Farhan Zarif

Software Developer at Ledgercross

In shadows draped, a tale unfolds, Apathy's touch, it holds. Tapestry of void, time has sold A story forever told

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Dhaka, Bangladesh

GitHubfarhan-9820

14 public repos, 58 contributions in the last year

vivamus moriendam est

Ask me about

Algorithms
Machine learning
Deep learning
Bioinformatics

Currently

Working on my thesis

Fun fact

My seniors are n+1 while I am n³.

Say hello

farhanzarif98@gmail.com

Projects at Ledgercross

InvoicePilot

Complete, Q3 2026

Audit-ready invoice operations for finance teams: capture, extract, review, approve, and cryptographically seal every invoice.

React
Fastify
PostgreSQL
+3

Role: Software Developer

Audit-ready invoice operations for finance teams: capture, extract, review, approve, and cryptographically seal every invoice.

Built billing and accounts receivable on SolidInvoice with per-business isolation, Supabase MFA and password reset, firm portfolio metrics, role-based access and the redesigned landing page.

AI invoice OCR and field extraction
Fraud and duplicate checks before approval
Approval workflow scoped per business
Every invoice sealed on-chain

React
Fastify
PostgreSQL
FastAPI
BullMQ
Solidity

Contract Risk Operations Agent App

Ongoing, Q3 2026

Turns signed contracts into monitored workflows: extracts terms, tracks obligations and renewal deadlines, raises risk events, and routes actions through human approval.

FastAPI
SQLAlchemy
Next.js
+3

Role: Software Developer

Turns signed contracts into monitored workflows: extracts terms, tracks obligations and renewal deadlines, raises risk events, and routes actions through human approval.

Built the AI core: versioned extraction with a review queue, pgvector embeddings, hybrid retrieval with a reranker, grounded Q&A with citations, prompt-injection defenses and a CI-gated evaluation benchmark.

Contract ingestion and term extraction
Deterministic obligation and renewal tracking
Risk events with approval gates
Multi-tenant roles with an audit log

FastAPI
SQLAlchemy
Next.js
Gemini
Document AI
Clerk

Office Management SaaS

Complete, Q3 2026

Multi-tenant SaaS for office operations: one record for who is present, who is out, what is owed, and what needs a decision today.

Next.js
React
Supabase
+2

Role: Software Developer

Multi-tenant SaaS for office operations: one record for who is present, who is out, what is owed, and what needs a decision today.

Built the superadmin console with a safe two-step organization purge, org provisioning and a member roster, plus billing and email template fixes.

Attendance, leave and task tracking
Meetings, notices and anonymous complaints
Manager review queue with a full audit log
Subscription billing

Next.js
React
Supabase
PostgreSQL
SSLCommerz

Procurement Negotiation Agent App

Ongoing, Q3 2026

Procurement system where AI proposes, deterministic code verifies, policy decides, and humans approve high-impact actions.

FastAPI
SQLAlchemy
PostgreSQL
+3

Role: Software Developer

Procurement system where AI proposes, deterministic code verifies, policy decides, and humans approve high-impact actions.

Built purchase-request to RFQ creation with email drafts, consolidation and payment-terms opportunity detectors, and renewal alerts.

Supplier quote ingestion and line extraction
Controlled negotiation drafts
Evidence-backed procurement ledger
Autonomy levels, policy settings and a full audit trail

FastAPI
SQLAlchemy
PostgreSQL
Gemini
React
TanStack Router

Cash Recovery Agent App

Ongoing, Q3 2026

AI accounts-receivable assistant: finds why each overdue invoice is unpaid, drafts the collection email, tracks promises and disputes, and matches payments.

FastAPI
PostgreSQL
Next.js
+3

Role: Software Developer

AI accounts-receivable assistant: finds why each overdue invoice is unpaid, drafts the collection email, tracks promises and disputes, and matches payments.

Fixed the embedding pipeline and made CI fail loudly when a required secret is missing.

QuickBooks and mailbox sync
Blocker diagnosis with evidence
Drafts behind a human send gate
Promise tracking and payment matching

FastAPI
PostgreSQL
Next.js
Gemini
Nylas
Clerk

More from the team

Everyone