Senior Full-Stack .NET developer - 34292

15 August
Specialization: .NET Front-End / JS
Open to offers now
Poland
Warsaw
More than 5 years
Advanced/Fluent
Considering options
Full-time office work
Part-time work
Remote work (full-time)
Freelance (one-time projects)
Relocate
Backend-leaning .NET Software Engineer with 5+ years building systems that keep business operations running across microservice and monolithic architectures, complemented by full-stack work in Angular and React.

Backend-leaning .NET Software Engineer with 5+ years building systems that keep business operations running across microservice and monolithic architectures, complemented by full-stack work in Angular and React. Comfortable with MS SQL Server, PostgreSQL, MongoDB, and Redis, with a focus on solving real business problems over chasing trends. Experienced with Azure cloud deployment and infrastructure, and AI-assisted development practices to speed up delivery. Comfortable owning features end-to-end, from architecture to production, mentoring engineers and driving code review culture. 

Education
National University of Radio Electronics
Bachelor. Faculty: Automation and Computer-Integrated Technologies
Specialty: Automation and Computer-Integrated Technologies
September 2020 - June 2021

• Solid foundation in data structures, object-oriented design, operating systems, and client-server interaction.


• Hands-on experience building full-stack applications using .NET with relational SQL databases.


• Developed skills in software engineering methodology, git version control and designing scalable architecture. 


Experience
Full-Stack Software Engineer
MindStorm
November 2020 - August 2022

• Investigated and resolved production incidents using application performance metrics and Graylog logs, improving incident response and system reliability.


• Designed and maintained relational schemas (MS SQL Server, PostgreSQL). Optimized read-heavy and EF Core queries via execution-plan analysis and indexing, cutting query latency by up to 40% and improving server responsiveness.


• Set up real-time Slack alerting for errors, failed jobs and anomalies - cut incident detection time from days to minutes.


• Built Angular frontend with reusable components, reducing code duplication and simplifying API integration.


• Drove code quality and knowledge sharing - applied SOLID and Clean Architecture principles through refactoring and code reviews, making changes safer and easier to deliver.


Full-Stack Software Engineer
CodeHaven Solutions
September 2022 - July 2026

• Unified 10+ partner integrations into a shared NuGet package (documented in Confluence) - cut new integration development time from 3 days to 5 hours, improved stability.


• Standardized AI-assisted development through repository-level agent instructions, guiding coding conventions, security practices and build/test validation before code review, improving code consistency and reducing review overhead.


• Automated CI/CD pipelines on Azure DevOps, reducing regression testing time by 55% and eliminating manual deployments, enabling 2x more frequent releases.


• Improved system availability by decomposing a monolith into 4 event-driven microservices, using SAGA for cross-service data consistency and the Outbox Pattern for reliable event delivery, eliminating silent message loss.


• Identified and resolved two Azure infrastructure inefficiencies: redesigned polling-based report ingestion as an event-driven Azure Serverless Function and replaced Base64 image storage with Azure Blob Storage with automated Archive Tiering, reducing overall project infrastructure costs by 30%.


• Delivered 5+ production services end-to-end - from requirements and architecture design through deployment and monitoring with Prometheus/Grafana, ensuring production observability and owning the full delivery lifecycle.


• Built React frontend with reusable component architecture, form validation and Redux state management, improving UI flows and reusability.


Skills
.NET - 6 years
Similar candidates
Open to offers now
Poland
Warsaw
More than 5 years
Advanced/Fluent
Considering options
Full-time office work
Part-time work
Remote work (full-time)
Freelance (one-time projects)
Relocate
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