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Platform Engineer

Platform Engineer

Senior Backend Engineer (Microsoft 365 / Graph API / Exchange Online)

ARNIA

Bucharest

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Описание вакансии

Artificial Intelligence becomes truly valuable when it connects seamlessly with the tools people already use every day.

That’s exactly what this role is about.

We’re building a new engineering team responsible for creating intelligent backend services that integrate Agentic AI capabilities directly into the Microsoft ecosystem, enabling secure, scalable, enterprise-ready automation.

If you enjoy solving complex integration challenges and building robust cloud services, this opportunity is for you.

What you’ll be building

You’ll be responsible for developing backend services that connect Azure OpenAI with Microsoft 365 through Microsoft Graph API.

The first solution is an Agentic Email Orchestration Service capable of understanding, processing and orchestrating enterprise email workflows.

You’ll also contribute to future reusable services supporting our broader Agentic Case Management platform.

Your responsibilities

  • Develop backend services supporting Microsoft 365 integrations.
  • Design secure integrations with Microsoft Graph API.
  • Build Exchange Online email workflows.
  • Develop scalable APIs using Python and FastAPI where required.
  • Integrate Azure OpenAI capabilities into enterprise solutions.
  • Collaborate with architects and backend engineers.
  • Design reusable integration components.
  • Ensure security, reliability and scalability.
  • Deliver production-ready software through short delivery iterations.
  • Contribute to architecture and engineering discussions.

What we’re looking for

Required

  • Strong experience with Microsoft Graph API.
  • Experience integrating Microsoft 365 services.
  • Exchange Online expertise.
  • Experience developing backend services.
  • Python experience is highly appreciated.
  • FastAPI or similar backend frameworks.
  • Azure experience.
  • REST API design.
  • Authentication (OAuth2 / Entra ID).
  • Excellent English communication skills.

Nice to have

  • Azure OpenAI.
  • APIM.
  • AI Agents.
  • Event-driven architecture.
  • Microservices.
  • Azure Functions.
  • Docker.
  • Kubernetes.

Our engineering culture

We believe modern software engineering combines strong technical fundamentals with intelligent use of AI.

We’re looking for engineers who embrace automation, continuously improve their craft, and use modern GenAI tools to increase delivery quality without compromising engineering standards.

Why join this team?

Because you’ll:

  • Join a newly formed engineering team.
  • Build enterprise AI integrations.
  • Work on Microsoft technologies at scale.
  • Design reusable services instead of one-off integrations.
  • Help shape the architecture of future AI-powered products.
  • Work alongside experienced engineers in a highly collaborative environment.
    Share this job:
    competitive compensation packages
    flexible working hours
    job rotation
    learning through Arnia Academy
    attractive projects
    trainings
    international work experience
    referral program
    medical benefits

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