Custom Systems for Streamlined Operations

Data-driven systems built around your business to reduce manual work, improve accuracy, and streamline operations.

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Case Studies

Real systems in production

CS-01Mid-sized manufacturer

Multi-Database Financial Reconciliation Engine

The company ran on two separate databases, one at the manufacturing plant and one at the management office, and the numbers never quite agreed. Now a pipeline automatically pulls data from both databases, checks for discrepancies between departments, flags mismatches, and emails the flagged data to relevant departments for correction. Upon receiving the corrected data, the system solves the discrepancy automatically.

Impact
10h/weekreturned to the team
0unresolved discrepancies

CS-02Mid-sized manufacturer

ERP-Integrated Payment Analysis System

Payment-maturity analysis across hundreds of customer and supplier accounts was a week-long spreadsheet ritual. Now, this process is done by a system that connects directly to the company's ERP database, pulls live account data, and computes weighted-average payment terms, overdue days, and late-payment interest. The system also honors every account-specific rule and exception the business runs on.

Impact
20h/weekreturned to the team
0manual entry errors

CS-03B2B distributor

AI-Powered Email Automation

A B2B distributor's support inbox was handling constant customer emails about products and services, and every reply meant someone manually digging through the internal database for the right details. An AI-powered routing system now connects the inbox to that database: when a customer writes in, the message is passed to a custom LLM, which retrieves the relevant product information and sends back an enriched, structured reply tailored to the request.

Impact
7h/weekreturned to the team
automatedend-to-end reply handling

How a project runs

Three stages, each ending with something concrete in your hands.

  1. 01Plan

    We sit down and go over your process, map how it currently works, and design a blueprint for the solution.

    → process map · fixed-scope proposal

  2. 02Build

    We build the system around your workflow and connect it to a copy of your real data. It then runs alongside your existing process, with results compared week by week — once the outputs consistently match, we make the switch together.

    → a verified system in production

  3. 03Run

    Handover with documentation your team will actually use, monitoring that flags drift before you notice it, and iteration as the business changes. You own the system; I keep it healthy.

    → monitoring · maintenance · iteration

About Zerfo

Zerfo exists to remove unnecessary friction from business operations. Many companies rely on disconnected databases, spreadsheets, reports, and manual processes to keep daily work moving. Zerfo develops custom systems that bring these elements together, reduce repetitive work, improve accuracy, and make operational data easier to use. Each solution is built around the tools and processes already in place, allowing businesses to improve how they operate without replacing the infrastructure they rely on.

Python · JavaScript · SQL · PostgreSQL · ERP & database integrations · FastAPI · REST APIs · LLM Customization · Docker · Django

FAQ

Which processes are worth automating?

Anything repetitive that follows rules someone can state: accounting work, report preparation, data entry, inbox triage, payment tracking. If your team does it every week and dreads it, it's a candidate — and the mapping stage tells us honestly when automation is not worth it.

Do we have to replace our existing software?

No. The system is built around what you already run: your ERP, your databases, your spreadsheets. The system connects to them instead of replacing them, so nobody relearns their job.

How much does a project cost?

Project scope and pricing are agreed upon after our initial consultation. Payment is only due after the system has been delivered and we've confirmed together that it works as agreed.

What happens to our data?

Systems run inside your environment wherever possible, and access is scoped to exactly what the workflow needs. When an external service such as an LLM API is involved, we decide together what may leave your systems and what never does.

What if it breaks at 2 a.m.?

Monitoring notices before you do. Every system ships with health checks and alerts, so most issues are fixed before the workday starts. In the case of unexpected problems, support is provided within 24 hours.

Where do you work from?

From Istanbul — in English and Turkish, either on-site or remote.

Have a repetitive task taking up too much of your team’s time?

Let's schedule a free consultation. I'll create a blueprint to solve your problem, and you can decide if it's suitable for you.

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