Stack .NET Developer / Algorithm Engineer – Backend Focus

CloudGeometry; Polska; Remote; PLN 200,000 - 320,000; Full time

Job summary

CloudGeometry is seeking an experienced Full Stack .Net Developer, primarily backend with some frontend, to join our team and work on core components of a healthcare cost transparency platform. This role involves data-driven microservices, APIs, and cloud-based infrastructure within a fast-paced agile environment.

You should have 6+ years in C#/.Net Core 8+, strong SQL and EF experience, and be comfortable tackling algorithmic challenges.

Qualifications

• Must-have: strong data structures and algorithms, solid OOP and design patterns, 6+ years with .NET (C#/Net Core 8+), EF and SQL, plus experience with microservices and REST APIs.
• Nice to have: React, AWS SDK, Docker, NoSQL, message queues, Hangfire/Redis, and cloud-native SaaS multi-tenant experience.

Skills

Data structures

Algorithms

OOP design patterns

C#/.Net Core 8+

Entity Framework

SQL

Microservices

RESTful Services

Communication skills

Algorithmic problem solving

Tools

React

AWS SDK

Docker

Redis

Hangfire

NoSQL databases

Message queues

Job description

Remote,

We are looking for an experienced Full Stack .Net Developer, very strong on backend with some experience on F/E to join our team and work on core components of a system designed to reduce healthcare costs through drug cost transparency at the point of care. This is a complex product featuring multiple integrations, APIs, a microservice architecture, and cloud-based infrastructure.

The ideal candidate will have a strong background in data-driven and microservices architecture, algorithm thinking and use and extensive experience working with data. Additionally, they should have the ability and willingness to solve algorithmic challenges, and write clean, high-quality code while collaborating within a dynamic agile team.

This role requires flexibility, resilience, and the ability to adapt to changing priorities. We value independent thinkers, quick learners, and self-starters who thrive on solving problems in a fast-paced environment.

Requirements

Must

• Strong in Data Structure and Algorithm
• Strong in Recursion
• Strong understanding of OOP principles and design patterns
• At least 6 years of experience Hands-on experience with .NET (C#/.Net Core 8+)
• Experience with Entity Framework
• Hands-on experience with Entity Framework
• Proficiency in SQL
• Analytical skills for solving challenges in complex systems
• Some experience with microservices, RESTful services, API
• Strong communication skills including the ability to reconcile competing business and technical viewpoints
• A strong ability and willingness to solve algorithmic tasks

Nice to Have

• Some experience with React
• Hands-on experience with Amazon Web Services (SDK)
• Experience with NoSQL databases
• Familiarity with message queue systems
• Hands-on experience Hangfire and Redis
• Experience with Docker
• Extensive experience with data-driven architecture and working with data-intensive systems
• Demonstrated experience designing and building cloud-based SaaS multi-tenant systems

About CloudGeometry

At CloudGeometry, we build cloud-first, AI-driven solutions for some of the most demanding companies out there, from Silicon Valley startups to US Fortune 500 enterprises. We’re an AWS Advanced Consulting Partner, CNCF member, Kubernetes Certified Service Provider, and part of the Linux Foundation AI & Data working group.

This is an engineering-first company. People here care about what they build, how they build it, and how it scales. You won’t disappear into a project black hole. Expect real collaboration, real ownership, and yes, sometimes even input from the CEO