Software Architect (PID0479)

This is a remote position.

We are seeking a highly skilled Senior IaaS Software Architect to lead the design and evolution of our Infrastructure-as-a-Service (IaaS) platform. This role is pivotal in defining a clear architectural vision, focusing on scalable platform services, robust APIs, and orchestrated service layers that support modern, software-defined infrastructure.

• Role Type: Freelance/B2B Contract
  

• Duration: 6 Months
  

• Commitment: Full-time
  

• Compensation: Daily Rate available
  

• Language Requirement: Fluent English is the only required language.
  

• Location: Remote with only occasional onsite visits to Germany.
  

Responsibilities

As the lead architect for core IaaS components, your work will span strategic design, stakeholder coordination, and technical governance:

• Architecture Design & Ownership: Define software architecture for infrastructure orchestration layers and distributed microservices. Translate domain models into
  

• Pydantic-based schemas and establish service discovery patterns.
  

• API & Messaging Strategy: Lead the definition of FastAPI-based REST interfaces and integrate asynchronous processing via Celery, RabbitMQ, and event-driven communication through Kafka.
  

• Strategic Initiatives: Drive the roadmap for microservices architecture, utilising graph-based dependency resolution and ArangoDB for complex resource management.
  

• Technical Consistency: Establish architectural guardrails for observability, operational resilience, and security (OAuth2, IAM). Conduct cross-functional reviews and act as the primary architectural contact for engineering teams.
  

• Stakeholder Alignment: Coordinate with Product Management and platform sponsors to ensure technical decisions align with broader business strategies and modular scalability.
  

Requirements

To be successful in this role, you must be a senior-level expert in infrastructure platform engineering.

Technical Must-Haves:

• Highly experienced in software architecture or infrastructure platform engineering.
  

• Expertise in Python: Advanced knowledge of modern idioms and best practices.
  

• Frameworks & Modelling: Deep experience with FastAPI, Pydantic, and Celery/RabbitMQ.
  

• Data & Graph Modelling: Proficiency in relational, document, and graph databases (specifically ArangoDB or similar).
  

• Distributed Systems: In-depth experience in microservices design, including synchronisation, replication, consensus, and event-driven design (DDD).
  

• Security & Observability: Strong understanding of AuthN/AuthZ (IAM, RBAC, OAuth, OIDC) and observability stacks (Prometheus, Grafana, OpenTelemetry).
  

• Cloud Native: Solid understanding of Kubernetes concepts (Namespaces, Ingress, Service Mesh).
  

General Requirements:

• Eligibility: Residency in the EU, EEC, UK, or Switzerland is mandatory.
  

• Education/Certifications: Preferred certifications in TOGAF, AWS, Azure, or GCP.
  

• Soft Skills: Ability to work independently, manage technical complexity, and mentor engineering groups in an Agile/DevOps environment.
  

Benefits

As a freelancer / contractor with us, you enjoy flexible working hours and the freedom to choose your own projects. Our platform gives you access to exciting projects in various industries and supports you in advancing your career. You'll benefit from competitive pay and a dedicated team to help you with any questions you may have. Work independently and utilise our strong network to achieve your professional goals.