Senior Backend Engineer

Lisbon, Portugal

Apply by 9 Oct 2026

Competitive

Job Ref.: BH-58136

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Job Description

Our client is looking for a Senior Backend Engineer to build and scale an AI-native platform that combines intelligent applications, autonomous agents, and business workflows. This role focuses on developing backend services that orchestrate AI capabilities, enterprise systems, APIs, and workflow automation.

Key Responsibilities
  • Develop scalable backend services, APIs, and microservices.
  • Build orchestration layers connecting AI agents, business logic, enterprise systems, and human approval workflows.
  • Design solutions for long-running processes, state management, retries, and fault recovery.
  • Integrate enterprise platforms, third-party applications, and data sources.
  • Implement secure authentication, authorization, and API security.
  • Ensure platform reliability through monitoring, logging, and observability.
  • Collaborate with cross-functional teams across Product, AI/ML, Data, and Platform Engineering.
Requirements
  • Strong experience in backend software development and modern engineering practices.
  • Solid knowledge of distributed systems, cloud-native applications, microservices, APIs, and event-driven architectures.
  • Experience integrating enterprise systems using REST APIs and messaging technologies.
  • Strong understanding of workflow orchestration, scalable system design, and resilience patterns.
  • Knowledge of authentication, authorization, and secure software development.
  • Experience with AI-assisted development tools is a strong advantage.
Ideal Candidate: A hands-on senior engineer with expertise in backend architecture, system integrations, and workflow orchestration, who is passionate about building scalable AI-powered platforms and intelligent automation solutions.


By applying for this role, you consent to SGI contacting you by telephone regarding recruitment services, market updates, and relevant business opportunities

We believe in equal opportunity for all and actively encourage applications from diverse backgrounds, experiences, and perspectives.
Source Group International Ltd is acting as an Employment Business in relation to this vacancy 

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