Maksym

Maksym Uimanov, Junior Java Developer
Szczecin, Poland | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») |
[відкрити контакти](див. вище в блоці «контактна інформація») | https://github.com/w4t3rcs
About Me
Junior Java Developer with practical experience in creating scalable backend services and distributed systems using Java, Spring Boot, and
cloud technologies. I am passionate about writing clean code, automation, and embracing modern DevOps practices, including Docker,
Kubernetes, and AWS. I possess a solid foundation in software development, microservices and data-driven design.
Work History
Java & Math Tutor – Young Coder School (YCS)
Dec 2024 – Feb 2025
Taught foundational Java programming and mathematics to students aged 5–16 in an engaging and age-appropriate format
Designed and delivered interactive lessons to introduce core programming concepts and logical thinking
Helped students build their first coding projects, fostering early interest in STEM
Projects
Spring Boot Python Executor (Open-source project, production-ready)
Developed a modular Spring Boot library enabling secure and flexible execution of Python scripts within Java applications
Designed a pluggable architecture with a centralized PythonProcessor and multiple execution strategies (REST, gRPC), backed by Dockerized Python sandboxes
with RestrictedPython for enhanced security
Leveraged Spring AOP and custom annotations for dynamic script binding and conditional execution, with support for SpEL and Py4J for advanced integration
Published to Maven Central, with full documentation, test coverage, and Testcontainers-based integration testing for easy adoption by other developers
Tech Stack: Java, Spring Boot, Spring AOP, SpEL, Spring JSON, Spring Cache (optional), Py4J (optional), Spring gRPC, Python, Fast API, grpcio, RestrictedPython,
Testcontainers, Docker, Maven, Maven Central
SonnettoPizza (Pet-project)
Architected a resilient food ordering platform based on microservices, leveraging Spring Boot and Spring Cloud
Integrated MySQL, MongoDB, and Redis for efficient data management and caching across services to ensure fast data access in a distributed environment
Scaled the platform on AWS using Docker and Kubernetes for orchestration
Implemented secure payment processing with Stripe API and user authentication using Keycloak
Enabled comprehensive observability by integrating ELK Stack, Prometheus, Grafana, Zipkin, and ensured quality via JUnit, Testcontainers, WireMock, Rest
Assured, SonarQube, and CI/CD pipelines with Jenkins
Tech stack: Java, Spring Boot, Hibernate, Validation API, MySQL, Liquibase, MongoDB, Redis, ELK, Spring Cloud (Netflix Eureka, Cloud Server, Api Gateway,
Resilience4j, OpenFeign), Spring Mail API, Stripe API, Java Money API, Zipkin, Prometheus, Grafana, Kafka, Swagger, Keycloak, JUnit, Testcontainers, WireMock,
Rest Assured, Docker (Jib), Kubernetes, Jenkins, SonarQube, AWS (EKS, EC2, RDS, ElastiCache), Maven
Temporal API (Minecraft mod with 7.1M+ downloads)
Designed and implemented a modular framework based on dependency injection, accelerating mod development for the entire Temporal Team
Enabled up to 300% faster development speed and achieved a 10x reduction in boilerplate code across dependent projects
Established a clean, testable architecture that improved team velocity and simplified long-term maintenance
Tech Stack: Java, NeoForge, Forge, Guava, Gradle
Extra Compat (Minecraft mod with 8.5M+ downloads)
Refactored and modularized ~80% of the codebase by introducing a custom-built Temporal API, reducing boilerplate by over 50%
Implemented complex player-requested features and improved dev workflows, contributing to a 5x growth in downloads
Reduced feature delivery time by ~40% by introducing reusable utilities and improving internal architecture
Collaborated in a distributed modding team, boosting code quality and maintainability across long-term releases
Tech Stack: Java, Forge, Temporal API, Gradle
AI-based image generator (Pet-project)
Engineered an AI-powered image generation platform, delivering both backend and frontend components with Spring Boot and React
Created a custom module for Spring AI that incorporates TogetherAI, enabling plug-and-play support for multiple image generation providers (StabilityAI, ZhiPuAI)
Designed cloud-based image storage using Amazon S3, and styled the UI with TailwindCSS and DaisyUI for responsive design
Enabled seamless interaction between frontend and AI services via RESTful APIs and prompt-driven logic
Tech Stack: Java, Spring Boot, Spring AI, StabilityAI, ZhiPuAI, TogetherAI, AmazonS3, React, TailwindCSS, DaisyUI, Maven
Handmade Shop (Team project based on teamchallenge.io)
Refactored ~60% of the backend codebase, improving readability and reducing code boilerplate by over 40%
Implemented JWT-based authentication, enabling secure login for 100% of users across all environments
Resolved 20+ critical bugs and performance issues, helping the team deliver features 30% faster
Worked in an Agile team, actively participating in sprint planning, code reviews, and testing
Tech stack: Java, Spring Boot, Hibernate, Validation API, PostgreSQL, Flyway, MapStruct, Spring Mail API, Swagger, Spring Security, JWT, Docker, Maven
Tech Task for Codibly
Developed a full-stack weather forecast application using Spring Boot for the backend and React for the frontend
Integrated external Meteo API via Spring's RestClient to retrieve forecast data based on user-provided latitude and longitude
Designed an interactive UI with Leaflet for map-based coordinate selection, including a dark/light mode toggle
Improved user experience with animated loading spinners using the LDRS library
Wrote unit tests for backend logic, containerized the app with Docker (via Jib), and deployed the solution to Render
Tech Stack: Java, Spring Boot, Meteo API, JUnit, Mockito, Docker (Jib), React, Vite, TailwindCSS, Material Icons, Leaflet, LDRS, Render, Maven
Tech Task for Remitly
Built a RESTful application using Spring Boot and Hibernate with a PostgreSQL database
Implemented a Spring Batch job to automatically import and process data from a .csv file into the database
Utilized Flyway for database migration and Redis for caching frequently accessed data
Documented APIs with Swagger and validated input using Java Validation API
Ensured code reliability with Testcontainers, Rest Assured, and containerized the solution using Docker
Tech Stack: Java, Spring Boot, Spring Batch, Hibernate, Validation API, PostgreSQL, Flyway, Redis, Swagger, JUnit, Testcontainers, Rest Assured, Docker, Maven

