Backend Developer Porto

Backend Developer
Porto
Porto, Porto District, Portugal

Job Title: Backend Developer
Location: Remote
Type: Full-time
About Us
Oraion is your single source of truth for enterprise data. Oraion uses agentic AI to turn structured and unstructured enterprise data into
- obvious insights, instantly. Oraion helps you make faster, more informed decisions and even automate complex tasks, all through a
- serve,
- based AI agent embedded in your existing workflow such as Slack, Teams or via our Enterprise Intelligence Platform. We’re looking for a
- solving, technically sharp Backend Developer to join our team and build the scalable,
- performance systems that power our platform. About the Role
As a Python Backend Developer specializing in AI infrastructure, you'll architect and implement the data processing pipelines and API services that power our agentic AI platform. You'll work with our ML engineers to optimize the connection between our data systems and AI models, while ensuring robust, scalable performance across all integrations. Responsibilities
Design and develop Python-based backend systems using Django and Flask to support our AI/ML workflows and data processing pipelines
Implement and maintain RESTful APIs for our Lang
Chain-powered AI components and
- facing services
Experience with
- based access control (ABAC) permissions to ensure data security across enterprise environments
Build and optimize asynchronous processing systems using Celery for background tasks and event handling
Extend our Django Channels implementation for
- time communication features
Containerize services with Docker and implement CI/CD pipelines for AWS deployment
Contribute to our future Rust-based
- critical components
Collaborate with frontend React developers on API implementations
Requirements5+ years of Python backend development experience with proven expertise in Django and/or Flask frameworks
Strong experience with Postgre
SQL, including performance optimization for
- intensive applications
Experience implementing
- grained permissions systems, preferably ABAC, in enterprise applications
Practical knowledge of asynchronous Python using Django Channels and experience with Celery task queues
Experience setting up and managing ETL/ELT tools for data integration using tools like dlt and dagster
Experience deploying and managing applications on AWS, particularly with containerized services
Familiarity with Lang
Chain or similar AI orchestration frameworks
Track record of building scalable systems in a startup environment where requirements evolve rapidly
Ability to write clean,
- tested, and
- documented code
Experience with graph databases or implementing
- based data structures
Exposure to Rust or interest in learning Rust for
- critical components
Previous work with LLM-based applications or AI agent systems
Experience with
- time data processing or streaming architectures
Startup experience is a plus
What We Offer
Ground-floor opportunity to shape
- driven AI solutions at a
- growing startup
Work alongside experienced founders and a driven team
Competitive compensation + early equity
Remote-friendly, flexible work culture