Budget: 25000 UAH Deadline: 7 days
Look, there's a nuance - !!1500 UAH is not the budget for developing such a system!!, even for a normal specification, it's below the working minimum. For the rate, I indicate the first stage - analytics, architecture, and specification for 25,000 UAH, deadline 7 working days. Full development after design will most likely be in the range of 350,000-750,000 UAH and 10-16 weeks, depending on the import of payments, documents, roles, and reports.
For the stack, I would suggest React, TypeScript, Node.js, PostgreSQL, Prisma or TypeORM, Redis for queues and cache, S3-compatible storage for documents, backups, action logs, and RBAC rights management. Architecturally, it's better to make the system modular - finance, accounts, operations, documents, reports, admin panel, auditing, and data export. In the end, you will receive the source code, launch instructions, setup documentation, and a working system on the server.
Our team is small - an architect-analyst, full-stack developer, interface designer, tester, and DevOps for the launch. Personally, I take care of architecture, decomposition, critical security decisions, and acceptance of results to ensure financial data doesn't go in different directions. Overall, it's fine to do it in stages and not turn the project into an endless ship repair at sea =)
Estimation by stages
> Analytics and specification - 25,000 UAH - 5-7 days
> Prototype and interface design - 35,000-60,000 UAH - 7-12 days
> Backend - 120,000-220,000 UAH - 4-7 weeks
> Frontend - 100,000-190,000 UAH - 4-7 weeks
> Testing, launch, backups, and documentation - 35,000-70,000 UAH - 1-2 weeks
> Support - from 15,000 UAH per month
Two points need clarification
> Are integrations with banks, 1C, BAS, payment APIs, or import of statements from files planned?
> How many roles, employees, and legal entities should be in the first version?
Similar cases from Ingello
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The main page for such projects - https://systems-fl.ingello.com