CircularTree

Software Engineer
CircularTree - Project screenshot showing the main interface and features

About This Project

CircularTree is a Scope 3 emissions management and GHG tracking platform built for a client focused on sustainable supply chain solutions. The platform helps organizations detect, measure, and reduce emissions across their full value chain — including suppliers, logistics providers, transportation, and downstream product use — where Scope 3 often represents the majority of a company's carbon footprint yet remains the hardest to track. Built on Node.js and AWS serverless infrastructure with interactive React dashboards, the platform integrates Catena-X standards (EDC, Digital Twin Registry, BPN, DTR) for interoperable supply chain data exchange, alongside a data-driven framework for GHG measurement, emissions reporting, and blockchain-verified transparency. The result is a certified, scalable solution that supports net-zero goals while giving organizations and their partners actionable insight into hidden emissions across complex supply networks.

Challenges

  • Scope 3 emissions across suppliers, logistics, transportation, and product use are often invisible — yet typically make up the majority of an organization's carbon footprint.
  • Organizations lacked actionable insight from fragmented, distributed emissions data spread across partners and stakeholders.
  • Existing reporting frameworks struggled to deliver complete, accurate, and auditable Scope 3 disclosures for regulators and customers.
  • Coordinating emission reduction strategies across suppliers, partners, and customers proved complex with multiple stakeholders involved.
  • Enabling interoperable supply chain data sharing without compromising data sovereignty, including Catena-X certification and dataspace connectivity requirements.
  • Discovering and connecting to authorized EDC endpoints and managing digital twin representations of physical assets at network scale.

Solutions

  • Engineered scalable and modular backend services using Node.js, NestJS, and AWS Lambda to support traceability and emissions workflows across complex supply chains.
  • Built interactive and responsive user interfaces with React.js and Redux for emissions dashboards, partner visibility, and supply chain reporting.
  • Developed a data-driven framework to identify and track greenhouse gas emissions across the full value chain, enabling decisions that reduce emissions at the source.
  • Simplified emissions data collection, analysis, and reporting so stakeholders receive transparent, accurate, and compliant Scope 3 disclosures.
  • Integrated blockchain as a verifiable source of emissions data to reduce fraud risk and build trust among supply chain partners.
  • Integrated Catena-X EDC standards, Digital Twin Registry, and BPN (BPNL, BPNS, BPNA) for certified, interoperable supply chain data exchange.
  • Achieved Catena-X certification for interoperability under the Dataspace Connectivity framework.
  • Deployed on AWS with Amazon Cognito for authentication, RDS/MySQL for data persistence, CloudWatch for observability, and GitHub Actions for CI/CD.
  • Collaborated with cross-functional teams to align platform capabilities with net-zero aspirations and sustainable supply chain goals.

Results

  • Enabled Scope 3 emissions management for 1,000+ organizations through the platform.
  • Achieved accurate and inclusive emissions reporting to maintain regulatory compliance and stakeholder trust.
  • Helped organizations pursue net-zero targets with data-driven, source-level emissions management practices.
  • Improved supply chain transparency and traceability through Catena-X-certified interoperable data exchange.
  • Reduced partner identification errors and strengthened collaboration with standardized BPN-based business partner management.

Technologies

Frontend

React.js
Redux

Backend

Node.js
NestJS
AWS Lambda
REST APIs

Database

MySQL
AWS RDS

Infrastructure

AWS Lambda
Amazon Cognito
AWS CloudWatch
GitHub Actions

Tools

Catena-X
EDC Discovery API
Digital Twin Registry
BPN (BPNL, BPNS, BPNA)
DTR
Dataspace Connectivity
Scope 3 Emissions Tracking
GHG Reporting
Blockchain