Senior Full Stack Engineer

Furl, Inc.; Los Angeles (CA); Hybrid; USD 120,000 - 150,000; Full time

Job summary

A technology startup in Los Angeles seeks a Senior Full Stack Engineer to build user experiences and backend systems for their SaaS platform. The ideal candidate will implement UI components in React/TypeScript and develop backend services in Go and Python. Strong web architecture knowledge and experience in cybersecurity or IT B2B are preferred. The role values collaboration in a fast-paced environment, meeting 2-3 times a week in person.

Qualifications

• Experience in building responsive and intuitive UI components.
• Proven track record in creating backend services and APIs.
• Experience with multi-tenant SaaS systems.

Responsibilities

• Implement responsive UI components in React/TypeScript.
• Develop backend services and APIs in Go and Python.
• Collaborate on data models and authentication flows.

Skills

React/TypeScript

Go

Python

Web app architectures

REST/gRPC

Database design

Job description

At Furl, we’re building the first agentic remediation platform for IT security — technology that closes the gap between identifying risk and actually fixing it. Today, most organizations surface more vulnerabilities than they can handle. We’re changing that by enabling safe, automated remediation across macOS, Windows, and soon Linux. We ingest security and operational signals, classify them into concrete remediation targets, and use an endpoint agent to collect real-time telemetry and execute fixes. Agentic workflows generate and validate fix plans, which are deployed safely at scale through policy-driven autonomy.

This is real infrastructure work with real-world impact. We’re building systems that help teams focus on what truly matters — and we’re doing it with care, clarity, and craftsmanship.

We’re a real startup with a real in-person vibe. We meet 2-3 days per week in Los Angeles to collaborate, build trust, and move fast together. It’s a fun environment, but we won’t sugarcoat it — the pace is demanding and sometimes uncomfortable through GA. We value ownership over hierarchy and believe great work comes from people who are trusted to think, experiment, and take responsibility.

What You’ll Do

As a Senior Full Stack Engineer, you’ll build intuitive user experiences and scalable backend systems that power Furl’s platform.

• Implement responsive, intuitive UI components in React/TypeScript
• Building backend services and APIs in Go and Python
• Collaborate on designing data models, authentication flows, and integrations
• Contribute to the overall system design and scalability of our multi-tenant SaaS

Your Experience

• React/TypeScript, Go, or Python experience, C/Objective-C is a plus.
• Strong understanding of web app architectures, REST/gRPC, and database design.
• Experience shipping production SaaS or internal tools at startups.
• Experience in cybersecurity or IT B2B preferred.