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Yuriy C.

Yuriy C.

GraphQL & MCP Integration Engineer | Real-Time Systems Architect

I solve architectural challenges differently. While standard engineering often relies on stacking repetitive templates, I focus on building holistic, high-signal systems where distributed data, AI, and real-time processes mesh seamlessly. People might not always track my exact process from the outside — but the end result works, precisely and predictably. Known as letoribo in advanced developer ecosystems, I use my core framework @letoribo/mcp-graphql-enhanced to turn abstract LLM reasoning into dynamic, instantaneous action. I build the infrastructure that allows AI agents to navigate and manipulate complex spatial and relational data under strict low-latency constraints. Core Focus: GraphQL & MCP Infrastructure: Scaling agentic workflows and providing language models with surgical, real-time access to distributed environments. Real-Time Systems Integration: Designing custom mutation interceptors and synchronized data-shuttles that bridge web-synapses with complex external simulations. Advanced Spatial Visualization: Building hardware-accelerated 3D interfaces to make intricate data structures tangible. If you are looking for a standard developer to close standard tickets, there are plenty of options. But if you need an architect to build something that breaks the mold — let’s connect.

🇺🇦Odesa, Ukraine$25/hr40% JSS4.77 (53)Since Feb 2015

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#121,895 / 412k
🇺🇦Country#6,242 / 14.3k
Revenue, last 30 days
$0
Total earnings
$26k

Billed in all: $26k

World#121,895 / 412k
🇺🇦Country#6,242 / 14.3k
Per project
$427
Projects, last 6 months
0
World#209,850 / 412k
🇺🇦Country#7,324 / 14.3k
Projects in all
60

Across 71 contracts

34% fixed66% hourly
World#50,714 / 412k
🇺🇦Country#2,371 / 14.3k

Earnings, last 30 days

$25.8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$25.0k$25.5k$26.0k$26.5kOct 8Oct 23Nov 7

Skills