Senior .NET developer
Tech Stack:
.NET 8/10 and C#
Domain-Driven Design (DDD)
Microservices Architecture
CQRS
SQL
Azure
ORM NHibernate/EF core
AI Tooling
Required Qualifications:
Very strong .NET experience (modern backend development)
Solid knowledge of DDD, CQRS and clean architecture principles
Experience with REST APIs and API-first development Integration experience (multiple systems, protocols)
Strong SQL skills, including query optimization and data modeling
Experience with cloud environments (Azure preferred)
Experience working with distributed/microservices architectures
Good understanding of automated testing (unit, integration)
Strong communication skills and ability to clearly articulate technical ideas
Very good English (spoken and written)
Team-oriented mindset combined with relative autonomy in delivering features and tasks
Experience using GitHub Copilot or other AI-assisted development tools
Nice to Have:
Experience with messaging systems (e.g., RabbitMQ, Kafka, Azure Service Bus)
Experience with CI/CD pipelines and containerization (Docker, Kubernetes)
Background in finance / accounting / ERP domains
Project Description:
We are seeking a Senior .NET Backend Developer to contribute to the development of our integrated, mobile-first HR and payroll platform. We aim to deliver high-quality, scalable solutions within an Agile framework. As a backend developer, you will work closely with an experienced engineering team, contributing to the design and delivery of robust services and APIs that power the platform. You will actively engage in development initiatives, collaborate with stakeholders, and support the team with clear communication and technical insight. The role requires a balance of autonomy, ownership, and strong teamwork.
Main responsibilities:
Designing, developing and maintaining backend services and APIs in .NET
Collaborating with a skilled cross-functional Agile team
Delivering robust, secure, and scalable software aligned with business and technical requirements
Building and maintaining integrations with internal and external systems
Troubleshooting and supporting codebases, including components created by other engineers
Providing technical guidance and contributing to solution design and architecture discussions
Documenting decisions, progress, and architectural considerations in line with project processes
Preparing accurate estimates and taking ownership of assigned deliverables
Actively engaging in development initiatives and contributing to continuous improvement
Staying up to date with modern engineering trends and emerging technologies
Using AI tools effectively to enhance productivity and code quality
- Department
- Software Delivery
- Role
- Software Engineer
- Location
- Poland (PL)
- Net salary
- PLN130 - PLN150/hour
- Skills
- .NET
- Experience
- Senior
- Area
- ERP/CRM, Finance
About Spyrosoft
Spyrosoft is an authentic, cutting-edge software engineering company, established in 2016. In 2021 and 2022, we were among the fastest growing technology companies in Europe, according to the Financial Times. We were founded by a group of tech experts with established backgrounds in software engineering, who created an ‘engineer-to-engineer’ workplace, powered by enthusiasm, fairness and authentic relationships. Having a unique offering, which bridge the gap between technology and business, we specialise in technology solutions for industry 4.0, automotive, geospatial, healthcare & life sciences, employee experience & education and financial services industries.