Senior .NET Backend Developer IRC303612

GlobalLogic; Poland; Hybrid; PLN 180,000 - 320,000; Full time

Benefits offered by this job

Flexible relocation

Comprehensive benefits

Career development

DEI matters

Job summary

GlobalLogic Poland seeks an experienced backend engineer to join a modern C#/.NET 8 ecosystem, building secure, scalable RESTful services for regulated environments.

You will work across monolithic and microservices layers, leveraging EF Core with SQL Server and Azure deployments, in a multinational Agile setting.

Qualifications

• 5+ years of commercial software engineering experience focusing on backend using C# and ASP.NET Core / .NET 8.
• Experience in hybrid monolith + distributed microservices architecture.
• Design, build and optimize scalable, secure RESTful APIs using modern patterns.

Responsibilities

• Design, implement, and maintain reliable, secure backend services using C# and .NET 8 across monolithic and microservices layers.
• Develop and tune high-performance REST APIs consumed by modern frontends (Blazor/Web).
• Develop and maintain data models and optimized queries with EF Core and SQL Server.
• Deploy, monitor, and ensure reliability of services on Azure Cloud.
• Contribute to architecture discussions for scalability and domain-driven design (DDD).
• Collaborate with cross-functional teams including frontend, QA, DevOps, and Product.

Skills

C#

ASP.NET Core

.NET 8

Backend dev

REST APIs

EF Core

SQL Server

Azure SQL

Azure Service Bus

Kafka

RabbitMQ

English

Tools

Azure Service Bus

Kafka

RabbitMQ

Azure Cloud

Job description

Asp.Net Core(C#), C#, Microservices, Relational databases, REST APIs

• About the Company: Our customer is an internationally active, rapidly growing telecommunications and IT services company. As the European market leader in the prison sector, they has been developing, installing, and operating secure communication and media systems for over 25 years, making an essential contribution to resocialization in correctional facilities globally.
• Product Ecosystem: You will contribute to the development of a secure, high-availabilitydigital communication portaldesigned for regulated environments. This portal enables secure communication services—including the sending ofdigital letters, voice messages, and photos – and integrates into broader ecosystem of security control systems, billing/financial modules, and access control devices (such as set-top boxes, kiosks, and tablets).
• Engineering Environment: The development team is executing a high-ambitionengineering transformation, modernizing legacy systems into a modern C#/.NET 8 microservices ecosystem. The backend combines a .NET 8 monolith with microservices backed by SQL Server and hosted in hybrid cloud (Azure) environments.

Requirements

• Experience: Minimum5+ years of commercial software engineering experience, with a primary focus on backend development usingC#andASP.NET Core / .NET 8.
• Architectural Balance: Proven experience working within hybrid architectures that combine amonolithic .NET backendwith a distributedmicroservices architecture.
• API & Integration: Proven expertise in designing, building, and optimizing scalable, secureRESTful APIs.
• Data Access: Deep expertise in data modeling, database design, and query optimization usingEntity Framework Core (EF Core)andSQL Server / Azure SQL Database.
• Ecosystem & Messaging: Exposure to event-driven systems and distributed messaging (such asAzure Service Bus, Kafka, or RabbitMQ).
• Regulated Environments: Experience working on secure, high-availability platforms with strict regulatory or mission-critical requirements.
• Communication & Collaboration:Excellent written and spoken Englishskills, with a collaborative engineering mindset for cross-team alignment in a multinational Agile environment.

Job responsibilities

• Backend & Microservices Engineering: Design, implement, and maintain highly reliable, secure, and scalable backend services usingC# and .NET 8across both monolithic and microservices layers.
• API Optimization: Develop and tune high-performanceREST APIsspecifically optimized to be consumed by modern client interfaces likeBlazor WebAssemblyweb frontends.
• Database Management: Develop and maintain robust data models and write optimized queries withEntity Framework CoreandSQL Server.
• Cloud Deployment & Monitoring: Deploy, monitor, and ensure the reliability of backend services hosted onAzure Cloud(such as Azure App Services and Azure SQL Database).
• Architecture & Quality: Actively participate in architectural discussions, contributing to system scalability, performance improvements, and domain-driven design (DDD) best practices.
• Collaboration: Cooperate closely with cross-functional distributed teams (including full-stack developers, frontend Blazor engineers, QA, DevOps, and Product).

What we offer

Empowering Projects: With 500+ clients spanning diverse industries and domains, we provide an exciting opportunity to contribute to groundbreaking projects that leverage cutting-edge technologies. As a team, we engineer digital products that positively impact people’s lives.

Empowering Growth: We foster a culture of continuous learning and professional development. Our dedication is to provide timely and comprehensive assistance for every consultant through our dedicated Learning & Development team, ensuring their continuous growth and success.

DE&I Matters: At GlobalLogic, we deeply value and embrace diversity. We are dedicated to providing equal opportunities for all individuals, fostering an inclusive and empowering work environment.

Career Development: Our corporate culture places a strong emphasis on career development, offering abundant opportunities for growth. Regular interactions with our teams ensure their engagement, motivation, and recognition. We empower our team members to pursue their career goals with confidence and enthusiasm.

Comprehensive Benefits: In addition to equitable compensation, we provide a comprehensive benefits package that prioritizes the overall well-being of our consultants. We genuinely care about their health and strive to create a positive work environment.

Flexible Opportunities: At GlobalLogic, we prioritize work-life balance by offering flexible opportunities tailored to your lifestyle. Explore relocation and rotation options for diverse cultural and professional experiences in different countries with our company.

About GlobalLogic

GlobalLogic, a Hitachi Group Company, is a trusted digital engineering partner to the world’s largest and most forward-thinking companies. Since 2000, we’ve been at the forefront of the digital revolution – helping create some of the most innovative and widely used digital products and experiences. Today we continue to collaborate with clients in transforming businesses and redefining industries through intelligent products, platforms, and services.