Yilmaz Mustafa Profile Photo

YILMAZ MUSTAFA

Java & Spring Software Engineer

📍 Zele 9240, East Flanders, Belgium

Professional Snapshot

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Years of Development

Total experience across Java, Python, and C#.

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Trained Junior Developers

Java/Python curriculum delivered with high placement rate.

0

Concurrent Users

Supported in high-performance apps.

Contextual Skill Match đŸŽ¯

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Core Technical Expertise

Backend & Databases

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Backend & Databases (High Expertise)

  • Core Java: Java 17-21, emphasizing modern concurrency.
  • Spring Stack: Spring Boot 3.x, Spring Cloud, Spring Security.
  • Messaging: IBM MQ, ZeroMQ, RabbitMQ (Protocols: SWIFT MT/MX).
  • Databases: PostgreSQL, Oracle, MongoDB, MSSQL.
  • Persistence: JPA, Hibernate, ElasticSearch.

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Frontend & Design

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Frontend & Design (Applied Skills)

  • Expert: Vaadin (Java UI framework).
  • Strong: React, HTML, CSS, JavaScript/TypeScript.
  • Intermediate: GWT (Legacy Java Web Toolkit).
  • Familiar: React Native, NextJS (beginner).
  • UI/APIs: GraphQL, RESTful API design.

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DevOps & AI/ML

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DevOps & AI/ML (Infrastructure & Growth)

  • Expert: CI/CD, Jenkins, Docker.
  • Intermediate: Kubernetes, Terraform, Python (TensorFlow, OpenCV).
  • Familiar: Ansible, AWS/Azure, MLOps concepts.
  • Architecture: Microservices, Modulith, Event-Driven.
  • Quality: TDD, JUnit, SonarQube.

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Professional Journey

Software Engineer

(Freelance - Java & AI/ML, Spring AI integration)
  • Built production Java microservices with Spring Boot and integrated AI model serving using Spring AI for low-latency inference pipelines.
  • Designed end-to-end AI/ML workflows combining Java (Spring) services with Python model components (TensorFlow/PyTorch), exposing inference APIs and batch pipelines.

Skills: Java, Spring Boot, Spring AI, DJL (Deep Learning for Java), TensorFlow, Python, FastAPI, Microservices, Model Serving.

Java Software Engineer

theMatchBox, Antwerp

  • Developed custom ElasticSearch Java Plugins for advanced search algorithms and performed JVM tuning/Spring application performance enhancement, utilizing ZeroMQ.

Skills: Java, Spring Boot, Elasticsearch, ZeroMQ, Distributed Systems, Performance Optimization.

Java Software Engineer

SWIFT, Brussels

  • Implemented and maintained SWIFT MT/MX messaging protocols on the Alliance Messaging Hub (AMH) for secure financial communication.
  • Contributed to Microservices design and enterprise security upgrades for high-volume, mission-critical transaction processing systems (using Java EE/Oracle SQL).

Skills: Java EE, Messaging Protocols, Data Security, Oracle SQL, IBM MQ, API Development, Agile.

Software Engineer

& Instructor (INTEC)
  • Developed and maintained full-stack internal applications (Student Management, QR Attendance) using Spring Boot, Spring Cloud, and Vaadin.
  • Delivered dual-language curriculum (Java EE, Spring Boot, Python) to over 100 professional developers, achieving a 95% job placement rate.

Skills: Spring Boot, Microservices, Spring Cloud, Java EE, Angular, REST Services, Powershell, Mentoring.

Java Software Engineer

VDAB, Brussels

  • Migrated legacy employment system data formats and schemas to modern RESTful Spring Boot Applications.
  • Contributed to Java development of matching algorithms and API services for candidate processing against the specialized Elise database.

Skills: Spring Boot, REST APIs, Java EE, Data Migration, JDBC, Scrum.

Software Engineer

(Self-employed, VKODIT)
  • Developed C# .Net desktop applications and powershell automation tools with robust MSSQL database integration for small enterprises.
  • Managed development, project delivery, and client acquisition for E-Commerce solutions (WordPress/WooCommerce with custom PHP plugins).

Skills: C#, MSSQL, Java, PHP, E-Commerce, Software Project Management, Entrepreneurship.

Architectural Competencies

Monolith

Maintain and evolve cohesive enterprise apps with clear boundaries and layered design.

Layered Modularization

Microservices

Design resilient, independently deployable services with strong observability.

Service Discovery API Gateway Observability

Modulith

Build well-structured Spring applications with explicit module boundaries.

