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Philip Dobrynin

@philipdobrynin

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Senior Java/Kotlin backend engineer building scalable fintech and banking systems.

Italy

Message

What I'm looking for

I'm seeking backend engineering roles in fintech/banking where I can design scalable systems, lead migrations, mentor engineers, and deliver reliable, business-focused products.

I'm a Java/Kotlin software engineer with over six years of experience building scalable backend systems for banking and fintech. I specialize in Java 8–17, Kotlin, Spring Boot, microservices and databases, combining technical precision with a pragmatic delivery mindset.

I've designed architectures from scratch, migrated monoliths to microservices, upgraded legacy stacks (Java 8→17, JavaEE→Spring), and delivered payment and card-generation features that improved reliability and client outcomes. I also mentor junior engineers and emphasize test coverage and maintainability.

Previously trained as an electrical engineer, I bring strong analytical thinking, client communication skills, and a business-oriented approach to product development. I enjoy working in cross-functional teams to produce reliable, user-focused solutions.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

LTD Sigma / Intelligent Systems

Jul 2023 - Nov 2025 (2 years 4 months)

Developed and maintained a customer platform for meter readings, payments and service requests; integrated new partner banks to expand payment processing and built pre-litigation claim functionality that reduced legal cases.

Kotlin Spring Boot Microservices REST APIs PostgreSQL Docker Hibernate CI CD

Java Software Engineer

Freelance

Dec 2022 - Jun 2023 (6 months)

Performed backend development and codebase modernization across projects; upgraded Java 8→17, migrated JavaEE to Spring and replaced direct SQL with Hibernate to improve maintainability.

Java 8 Spring Framework Java EE Hibernate SQL Refactoring Migration MySQL PostgreSQL

Java Software Engineer

BPC Banking Technologies

Mar 2022 - Oct 2022 (7 months)

Developed and supported a Card Generation platform; refactored legacy code to improve reliability, implemented auditing and began partial migration from monolith to microservices.

Java Spring Boot Microservices Hibernate Auditing REST APIs PostgreSQL Refactoring Testing

Java Software Engineer

Rosbank

Sep 2019 - Nov 2021 (2 years 2 months)

Built backend for a Car Loan web platform, designed scalable architecture and achieved high JUnit test coverage; integrated OAuth2.0 via State Services Portal, boosting client acquisition by 16%.

Java Spring Framework OAUTH2 Junit Hibernate Microservices REST APIs PostgreSQL CI CD

Junior Java Engineer

Efit

Oct 2018 - Aug 2019 (10 months)

Developed and supported an order management platform for a large restaurant chain; implemented Hibernate and upgraded Java 7→8 using Stream API to reduce code volume and improve performance.