the first AI-native business applications designed for this new era.Our platform works across web and mobile and is already being used by real businesses in the real world. This is not a concept, a demo, or a side project. We are building production software for actual customers who rely on it to manage calls, leads, appointments, follow-ups, and customer communication.We are looking for a backend developer who wants to help build the infrastructure behind that.

About LeadAI

LeadAI is an AI-powered phone and workflow automation platform for businesses.Our platform helps companies handle inbound calls, outbound follow-ups, appointment booking, CRM updates, lead qualification, customer communication, and sales/admin workflows using AI voice agents and automation.We are building a serious SaaS product, not a simple website or landing page. The backend needs to support real users, live calls, CRM integrations, usage tracking, billing, reporting, multi-tenant data structures, and scalable infrastructure.We are looking for a backend developer who can help build, improve, and scale the core systems behind the platform.

Role Overview

We are hiring a Backend Developer to work on the server-side architecture, database structure, API logic, integrations, automation workflows, and performance of our AI SaaS platform.You will work closely with the frontend team, product team, and other developers to build reliable backend systems that support real-time communication, CRM automation, billing, user management, reporting, and business workflows.This role suits someone who is technical, practical, and comfortable working in a fast-moving startup environment where speed matters, but structure and reliability still matter.

Key Responsibilities

Backend Development

• Build and maintain backend services for a SaaS application.
• Develop clean, secure, and scalable APIs.
• Create backend logic for users, organisations, permissions, plans, credits, calls, contacts, workflows, and reporting.
• Build systems that support multi-tenant client accounts.
• Improve backend performance, reliability, and structure.
• Debug backend issues and fix production problems quickly.

Database and PostgreSQL

• Design and improve database schemas.
• Work with PostgreSQL and structured relational databases.
• Build efficient queries, views, functions, and database relationships.
• Improve database performance and reduce slow queries.
• Maintain strong data separation between tenants/clients.
• Support reporting and analytics data structures.

API and Integration Work

• Connect the platform with external APIs and SaaS tools.
• Build integrations for CRMs, calendars, communication tools, billing systems, and automation workflows.
• Handle webhooks, API authentication, payload mapping, retries, and error handling.
• Create clean integration logic that can scale across multiple clients.
• Document API flows clearly for the team.

AI and Automation Support

• Support backend workflows connected to AI call handling, transcripts, summaries, outcomes, and CRM updates.
• Build logic that processes call results and triggers follow-up actions.
• Help structure backend systems for appointment booking, lead qualification, and task automation.
• Work with AI-generated data and ensure it is stored, processed, and displayed correctly.

Infrastructure and Reliability

• Support deployment workflows using modern cloud tools.
• Help improve backend monitoring, logging, and error tracking.
• Identify bottlenecks in the backend, database, and API layer.
• Contribute to better development standards, code structure, and release processes.
• Help the team move quickly without creating messy or fragile systems.

Current Tech Stack

Experience with all of these is not required, but strong backend fundamentals are required.

• Node.js / TypeScript
• Next.js backend/API routes
• PostgreSQL
• REST APIs
• AI/LLM API integrations
• Git / GitHub

Required Skills

• Strong backend development experience.
• Good understanding of APIs, databases, authentication, and server-side logic.
• Experience with PostgreSQL or similar relational databases.
• Ability to write clean, maintainable, and practical code.
• Ability to debug issues independently.
• Comfortable working with external APIs and webhooks.
• Good understanding of SaaS application structure.
• Able to communicate clearly with other developers.
• Able to work in a startup environment where priorities can move quickly.

Strong Advantage

• Experience with multi-tenant SaaS platforms.
• Experience with billing, credits, subscriptions, or usage tracking.
• Experience with CRM integrations.
• Experience with real-time systems, call data, or communication platforms.
• Experience with AI/LLM APIs.
• Experience improving database performance.
• Experience working with remote development teams.

Candidate Profile

We are looking for someone who:

• Takes ownership of backend problems.
• Does not need to be micromanaged.
• Can think through systems, not just complete tickets.
• Understands that speed matters, but bad structure creates bigger problems later.
• Can work with incomplete information and still make progress.
• Can communicate blockers early.
• Is interested in building real AI software, not just basic CRUD applications.
• Wants to grow with a fast-moving AI SaaS company.

What You Will Work On

Examples of the type of work involved:

• Building backend logic for client accounts and user permissions.
• Improving database structure for leads, calls, contacts, appointments, and workflows.
• Creating APIs for frontend dashboards and mobile application flows.
• Processing AI call transcripts and call outcomes.
• Building reporting logic for call volume, appointment results, follow-up actions, and customer activity.
• Connecting external CRMs and calendars.
• Building credit and usage tracking systems.
• Supporting billing and subscription workflows through Stripe.
• Improving backend reliability and system performance.
• Helping prepare the platform for more clients and higher usage.