Open to opportunities

Igor Polchshikov

@igorpolchshikov

Message

I build enterprise Java backend systems, AWS microservices, and data pipelines for business-critical platforms.

Kazakhstan

Message

What I'm looking for

I'm looking to continue delivering business-critical backend and cloud-native systems, solving complex distributed-systems problems, and contributing to high-responsibility teams through technical leadership and mentoring.

I'm currently building and supporting high-availability enterprise backend systems for Caterpillar through COMTEK International. I extend Spring Boot services, develop AWS Lambda functions, and build event-driven pipelines that process Amazon Kinesis data into PostgreSQL Aurora.

Previously at ITS Partner / Arlo, I developed Java and Groovy microservices, created AWS Lambda-based logging infrastructure integrated with Splunk, and improved backend performance and reliability. I also investigated production incidents directly with end users and customers.

At EPAM Systems, I delivered cloud-based Spring Boot services and enterprise regulatory and transport platforms for clients including Wolters Kluwer. My work covered Java EE, JPA persistence, JDBC and stored procedures, database migrations, CI/CD support, and modernization from legacy Java and build systems.

Across financial, transport, IoT, and media domains, I've worked independently in complex, low-documentation environments while collaborating with distributed international teams. I also plan work, transfer knowledge, coordinate teammates, and mentor developers joining projects.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer — Enterprise Backend Systems

Current

COMTEK International

Apr 2024 - Present (2 years 5 months)

Senior Software Engineer working via COMTEK International on enterprise backend systems for a Fortune-100 client (Caterpillar Inc.). Responsible for production support and delivery of new features in a high-availability, data-intensive environment.

Supported and extended production Spring Boot services (ELB / ELC)

Developed and maintained backend services and a large set of AWS Lambda functions

Java Development Java Java Software Development Software Infrastructure AWS AWS Lambda Spring Boot Maven JDBC SQL Amazon Kinesis Git

Senior Software Engineer

ITS Partner

Jan 2022 - Apr 2024 (2 years 3 months)

Senior backend engineer working as a full-time employee at ITS Partner / Arlo, delivering distributed systems and cloud-based solutions for external clients.

Created Logging infrastructure based on AWS lambda for microservices and integrated it with Splunk

Developed and maintained microservices using Java and Groovy

Designed, deployed, and supported AWS infrastructure for backend services

Impl

Java Software Development AWS Spring Boot Amazon Kinesis Mockito Spock Framework Junit REST APIs Software Development Software Design

Senior Java Developer / Team Lead

EPAM Systems

Nov 2020 - Jan 2022 (1 year 2 months)

Senior backend development using Spring Boot and Java

Work on cloud-based and microservice-oriented systems

Implementation of business functionality and service integrations

Collaboration with distributed international teams

Partial Team Lead responsibilities:

Task planning and prioritization

Knowledge transfer

Coordination within the team

Stakeholder communication

Technologies:
Java, Spr

Spring Boot REST APIs Confluence Jira AWS Microservices Git Java Software Development Java Development Java

Java Software Engineer

EPAM Systems

Dec 2017 - Nov 2020 (2 years 11 months)

Client: Wolters Kluwer Financial Services — Regulatory Engine

Backend development for an installable enterprise regulatory platform

Design and implementation of JPA persistence layers

Work with plain JDBC and stored procedures

Support for multiple databases (Oracle, MS SQL Server)

Schema and data migrations using Liquibase

Deployment support for WebLogic and WildFly

CI/CD support using Team

Junior Software Engineer

EPAM Systems

Jan 2016 - Dec 2017 (1 year 11 months)

Client: Wolters Kluwer Transport Services (WKTS → Alpega Group)

Full-stack development for transport and logistics platforms

Backend development using Java EE, EJB, JMS, JPA, REST

Frontend development using GWT (Event Bus architecture)

Migration of build system (Ant / Ivy → Maven)

Migration from Java 7 → Java 8

Implementation of JWT-based stateless authentication

Participation in cloud-read