Building highly scalable, secure, and cloud-native enterprise solutions with modern .NET technologies, cloud architectures, and automated engineering practices.
I am an accomplished Senior / Principal Software Engineer and Distributed Systems Specialist with a comprehensive track record of designing, scaling, and modernizing secure enterprise platforms in highly regulated domains (Banking, Insurance, Energy, and IoT).
- Active Engagement: Currently deployed via HCL Technologies Poland as a Project Lead and Associate Architect for major European enterprise clients, including Achmea Netherlands and Euroclear Bank Belgium.
- Core Competence: Expert in transforming legacy monolithic applications into highly resilient, event-driven microservices while maintaining a high-velocity, hands-on production output.
- Backend Engineering: C# • .NET 10 • ASP.NET Core • REST APIs • GraphQL • CQRS • MediatR • LINQ • C++
- Frontend Ecosystem: React • Angular 18 • TypeScript • JavaScript • Blazor • WPF • WinForms
- Cloud & DevOps Architecture: Azure PaaS (App Services, Functions, Key Vault, API Management) • Docker • Kubernetes • Terraform (IaC) • GitHub Actions • CI/CD
- Identity & Access Management (IAM): OAuth 2.0 • OpenID Connect • JWT • SAML • Single Sign-On (SSO) • Role-Based Access Control (RBAC) • DevSecOps (SAST/DAST)
- Data, Messaging & Observability: SQL Server • PostgreSQL • MongoDB • Redis Caching • Kafka • RabbitMQ • OpenTelemetry • Serilog • ELK Stack • Polly Policies
.NET 10 • Angular 18 • OpenAI Orchestration
An enterprise-tier processing architecture designed to ingest unstructured multi-channel inputs (Audio, Video, Chat transcripts) and automatically transform them into structured corporate business workflows.
- Demonstrates serverless background ingestion queues and asynchronous data pipelines.
- Features fine-grained prompt token monitoring and strict data exposure filters to prevent corporate compliance risks.
ASP.NET Core Web API • Zero-Trust IAM Topology
A secure, reusable reference architecture built to harden distributed microservices against critical OWASP top-10 vulnerabilities in banking and insurance sectors.
- Enforces centralized OAuth 2.0 validation pipelines and encrypted JWT payload distribution.
- Implements multi-tier Role-Based Access Control (RBAC) and automated Cross-Site Request Forgery (CSRF) mitigation filters.
I specialize in designing and engineering high-impact solutions around:
- System Scalability:
- Architectural pattern design including CQRS, event-driven data streaming, and domain-driven design (DDD).
- Advanced state caching matrices leveraging .NET 10 HybridCache to enforce request coalescing and isolate against cache stampedes.
- Legacy Transformation: Safely decomposing monolithic systems into cloud-native microservices using defensive engineering paradigms (Strangler Pattern).
- Performance Tuning:
- Advanced relational query optimization, distributed multi-tier caching matrices, and connection pool stabilization under high load.
- Multi-node data consistency design using distributed locks (Redlock) to isolate multi-threaded runtime race conditions.
- Current Location: Krakow, Poland (EU Blue Card Holder • Eligible for Fast-Track Intra-EU Visa Transfer)
- Target Destination: Netherlands (Amsterdam / Utrecht / Rotterdam area • Open to Hybrid/On-site setups)
- Professional Network: Connect with me on LinkedIn
- Code Portfolio: Explore my Repositories