Client portal and internal system development
I build systems that staff and customers use every day: operator and expert workspaces, portals with access control, reports and data imports. I design data models and permissions before development starts so the system can grow.
Why clients come
- The process lives in spreadsheets and chats, and the data drifts apart
- Staff need different permissions, but right now everyone sees everything
- Reports take hours to put together by hand
- The system has to exchange data with a CRM, POS or HR system
What I build
Roles and permissions
Employee, manager, admin, external partner — each sees their own data and actions.
Workspaces
Order feeds and task queues with filters, statuses and real-time updates.
Imports and exports
Excel uploads with a preview before saving, background reports with an emailed link.
Configurable forms
Fields, tables and forms that admins change in settings without a developer.
Audit log and publishing
Who changed what, publishing and revoking documents, protection from accidental edits.
Integrations
REST APIs for partners, data exchange with CRM, POS and external services.
Relevant experience
- VK EducationFullstack EngineerReview 360: data models and permissions for admins, managers, HRBPs and employees, participant import, reports with publishing and revoking.Open case study
- CoffeemaniaFrontend EngineerDelivery Hub: a real-time feed of orders from every channel, order cards, hand-off to iiko and couriers, Excel reports.Open case study
- MediArchiveProduct Tech LeadMediArchive: forms and tables driven by JSON configs, role-based permissions, public links with revocable access.Open case study
What drives the cost
I send a stage-by-stage estimate after a call and a review of requirements.
- Number of roles and complexity of access rules
- Data volume and reporting requirements
- Integrations: whether external systems have documentation and APIs
- Hosting: cloud or company servers
FAQ
Can you integrate with our CRM or accounting system?
Yes, if the system has an API or exports. I review the documentation before estimating — the scope depends on it a lot.
Can the system run on our servers?
Yes, that's taken into account at the architecture stage. MediArchive, for example, shipped as SaaS, as a boxed product and as an on-premise install.
Do you work alone or with a team?
I own the architecture, frontend and backend myself. If the project needs a designer, QA or DevOps, we agree on the team at the start.
What do you need to estimate a project?
Tell me what problem the product solves, who will use it and which systems it connects to. If there are no requirements yet, we'll work them out on a call, then I'll send a stage-by-stage estimate.
Why is the price shown as “from”?
It's the lower bound of the budget. The final figure depends on roles, integrations and load requirements — I give an estimate after reviewing the task.
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