Senior C# and MS SQL Developer

Plurio is an AI agent for performance marketing teams. We're not another dashboard or analytics tool — we're building AI that actually does the work: analyzes campaigns, spots problems, reallocates budgets, and explains what's happening in plain language.

### What You'll Own - **Backend feature development**: Build and extend microservices in ASP.NET Core that power our marketing analytics engine — APIs, business logic, integrations with ad platforms and downstream consumers. - **Database work**: Design and evolve schemas, T-SQL, indexes, and queries that support attribution reports and analytical workloads. Read query plans, find regressions, and tune with measurable before/after. - **Performance and scale**: Drive optimization across the stack — both in C# (async paths, ORM tuning, batching, caching) and SQL (indexes, statistics, plan stability). Help the platform stay fast as data volume grows. - **Architecture and clean engineering**: Apply SOLID and design patterns where they earn their keep; keep services small, contracts clear, and migrations safe in a live system. - **Quality and operations**: Code review, incident analysis, CI/CD with Azure DevOps, Git the way the team does it. AI-assisted coding is part of how we work — we actively use various AI tools (Cursor, Copilot-class tools, and more) and provide team access to premium services; use them where they improve quality and speed, not as a substitute for judgment. - **Collaboration with engineering**: Partner with product, data, and AI engineering on data model and service boundaries: migrations, backward compatibility, clear contracts between app and database.

### You're the Right Person If - A minimum of four years of hands-on experience in MS SQL and C# development is required. - Solid knowledge and application of design patterns and SOLID principles. - Experience working with Entity Framework Core (or another production ORM in C#). - Proven proficiency in web development, specifically in ASP.NET Core. - Experience and interest in AI-assisted coding (we actively use various AI tools and provide team access to premium services). - Proficiency in using version control systems, particularly Git. - Intermediate+ English language skills and native-level Russian. - You live and work in an Americas (US) timezone with reliable overlap on US business hours — required. - Providing code examples hosted on Git or other repositories is highly appreciated.

### It'd Be a Plus If - Advanced experience with MS SQL performance tuning (query plans, indexing strategy, columnstore, partitioning). - Production experience with RabbitMQ, Docker, observability (Grafana, Prometheus), or Azure DevOps. - Blazor experience. - Familiarity with marketing attribution concepts — helpful context; C# and SQL skills come first.

Plurio is an AI agent that analyzes marketing campaigns, predicts outcomes, and automatically optimizes performance using full-funnel data and attribution, built on Elly Analytics' data foundation. It eliminates manual work by catching inefficiencies early, scaling winners, and enabling optimization rules via natural language chat. The company targets performance marketing to drive revenue growth and predictable results.