Senior .NET Engineer with GenAI/OpenAI

Net

centrum, Warszawa

Optiveum

23 000 - 26 000PLN

Net per month - B2B

Full-time

B2B

Senior

Remote

Tech stack

English

C1

.NET C#

advanced

Microservices

advanced

REST API

advanced

Cloud Native

advanced

GenAI

regular

CI/CD

regular

Docker

regular

Azure

regular

OpenAI

regular

Kubernetes

regular

Job description

Our Client

Our client is a leader in the SaaS industry, specializing in software solutions for insurance companies. With 20 years of experience, they offer a comprehensive software package that supports key insurance processes such as policies, claims, reinsurance, and payments. They are renowned for their cutting-edge solutions, which they configure and tailor to meet the specific needs of their clients.

Currently undergoing a large technological transformation and building a competence center in Warsaw, the company is moving towards a Cloud Native, multi-tenant platform to modernize its infrastructure. They are making a significant investment in cloud services to create a more scalable, efficient system.

Role

A seasoned .NET engineer who not only thrives in cloud-native development but also has hands-on experience working with GenAI/OpenAI technologies. You won't be expected to build your own LLMs – instead, we’re looking for someone who has integrated OpenAI services (e.g., GPT) into business applications, understands the capabilities and limitations of these tools, and knows how to apply them effectively.

• Play a key role in developing and maintaining the main SaaS platform for insurance companies
• Oversee the transformation from virtual machines to a fully cloud-native, multi-tenant system
• Collaborate with global teams and Professional Services to ensure seamless integration and configuration of software
• Drive innovation and support large-scale cloud-native investments
• Ensure high-quality delivery of solutions tailored to the insurance sector

Key competences

• 5+ years of experience with .NET (C#)
• Hands-on experience with microservices and cloud-native architecture (preferably Azure)
• Strong knowledge of REST APIs, Azure Functions, Event Grid, Azure Service Bus
• Experience with databases (SQL and/or NoSQL)
• CI/CD, containerization (Docker), Git
• Experience with GenAI/OpenAI – integrating OpenAI services (e.g., GPT) via APIs into real-world solutions
• Solid understanding of cloud application security
• Fluent English (spoken and written)

Nice to have:

• Knowledge of Domain-Driven Design
• Experience with Infrastructure-as-Code tools (e.g., Terraform)
• Experience working in international teams

Salary range & Conditions

• fully remote role- based in Poland
• B2B cooperation
• 23.000-26.000 PLN net
• paid holidays

Published: 09.08.2025

Meet the company

Optiveum

Optiveum is a boutique consultancy founded in 2020 with over 20 years of experience by its founders. The company specializes in supporting businesses, particularly from IT and tech industries, in Poland and Central Europe. They offer services such as building teams (mainly IT and sales), go-to-market strategies including digital marketing, sales outsourcing, and legal and tax advisory. Their recruitment services focus on experts and managers, primarily IT and engineers, with a large candidate database. They also provide strategic consulting for market entry and outsourcing services for IT teams, sales, and recruitment process outsourcing.

Company profile

Office location