Agentic AI Backend Developer

We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we work with full autonomy and independently choose our technologies, processes, and ways of working. We deliver a wide range of IT projects in Poland and internationally, across multiple domains and technologies. Our collaboration is built around the CARE philosophy, focusing on responsible project matching, transparent cooperation, and long-term professional growth.

• Background as a Senior Backend Engineer working with .NET/C# and PostgreSQL, with experience delegating software generation tasks to AI coding platforms.
• Proficiency in directing AI developer tools (preferably Claude Code), including setting up multi-agent sessions, configuring custom tools/skills, and structuring repository contexts.
• Expertise in specification authoring to translate business needs into unambiguous, machine-executable prompts and requirement models.
• Experience in software verification including scenario-driven validation, holdout testing datasets, quality checkpoints, and automated evaluation systems.
• Strong architectural judgment to evaluate AI-generated proposals for algorithmic efficiency, memory utilization, database performance, and multi-tenant isolation.
• Hands-on experience developing developer toolchains such as Model Context Protocol implementations, isolated sandbox runners, and agent-compatible CI/CD pipelines.
• Fluency reading .NET/C# and relational SQL to audit generated code, inspect query execution plans, and review memory management patterns flagged by validation systems.
• Written English communication skills to create specifications, behavioral testing criteria, and system designs readable by technical teams and automated agents.
• Valuable additions: familiarity with multi-tenant SaaS architectures, event-driven data streaming (Kafka, Debezium, MassTransit, RabbitMQ), Azure cloud services, container platforms (Docker, Kubernetes), and synthetic testing environments.
• Must live in Poland and/or be eligible to work there.

• Drive end-to-end feature delivery for core data architecture modules including multi-tenant ingestion, schema lifecycle, temporal data tracking, snapshots, computed fields, and streaming exports by steering autonomous AI agent workflows.
• Formulate clear, executable Product Requirement Prompts and structural specification documents as the source of truth across the engineering codebase.
• Orchestrate parallel AI agent runs, continuously monitoring outputs against defined specifications to increase first-pass generation accuracy and minimize manual code review.
• Design and refine the agent execution framework integrating deterministic tooling (linting, build verification, version control) with reasoning models, Model Context Protocol servers, sandboxed environments, and vector retrieval.
• Oversee pipeline unit economics and data governance, optimizing token budgets and execution latency while establishing automated guardrails to prevent credentials and sensitive data exposure.
• Implement verification machinery by designing external behavioral test suites, unexposed evaluation benchmarks, synthetic integration environments, and automated AI-on-AI review steps.
• Establish automated load testing and scenario validation gates enforcing memory boundaries, query efficiency, and high-throughput data processing.
• Guide rapid incident resolution for data platform services using AI tools, collaborating with Support and Engineering teams with functional domain knowledge.

You need to live in Poland and/or be eligible to work here.