Senior Software Engineer – AI-Native SaaS | Full Stack

Recruits Lab; United States; Remote; USD 140,000 - 230,000; Full time

Job summary

Recruits Lab is seeking a Senior Software Engineer to architect and ship an AI-native SaaS platform in a 100% remote setting. This role emphasizes ownership, rapid decision-making, and building from the ground up with cutting-edge AI.

You will collaborate across frontend, backend, and AI tooling, integrating LLMs and AI-powered workflows into real applications, driving multi-tenant architecture and scalable design.

Qualifications

• 5+ years of professional software engineering experience, with strong full-stack expertise.
• Proven track record building and shipping production SaaS applications.
• Backend experience with Node.js, Python, or similar technologies.
• Experience with REST APIs, relational databases, and cloud infrastructure (AWS, GCP, or Azure).
• Hands-on proficiency with AI-assisted coding tools.
• Ability to independently own complex technical projects and deliver production-quality software.

Responsibilities

• Build from zero to one: Design, develop, and launch core features across a modern, scalable SaaS platform.
• Engineer with AI: Leverage AI-native tools to accelerate development without sacrificing quality.
• Bring AI into production: Integrate LLMs, intelligent automation, and AI-powered workflows into real applications.
• Own the full stack: Develop intuitive interfaces, robust backend services, APIs, and integrations.
• Shape the architecture: Help build secure, scalable, multi-tenant systems designed for growth.
• Ship with autonomy: Take features from concept through deployment while influencing engineering standards.

Skills

Full-stack development

SaaS applications

Backend (Node.js/Python)

APIs & databases

AI-assisted coding tools

Project ownership

Tools

REST APIs

Relational Databases

Cloud Platforms (AWS/GCP/Azure)

AI tooling (Cursor/Claude Code/GitHub Copilot)

Job description

Senior Software Engineer – AI-Native SaaS | Full Stack

Location: 100% Remote

Employment Type: Full-Time

Industry: Artificial Intelligence | SaaS | Legal Technology

Build the Future of AI-Powered Software

Recruits Lab is partnering with an ambitious, early-stage AI technology company that's reimagining how an entire industry operates.

We're looking for an exceptional Senior Software Engineer who loves building, thrives on ownership, and wants to help create an AI-powered SaaS platform from the ground up.

This isn't a role where you'll spend your days in endless meetings or maintaining legacy systems. You'll work alongside product and engineering leadership, make meaningful technical decisions, and ship software that solves real-world problems.

Small team. Big ownership. Cutting-edge AI. Real impact.

What You'll Do

• Build from zero to one: Design, develop, and launch core features across a modern, scalable SaaS platform.
• Engineer with AI: Leverage Cursor, Claude Code, GitHub Copilot, and other AI-native tools to accelerate development without sacrificing quality.
• Bring AI into production: Integrate LLMs, intelligent automation, and AI-powered workflows into real applications.
• Own the full stack: Develop intuitive interfaces, robust backend services, APIs, and integrations.
• Shape the architecture: Help build secure, scalable, multi-tenant systems designed for growth.
• Ship with autonomy: Take features from concept through deployment while influencing engineering standards.

What We're Looking For

• 5+ years of professional software engineering experience, with strong full-stack expertise.
• Proven track record building and shipping production SaaS applications.
• Backend experience with Node.js, Python, or similar technologies.
• Experience with REST APIs, relational databases, and cloud infrastructure (AWS, GCP, or Azure).
• Hands-on proficiency with AI-assisted coding tools.
• Ability to independently own complex technical projects and deliver production-quality software.

Bonus Points For:

• Early-stage startup experience.
• Building AI agents, RAG applications, LLM integrations, or automated workflows.
• Experience with multi-tenant SaaS architecture, CI/CD, and security frameworks.
• Background in legal tech or other complex, workflow-driven software.

Why This Opportunity Stands Out

100% Remote. Work from anywhere within the hiring company's approved locations.

Build, don't just maintain. Help shape an emerging AI platform from its earliest stages.

Your work matters. Direct ownership, fast decisions, and visible product impact.

AI-first engineering culture. Work with a team that embraces modern AI tools and rapid experimentation.

High-impact environment. Collaborate closely with leadership and help define the technical foundation of a growing company.

Ready to Build Something Exceptional?

If you're a hands-on engineer who moves fast, thinks independently, and wants to help build the next generation of AI-powered software, we'd love to hear from you.