Aleksei Grishchenko
Senior Java Architect · Team Lead · Enterprise Systems

Java architect with 7+ years in enterprise software and 20+ years of overall engineering experience. I specialize in legacy modernization, monolith decomposition, event-driven architecture, and technical team leadership.

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CONTACTS
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Telegram
LinkedIn
GitHub
Personal site

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KEY ACHIEVEMENTS
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• 7+ years in Java development, technical leadership, and architecture
• Led engineering teams of more than 10 people
• Evolved a back-office platform serving 15,000+ stores
• Helped decompose a ~12,000-class legacy monolith
• Reduced an enterprise build pipeline from 1.5 hours to 30 minutes
• Modernized a core stack from Java 7 to Java 17 and Spring Boot

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SKILLS
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Java & Spring: Java 17, Spring Boot, Spring Cloud, Spring Framework, Maven, Gradle
Architecture: Microservices, Modular Monolith, Event-driven Architecture, SAGA, Orchestration, REST
Data & integrations: Kafka, PostgreSQL, Swagger, RMI
Engineering practices: CI/CD, Code Review, Observability, Grafana, Technical Leadership
Additional stack: Python, Go, Docker, Kubernetes, Linux, AWS

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EXPERIENCE
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X5 — Senior Java Developer / Team Lead / Architect
Jan 2018 — Apr 2023
  • Evolved a back-office platform serving 15,000+ stores
  • Helped decompose a ~12,000-class legacy monolith into a modular monolith and later microservices
  • Reduced build time from 1.5 hours to 30 minutes and modernized the stack from Java 7 to Java 17 / Spring Boot
  • Designed a Spring Cloud store-update delivery system
  • Moved integrations from RMI to REST and Kafka; developed SAGA and orchestration-based workflows
  • Led engineering teams of more than 10 people
  Java 17, Spring Boot, Spring Cloud, Kafka, SAGA, REST, Maven, Gradle, Swagger, Grafana, PostgreSQL

Wellink Company — Java Developer
2016 — 2018
  • Developed the backend of an SLA monitoring and reporting platform
  • Worked with PostgreSQL, Linux deployments, integrations, and network monitoring
  Java, PostgreSQL, Linux, REST, Monitoring

ImportFrut — System Administrator / Infrastructure Engineer
Nov 2008 — Sep 2016
  • Owned the company's server, network, and virtualization infrastructure
  Linux, Windows Server, Proxmox, VMware, Networking

BSKB Vostok — Software Engineer (C++ / DSP)
Sep 2004 — Nov 2008
  • Developed embedded C++ systems and contributed to digital signal processing R&D
  C++, DSP, MATLAB, Embedded Systems

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LANGUAGES
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Russian: Native
English: Professional working proficiency