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10Pearls is seeking a Senior Software Consultant — Application Development (L2 – Senior) to build and scale core application features that power our AIX Ontology platform. In this role, you will work closely with the architecture defined by the Backend Architect and take ownership of delivering production-grade, well-tested, and well-documented Python backend services. You will be responsible for developing GraphQL resolvers, domain logic, and system integrations that connect agents, UI, and ontology services, ensuring scalability, security, and performance.
Job Responsibility:
Design and build core backend application features, including GraphQL query, mutation, and subscription resolvers
Implement tenant-aware authorization and optimize data loading to avoid N+1 query issues
Develop and maintain the Action Registry, including FSM workflows such as proposal creation, simulations, approvals, execution, and audit logging
Build and manage Tool Catalog services, including CRUD operations and registration workflows for tools and model-as-tool entries
Integrate backend systems with supporting services such as OPA for policy evaluation, Kafka for event emission, Vault for secret management, and audit-event generation
Write clean, maintainable, and production-ready Python code aligned with system architecture standards
Implement comprehensive unit, integration, and contract tests, ensuring performance and coverage standards are met
Participate in design reviews, proactively manage technical debt, and contribute to overall code quality
Collaborate effectively with cross-functional teams and mentor junior engineers when onboarded
Requirements:
3–5 years of experience building production-grade Python backend systems
Strong experience with backend frameworks such as FastAPI, Flask, Django REST Framework, or equivalent
Hands-on experience with PostgreSQL, including schema design, complex queries, migrations, and transactions
Proven experience developing GraphQL servers (e.g., Strawberry, Apollo, Hasura, Graphene), including resolvers, subscriptions, and performance optimization
Solid understanding of AsyncIO, Pydantic, SQLAlchemy, or equivalent ORMs
Strong testing practices using pytest, fixtures, mocks, and integration testing strategies
Experience working with containerized environments and Kubernetes-deployed services
Strong written communication skills and collaborative pull request hygiene
Ability to work onsite from Islamabad, Pakistan, and collaborate in an Agile environment
Nice to have:
Exposure to policy-as-code frameworks such as OPA/Rego or ABAC models
Experience with Kafka producers and consumers
Previous experience working on multi-tenant SaaS backend systems
Contributions to open-source Python backend projects