Productivity tools

Solving engineering challenges for productivity web apps that resolve challenges for distributed teams and require fine-tuned relational data integrity, RBAC or PBAC, timezone-stability, real-time collaboration, reports and forecasts

Designed for organisational complexity

Productivity features can be the core of a product or a layer on top of an existing one. Either way, a few patterns tend to signal strong fit: work has dependencies that need to be visualised over time, multiple people need different levels of visibility into the same tasks, time needs to be tracked against work items for billing or resource planning, or teams are coordinating across timezones and need a shared source of truth. When structure and accountability become product requirements, the data model underneath them matters.

This service covers Kanban and Gantt data models, RBAC/PBAC permission systems, timezone-accurate date arithmetic, real-time collaborative editing with conflict resolution, and reporting aggregations. Core focus is on relational data integrity across task hierarchies, optimistic UI patterns that stay consistent under concurrent edits, and event architectures that scale with organisational complexity.

Productivity feature complexity

Productivity tools are deceptively complex to build well. Each major feature carries its own set of engineering challenges that only become visible once real users stress-test the product.

FeatureTechnical ChallengeWhat I deliver
Kanban BoardDrag-and-drop reordering, real-time card sync, lane managementOptimistic UI, WebSocket sync, customisable workflows
Gantt ChartDate arithmetic, dependency graph, critical path calculationInteractive timeline, task linking, milestone tracking
Time TrackingTimer accuracy, timezone handling, reporting aggregationsBackground timers, exportable reports, team dashboards
Real-time CollaborationConflict resolution, presence indicators, activity feedsLive cursors, change history, graceful conflict handling

What clients say

100%
Job Success Rate
On Upwork
5.0
“Great to work with Dmytro - he's a true professional and is very talented. He is responsive, adaptive and really works with the client to make the project successful.”
— Verified Upwork Client
5.0
“Smart and approachable. Good at what he does. Will be working with again and again!”
— Verified Upwork Client
Top Rated Plus
Top 3% of talent

Relevant projects

Let's connect!

Say hi at  hi@levchenkod.com

🇺🇦 in 🇨🇦