Senior BackEnd Engineer

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AxoniusCybersecurity
Remote PortugalFull-TimeSenior
Salary not disclosed
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Job Details

Experience
5+ years
Required Skills
DockerPythonMongoDBC#FastAPIRedisRESTful APIsLinux

Requirements

  • 5+ years of software development experience specializing in backend systems architecture and distributed components.
  • Hands-on proficiency in Python or C# with demonstrated expertise in clean code architecture, object-oriented design, and maintainable software patterns.
  • Proven track record of leading technical projects from design through production deployment, including task breakdown, milestone planning, and risk mitigation.
  • Practical experience designing and consuming RESTful APIs, asynchronous communication flows, and multi-tier data pipelines.
  • Experience with AsyncIO, FastAPI, Celery, Docker, Linux, MongoDB, and Redis (preferred).
  • Experience handling complex data structures or enterprise network topologies (preferred).
  • Experience modernizing legacy backend infrastructures with zero-downtime deployment strategies (preferred).
  • Prior experience acting as a technical team lead, guiding sprint planning, and mentoring (preferred).

Responsibilities

  • Architect and scale end-to-end Python backend systems, microservices, and APIs using AsyncIO, FastAPI, Celery, MongoDB, and Redis.
  • Lead end-to-end technical initiatives by breaking high-level platform goals into actionable sub-tasks, multi-phase delivery milestones, and backlog priorities.
  • Build high-throughput integrations with external APIs, third-party software applications, and complex data sources.
  • Collaborate with Product, Frontend, DevOps, and Security teams to establish decoupled software boundaries and risk-mitigated deployment strategies.
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