Senior Backend Platform Engineer—Cloud, Microservices & AI

Gramian Consulting Group; Poland; On-site; PLN 180,000 - 300,000; Full time

Job summary

Gramian Consultancy is seeking a Senior Backend / Platform Engineer to build scalable backend services and platform components powering production AI applications. The role emphasizes microservices, APIs, cloud integration, authentication, performance optimization, and secure platform engineering across AWS and Azure.

You will design and implement RESTful and GraphQL APIs, integrate databases and third-party services, and collaborate with AI engineers to deploy models in containerized

Qualifications

• 5–10 years of backend, platform, or software engineering experience.
• Hands-on Python and/or Node.js development.
• Experience building scalable, cloud-based apps.
• Skilled in RESTful or GraphQL API design.
• Experience with authentication, authorization, and RBAC.

Responsibilities

• Design and build scalable, secure microservices and backend APIs.
• Develop RESTful and GraphQL services for production-grade apps.
• Integrate databases, third-party services, and AI systems.
• Optimize latency, throughput, and resources for real-time workloads.
• Implement enterprise authentication, authorization, RBAC, and rate limiting.
• Build secure service-to-service integrations across clouds.
• Maintain coding standards and engineering quality.
• Write integration tests and participate in code reviews.
• Collaborate with AI engineers to deploy models in containerized environments.
• Apply Git, CI/CD, testing, and cloud engineering best practices.

Skills

Python

Node.js

REST APIs

GraphQL

RBAC / Auth

Cloud platforms (AWS/Azure)

Git / CI/CD

English

Job description

Gramian Consultancy is seeking a Senior Backend / Platform Engineer to build scalable backend services and platform components powering production AI applications. The role emphasizes microservices, APIs, cloud integration, authentication, performance optimization, and secure platform engineering across AWS and Azure.

You will design and implement RESTful and GraphQL APIs, integrate databases and third-party services, and collaborate with AI engineers to deploy models in containerized