Senior Software Engineer

📋 Descrição da Função

At Whiteflow, we are building AI-first digital products designed to bring the power of AI into real-world public sector environments. Our mission is to transform complex AI and distributed systems into reliable, secure, and high-impact infrastructure that supports the daily work of public servants and decision-makers.

You will join a team responsible for developing a multi-tenant agentic platform that combines structured LLM workflows, tool orchestration, and distributed execution. The goal is not experimentation but delivering production-grade systems capable of operating in demanding public and B2B environments. This role requires autonomy, technical ownership, and responsibility in architectural decision-making.

🎯 Responsabilidades

• Strengthen the robustness and scalability of an event-driven, multi-tenant architecture
• Evolve a product intended to operate at meaningful scale across public and enterprise environments
• Design and implement new AI agent capabilities (planning logic, execution orchestration, tool control, reasoning flows)
• Improve idempotency, delivery guarantees, and failure handling over Redis Streams and consumer groups
• Define and enforce concurrency control, resource isolation, and tenant boundaries
• Improve lifecycle management of ephemeral Docker workers
• Design safe replay and recovery mechanisms in distributed workflows
• Ensure confidentiality, integrity, and secure handling of user data
• Contribute to architectural decisions balancing scalability, cost efficiency, and resilience

📋 Requisitos

• 7+ years of backend engineering experience, including ownership of systems in production
• Proven experience evolving systems into stable, production-grade environments
• Real-world experience with distributed systems under load
• Strong understanding of:
  • Concurrency and async programming
  • Event-driven architectures
  • Message brokers / streaming systems
  • Idempotency and retry patterns
  • Failure modes in distributed systems
  • Experience with Docker and containerized execution
  • Experience designing secure, multi-tenant systems
  • Understanding of security best practices in distributed and multi-tenant systems

💰 Condições

• Employment contract
• High autonomy and direct architectural impact on product evolution and strategic technical decisions
• Clear opportunity for professional growth and career progression
• A collaborative environment with close proximity to product and strategic decisions
• Access to modern tooling and infrastructure, including state-of-the-art AI technologies
• Continuous learning and exposure to real-world challenges within Public Administration contexts
• Hybrid work model (remote + on-site presence in the Guimarães region)
• Start date: to be defined according to candidate availability
• Profit sharing and equity participation aligned with long-term commitment and contribution

Join Whiteflow if you’re ready to take on a role with real technical depth, meaningful impact, and strong growth potential. Apply here: https://forms.gle/ESSWJWZp7ebpov5Z6