ERP & Operations Software
Purchasing, stock, ledger, invoicing, production, reporting — in one panel, a modular ERP built for your company.
ExploreLearned from live systems · 2026
01We move your operationsto the future, we automateyour routines.
ERP, CRM, dealer and field systems; web and mobile apps; AI integration — for companies that are growing. From MVP to enterprise, architecture-first product engineering.
References · 2023 — 2026The products and sectors whose operations we moved to software.
DESIFERP · Accounting
DOYSANAF&B · POS
CATERINGOperations
WOODWORKINGSupply & stock
TEA FACTORYProduction
E-COMMERCEAutomation
FOOD DELIVERYRealtime
ACCOUNTINGEvent-driven
10+ production systems · 5+ sectors · since 2023
Current State vs. Target State
Run it on one system — not scattered software.
The spreadsheet, the bolted-on accounting, the backend that won't scale, the "no CTO but the system keeps growing" equation — we rebuild all of it on an architecture you can actually build on.
Today's reality
- Excel + disconnected, scattered software
- Accounting and pre-accounting with no integration
- No data visibility, manual reporting
- The MVP is growing on technical debt
- The backend architecture won't scale
- No CTO, but the system keeps growing
After Merquarry
- One system, one panel, one source of truth
- Automated purchasing → stock → ledger → invoice flow
- Live reporting, live costing, live KPIs
- Production-first; a scalable architecture from day one
- Domain-driven, event-driven, traceable
- A technical partnership in a co-founder role
Our Approach
Architecture-First Product Engineering
METHOD/01
01
Domain Analysis
We understand the business, not just the code. We map the processes and surface the real bottlenecks.
02
System Design
Modular, decoupled, scalable architecture. Bounded contexts and event flows.
03
Build
A production-first approach. Observable, deployable, and reversible from the first commit.
04
Stabilization & Scaling
Monitoring, logging, CI/CD, versioning. SLA-backed maintenance and horizontal scaling.
Domain-Driven Design · Event-Driven Architecture · Bounded Contexts · Transaction Safety · Horizontal Scaling
Services
End-to-end product engineering.
We don't list services; we state what we can build. From operations software to mobile apps, from AI integration to technical partnership.
CRM & Customer Management
From lead to contract, from contract to recurring sales. A CRM run by your processes, not by your sales team.
ExploreDealer & Field Management
Multi-tenant infrastructure, role-based access, offline support.
Explore →Web Application
Enterprise panels, B2B portals, customer portfolio screens.
Explore →Mobile Application
iOS & Android, shared codebase, native performance.
Explore →AI Integration
LLM-powered process automation, RAG, document-to-data.
Explore →System Architecture & Technical Partnership
Long-term technical partnership as co-founder or fractional CTO. Architectural decisions, code review, roadmap, sprint planning.
ExploreWorkflow
Fits into your existing workflow.
Git, GitHub Actions, AWS, Vercel, the database of your choice — we build on whatever you already use. No vendor lock-in. Zero-downtime deploys. Reversible migrations. Versioned APIs.
purchasing→stock→ledger→invoice→reporting
- Domain-driven, event-driven architecture
- Traceable & auditable audit log
- CI/CD, automated tests, semantic versioning
Live system · recent activity
InvoiceSupplier → invoice batch · 2 min agoDone
StockFIFO cost updated · 4 min agoDone
ReportMonthly profit report · nowProcessing
PurchasingPO approved · 1 hour agoDone
LedgerReconciliation completed · yesterdayDone
How we work
Not from slides — learned from live systems.
Every line we write is tested in production. The technologies we use have run under load in our own products for years.
Next.js
NestJS
TypeScript
PostgreSQL
MongoDB
Prisma
Redis
Docker
React Native
Ably
Resend
AWS · GCP
Architecture-First
The system is designed first, then the code is written. The order is non-negotiable.
Production-Proven
Every system we build runs 24/7 in our own products first.
One System
No scattered software. All operations come together in one panel, on one source of data.
Product Ecosystem · live proof
Built from scratch. In use right now.
We built the products below; we run them ourselves. Live tests of the architecture we write.
D
DESIFAutomated Accounting & Decision Infrastructure
Automation of the purchasing → stock → ledger → invoice chain. A modular ERP built from scratch.
ERPAccountingMulti-tenantEvent-driven
desif.co →D
DoysanaRestaurant Operations System
Orders, POS, delivery, and finance flow in one panel. A zero-commission, flat-fee service model for restaurants.
POSDeliveryFinanceRealtime
doysana.com →Working Model
Four ways to work together.
Pick a scope based on your company's stage and the shape of your problem. We don't quote prices — we define scope.
4 models · customizable scope
Technical Co-Founder
Fixed monthly advisory · for startups
- Architectural decisions & technical strategy
- Code review, roadmap, sprint planning
- Hiring support & engineer interviews
- Investor & technical due diligence
Project-Based Delivery
From scratch or a half-finished system · our most common model
- Analysis → architecture blueprint → phased development
- Fixed scope, fixed timeline, fixed delivery
- Shipped against our own production checklist
- Migration & go-live included
Maintenance & Scaling
SLA-backed, continuously maintained systems · SMB & mid-market
- 24/7 uptime monitoring & on-call
- Patch, security, dependency management
- Horizontal scaling & performance tuning
- Monthly architecture health report
Enterprise (custom)
Multi-tenant & regulated environments · enterprise
- Tailored team & dedicated tech lead
- Multi-system integration & ESB
- GDPR / ISO compliance & audit readiness
- On-site setup & knowledge transfer
We work with serious projects. Not with half-abandoned ideas.
Move your operations to software.
Do you have a product vision, do you need architectural guidance, or are you looking for a long-term technology partnership? Let's talk.