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MVP and client portal development end to end
SaaS · high-load systems · MVP estimate in 1–2 days
Do you need a website for leads without a client portal and roles? turnkey website development
Cases
Cases: web products
Accounts, services and MVP with logic are not landing pages.
What is a web application
This is not a landing page or a “brochure site”. A web application is a product in a browser with users, roles, data and scenarios: log in, create an order, approve a document, pay for a subscription. Works on any device; logic and integration - on the server.
What kind of web applications are there?
MVP and SaaS
First version of the product for paying users: roles, data, billing or subscription.
Startups and web services
Hypothesis → working service in the browser. Quick start, then follow the steps by metrics.
LC / offices
Client, partner or employee account: statuses, documents, applications, access rights.
CRM and ERP
Orders, warehouse, finance, departmental processes - instead of Excel and a zoo of services.
Marketplaces and B2B
Catalog, transactions, parties' accounts, commissions, integration with payment and logistics.
Portals and state contours
Service portals, client portals of citizens/organizations, data exchange and reporting.
Iterations: prototype → MVP → stages
- 01
Prototype
Key screens and scenarios. We will agree before the development sprint.
- 02
MVP
Working v1: roles, data, acceptance criteria. You can start users.
- 03
Stage 2 / Stage 3…
Modules from the backlog, integrations, workload - without changing the team.
- 04
Product management
Releases, monitoring, roadmap and support are fully supported.
How to submit a job
Payment by iteration
Not the entire budget at once. Each stage is a separate estimate and payment upon acceptance.
Deploy each task
We did it - rolled it out to staging or continued. Nothing accumulates “until the end of the project.”
Scope and criteria
Before the code, we fix v1 vs backlog, roles, scripts and what is considered “ready”.
Integrations for the life of the product
CRM, payments, 1C, API - we connect something without which the stage does not work.
Custom web application vs no-code / Bubble
The constructor speeds up hypothesis testing. Custom is needed when roles, API, code ownership and growth without a platform ceiling are important.
| No-code / Bubble / Glide | Custom (JimmyNeuron) | |
|---|---|---|
| Deadline until clickable MVP | Days-weeks on the template, if the scenario is typical | Prototype → MVP by iterations; guideline from 300,000 ₽ for v1 |
| Roles, rights, data | Models out of the box; complex ACLs and reports - through crutches | Roles, statuses, auditing and database schema for your process |
| Integrations | Ready-made connectors and tariff limits | CRM, 1C, payments, your own APIs - no design ceiling |
| Possession and transfer | The product lives on the platform; migration is expensive | You have the code and infrastructure; you can change the team |
| When to choose | Internal prototype, simple LC, hypothesis for 1-2 months | SaaS, B2B office, marketplace, growth 1-3 years and load |
No-code is ok for a quick test without critical integrations. We switch to custom when you are limited by rights, API, speed, or want to own the code. The most common route is: prototype on the designer → custom MVP with data transfer.
Cost estimate
We divide into iterations: prototype → MVP → stage 2 → stage 3... Estimate in 1–2 days: goals, roles, v1 vs backlog. Payment - as development progresses.
Guideline from 300,000 ₽ for the first working version. Exact estimate - after the brief.
Where do they usually start?
MVP / SaaS
Minimum for paying users: roles, data, key script.
LC or CRM/ERP module
One circuit: office, statuses, documents - we are expanding further.
Web service / PWA
Service in the browser, including from a phone without a store.
What affects the price of a stage
iteration scope (prototype/MVP/next stage)
roles and screens in this release
integrations (CRM, 1C, payments)
term: ASAP or calm roadmap
Need traffic to a web application or website? Marketing department - separate calculation of channels and budget. Marketing application → m.jimmyneuron.ru
Technologies
Basic stack for MVP, accounts and services.
- Next.js - Interface, LC and SSR - speed and SEO.
- Node.js - APIs, integrations, background tasks.
- PostgreSQL - Data, roles, reports, transactions.
FAQ
Technology infrastructure
Product types, iterations and payment
The site mainly sells and informs. The web application allows users to work: accounts, orders, documents, payments, roles. Website for leads - at turnkey website development.
MVP and SaaS, startups and web services, LC, CRM/ERP, marketplaces and B2B portals, service portals. Complex ERP/CRM also on business platforms.
By iteration: prototype → MVP → next stages. Each stage - estimate, acceptance and deployment. We don’t save everything “until the end of the project.”
Guideline from $3,409 for the first working version. The exact estimate after the brief in 1-2 days depends on the scope of the stage, roles and integrations.
Next.js, Node.js, PostgreSQL. The rest is according to the task, without an extra stack “for growth”.
MVP development / order MVP: key scenarios, roles, data. Turnkey SaaS and high-load systems - when you need a scalable architecture, billing and multi-tenancy. Estimation of the cost of MVP development - 1-2 days after the brief.
Development of a client portal and web application is about roles, processes and integrations (including 1C), not a showcase. The website collects leads; office is a working tool for employees and clients.
Other services
- 02→
Turnkey website development
Turnkey websites and online stores: design, SEO, forms, analytics
- 03→
Online stores and booking
Store or online booking for salons and services: catalog, payments, CRM
- 04→
ERP/CRM business platforms
Custom ERP/CRM instead of Excel: portal, 1C, and APIs for your processes
- 05→
iOS and Android apps
MVP in the stores: native or cross-platform, backend and analytics
- 06→
Telegram bots
Bots for leads, CRM, support, and Mini Apps — turnkey launch
- 07→
AI agents and AI integration for business
AI agents and AI integration: digital employees, RAG, bots, and automation
- 08→
SLA support
We support the project after handover: incidents, bugfixes, and enhancements by plan
