Senior IT Architect

Quick Facts

• Role: Senior IT Architect

• Experience: 15–17+ years in IT (Senior level)

• Work model: Full-time; remote with occasional travel (up to 5 days/quarter to Brussels)

• Start: ASAP

• Languages: English or French (B2+)

• Project length: 3 months with high likelihood of extension

Description

You will design and evolve complex, distributed enterprise systems and microservice architectures end to end—from client interfaces (Web Components/Micro-frontends) to domain-driven patterns (DDD/BDD, CQRS, Hexagonal Architecture) and asynchronous communication via Kafka—then through cloud containerization and orchestration on AWS/Azure/OVH using Docker and Kubernetes. You will also define integration standards across backend and frontend and implement observability and security using SRE best practices.

Responsibilities

• Create scalable, modular, secure system architectures using DDD, BDD, CQRS, and Hexagonal/Ports & Adapters Architecture

• Set API and integration standards (RESTful/web services) and event-driven communication conventions (Kafka, JMS)

• Oversee microservices design and define frontend interface architecture using Angular/React

• Design runtime environments for containerized deployments using Docker and Kubernetes on AWS/Azure/OVH

• Implement monitoring/observability capabilities (tracing, logging) and security best practices in line with SRE principles

Requirements

• Master’s degree with 15+ years of IT experience, or Bachelor’s/Engineer’s degree with 17+ years of IT experience

• Proven knowledge of DDD, BDD, CQRS, Hexagonal Architecture, Event-Driven Architecture, and Microservices

• Strong backend and integration experience with Java and enterprise stack (Spring Boot, WebLogic, JEE/EJB, Hibernate), REST APIs, and Apache Kafka/JMS

• Strong frontend architecture familiarity with JavaScript/HTML-CSS, Angular/React, Web Components, and state management

• Hands-on cloud & DevOps experience with Docker, Kubernetes, and AWS/Azure/OVH; solid understanding of networking and security

• English or French at B2+ level

Benefits

• 3-month project with high probability of extension

• Remote work with occasional travel (up to 5 days per quarter)

• Competitive B2B rate: 200 PLN/h net + VAT