Senior .NET & API Engineer - Microservices + AI Tools

Seargin; Gdynia; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

B2B Contract

MultiSport

Private Medical Care

Stable and Dynamic International Firm

Engaging Projects and Latest IT

Competitive Rates

Renowned International Projects

Job summary

Seargin is seeking an experienced software engineer in Poland to design, develop and deliver scalable solutions using .NET, C#, React and modern web technologies. You will build APIs with WebAPI, GraphQL and Azure Service Bus, applying microservice principles in an Agile setup.

The role emphasizes full lifecycle responsibility, collaboration with distributed teams, and responsible use of AI-assisted development tools, including Copilot, to improve engineering outcomes.

Qualifications

• 8+ years of professional experience designing, developing and delivering scalable software.
• Strong experience with .NET, C#, MS SQL, React, TypeScript, WebComponents, WebAPI, GraphQL and Azure Service Bus.
• Strong understanding of microservice architecture, APIs and modern system design principles.
• Full Application Lifecycle experience from design to maintenance.
• AI-assisted development with responsible Copilot usage.
• Agile development with fluent English and strong communication.

Responsibilities

• Design, implement, test, deploy and maintain software solutions.
• Collaborate with distributed teams in an Agile environment.
• Leverage AI-assisted development tools responsibly in daily work.

Skills

Full-stack development

Agile & communication

AI-assisted development

English communication

Education

Bachelor's or Master's in CS/SE or related

Tools

.NET

C#

MS SQL

React

TypeScript

WebComponents

WebAPI

GraphQL

Azure Service Bus

Job description

Seargin is seeking an experienced software engineer in Poland to design, develop and deliver scalable solutions using .NET, C#, React and modern web technologies. You will build APIs with WebAPI, GraphQL and Azure Service Bus, applying microservice principles in an Agile setup.

The role emphasizes full lifecycle responsibility, collaboration with distributed teams, and responsible use of AI-assisted development tools, including Copilot, to improve engineering outcomes.