Senior .NET Full-Stack Engineer — Hybrid Cloud/K8s

Eastern Peak; Województwo mazowieckie; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

Eastern Peak in Warsaw is seeking a Senior Full-Stack Engineer with a strong backend core to design, build, and operate backend services in C# / .NET for a large-scale, multi-tenant cloud platform.

You will work across Kubernetes, cloud networking, databases, and Redis, own features end to end, contribute to frontend when needed, and collaborate daily with Israel-based engineers as part of a hybrid team.

Qualifications

• 5+ years of hands-on software engineering in a product environment.
• 5+ years of experience with .NET (C#).
• 3+ years building large-scale backend systems; strong backend design patterns.

Responsibilities

• Design, build, and operate backend services in C# / .NET that power the platform at scale.
• Contribute to backend architecture: data access, performance, and scalability.
• Work hands-on with cloud infrastructure: Kubernetes, VMs, cloud networking, databases, Redis.
• Own features end to end from design through deployment and production; contribute to frontend when needed.
• Use AI-assisted development tools to speed up development, debugging, and code reviews.
• Collaborate with the team through design discussions, code reviews, and shared delivery ownership.

Skills

5+ years industry experience

5+ years .NET (C#)

3+ years backend architectures

1+ years frontend experience

English communication

team collaboration in hybrid setup

Tools

Kubernetes

VMs

Cloud networking

Redis

Databases

Job description

Eastern Peak in Warsaw is seeking a Senior Full-Stack Engineer with a strong backend core to design, build, and operate backend services in C# / .NET for a large-scale, multi-tenant cloud platform.

You will work across Kubernetes, cloud networking, databases, and Redis, own features end to end, contribute to frontend when needed, and collaborate daily with Israel-based engineers as part of a hybrid team.