Frontend Developer

Front-End Engineer – AI Security Start-Up (Series A, $38M)

Slice Talent

has partnered with a well-funded AI Agents Security start-up redefining how identity and access work in an agent-driven world.

About our customer:

We’re building the identity and access foundation for the agent-native era—a new generation of systems where AI agents act on behalf of people and organizations to perform complex, real-time tasks.

Our mission is to help developers and enterprises build, deploy, and trust agentic applications with the same confidence they have in traditional software—through secure, scalable, and context-aware infrastructure.

We’re creating real-time, in-product guardrails that make it safe to move from human-driven workflows to fully autonomous AI systems—giving teams the visibility, control, and trust they need as they go from prototype to production.

We’re a small, distributed team of repeat founders and builders from top developer, infrastructure, and security companies. Joining now means shaping both the product and the company from the ground up.

Who We’re Hiring:

We’re looking for

Front-End Engineers

who care deeply about user experience, performance, and building intuitive interfaces for highly technical products.

You’ll play a key role in designing and building the interfaces that developers and security teams rely on to understand, control, and trust AI agents in real time.

What You’ll Do:

• Design and build

high-performance, scalable front-end applications

for developer and security workflows

• Create intuitive UIs for complex systems like

identity, access control, and real-time agent behavior

• Collaborate closely with product, backend, and design teams to deliver seamless user experiences
• Develop reusable components and front-end architecture that scales with the platform
• Optimize applications for speed, usability, and clarity in data-heavy environments
• Help define front-end standards, tooling, and best practices as an early team member

What We’re Looking For:

• 4\+ years of experience in

front-end engineering

(or equivalent impact)

• Strong proficiency in

React, TypeScript, and modern front-end frameworks

(e.g. Next.js)

• Experience building

complex, data-rich interfaces

(dashboards, developer tools, admin platforms)

• Solid understanding of

APIs and backend integration

(REST, GraphQL, etc.)

• Strong focus on

UX, performance, and clean design systems

• Familiarity with

security concepts, developer tools, or AI products

is a plus

• Ownership mindset—you’re comfortable working in fast-moving, ambiguous environments

Why Join Us:

• Impact:

Build the interfaces that define how humans interact with AI agents

• Growth:

Early-stage, well-funded company with strong momentum

• Ownership:

High autonomy and real influence over product and direction

• Team:

Work with experienced builders who value quality and speed

• Mission:

Help make the AI-native future usable, secure, and trustworthy