Open to opportunities

Maksym Bartkov

@maksymbartkov

Engineering Manager at CommIT who built CommIT DBO, a banking platform that brought the company $5.2M.

At CommIT, I built CommIT DBO from the ground up in 13 months, including production code, CI/CD, and hiring. The internet banking platform became the company's core product and brought in $5.2M.

I also originated CommIT Identity and CommIT DBO AI, then took each from business case through delivery and accreditation. Identity returned about $200K net profit on its first paid implementation, while DBO AI answers customers' questions about their transactions using their account data.

Before CommIT, I led a Java 8-to-17 migration across nearly 100 microservices at Jaja Finance. I'm also a co-author of Bucket4j, the Java rate-limiting library, and Spring REST: Building Java Microservices and Cloud Applications, 2nd Edition.

Experience

Work history, roles, and key accomplishments

Current

Engineering Manager

Current

CommIT

Jun 2023 - Present (3 years 5 months)

Runs backend engineering for a digital banking platform, leading 10+ engineers and owning architecture decisions, hiring, and delivery. Built the core product CommIT DBO, bringing in $5.2M, and led the organization's growth from 5 to 90+ people.

Java Kotlin Spring Framework Microservices System Design CI CD Kubernetes AWS PostgreSQL Redis Kafka Elasticsearch Claude Code DORA Metrics SPACE Framework ADKAR Model Engineering Leadership Hiring Performance Reviews

Technical Leader Senior Software Engineer

Jaja Finance

Apr 2022 - Jun 2023 (1 year 2 months)

Technical lead for a cross-functional platform team, mentoring engineers and leading a Java 8 to 17 migration across ~100 microservices. Maintained DORA-aligned reliability and reduced infrastructure costs by ~20% through JVM performance optimization.

Java Spring Framework Microservices Architecture Migration DORA Metrics JVM Performance Tuning ArchUnit ADKAR Model Mentorship

Team Lead

RooX Solutions

May 2018 - Apr 2022 (3 years 11 months)

Led a 5-person payments engineering team embedded at Otkritie Bank, owning ruble and FX payment workflows for enterprise clients. Scoped and delivered payment platform changes that reduced manual intervention and operational time, contributing to a 15-20% reduction in OPEX.

Java Payments Enterprise Software CapEx OpEx Stakeholder Management Team Leadership

Senior Software Engineer

Freldo

Dec 2014 - May 2018 (3 years 5 months)

Backend Java engineer on a social networking and local business discovery platform, building microservices and REST APIs for user profiles, feeds, and business listings. Implemented caching and integration with third-party services, improving performance and reliability.

Java REST APIs Microservices Caching PostgreSQL MySQL Redis Third Party Integrations