Markov Konstantin

Senior Java Backend Engineer | Microservices, Distributed Systems, AI

Actively looking · Member since 24 Jul 2025

Message

Location: Serbia

Desired salary: from 20 USD/hourly

Work preference: Full Time, Contract

Experience level: Not set

About

Professional summary

Java backend engineer with 6+ years of experience in fintech and distributed systems.

I design and build microservice architectures, integration platforms, and high-load systems using Kafka, REST/SOAP, and message brokers. I’m comfortable taking ownership across the full delivery cycle - from architecture and development to CI/CD and production support.

Recently, I’ve been working on AI/LLM integrations and real-time systems. At Terranoha, I contributed to a microservices platform with AI agents, where I built an SSE transport layer for MCP servers using Netty, improved CI/CD pipelines, and worked on system architecture and observability.

Core stack:
Java, Spring Boot, Kafka, SQL

Experience with:
Microservices, distributed systems, REST/SOAP, Netty, Docker, Jenkins, OpenShift

Additional:
AI/LLM (Claude API, LangGraph4j, MCP), DevOps, logging, performance optimisation

Open to remote / contract opportunities.

Skills

14 capabilities

Experience

Career history

Specialist, SOA Solutions Development Department JSC Neoflex Consulting

May 2020 – September 2025

Development and maintenance of integration bus and microservices functionality. Enhancement of existing service functionality, bug fixing. Participation in effort estimation. Code review. Preparing and deploying bus and microservices releases. Enhancing deployment scripts. Writing and executing SQL scripts. Incident analysis in the production environment. Minor improvements to non-core frontend systems. Piloting of Istio and Backstage services. Onboarding new employees into the project.

Backend Java Developer & DevOps Engineer Terranoha SA

November 2025 – April 2026

Full-cycle contributor on a commodity derivatives trade assistant - a Java 24 microservices platform (83 modules, proprietary IoC) integrating AI agents, MCP tooling, and real-time delivery pipelines. Sole engineer for multiple workstreams simultaneously