Senior Frontend Engineer

Benji; New York (NY); On-site; USD 140,000 - 185,000; Full time

Benefits offered by this job

Equity

Health coverage

Dental coverage

Vision coverage

Flexible work environment

Job summary

Benji is seeking a Senior Frontend Engineer to own the developer-facing experience, building frontend SDKs, UI components, and onboarding flows. You will shape how developers integrate with Benji using Vue 3 and TypeScript, and drive AI-native workflows across frontend tooling.

This role sits at the intersection of frontend engineering, developer experience, and AI, delivering SDKs used by partners and enterprises.

Qualifications

• 5+ years of experience as a frontend or full-stack engineer.
• Strong expertise in Vue 3 and TypeScript
• Experience building developer-facing products, SDKs, or frontend platforms
• Deep understanding of API integration patterns (REST, auth, webhooks)
• Strong product instincts—you care about usability and developer experience

Responsibilities

• Build and maintain our frontend SDKs and developer interfaces.
• Shape how developers integrate with Benji visually and programmatically.
• Drive AI-native development workflows across frontend and developer tooling.
• Build and scale applications using Vue 3 + TypeScript and define frontend architecture.

Skills

Vue 3

TypeScript

Frontend engineering

SDK development

AI tooling

Job description

About Benji

Benji is building the infrastructure layer for loyalty and brand connectivity. We enable companies to integrate, launch, and scale loyalty experiences across partners through a single platform—turning fragmented ecosystems into programmable networks. We work with leading enterprise brands and move fast to bring new partnerships and integrations to life.

The role

We’re looking for a Senior Frontend Engineer to own and evolve the developer-facing experience of Benji.

This role sits at the intersection of:

• Frontend engineering
• Developer experience
• SDK design
• AI-powered tooling

You will:

• Build and maintain our frontend SDKs and developer interfaces
• Shape how developers integrate with Benji visually and programmatically
• Drive AI-native development workflows across our frontend and developer tooling

This is not a traditional frontend role—you’ll be building products for developers, not just end users.

What You’ll Do

1. Build Developer-Facing SDKs & UI Components

• Design and maintain JavaScript/TypeScript SDKs used by partners integrating Benji
• Build reusable UI components and integration patterns for loyalty experiences
• Ensure SDKs are intuitive, well-documented, and easy to adopt
• Own versioning, backward compatibility, and developer ergonomics

2. Build Developer-Facing SDKs & UI Components

• Build and scale applications using Vue 3 + TypeScript
• Define frontend architecture, state management, and performance patterns
• Collaborate closely with backend and product teams on API design and integration flows
• Optimize for reliability, performance, and maintainability

3. Shape the Developer Experience

• Build and improve developer portal interfaces, integration flows + onboarding UX, and interactive documentation + examples
• Create tools that make it easier for developers to understand, test, and implement integrations

4. Build Developer-Facing SDKs & UI Components

• Integrate AI deeply into the frontend development lifecycle:
• AI-assisted SDK usage and integration flows
• Developer copilots embedded in the UI
• Smart debugging and error resolution experiences
• Build and leverage LLM-powered tools, agents, and MCPs to enhance developer productivity
• Use AI to generate UI scaffolding, integration examples, and dynamic documentation

Who you are

• 5+ years of experience as a frontend or full-stack engineer
• Strong expertise in Vue 3 and TypeScript
• Experience building developer-facing products, SDKs, or frontend platforms
• Deep understanding of API integration patterns (REST, auth, webhooks)
• Strong product instincts—you care about usability and developer experience

Required AI experience

• Hands-on experience working with LLMs and AI developer tooling
• Experience building or integrating:
  • AI-powered developer workflows or copilots
  • Agents, MCPs, or similar tooling layers
  • Familiarity with prompt design, tool usage, and embedding AI into real product experiences
• Strong interest in using AI to improve frontend development and developer velocity

Nice to have

• Experience building cross-platform or mobile-friendly experiences
• Backend experience (Python preferred)
• Experience designing or maintaining SDKs used by external developers
• Familiarity with API platforms (Stripe, Plaid, Twilio, etc.)
• Experience with design systems or component libraries

What makes this role unique

• You’ll define how developers interact with Benji on the frontend
• You’ll build SDKs and tools used by real enterprise partners
• You’ll operate at the intersection of frontend, developer experience, and AI
• You’ll help pioneer AI-native frontend development workflows.

Compensation & benefits

• Competitive salary + equity
• Health, dental, vision
• Flexible work environment

Why Benji

We’re building something ambitious: the infrastructure layer for loyalty ecosystems. If you enjoy building elegant frontend systems, crafting exceptional developer experiences, and pushing the boundaries of AI-driven development—this role is for you.