Senior Full Stack Engineer – Backend Leaning

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🔥 12 hours ago

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LeafLink

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2016

📦 Logistics

📣 Marketing

💼 Consulting

💰 $100M Series D on 2023-02

Logistics • Marketing • Consulting

LeafLink is a leading technology platform that connects cannabis businesses for modern, wholesale e-commerce. LeafLink facilitates streamlined commerce by providing a platform for brands to increase exposure, process orders from buyers, and access analytics. For retailers, it offers the ability to discover new products and order all brands in one online cart for free. LeafLink's ecosystem includes marketplace solutions, payments, logistics, advertising, and insights to optimize workflows for both brands and retailers. Catering specifically to licensed, wholesale cannabis operators, LeafLink simplifies processes such as payment tracking and order management, leveraging integrations with top ERP and CRM systems. Operating in over 30 markets primarily in the United States, LeafLink stands as a central hub for wholesale cannabis transactions.

📋 Description

• Design and build backend services supporting financial workflows and transaction processing using Java and modern JVM frameworks. • Own features end to end — data model, service, API, and the Angular frontend that consumes them. • Build and maintain APIs used by internal services, external integrations, and our own frontend. • Contribute to architectural discussions and evolve service-oriented, event-driven systems. • Improve system reliability, performance, and observability across the stack. • Refactor and modernize legacy systems as the platform evolves. • Troubleshoot production issues and implement long-term fixes. • Partner with product and design to translate requirements into working, well-tested features. • Participate in code reviews and advocate for strong engineering standards. • 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. • Leverage AI to understand unfamiliar codebases, investigate defects, evaluate implementation options, and identify potential edge cases or system impacts. • 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.

🎯 Requirements

• 5+ years of experience working as a backend engineer in a production environment. • Deep experience building backend services using Java and modern JVM frameworks. • Experience designing APIs and service-oriented systems. • Experience working with relational databases and large datasets. • Experience with distributed systems and event-driven architectures. • Working proficiency with a modern reactive frontend framework (Angular preferred; Vue or React experience welcome) and TypeScript. • Familiarity with containerized environments such as Docker and Kubernetes. • Hands-on professional experience using AI coding assistants (Claude, Copilot, Cursor, or similar) as part of your regular workflow. • Strong judgment about when to rely on AI tooling and when human review is essential — particularly around security, data handling, and financial workflows. • Highly self-reliant — able to unblock yourself, make sound technical decisions independently, and lead initiatives end to end with minimal supervision. • Strong debugging, problem-solving, and communication skills. • Experience in regulated industries, such as financial services or cannabis, is a plus.

🏖️ 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 match • Comprehensive health coverage (medical, dental, vision) • Commuter Benefits through our Flexible Spending Account