Georgii Kalashnikov

Hands-on Remote Full-time:

• I transfer my experience in restoring performance and predictability to mature high-load OLTP/OLAP systems.

• I eliminate database deadlocks at the root, stabilize UX, and cut response times to sub‑half‑second WITHOUT turning the system into a distributed monolith.

• I radically drop support team load and negative user feedback typically caused by data corruption or latency.

• I accelerate developer velocity not by sacrificing their health, but by fixing deep‑seated architectural flaws, WITHOUT forcing a complete rewrite on a trendy tech stack.

• I shrink the code multi‑fold by capturing implicit coupling into clean, configurable modules, while curing the habit of “copy first, think later”.

• I shrink the code by developing and embedding modularity for any missing foundation into the existing framework, WITHOUT letting infrastructure glue‑code bloat on every feature.

• I practice pair programming and address individual skill gaps, eagerly absorbing and integrating any overlooked experience.

• I fix the product‑dev‑QA‑support pipeline where it regularly breaks.

• I deliver the most thorough code reviews with a rigorous breakdown of architectural impact and overlooked business invariants.

• I transform git history into a self‑documenting asset from a meaningless mess.

• I own sustainable engineering culture, predictable system evolution, and transparent tech debt management under intense deadline pressure.

ARCHITECTURAL FOUNDATION (How it works):

• State Ownership (Closure over State): deconstructing heavy stateful DDD aggregates into pure synchronous functions over state within a transaction. New features are implemented in their own modules, and new aggregates can extend previously existing ones as MIXINS via basic OOP semantics (constructor composition).

• Forced ONE Database Roundtrip Invariant: all mutations are guaranteed to pack into a single atomic SQL/JSONB package (see Dapper + PostgreSQL example). Fully decouples from ORM change‑trackers, eliminating database deadlocks and read‑before‑write transaction races at the design level.

• Clean Domain Layer: true isolation from infrastructure, persistence, and brokers. Every transaction is an isolated class‑case with a transparent lifecycle and explicit resource management WITHOUT hidden Unit of Work magic.

PROOFS & ENGAGEMENT:

• Open‑source reference chassis: github.com/gzorikus/sample

• Briefings & manifest: git.new/MZjecvU | git.new/50d9t53 | git.new/OMRBupK

• Engagement: Independent international B2B contractor via Garna.io. Located GMT+7 (overlap with APAC and Europe)