EVANGELOS N.

I’m a Software Engineer (MSc) with a career spanning over two decades, beginning in 2001. I built a strong foundation working in IT companies in Greece across diverse teams and environments, and have since delivered over 40,000 hours of remote work for clients across the US and EU. My experience combines deep technical expertise with ownership of delivery and long-term client collaboration, with a focus on high-quality solutions and building effective team culture through trust, transparency, and open communication. My core strength lies in designing and delivering full-stack web applications, covering the entire lifecycle from requirements definition and stakeholder alignment to architecture, implementation, testing, and deployment. I specialize in scalable backend systems and modern frontend interfaces, primarily using Java/Spring ecosystems, with complementary experience in Node.js and Python-based solutions. I design modular, service-oriented and microservices architectures, secure RESTful APIs, and event-driven integrations, applying DevOps practices and cloud-native principles to ensure reliability, scalability, and performance. I take ownership of technical direction and delivery, contributing to architectural decisions, defining solution approaches, and guiding implementation for distributed systems. I have coordinated development efforts, mentored engineers, and facilitated Agile delivery, ensuring alignment between technical execution and business priorities. My experience includes working in distributed, cross-functional environments, collaborating closely with stakeholders, product owners, and engineering teams to deliver high-quality solutions. In addition to my engineering background, I hold postgraduate qualifications in Systems Thinking and AI/ML, strengthening my ability to approach complex problems holistically and balance technical and business trade-offs. Beyond my technical work, I have also managed residential building operations, strengthening my skills in people management, budgeting, stakeholder coordination, and conflict resolution, while reinforcing practical decision-making in real-world environments. Based in Greece (GMT+2), I work effectively across US and EU time zones, enabling smooth collaboration in distributed environments. With strong technical expertise, consistent delivery, and clear communication, I contribute to building reliable systems and successful team outcomes. Skills overview ===== 1. Backend Engineering (Java / Spring Ecosystem): Java (17+), Spring Framework (5/6), Spring Boot (2/3), Spring AI, Spring ecosystem (Core, REST, Data JPA, Security, Cloud, Integration, Native, WebFlux, Test), JPA/Hibernate, Maven, Gradle, FlywayDB, legacy Java EE (EJB, JMS, Servlets/JSP/JSF), JUnit (4/5), Mockito, AssertJ, Testcontainers, JaCoCo, ArchUnit, SpotBugs, PMD, Checkstyle, IntelliJ IDEA, Eclipse, NetBeans 2. Backend Engineering (Node.js): Node.js (18+), Express 3. Frontend & UI Engineering: HTML5, CSS3, Bootstrap, Material UI, Sass (SCSS), Less, TypeScript, Angular (2+), AngularJS (legacy), React (16/17/18), JavaScript (ES6+), jQuery, Jest, Mocha, Chai, Sinon, Jasmine, Playwright, ESLint 4. AI & Machine Learning: Python (3.10+), RAG, LLM integration, prompt engineering, NumPy, Pandas, Scikit-learn, Matplotlib, Seaborn, Jupyter/Colab 5. API & Integration: RESTful API design, asynchronous messaging (JMS, RabbitMQ), event-driven integration, authentication & authorization (OAuth2, JWT), third-party API integrations (OpenAI, Google APIs, Slack, Stripe) 6. Architecture: Service-Oriented Architecture (SOA), modular N-tier architecture, microservices architecture, distributed systems design 7. Cloud Platforms: AWS (EC2, S3, RDS, Lambda, API Gateway, CloudWatch, IAM, VPC), Azure (Virtual Machines, Blob Storage, Azure SQL, Functions, API Management, Monitor, Active Directory) 8. DevOps, CI/CD & Observability: Git (GitHub, GitLab, Bitbucket), SVN, GitHub Actions, Jenkins, Ansible, Puppet, Docker/Swarm, Kubernetes, Helm, Datadog, Rancher, ELK Stack, Splunk 9. Application & Web Servers: WildFly (10+), Apache Tomcat (8/9/10), Oracle WebLogic (12c/14c), IBM WebSphere (8.5+), GlassFish (4/5), Nginx (1.18+), Apache HTTP Server (2.4+) 10. Architecture & Design: C4 Model, UML (sequence, class, component, deployment, activity diagrams), ERD, solution architecture documentation 11. Agile Delivery, Project & Team Collaboration: Agile (Scrum, Kanban), Jira, Confluence, backlog management, sprint planning & estimation, user stories & acceptance criteria, stakeholder collaboration, retrospectives, release planning, cross-team coordination, mentoring, team collaboration & facilitation 12. Operating Systems: Windows, Linux (Ubuntu, Debian, CentOS), macOS, Bash/shell scripting, cross-platform development & environment configuration