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Egor Belkov

@egorbelkov

Senior backend/platform engineer with 10+ years designing, modernizing, and operating event-driven, multi-tenant systems, AI platform engineering.

Thailand

Message

Senior backend engineer, 10+ years. Java/Spring Boot and Go, with Python and TypeScript on top. I build and modernize multi-tenant, event-driven platforms: microservices on AWS EKS and Kubernetes, PostgreSQL, Kafka, RabbitMQ, Redis, Elasticsearch, GitLab CI/CD.

Recent work:

Multi-tenant public-health EHR (Java/Spring, B2B contract, Oct 2024–present) — FHIR R4 / US Core, SMART on FHIR, C-CDA R2.1, HL7 v2, e-prescribing, lab integrations, billing and inventory modules. Fixed a BOLA vulnerability and a cross-tenant notification leak.

12-service Spring Boot marketplace on AWS EKS — led Java 11→17, Spring Boot 2→3, and x86→ARM migrations with the platform live; integrated Stripe, Cardknox, Twilio, Google Geo, Seats.io, ChatGPT API, and third-party POS.

BPMN automation platform built from scratch (Java EE, Tomcat, PostgreSQL), later led its monolith→microservices migration.

Side of the house that's mine: NRFLO (nrflo.com), an open-source multi-agent orchestration platform I created and maintain solo. Orchestrates Claude Code and OpenAI Codex with parallel layered execution, verifier callbacks, Git worktree isolation, and an MCP server.

Experience

Work history, roles, and key accomplishments

Current

Creator and maintainer

Current

Nrflo

Jan 2025 - Present (1 year 7 months)

AI & agents: Multi-agent orchestration, MCP, Claude Code, OpenAI Codex, Anthropic Claude API, OpenAI API, prompt/context engineering, verifier workflows, human-in-the-loop operations

AI Agents Go React WebSockets GitHub Actions Claude Agent SDK OpenAI API MCP

Current

Senior AI Platform Engineer

Current

Ideas Implemented FZ-LLC

Oct 2024 - Present (1 year 10 months)

Senior Software Engineer (B2B Contract) for a multi-tenant public-health EHR platform built with Java/Spring microservices. Owned backend architecture, API design, and production fixes, and remediated security vulnerabilities.

Java Spring Boot Microservices REST APIs PostgreSQL Elasticsearch Security Healthcare

Software Engineer

BYM

Dec 2020 - Oct 2024 (3 years 10 months)

Designed and developed an event-driven, multi-tenant marketplace across 12 Spring Boot microservices on AWS EKS, with ELK and GitLab CI/CD.
Led all 12 services through Java 11→17, Spring Boot 2→3, and x86→ARM migrations
Integrated the ChatGPT API, Stripe, Cardknox, Twilio, Seats.io, and third-party POS systems into core product workflows.

Java Spring Boot Docker AWS Kubernetes Elasticsearch PostgreSQL Kafka

Software Engineer / Team Lead

Isands

Mar 2016 - Dec 2020 (4 years 9 months)

Built a BPMN automation platform from scratch with Java, Java EE, Tomcat, and PostgreSQL; later led its monolith-to-microservices migration.
Migrated CI/CD from Jenkins to GitLab, mentored junior engineers, and owned team code-quality standards.

Java Microservices PostgreSQL Gitlab CI Elasticsearch