Senior .net Backend Developer – Performance & Data Specialist

KID-Systeme

Gdansk, Poland
Hybrid (up to 2 days working from home weekly)
.net and c# backend development
Entity framework core optimization
Sql query analysis and optimization
KID-Systeme is seeking a Senior .NET Backend Developer with expertise in database engineering and cloud-native applications to enhance flight operations technology. The role emphasizes technical design, query optimization, and mentoring within a hybrid work environment

Job Summary

  • Skywise provides comprehensive ground and onboard solutions designed to increase productivity for aircraft operators worldwide, combining deep industry know-how with an agile development culture to drive innovation in operational efficiency and sustainable aviation.
  • The role involves leading the design of scalable and efficient database schemas within a microservices architecture, optimizing SQL queries, and mentoring engineers on best practices for data access patterns.
  • We offer a hybrid work environment with up to 2 days working from home weekly, competitive salary dependent on experience, private medical coverage, life insurance, employee stock ownership plan, and opportunities for international projects and professional development.

Matching Summary

Match Score: 85

KID-Systeme is seeking a Senior .NET Backend Developer with expertise in database engineering and cloud-native applications to enhance flight operations technology. The role emphasizes technical design, query optimization, and mentoring within a hybrid work environment.

Skills & Requirements

Must-have

  • .NET and C# backend development
  • Entity Framework Core optimization
  • SQL query analysis and optimization
  • AWS RDS/Aurora performance monitoring
  • Database schema design for SaaS
  • Docker and CI/CD pipelines

Nice-to-have

  • Unit and integration testing expertise
  • AWS CloudWatch monitoring familiarity
  • Automated functional testing with Python
  • ISTQB best practices knowledge
  • ASP .NET MVC and Web Pages understanding
  • JavaScript working knowledge
  • Experience with aviation data structures

Key Requirements

  • Minimum 6 years backend development experience
  • Advanced Entity Framework Core knowledge
  • Expertise in raw SQL and execution plan analysis
  • Experience optimizing AWS RDS/Aurora databases
  • Experience designing multi-tenant SaaS schemas

Work Rights

Not specified

Tailored Resume

Cover Letter