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Fiverr Pro
Nederlands
$
USD
Bohdan Tsekhm.
@bohdan_tsekhm
Backend Developer AI Engineering
Tsjechië
Russisch, Oekraïens, Engels
Over mij
I build high-load, real-time backend systems that don't crawl under pressure — and recently, I've been doing it with AI agents in the mix.
Hit me with a problem, and I'll make it fast, observable, and clean.
I'm a backend engineer with ~5 years of experience across outsourcing and product work. Always open to interesting architecture problems or a good conversation about building systems that scale.
Skills
Bohdan Tsekhm.
offline •
Bekijk mijn diensten
Full stack webapplicaties
I will develop a scalable nestjs backend API with nodejs and typescript
Werkervaring
Middle Back-end Developer
ScrumLaunch Brazil • Fulltime
Dec 2025 - Aug 2026 • 8 mos
• Built backend services for BrightSign digital signage devices — device communication + content delivery for a high-load fleet. • Designed custom AI agents using the Mastra framework; configured a private SearXNG instance on a VPS as a secure loopback search API to power them. • Architected and maintained PostgreSQL databases for structured, robust data storage. • Set up full observability (NewRelic, BetterStack, OpenTelemetry) and modernized monitoring. • Built internal Retool dashboards for device management, streamlining support operations.
BackEnd Developer
HZF • Fulltime
Jan 2025 - Nov 2025 • 10 mos
• Refactored a legacy B2B system, improving code clarity and performance stability for a large, complex codebase. • Wrote comprehensive unit + integration tests, reducing production incidents by catching bugs early. • Replaced polling with a real-time Socket.IO service, giving end-users live updates. • Restructured project architecture to improve readability and cut onboarding time for new devs.
BackEnd Developer
Entrance LLC • Fulltime
Aug 2021 - Jan 2025 • 3 yrs 5 mos
• Cut API response time by up to 70% in a high-load messenger using Node.js threads and workers. • Reduced database latency by up to 40% via MongoDB indexing and Redis caching. • Built a real-time messenger (NestJS + Fastify) with Socket.IO, multi-thread processing, and a Dockerized Nginx load balancer. • Integrated a Stripe payment system — purchases, subscriptions, and analytics. • Set up cloud infrastructure (AWS Lambda, CloudWatch, S3, SNS/SES) + third-party services (ZohoCRM, Twilio, SMS compliance lists).
