Артем

Artem Demchyshyn
TW8, London, UK | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
GitHub | LinkedIn

�㰟 Professional Summary
Junior Java Backend Developer with hands-on experience building REST APIs using Spring Boot, Spring
Data JPA, and JWT-based Security. Transitioning from an engineering leadership background with a
strong foundation in Core/Advanced Java, SQL, and object-oriented design. Passionate about clean
code, robust architecture, and solving real-world problems. Ready to contribute to modern backend
development projects and grow within a collaborative team.

� Technical Skills
• Languages: Java, SQL
• Backend Development: Spring Boot, Spring Data JPA, Spring Security, JWT, MapStruct, Lombok,
Swagger, Jackson
• Core Java: OOP, Collections, Streams API, Multithreading, Concurrency (ExecutorService, Locks),
IO/NIO, JDBC, Reflection, Annotations, Optional, Record
• Databases: MySQL, Oracle SQL, SQLite, MongoDB
• SQL: DDL, DML, Joins, Subqueries, Set Operators, Transactions, Indexes, Views, Sequences
• Security: JWT Authentication, BCrypt, Stateless API Security, Role-based Authorization
• Tools: IntelliJ IDEA, Git, GitHub, Maven, Postman, SQL Developer, Flyway
• Other: Jsoup, JavaFX (Basic), Regex, File I/O, Project Configuration (.yml/.properties)

�㲓 Education & Certifications
Oracle SQL Course – Self-Study
Jan 2024 – Jun 2024 - Mastered DDL/DML, joins, transactions, views, and sequences using Oracle SQL
tools.
Advanced Java Course (OCA-aligned) – Self-Study
Dec 2023 – Jan 2024 - Covered multithreading, Streams API, JDBC, functional programming, and
reflection.
Spring Boot & REST API Mastery – Ongoing
Apr 2024 – Present - RESTful APIs with Spring Boot, DTOs, Security with JWT, CRUD, Postman testing.
BSc in Hydraulic Engineering
Kherson State Agrarian and Economic University, Ukraine
Sep 2012 – May 2017 (Grade: 2.1)
�㷈 Projects
• Shopping Cart API (Spring Boot + JWT + JPA)
Secure API with user authentication, role-based access, product management, and cart operations.
- Features: Login/Register, JWT handling, Role checks, CRUD endpoints, validation. - Stack: Spring
Boot, JPA, MySQL, Spring Security, Postman, MapStruct, Swagger.

• Custom GeminiConnection
Java client for Google’s Gemini API supporting generation config, streaming responses, and image
requests. - Used in other projects as a reusable, configurable API layer.

• AnkiQuestionGeneration
Parser + AI-powered converter that transforms Notion HTML notes into Anki flashcards using Gemini
+ SQLite.

• CocktailScrapper
Multithreaded recipe scraper with Jsoup, MongoDB/MySQL support, and anti-bot rotation.

• BlackJack CLI Game
Java console game implementing object-oriented principles and control flow.

�㶼 Professional Experience
Bartender, Caprice Holdings – Scott’s Richmond, London, UK
Aug 2022 – Present - Delivered outstanding customer service and team collaboration in a fast-paced
setting. - Promoted within 7 months for leadership and reliability.
Lead Engineer | Nikoplast | Odessa, Ukraine (Sep 2016 - Feb 2022)
A leadership role focused on optimizing complex production systems, managing end-to-end project
lifecycles, and driving quality assurance.
• Process Optimization: Led the implementation of a new quality management framework
(planning, assurance, and control), reducing product write-offs by 10%.
• Performance Record: Set a new company production record by achieving 8.3 tons of output in a
single 12-hour shift.
• Team Leadership & Mentoring: Trained and mentored 8 new engineers, all of whom earned
promotions to team leadership roles within an average of 1.5 years.
• Career Progression: Recognized for consistent high performance with two key promotions:
promoted to Lead Engineer after two years and to Senior Lead Engineer two years later.

�㴧 Additional
• Languages: English (Professional), Ukrainian (Native), Russian (Native)
• Work Eligibility: Right to work in the UK