Description

Backend developer with 6+ years of experience, mostly in Java and Spring Boot. I build microservices and integrations, and I’ve worked on a few different domains — government (Justid), insurance (CIS), telecom (VodafoneZiggo, Delta Fiber), and logistics (KLM Cargo). My day-to-day is usually backend code, REST APIs, Kafka, and PostgreSQL or Oracle. I also have experience working with cloud-native platforms — mainly Kubernetes, Docker, and CI/CD pipelines (Jenkins and GitLab) — and I’ve picked up DevOps tools like Terraform, Ansible, and ArgoCD on real projects. Currently building PeerPin, a location-based social platform live in production with 100+ users, where I handle the full stack end-to-end: backend, infrastructure, Terraform, Ansible, observability with Grafana/Prometheus/Loki, and security scanning in the pipeline. I like clean code, well-tested services, and pragmatic solutions.

Industry field of expertise

Languages

English
Native or bilingual
Dutch
Fluent
Arabic
Native or bilingual

Workplace preferences

Can work on-site

Amsterdam (up to 50km)

BackCore
Co-Founder & Software Engineer
CONSULTING AND AUDITS
February 2026 - Today (5 months)
Amsterdam, Netherlands
Building PeerPin — a location-based social platform with 100+ users in production, live on the app stores. Co-founded the company to develop and operate the product end-to-end, owning the full stack: backend, infrastructure, CI/CD, security, and observability.
• • Built the backend in Java 21 + Spring Boot 4.x using DDD/hexagonal architecture (11 bounded contexts), with PostGIS for geospatial queries and Redis for caching/pub-sub
• • Set up infrastructure with Terraform (servers, networking, load balancer, managed DB on Hetzner) and Ansible across dev/tst/dem/prd environments
• • Wrote Jenkins pipelines (multi-branch, automated SemVer tagging, Docker multi-stage builds) and set up blue-green deployments
• • Set up observability with Grafana dashboards (9 alert rules), Prometheus + cAdvisor for metrics, Loki + Promtail for logs, and Tempo for tracing (OTLP)
• • Added security scanning to the pipeline: SonarQube, OWASP Dependency Check (CVSS ≥ 7 fails the build), Trivy for containers, JaCoCo for coverage (80%+)
• • Configured Nginx as reverse proxy (rate limiting, security headers, WebSocket upgrade) with Cloudflare Tunnel for DDoS protection
Tech: Java 21, Spring Boot 4.x, Spring Security (JWT/OAuth2), PostgreSQL 16/PostGIS, Redis 7, Terraform, Ansible, Jenkins, Docker, Grafana, Prometheus, Loki, Tempo, SonarQube, OWASP, Trivy, Nginx, Cloudflare, k6
Java DevOps Docker Terraform Ansible
AMIS-Conclusion
Senior Consultant (Java / DevOps)
CONSULTING AND AUDITS
February 2025 - February 2026 (1 year)
Nieuwegein, Netherlands
Nieuwegein
• • Worked on breaking down monolithic applications into microservices with Java 21 and Spring Boot on Oracle Cloud (OCI), using DDD principles
• • Migrated Spring Batch 2.x to 5.x: moved from XML to Java config, refactored to Spring Boot 3, replaced SOAP with REST, and integrated Apache Airflow for orchestration
• • Connected legacy SOAP services to newer REST APIs, with data flows running through batch processing and event-driven pipelines
• • Automated database migrations with Flyway (Oracle DB), including data modelling and schema design for new microservices
• • Worked with Kubernetes on OCI and GitOps (ArgoCD) for deployments
• • Used Terraform and Ansible for infrastructure provisioning on OCI
• • Set up Jenkins CI/CD pipelines with tests, SonarQube quality gates, and multi-environment deployments
• • Configured monitoring and alerting with LogicMonitor and Elastic/Kibana
• • Helped junior team members with DevOps practices, clean code, and code reviews
Tech: Java 21, Spring Boot, Spring Batch, REST/SOAP integration, Apache Airflow, Oracle DB/PL/SQL, OCI, Kubernetes, ArgoCD, Terraform, Ansible, Jenkins, Flyway, SonarQube, Elastic/Kibana
DevOps Java Terraform Ansible Kubernetes
Justitiële Informatiedienst (Justid) — Ministry of Justice —
Java Software Engineer (Integration Specialist)
PUBLIC SECTOR
May 2022 - December 2024 (2 years and 7 months)
Almelo, Netherlands
• • Built Java/Spring Boot microservices using DDD bounded contexts, with Kafka for event-driven integration between judicial systems
• • Ran services on Kubernetes and used MinIO for secure document storage
• • Tuned PostgreSQL and Oracle for high-load services, wrote PL/SQL stored procedures, and worked on data modelling and schema design
• • Used OpenAPI contracts for APIs and wrote unit, integration, and performance tests
• • Worked with security, architecture, and privacy specialists on government standards and GDPR
• • Built integrations between judicial subsystems for cross-domain data exchange via Kafka and REST APIs, with strict data isolation requirements
• • Helped improve the CI/CD setup in GitLab to make releases smoother
Tech: Java, Spring Boot, Kafka (event-driven integration), PostgreSQL, Oracle DB/PL/SQL, Kubernetes, MinIO, OpenAPI, Flyway, GitLab CI
Java Apache Kafka Gitlab Spring boot