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Ikuto

Staff Software Engineer - Backend (AI Product) (San Francisco Bay Area)

Ikuto, San Francisco, California, United States, 94110

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Backend Engineer

High-Growth AI SaaS Startup SoMa, San Francisco, CA |

Full-Time | Onsite Salary: $200K$325K + Meaningful Equity (1%+)

Join an early-stage AI SaaS start-up creating an AI

application builder

that empowers business users to build custom applications where humans and AI collaborate seamlessly across enterprise systems. The company addresses complex enterprise challenges, including multi-day workflows, cross-system integrations (ERP/CRM/financial platforms), secure VPC hosting, and enterprise-grade observability, logging, identity, and compliance controls. About the Role

Were looking for a

Backend Engineer

to lead the development of backend systems and architecture. This is a rare opportunity to take ownership of core systems in an early-stage company, shaping architecture, scalability, and reliability from the ground up.

Youll tackle challenging problems like orchestrating multi-system workflows, processing large-scale data asynchronously, and safely executing AI-generated code

all while collaborating closely with the applied AI team.

What Youll Do Design and build the

core workflow engine

the orchestration layer connecting agents, data sources, and frontend views. Develop and scale the

TypeScript-based backend , handling asynchronous execution, retries, and deterministic routines. Build and maintain

integration layers

for REST APIs, SQL sources, and third-party systems. Collaborate with the applied AI engineering team to integrate automation and intelligence across systems. Define and enforce

best practices

for backend architecture, reliability, and developer experience as the company scales.

Who You Are (Must-Haves) 415 years of professional software engineering experience. Strong experience with

TypeScript, Node.js , and modern backend architectures. Experience designing

complex data models

and managing asynchronous tasks/workflows. Prior experience working in

early-stage startups

or high-growth environments. Experience integrating multiple systems, including REST APIs and SQL sources. Excited by building

scalable systems

and comfortable in a startup environment. Excellent problem-solving, collaboration, and communication skills.

Nice-to-Haves Experience building or integrating

AI / LLM-powered applications . Familiarity with

Temporal

or similar orchestration/workflow systems. Exposure to other modern backend frameworks or cloud technologies (AWS, GCP, Kubernetes).

Why Join? Competitive

salary: $200K$325K

+

meaningful equity (1%+)

in an early-stage company. Work alongside

experienced founders

who have successfully scaled AI and enterprise SaaS products. Shape the architecture and direction of a

high-impact backend system

used across complex workflows. Be part of a small,

highly motivated team

at the forefront of AI and enterprise applications.