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Leaflink: Financial automation for wholesale marketplace

Client: LeafLink

Duration: 1 year

Customer location: USA, New York

Industry: Fintech

Services: Back-End Development ● Data Services ● Project Management ● Third-Party Integrations

Tech stack: Apache Airflow ● AWS Redshift ● Django ● Django REST Framework ● Docker ● Gmail ● Google APIs (Sheets ● Maps) ● Python 3.7

Integrations:

Dedicated team behind the project

Olha

Project Manager

Andrii

Python Developer

Dmytro

Python Developer

Pylyp

Python Developer

The client

LeafLink is a leading B2B marketplace that streamlines operations for cannabis brands and retailers. Beyond marketplace functionality, the company provides financial tools – including cash management, credit, and risk assessment solutions – that help partners scale safely and efficiently.

Client achievements:

$479M investments raised, and $100M from the last Series D (Feb 2023)

LeafLink has raised $479M in total investments, with $100M from its latest Series D round closed in February 2023. Read more

$4.5 billion+ in annual orders processed

LeafLink facilitates over $4.5 billion in wholesale cannabis transactions each year, making it the leading B2B marketplace in the industry.

Recognised as Forbes’ Next Billion-Dollar Startup (2022)

LeafLink was featured by Forbes among the fastest-growing private companies expected to surpass the $1 billion valuation mark.

Awarded Best Fintech in Cannabis (2024)

The company earned the Green Market Report Award for Best Fintech in Cannabis, highlighting its innovation in financial infrastructure for regulated markets. Read more.

The challenge

LeafLink needed to scale its financial operations while maintaining reliability and compliance across multiple U.S. states. Rapid growth in transaction volume required new levels of automation for reporting, communication, and credit risk management. The engineering team sought additional backend capacity to optimize data flow and enable integration with third-party financial systems such as LexisNexis.

What was done

Ralabs’ Python engineers joined LeafLink’s internal team to enhance the platform’s financial automation layer and data infrastructure. The team designed and maintained microservices supporting automated sales reports, transactional communications, and credit evaluation workflows. Core data pipelines were restructured for better performance, scalability, and fault tolerance. LexisNexis integration was implemented to enable real-time risk assessment, ensuring secure and compliant financial operations.