DDD Bounded Contexts Spring Modulith

Self-Contained Services (SCS)

Expertise in developing vertically integrated services with dedicated frontend/backend stacks.

Java EE Vaadin Independent Stack

Event-Driven Architecture

Intermediate knowledge in designing systems that react to events for decoupled and scalable applications.

Event Sourcing Message Brokers Reactive Systems

Asynchronous Messaging Patterns

Intermediate proficiency in implementing non-blocking communication for resilient and high-performance systems.

Pub/Sub Queues ZeroMQ

Top GitHub Open Source Projects

Highlighting contributions across core Java frameworks, financial integration, and applied AI/ML in high-performance contexts (GitHub: codesapienbe).

Spring Vision Framework đŸ‘ī¸

Technologies: Spring Boot 3.x, Java 21, OpenCV | GitHub Link

A production-ready computer vision framework delivered as a Spring Boot Starter, enabling zero-configuration object detection, face analysis, and intelligent applications with enterprise security and high-performance pluggable backends.

Instyper - Voice-to-Text Desktop App đŸŽ™ī¸

Technologies: Java, Vosk, Whisper, GUI | GitHub Link

A lightweight, privacy-first desktop application that turns your voice into text instantly. It works offline (Vosk) and supports modern online models (Whisper) and live translation.

Stegnocchi - EXIF Steganography App đŸ–ŧī¸

Technologies: Core Java, Image Processing, Security | GitHub Link

A security tool built in Core Java focused on hiding data within image metadata (EXIF Steganography), showcasing low-level data manipulation and security principles.

DeepVoice - Voice Analysis Library 🎤

Technologies: Python, AI/ML, Signal Processing | GitHub Link

A comprehensive Python library for voice analysis, processing, and speaker identification, reinforcing active interest and competency in the AI/ML domain.

Spring ZeroMQ Starter 🧩🐙

Technologies: Java, Spring Boot, JeroMQ (ZeroMQ) | GitHub Link

A Spring Boot starter that provides a zero-dependency messaging layer on ZeroMQ (JeroMQ) with end-to-end CURVE encryption, annotation-driven APIs, auto-configuration, vector messaging and GPU/CPU compute integrations.

Spring Finqube âš–ī¸đŸĻ

Technologies: Java, Spring Boot, ISO 20022 | GitHub Link

Production-ready Spring starter for ISO 20022 financial messaging with enterprise security, PKI/HSM hooks, monitoring, and transport adapters for SWIFT/AMH.

Professional Development & Training

Expert Certification

SWIFT Messaging Systems

Internal Training (MX/MT, ISO 20022, AMH)

SWIFT ISO 20022
Certification

Agile in Software Engineering

SWIFT â€ĸ Internal Training

Agile Team Practices
Certification

Spring Boot and Angular

VDAB â€ĸ Internal Training

Spring Angular
Certification

Enterprise Java Development

INTEC Brussel â€ĸ Training

Java Spring
Coursework

C and System Programming

Istanbul, Turkiye

C Systems
Coursework

System and Networking

Bursa, Turkiye

Networking Linux
Coursework

Graphical and Web Design

Istanbul, Turkiye

Web Design
Self-Study

Agile & Security Foundations

Independent

Agile Security

The Roadmap to Mastery đŸ—ēī¸

Commitment to achieving industry-leading certifications in Java, Spring, and Computer Vision, starting November 2025.

Oracle Certified Professional (OCP) - Java SE Developer (Link)

Mastery of Core Java language specifics (Concurrency, Streams, Generics, and File I/O) necessary for enterprise performance and reliability.

VMware Tanzu Spring Professional Certification (Link)

Validating expert-level knowledge of the Spring ecosystem, focusing on DI, AOP, Transactions, Spring Security, and Spring Boot Autoconfiguration.

Official OpenCV Certification (Computer Vision) (Link)

Formalizing applied AI experience by mastering image processing, object detection, and DNN module integration using the OpenCV library.

Education & Global Competencies

Academic History 🎓

Postgraduate AI & Machine Learning

Erasmushogeschool Brussel, Belgium

Completed

MSc in Computing and Information Systems

Queen Mary, University of London, UK (2013)

Incomplete Study

Bachelor Degree, Tourism and Hotel Management

Beykent University, Istanbul, Turkiye (2010)

Completed

Languages & Domain đŸ—Ŗī¸

Language Proficiency

Turkish (Native) 100%

English (Fluent) 85%

Dutch (Professional) 70%

Domain Expertise

đŸĻ Financial Messaging
âš™ī¸ Enterprise Software
👨‍đŸĢ Technical Training
🧠 AI/ML Concepts

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