Senior .NET Engineer (#5461)

N-iX • C# • TypeScript • JavaScript • 1 month ago
Apply now
Save
368,611open jobs
9,439companies
50,719added this week
Browse all
Salary
$67k – $71k per year
Location
In office (Kraków)
Seniority
Senior
Employment
Full-Time
Overview
Company
Impact
Profile match

N-iX

N-iX is a global software development and IT consulting company founded in Lviv, Ukraine, in 2002. The firm partners with enterprise clients, mid-sized businesses, and tech startups to deliver custom software engineering, cloud transformation, AI and data analytics, and embedded systems solutions. Operating across multiple delivery hubs in Europe and the Americas, it focuses on helping organizations scale their engineering capabilities and accelerate digital transformation.
n-ix.com • HQ: Lviv, Ukraine • HQ: Valletta, Malta • Data & Analytics • Artificial Intelligence • Software • 1001-5000 employees • Est. 2002

Position Overview:

As a .NET Engineer you will drive the technical modernization of a large-scale system from .NET Framework 4.8 to .NET 10. Your work will span the full backend stack - replacing Windows-only dependencies, refactoring legacy patterns, migrating data access to EF Core, and ensuring every service is portable, containerizable, and ready for AWS cloud deployment. You will collaborate closely with DevOps and database engineers as part of a cross-functional Agile team delivering a phased, production-safe migration.

Responsibilities:

  • Migrate a .NET Framework 4.8 application to .NET 10.

  • Migrate a large database-first Entity Framework 6 model to EF Core 8 across multiple bounded contexts, one domain at a time.

  • Identify and replace Windows-only libraries and assembly references that prevent building and running on Linux.

  • Establish unit test coverage measurement and enforce quality gates as part of the migration pipeline.

  • Collaborate with the DevOps engineer on Dockerfile authoring, environment configuration, and secrets injection.

  • Participate in Agile/SCRUM processes, conduct code reviews, and document migration decisions.

Must-Have Qualifications:

  • 4+ years of C# and .NET backend development with strong knowledge of ASP.NET and ASP.NET Core.

  • Proven, hands-on experience migrating .NET Framework applications to .NET Core / .NET 8, 10 in production.

  • Solid experience with Entity Framework Core.Solid knowledge of DDD, CQRS, and repository patterns in layered .NET architectures.

  • Familiarity with Docker multi-stage builds and Linux container fundamentals for .NET applications.

  • Proficient with xUnit and Moq for unit testing; comfortable with container-wired test setups.

  • Experience with AWS ECS / Fargate and ECR for deploying containerized .NET applications.

  • Familiarity with MassTransit and RabbitMQ or Amazon MQ for event-driven messaging.

  • Experience with Hangfire or similar background job processing frameworks.

  • Proficient in Git and familiar with Agile/SCRUM team processes.

Nice-to-Have Skills:

  • Experience building CI/CD pipelines for .NET projects.

  • Familiarity with micro-frontend architecture and Angular-based single-page applications.

  • Experience with automated code coverage tooling and enforcing coverage thresholds in CI.

  • Experience with performance optimization and scalable enterprise backend systems.

We offer:

  • Flexible working format - remote, office-based or flexible

  • A competitive salary and good compensation package

  • Personalized career growth

  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

  • Active tech communities with regular knowledge sharing

  • Education reimbursement

  • Memorable anniversary presents

  • Corporate events and team buildings

  • Other location-specific benefits

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
368,611 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Similar stack
Same company
Kraków
≈ $20k – $49k per year (Estimated) • Remote • Full-Time • Bachelor's Degree
Python
Ruby
SQL
Databases
Amazon Neptune
Neo4j
AI/ML
Hallucination
LangChain
LangGraph
LLM
Model Context Protocol
Spark
AI Agents
LLM Guardrails
DevOps
Ansible
AWS
Azure
CI/CD
Docker
GCP
GitHub Actions
GitLab CI
Jenkins
Kubernetes
Rest API
Terraform
GitHub
GitLab
QA
Playwright
Postman
Selenium
Swagger
Apply
Remote • Full-Time • 3+ years exp • Cairo
C#
JavaScript
TypeScript
C#
.NET
AI/ML
Copilot
DevOps
Azure
Azure DevOps
CI/CD
Rest API
Analytics
ETL/ELT
Management
Power Apps
Power Automate
Apply
Remote • Full-Time • 3+ years exp • Cairo
C#
JavaScript
TypeScript
C#
.NET
AI/ML
Copilot
DevOps
Azure
Azure DevOps
CI/CD
Rest API
Analytics
ETL/ELT
Management
Power Apps
Power Automate
Apply
Remote • Full-Time • 1+ year exp • Cairo
C#
JavaScript
TypeScript
C#
.NET
AI/ML
Copilot
DevOps
Azure
Azure DevOps
CI/CD
Rest API
Analytics
ETL/ELT
Management
Power Apps
Power Automate
Apply
SOC Senior Analyst 2 days ago
In office • Full-Time • Bachelor's Degree • Riyadh
DevOps
AWS
Azure
GCP
Cybersecurity
MITRE ATT&CK
Apply
$48k – $72k per year • Remote • Full-Time • 6+ years exp • Master's Degree • Kraków
AI/ML
Claude
Copilot
Cursor
DevOps
AWS
Azure
Rest API
Management
Confluence
Jira
Apply
$59k – $88k per year • In office • Full-Time • 6+ years exp • Bachelor's Degree • Kraków
Java
Kotlin
JavaScript
Java
Spring Boot
Kotlin
Mockito
Frontend
React.js
Mobile
JUnit
DevOps
CI/CD
Jenkins
Kubernetes
QA
Selenium
Apply
Engineering Manager 7 days ago
≈ $79k – $137k per year (Estimated) • Remote • Full-Time • 9+ years exp • Kraków
AI/ML
AI Agents
DevOps
AWS
Azure
GCP
Apply
$73k – $80k per year • Remote • Full-Time • Kraków
DevOps
Akamai
AWS
AWS CDK
Azure
CI/CD
GCP
GitHub Actions
Grafana
Kubernetes
New Relic
Platform Engineering
Terraform
GitHub
Apply
Senior .NET Engineer 10 days ago
$60k – $74k per year • Remote • Full-Time • 4+ years exp • Bachelor's Degree • Kraków
C#
SQL
C#
ASP.NET Core
gRPC for .NET
DevOps
Azure
Azure AKS
gRPC
Kubernetes
Apply
Game Artist 4 hours ago
≈ $13k – $49k per year (Estimated) • Remote/Hybrid • Full-Time • 3+ years exp • Kraków
Game Dev
Unity
Design
Adobe Photoshop
Apply
≈ $9k – $50k per year (Estimated) • Remote/Hybrid • Full-Time • Kraków
JavaScript
PowerShell
Python
Visual Basic
DevOps
GitHub
Robotics
Digital Twin
QA
Postman
Selenium
Apply
≈ $78k – $141k per year (Estimated) • Remote • Full-Time • 7+ years exp • Kraków
JavaScript
Node JS
TypeScript
AI/ML
LLM
A2A
Model Context Protocol
DevOps
AWS
Platform Engineering
Apply
≈ $71k – $120k per year (Estimated) • Equity • Remote/Hybrid • Full-Time • 5+ years exp • Bachelor's Degree • Kraków
DevOps
AWS
Azure
CI/CD
GCP
Apply
≈ $60k – $95k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Kraków
C#
C#
.NET
DevOps
Azure
CI/CD
SLI/SLO/SLA
Apply
See all jobs
This is one of many
368,611 more open roles from verified company boards, updated every day.
Browse all jobs Get matched roles