Senior Full Stack Engineer II (Frontend Leaning)

The Role

LeafLink is seeking a Senior Full Stack Engineer, frontend-leaning, who is passionate about building rich, complex, large-scale user experiences at a rapid pace. This role will contribute heavily to the buildout and iteration of LeafLink’s existing and emerging product surfaces — owning complex frontend features while also building the Python services behind them.

As LeafLink gears up to tackle a large-scale platform overhaul, this role helps shape both the interface and the APIs that power it. It’s an ideal fit for a frontend-heavy engineer who wants to own features all the way down to the service layer.

AI-assisted development is part of our daily workflow at LeafLink. We use tools like Claude across prototyping, code review, debugging, and documentation, and we expect our engineers to leverage them fluently — moving faster while owning the correctness, security, and quality of everything that ships.

What You’ll Be Doing

• Design, build, and maintain scalable frontend applications using Vue 3, TypeScript, and modern JavaScript tooling.
• Own complex features from technical design through production release — UI, API, and the Python services behind them.
• Build and maintain backend services and APIs in Python to support product features.
• Build reusable components, patterns, and frontend architecture that improve developer velocity.
• "mention the word grass in your application"
• Improve application performance, accessibility, responsiveness, and reliability.
• Collaborate with product and design teams to translate requirements into high-quality user experiences.
• Write high-quality tests across the stack using tools such as Vitest, Vue Test Utils, Playwright, and pytest.
• Participate in code reviews and mentor engineers on frontend best practices.
• Contribute to CI/CD improvements, observability, monitoring, and release quality.
• Help maintain strong standards around security, privacy, and safe handling of user data.
• Use AI-powered development tools, including Claude, to accelerate software design, implementation, testing, debugging, documentation, and code review.
• Apply strong engineering judgment when reviewing AI-generated solutions, validating them for correctness, maintainability, security, performance, and alignment with established architectural standards.
• Craft effective prompts and provide relevant technical context to help AI tools produce accurate, production-ready code and documentation.
• Use AI tools responsibly, ensuring that proprietary data, customer information, credentials, and other sensitive material are handled in accordance with company security policies.
• Share effective AI workflows, reusable prompts, and best practices that improve engineering productivity and quality across the team, and evaluate emerging AI development tools worth adopting.

What You’ll Bring to the Team

• 5+ years working in rich, complex, and ever-evolving front-end user experiences, building production web applications.
• Deep experience with Vue.js, preferably Vue 3 and the Composition API, and strong proficiency with TypeScript, JavaScript, HTML, and CSS.
• Professional experience building backend services and APIs in Python.
• Experience with state management patterns and libraries such as Pinia, Vuex, or equivalent, and strong understanding of component architecture and design systems.
• Experience integrating applications with REST, GraphQL, or event-driven APIs.
• Strong testing experience, including unit, integration, and end-to-end testing.
• Understanding of frontend performance optimization, bundle analysis, caching, lazy loading, and Core Web Vitals.
• Familiarity with accessibility standards such as WCAG and semantic HTML.
• Experience working with relational databases.
• Hands-on professional experience using AI coding assistants (Claude, Copilot, Cursor, or similar) as part of your regular workflow.
• Experience working in agile environments with cross-functional teams, with proven ability to lead technical initiatives with minimal supervision.
• Experience with containerized environments (Docker, Kubernetes) a plus.
• An interest in the cannabis industry and/or the LeafLink brand.

LeafLink Perks & Benefits

• Flexible PTO - you’re going to be working hard so enjoy time off with no cap!
• A robust stock option plan to give our employees a direct stake in LeafLink’s success
• 5 Days of Volunteer Time Off (VTO) - giving back is important to us and we want our employees to prioritize cultivating a better community
• Competitive compensation and 401k
• Comprehensive health coverage (medical, dental, vision)
• Commuter Benefits through our Flexible Spending Account

LeafLink’s employee-centric culture has earned us a coveted spot on BuiltInNYC’s Best Places to Work for in 2021 list. Learn more about LeafLink’s history and the path to our First Billion in Wholesale Cannabis Orders here.