Dynamic Pricing Engine
Configurable pricing that supports service frequency, business rules, and profitability calculations — pricing updates flow through proposals without manual rework.
Full-Stack · Enterprise Platform · 02/2023
Enviromaster
An enterprise sales workflow and pricing automation platform that turns proposal creation, service pricing, and quotation generation into a streamlined, repeatable process.
Overview
Enviromaster is an enterprise sales automation platform designed to remove the manual, error-prone work that slows down service-business sales teams. Before the platform, generating a customer proposal meant juggling spreadsheets, static pricing documents, and copy-paste workflows that struggled to scale.
The platform centralises customer proposal creation, service pricing, quotation generation, and the broader sales workflow into a single, structured system — with dynamic pricing rules and automated PDF generation built in.
My Role
I worked as a full-stack developer on the project, owning features end-to-end — from gathering requirements directly from stakeholders to shipping production code.
- Designed and built the React.js frontend, including dynamic pricing UIs, proposal builders, and customer management screens.
- Built scalable REST APIs and backend services with Node.js and Express.js to power pricing, quotations, and workflow engines.
- Modeled and optimized PostgreSQL schemas for pricing rules, service catalogs, proposals, and customer data.
- Implemented an automated PDF generation pipeline using LaTeX for proposals, agreements, and customer reports.
- Collaborated directly with stakeholders to gather requirements, troubleshoot production issues, and iterate on business logic.
Tech Stack & Architecture
Frontend
- React.js
- JavaScript
- HTML & CSS
- Responsive UI
Backend
- Node.js
- Express.js
- REST APIs
- LaTeX (PDF gen)
Database
- PostgreSQL
- Optimized queries
- Relational schema
Infra & DevOps
- Docker
- AWS
- Git
- CI/CD
Key Features
Proposal & Quotation Builder
Structured proposal creation that captures customer details, selected services, and pricing — with versioning and reusable templates.
Automated PDF Generation
LaTeX-powered pipeline that produces professional proposals, agreements, pricing sheets, and customer reports automatically from structured data.
Sales Workflow Automation
End-to-end workflow that moves a deal from initial customer entry through pricing, proposal, agreement, and hand-off — reducing manual coordination.
Scalable REST APIs
Clean, documented APIs backing every workflow — designed for performance, testability, and future integrations.
Responsive Dashboards
Frontend dashboards built for operations teams to track proposals, pricing, and workflow status in real time.
Screenshots
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Challenges & Solutions
Challenge
Pricing logic varied widely by customer, service type, frequency, and business rules — making a static pricing model unworkable.
Solution
Built a configurable pricing engine that treats rules as data, so new pricing scenarios can be added without code changes. Profitability calculations live alongside the pricing rules to keep margins visible at quote time.
Challenge
Producing professional, consistent proposal PDFs from structured data — at scale, with branded layouts and dynamic content.
Solution
Implemented an automated LaTeX pipeline that generates polished PDFs from proposal data. Templates handle branding, sections, and dynamic content blocks, so the same engine produces proposals, agreements, and customer reports.
Challenge
Translating evolving business requirements from stakeholders into stable backend workflows.
Solution
Worked directly with stakeholders to map the workflow, then modeled it as discrete API endpoints and database entities so changes could be made incrementally without destabilizing the whole system.
Outcomes & Learnings
- Cut down manual proposal preparation by automating pricing and PDF generation end-to-end.
- Deepened my experience designing flexible domain models (pricing rules as data) instead of hardcoding business logic.
- Got hands-on experience integrating non-typical tools (LaTeX) into a modern web stack to solve a real product problem.
- Built confidence working directly with stakeholders to translate ambiguous business rules into shippable software.