Senior Frontend Engineer

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. Own Frontend Architecture (Vue3 + TypeScript) * 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 and onboarding UX * Interactive documentation and examples * Create tools that make it easier for developers to understand, test, and implement integrations

4. Build AI-Native Frontend Workflows * 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, * 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

• 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

• 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

• 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.

Pay: $130,000.00 - $180,000.00 per year, * 401(k)

• Dental insurance
• Flexible spending account
• Health insurance
• Health savings account
• Parental leave
• Vision insurance

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.