Skills
Java 17, Spring Framework, Spring Boot, Spring Cloud (Netflix Eureka, Config Server, OpenFeign, Resilience4j), Spring Web, WebFlux, Spring gRPC, Thymeleaf,
Spring Cache, Spring AOP, Spring Batch, Spring Security, Spring Security LDAP, OAuth 2.0, JWT, Spring Data JPA, JakartaEE, JDBC, Hibernate, MySQL,
PostgreSQL, Flyway, Liquibase, MapStruct, MongoDB, Redis, Amazon S3, Elasticsearch, Logstash, Kibana, Kafka, RabbitMQ, Zipkin, Prometheus, Grafana,
Splunk, JUnit, Mockito, Testcontainers, Keycloak, OpenAPI, Swagger, Ollama, OpenAI API, Telegram API, Discord API, JavaScript, TypeScript, React, HTML, CSS,
TailwindCSS, Git, GitHub, Maven, Gradle, Linux, Docker, Kubernetes, AWS, Microsoft Azure, Jenkins, Github Actions, REST, gRPC, GraphQL, WebSocket,
Microservices Architecture, OOP, SOLID, GoF, YAGNI, KISS, DRY, TDD, IntelliJ IDEA

Soft Skills Languages Education & Certifications
Team collaboration, Communication, English (B2) 2021.09-2025.05 - Liceum Ogólnokształcące “DELTA”
Initiative, Responsibility, Self- Polish (B2) 2023.01-2023.05 - JavaRush Course
motivation, Fast learning, Career Essentials in GitHub Professional Certificate
Requirements understanding, Ukrainian (C2)
Docker Foundations Professional Certificate
Resilience under pressure Russian (C2)
Running Spring Boot in Production Certificate
Test-Driven Development in Spring Boot with JUnit and Mockito Certificate
Spring 6: Spring Security Certificate