Віталій

Location: Ukraine, Dnipro
Vitalii Yakovlev Phone: [open contact info](look above in the "contact info" section)
Java Software Engineer Telegram: https://t.me/VitaliiYakovlev
Full Stack Software Engineer Email: [open contact info](look above in the "contact info" section)
LinkedIn: [open contact info](look above in the "contact info" section)

–––––––––––––––––––––––––––––––– Summary ––––––––––––––––––––––––––––––––
Software Engineer with 7+ years of commercial experience in backend development using Java and
the Spring ecosystem. Experienced in building high-load distributed systems, mentoring engineers,
and delivering scalable microservice architectures.

–––––––––––––––––––––––––––––––– Technologies ––––––––––––––––––––––––––––––
Languages Java (8 - 25), SQL (PostgreSQL), JavaScript (ES5, ES6), TypeScript
Back-end frameworks Spring Framework (Core, Boot, WebFlux), Netty, Hibernate
Communication RPC
Messaging / streaming Kafka, Kafka Streams, Kafka connectors
Front-end (alternative stack) React.js, React Redux, Redux Saga
CI/CD, builders, DevOps Jenkins, Maven, Gradle, Docker, Kubernetes
Testing tools JUnit (4 - 6), Mockito, Spring Boot Test, WireMock, Testcontainers
Cloud AWS, GCP
AI tools IntelliJ IDEA AI Assistant
Domains Fin tech, logistics, cryptocurrencies, space technologies
Other multithreading, high load, microservices, temporal, REST, WebSocket

–––––––––––––––––––––––––––––––– Experience –––––––––––––––––––––––––––––––​
Patrianna Ltd / Back End Developer / February 2025 - now​
Project: Payment system that supports integration with multiple payment providers.
Responsibilities:
Development of the application including source code and architecture solutions.
Development of unit and integration tests.
Release activities, database migrations, monitoring, troubleshooting, log and metrics analysis.
Achievement: Implemented integrations from scratch with multiple payment providers processing
thousands of payment transactions per day.
__________
Zelh Tech / Back End Developer / April 2023 - January 2025
Project: Logistics project that allows to connect drivers, carriers with clients, simplify freight tracking.
Responsibilities: ​
Development of the application including source code and architecture solutions.
Development of unit, integration and contract tests.
Release activities, database migrations, monitoring, troubleshooting, log and metrics analysis.
Initial setup of new services, adjustment of CI/CD pipelines, and configuration of Docker and
Kubernetes.
Mentoring of trainee and junior developers.
Achievements:
Designed and implemented data pipelines for processing of telemetry information received from
thousands of devices in a short time period.
Proposed and implemented solutions for decreasing the number of errors related to incompatible
data formats in different services.
__________
Capgemini Engineering / Back End Developer / May 2022 - February 2023​
Project: DeFi (decentralized finance) and NFT solution.
Responsibilities:
Development of application source code, development of unit and integration tests.
Demo for clients.
Achievement: Developed an isolated solution with minimal dependencies on other services for a
short time period that simplifies user experience with DeFi and NFT.
__________
WizardsDev / Full Stack Developer / Tech Lead / May 2018 - April 2022
Projects:
System for management of cryptocurrency wallets for private customers and companies
Trading robot​
Responsibilities:
Development of the application including source code (back end and front end) and architecture
solutions, development of unit and integration tests.
Setup new services, release activities, adjust CI/CD pipelines, monitoring, troubleshooting, log and
metrics analysis.
Demo for clients, alignment of technical requirements with the product owner.
Mentoring of trainee and junior developers.
Achievements: Developed infrastructure from scratch for crypto payments used by companies.
__________
DevEducation (Part time) / Java Lecturer / Mentor / June 2020 - June 2021
Project: Non-profit education project
Responsibilities:
Lectures and practical lessons, preparing presentations and tests.
Mentoring and assessment of students, code review.
Achievement: All students that successfully completed this course are currently working as software
engineers, one of them is in the lead position.
__________​
Yuzhnoye State Design Office / Hardware Engineer / January 2011 - May 2018
Responsibilities:
Development of technical documentation for the attitude determination and control subsystem,
command and data handling subsystem,
Calculation of subsystems power consumption, spacecraft dynamics.
Testing of spacecraft onboard equipment and telemetry analysis
Development of technical requirements and their agreement with subcontractors and suppliers.

–––––––––––––––––––––––––––––––– Education ––––––––––––––––––––––––––––––––​
Oles Honchar Dnipro National University / September 2006 - February 2012
Automation and Control in Technical Systems (Bachelor and Specialist diplomas)

––––––––––––––––––––––––––––––– Languages –––––––––––––––––––––––––––––––​
English: Upper Intermediate​ ​

Ukrainian: Native