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Software Engineering
.NET Engineer
Senior
Poland, Ukraine
Remote
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We are seeking a Senior .NET Engineer to redesign and modernize our data archiving and data presentation strategy for a high-volume sensor monitoring system. In this role, you will re-architect how years of incoming telemetry data are stored, archived, and queried, ensuring seamless, high-performance UI visualizations without disrupting existing data ingestion pipelines.
What project we have for you
QIMS (Quality Information Management System) is a business-critical platform used by a global manufacturing organization to support laboratory operations, quality control processes, and production decision-making. The system integrates data from laboratory instruments and enterprise applications, providing quality management and reporting capabilities across multiple manufacturing sites.
Following a comprehensive assessment, the organization launched a multi-year modernization and performance improvement program focused on increasing platform reliability, scalability, and operational efficiency. The program includes application modernization, database optimization, reporting enhancements, observability implementation, technical debt reduction, and adoption of modern engineering practices.
Key Focus Areas
- Application modernization and architectural improvements
- Performance and scalability optimization
- SQL Server and reporting enhancements
- Observability and monitoring implementation
- Reliability and resilience improvements
- Technical debt remediation
- Release and operational excellence practices
- Continuous platform evolution and cloud-readiness initiatives
What you will do
- Storage & Archiving Architecture: Redesign the cold/hot data storage strategy for historical sensor telemetry (transitioning from monolithic SQL Server tables to partitioned, compressed, or specialized storage).
- Data Access & Presentation Layer: Optimize .NET APIs and data fetching logic to ensure good query performance for frontend dashboards and historical data visualization over large time spans.
- Background Data Pipelines: Design and build resilient, high-throughput .NET background services (Worker Services, Hangfire, etc.) for automated data aggregation, downsampling, and archiving without locking active tables.
- Database Optimization: Configure table partitioning, Columnstore indexes, or introduce secondary time-series/analytical databases (e.g., ClickHouse, TimescaleDB, Parquet/S3) where appropriate.
- Integration: Ensure seamless backward compatibility with existing data ingestion workflows while adapting the Data Access Layer (DAL) to transparently query multi-tiered storage.
What you need for this
Technical Expertise
- Core Stack: 5+ years of experience with C# / .NET (.NET 8/9), ASP.NET Core Web API, and background/worker services.
- SQL & Data Engineering: Advanced experience with MS SQL Server (query optimization, execution plans, indexing strategies, partitioning, Columnstore indexes, and archiving techniques).
- Data Access Frameworks: Deep knowledge of Entity Framework Core, Dapper, or custom ADO.NET implementations tuned for maximum read/write performance.
Architecture & Design
- Experience optimizing read performance for complex data visualization tools, charts, and reporting dashboards.
- Strong understanding of asynchronous programming, multithreading, and batch processing in .NET.
Nice-to-Have Skills
- Experience with specialized time-series or columnar databases (e.g., ClickHouse, TimescaleDB, InfluxDB, Apache Parquet).
- Familiarity with distributed messaging/queuing systems (e.g., RabbitMQ, Kafka, Azure Service Bus).
- Knowledge of cloud storage solutions (Azure Blob Storage, AWS S3) for long-term data archiving.
What it’s like to work at Intellias
At Intellias, where technology takes center stage, people always come before processes. By creating a comfortable atmosphere in our team, we empower individuals to unlock their true potential and achieve extraordinary results. That’s why we offer a range of benefits that support your well-being and charge your professional growth.
We are committed to fostering equity, diversity, and inclusion as an equal opportunity employer. All applicants will be considered for employment without discrimination based on race, color, religion, age, gender, nationality, disability, sexual orientation, gender identity or expression, veteran status, or any other characteristic protected by applicable law.
We welcome and celebrate the uniqueness of every individual. Join Intellias for a career where your perspectives and contributions are vital to our shared success.
