Full-stack engineeringwith financial systems expertise.

I build SaaS products, AI-powered applications, and the financial systems behind them—using Next.js, React, Python, QuickBooks, Stripe, and Odoo when the product needs both engineering judgment and accounting context.

Discuss a software projectSee selected work
  • 10+ years in software
  • Next.js, React & Python
  • Led teams of up to seven
  • QBO, Stripe & Odoo

Products, platforms, and financial systems.

A selection spanning full-stack product engineering, AI, payments, and accounting operations.

LedgerSortFounder & full-stack engineer

Review the exceptions. Keep control of the books.

I designed and built LedgerSort as a complete SaaS product: its React interface, FastAPI backend, PostgreSQL data model, AI workflow, QBO integration, and production infrastructure. Accountants still approve every change before it reaches QBO.

  • Full-stack product architecture
  • AI-assisted review workflow
  • Production QBO integration
  • Retry-safe financial sync
Visit LedgerSort

Review queue

Illustrative product view

QBO connected

Cloud hosting

Uncategorized expense

Suggested category

Software subscriptions

96%

Office supplier

Uncategorized expense

Suggested category

Office expenses

91%

Bank service fee

Uncategorized expense

Suggested category

Bank charges

99%

3 reviewed · 0 posted automatically

Approve & sync

React · FastAPI · PostgreSQL · Groq / Llama 3.1 · QBO API

Odoo 19 SaaS · Production

From spreadsheet accounting to a reconciled ERP.

Migrated a Saudi manpower and equipment rental company from Excel to Odoo, covering its chart of accounts, opening balances, customers, vendors, invoices, bills, taxes, historical transactions, and reporting.

Source
Excel sheets
History
6–7 months
Validation
Reconciled
Status
Live in Odoo

Office Field · AI product engineering

Products built for complex, fast-moving data.

As Principal Software Engineer, I led a team of up to seven building AI-powered fintech and trading products. My work spanned product architecture, data-heavy interfaces, APIs, integrations, and delivery across the stack.

Product architectureData-rich UIAPIs & integrationsTeam delivery

What I can own end to end.

Product engineering is the foundation. Financial systems are the specialization I bring when the domain gets more demanding.

Full-stack product engineering

Production web applications and SaaS products, from interface architecture and API design through data modeling, deployment, and ongoing iteration.

  • Next.js
  • React
  • TypeScript
  • Python
  • FastAPI
  • PostgreSQL

AI and data-rich applications

AI-assisted workflows and complex product interfaces that turn model output, live data, and business rules into software people can use and trust.

  • LLM integration
  • Product architecture
  • Data visualization
  • Human review workflows

Financial systems and automation

QuickBooks, Stripe, and Odoo implementations with accounting logic, reconciliation, traceability, and operational reliability built into the workflow.

  • QuickBooks Online API
  • Stripe API
  • Odoo
  • AP/AR automation
  • Reconciliation

Ten years across products, platforms, and systems.

I have worked across frontend engineering, full-stack SaaS, AI-powered fintech, technical leadership, and finance automation. The common thread is owning difficult product work through delivery.

  1. ERP & Automation Lead

    Excel Accountancy · Full-time · Remote

    Lead ERP implementations and build internal automation for bookkeeping cleanup, monthly reporting, payroll workflows, and client operations.

  2. Founder & Financial Systems Engineer

    LedgerSort · Independent product

    Solo-built a production SaaS product across its React interface, FastAPI backend, AI workflow, QBO integration, database, and infrastructure.

  3. Principal Software Engineer

    Office Field · Full-time

    Led a team of up to seven engineers building AI-powered fintech and trading products, including data-rich interfaces and end-to-end Stripe infrastructure.

  4. Frontend Engineer

    Sofos AI · Part-time

    Built and maintained production interfaces and integrations for AI, healthcare, and education technology products.

  5. Senior Front-end Developer

    Decojent · Full-time

    Turned design systems and product requirements into responsive React and WordPress experiences for agency clients.

A product engineer who also understands the books.

I have spent more than a decade building interfaces, APIs, SaaS products, and engineering teams. My current work adds another layer: I also operate inside an accounting firm and build my own financial software.

I can contribute as a senior full-stack engineer on a broad product, then go deeper when payments, accounting data, ERP workflows, or reconciliation enter the picture.

Building a product or system that needs senior ownership?

Tell me what you are building, where it is stuck, and what a successful release needs to accomplish. I can help shape the architecture and deliver it across the stack.

Email Faiz

faaezahmd@gmail.com