Dzmitry Masakouski

Adaptive learning and assessment platform for math, chemistry, statistics and accounting. Large, mature codebase with substantial legacy surface.

• Built a JSON → SQL ingestion pipeline: one ISBN creates a whole book record from arbitrarily nested content files.
• Solved the table-of-contents alignment algorithm — shift offsets and parent IDs across a hierarchy — and built a verification TOC to prove the outgoing payload was correct.
• Migrated a Salesforce query layer off a proprietary in-house scripting language onto JavaScript, plus the dialog interface around it.

A platform for religious organizations — a member-facing app plus a super-admin console. Built close to from scratch on Vite, React, TypeScript and Mantine with one other senior engineer.

• Proposed the theming architecture the team adopted: palette in theme.ts, consumed through generated Mantine variables instead of a chain of CSS files.
• Built organizations, roles, message and form templates — including a constructor so templates change without engineering.
• Owned mobile alignment across the product: audited every screen against the specs and drove the fixes.

Three consecutive telecom engagements: a self-service customer platform, a CSR analytics dashboard, and the shared component libraries behind the product portfolio.

• Cut roughly two seconds off application load by eliminating unused JavaScript from the bundle.
• Built core library functionality consumed by multiple downstream product teams.
• Found and fixed a critical backend bug across service boundaries in a microservice architecture.