Nikita

Nikita Smiichyk
Balbriggan, Co. Dublin
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)

Portfolio Website GitHub LinkedIn

PROFILE

Backend-focused developer building RESTful APIs and structured systems using Java and Spring Boot.
Currently developing a Stripe-like billing platform with a focus on clean architecture, scalability, and data
integrity.
Strong analytical thinker with a systematic approach to problem solving, actively building backend
systems beyond coursework and seeking a backend-focused placement.

TECHNICAL SKILLS

Languages: Primary: Java, SQL

Secondary: JavaScript, PHP, C++, Python

Familiar: Kotlin

Backend Development: Spring Boot, REST API design, JDBC, Node.js

Databases: MySQL, PostgreSQL, MongoDB

Tools & Technologies: Git, GitHub, Docker, Maven

Testing: JUnit

PROJECTS

STRIPE-LIKE BILLING PLATFORM

Designed and developed a backend billing system for managing customers and subscription-like
workflows using Java 21 and Spring Boot. Built RESTful APIs with request validation, duplicate data
protection, and structured CRUD operations. Integrated PostgreSQL with Flyway migrations to ensure
data consistency and controlled schema evolution.

Tech: Java 21, Spring Boot, Spring Web, Spring Data JPA, PostgreSQL, Flyway

SUPERMARKET STORE SYSTEM (CLIENT -SERVER)

Designed and implemented a multi-tier backend system using a custom JSON-based socket protocol for
managing departments and products. Built a multithreaded server handling concurrent client requests,
with DAO-based persistence using JDBC and MySQL.

Tech: Java, JDBC, MySQL, JSON, Multithreading
EMERALD-SIP E-COMMERCE

Designed and developed a full-stack application for managing eco-product listings and orders, including
user interaction and data management features.

Tech: JavaScript, Node.js

EDUCATION

Sep 2024 – Present BSc (Hons) Computing / Software Development
Dundalk Institute of Technology

2023 – 2024 Diploma in Software Development (QQI Level 5)
Drogheda Institute of Further Education

2019 – 2021 Geodesy (Incomplete Degree)
Kyiv National University of Construction and Architecture (KNUBA), Kyiv

WORK EXPERIENCE

Jul 2022 – Oct 2022 Cleaner (Cleanroom Environment)
Edwards Lifesciences, Limerick, Ireland

▪ Maintained strict cleanliness standards in controlled cleanroom
environments
▪ Followed detailed procedures and protocols to ensure
contamination-free conditions
▪ Demonstrated attention to detail and responsibility

Sep 2021 – Mar 2022 Crew Member
McDonald’s, Kyiv, Ukraine

▪ Worked in a fast-paced environment requiring efficiency, and
teamwork
▪ Managed multiple tasks under time pressure
▪ Maintained high service standards