ERP and CRM back offices
Data-heavy screens for orders, stock, purchasing and reports, with tables, filters and forms that people use all day.
React development
React front ends for business systems and SaaS products.
React is the front end we use most for business software. It runs the screens of two custom ERPs connected to QuickBooks, a task management SaaS with live boards, a cloud event platform with 8 .NET microservices, and back-office tools inside Umbraco sites.
React at OSKIFrom case studies
Client projectsPublished case studies that used React
7projects
Where in the stackFrontend
1layer
IndustriesBusiness operations, Project management, Events and conferences and more
7industries
Most recent projectInventory, orders and accounting in one ERP, synced with QuickBooks
2026year
What we build with React
Where React earns its place.
The kinds of work we use React for, based on the projects below rather than a list of everything the technology can do.
SaaS product front ends
Boards, task cards, dashboards and live updates with Redux or modern React state, built for real daily use.
React inside a CMS
Interactive parts of Umbraco sites and custom back-office tools, sharing one API with the rest of the product.
7 client projects
How React fit into each project.
Which part of the system it ran, and what it worked with. Every row links to the full case study.
Inventory, orders and accounting in one ERP, synced with QuickBooks
FrontendReact
Together with.NET 8, MySQL, QuickBooks API
One workspace for Scrum, Kanban and time tracking, built for daily use
FrontendReact, Redux
Together withNode.js, MongoDB, Redis, Elasticsearch
EM2: matching thousands of event attendees across 8 .NET microservices
FrontendReact 18
Together withTypeScript, Ant Design, ASP.NET Core, MediatR (CQRS), Entity Framework Core, Azure Functions
Replacing scattered tools with one ERP that stays in sync with QuickBooks
FrontendReact
Together with.NET 7, ASP.NET Core Web API, AutoMapper, Hangfire, MySQL, Entity Framework Core (Pomelo)
Back-office tools for a school platform teaching Danish, Norwegian and Swedish
FrontendReact
Together with.NET, Umbraco, SQL Server
Disctopia's website and streaming app, joined by one login and one API
FrontendReact
Together with.NET, Umbraco, Umbraco Cloud, JavaScript, Auth0, Mailchimp
A .NET business portal for a German division, its dealers and staff
FrontendReact, Redux
Together with.NET Framework 4.8, ASP.NET Core 3.1, .NET 5.0, HotChocolate (GraphQL), Entity Framework, Hangfire
React case studies
Results from these projects.
Each one with the client’s problem, our approach and what changed.
CRM & ERP2025–2026
Business operations
Inventory, orders and accounting in one ERP, synced with QuickBooks
A custom ERP that brings inventory, order processing, purchasing and reporting together and keeps vendor data in sync with QuickBooks.
20%faster order fulfillment
40%faster reporting
Web platforms2026
Project management
One workspace for Scrum, Kanban and time tracking, built for daily use
A task and project workspace with Scrum and Kanban boards, detailed task cards, time tracking and live updates for teams of any size.
85%project visibility
70%team adoption
Web platforms2025
Events and conferences
EM2: matching thousands of event attendees across 8 .NET microservices
A cloud-native platform for multi-day, multi-venue events: 8 .NET microservices on Azure handle registration, scheduling, attendee matching and Zoom.
8microservices
1000sattendees and sessions
CRM & ERP2025
Manufacturing and logistics
Replacing scattered tools with one ERP that stays in sync with QuickBooks
An internal ERP that replaced separate tools for inventory, purchasing, shipping and reporting, with a two-way QuickBooks sync the finance team can rely on.
QuickBookstwo-way invoice sync
4 unitsLB, KG, STON and MTON conversions
Web platforms2024
EdTech
Back-office tools for a school platform teaching Danish, Norwegian and Swedish
Custom Umbraco plugins for a platform that teaches Danish, Norwegian and Swedish in schools: reporting, a translation-aware editor and moderated comments.
3Nordic languages
Umbracoback-office plugins
Web platforms2024
Disctopia
Disctopia's website and streaming app, joined by one login and one API
Disctopia's marketing site and streaming app now share one Auth0 login, one API for news, comments and likes, and CMS-driven event banners.
2→1platforms unified
SSOone Auth0 login
HS High Stake GmbH
Web platformsSince 2021
HS High Stake GmbH · Germany
A .NET business portal for a German division, its dealers and staff
OSKI developers joined HS High Stake to build modules for a large business portal that links a German division, its dealers and its employees.
7developers over the project
18+ monthsof continuous work at review time
Related services
React is a tool. These are the jobs it does.
We do not sell hours of a technology. We take on a result, and choose the stack with you. These are the services where React usually comes in.
Custom software developmentERP, CRM, portals, SaaS products and back-office tools built for your processes.Web developmentHigh-traffic websites, portals and web apps on .NET, React, Vue, Angular and Next.js.ERP developmentCustom ERP for inventory, orders, purchasing, production and invoicing, with two-way QuickBooks sync.
Technologies
Other technologies we have shipped with.
Each one backed by at least one published client project.
Backend
React FAQ
React questions we hear.
Anything missing? Send us your question and an engineer will answer, usually within one business day.
Contact usWhich back ends do you pair with React?+
Most often .NET (ASP.NET Core) with SQL Server or MySQL, and Node.js for real-time products. The ERP, event platform and task manager in our case studies cover all three.
Do you use TypeScript with React?+
Yes, on new projects. The EM2 event platform front end is React 18 with TypeScript and Ant Design.
Can you take over a React app another team built?+
Yes. We review the code, state management and dependencies first, then fix what blocks the team before adding features.
Start a project
Tell us what you are building with React. We come back with a plan and a price.
A spec, a Figma file or three paragraphs is enough to start.
- First reply · from an engineer, not a sales rep
- 30-min call · with Roman, our CTO, to clarify scope
- After the call · a written proposal with plan, team and price
Roman Oleksuk, CTOPrefer to talk? Pick a slot in Roman's calendar