Location: Cracow (hybrid: 2 days/week from office)
Job Overview
This role will work as a Senior .NET Developer within an Agile Software Development team in our payment business ClearAccept, contributing to the design, development, and delivery of new features for a cloud-based fintech payments platform. The role will involve working with modern technologies including .NET Core, C#, REST APIs, and AWS cloud services, as part of a microservice-based architecture. The developer will be expected to actively participate in all stages of the development lifecycle, collaborate with team members, and follow established development practices such as Git Flow, CI/CD, and Infrastructure as Code. The role will also support ongoing efforts to improve code quality, system performance, and team processes.
Your responsibilities will include, but not be limited to:
Collaborating with Solution Architects, Product Owners, Developers, DevOps and QA Automation Engineers to contribute to the development and delivery of new product features using the following technologies:
Analysing business requirements, internal designs and non-functional requirements and estimate user stories collaboratively with the team.
Advocating of development practices including TDD/BDD & DDD.
Following industry best practices, coding guidelines and secure development practices, and ensure other members of the team do likewise.
Understanding and maintaining awareness of technology, software design and development methodology trends and contribute to strategy through the suggestions of suitable solutions to meet business / product needs.
Following lean/agile principles and help to continually improve processes and practices.
Required skills and experience:
Professional level (5+ years' experience) as a Developer within a modern software environment
C# with .NET (latest LTS) for building robust, scalable applications
Strong Web API experience and Minimal APIs for designing performant, maintainable service endpoints
MassTransit for distributed messaging via RabbitMQ or Azure Service Bus
MediatR to enforce clean separation of concerns using in-process messaging (CQRS)
Domain-Driven Design (DDD) to shape code that mirrors complex business logic
Event-Driven Architecture for scalable, loosely-coupled systems
Asynchronous programming for responsiveness and throughput, multi-threaded & parallel programming
Mentoring and coaching of junior and mid-level developers to grow team capability
Stakeholder management to align technical delivery with business objectives
Technical leadership in architectural decisions, code quality, and system design
Cross-team collaboration to drive consistency and integration across platforms
Continuous improvement mindset, leading initiatives in performance, reliability, and developer experience
Code and design review leadership to maintain high-quality standards and knowledge sharing
Strong experience in SQL & NoSQL databases
Experience in improving, refactoring and rewriting code
Deep understanding of design patterns
Experience using CI/CD build and deployment pipelines.
Experience of secure coding practices, OWASP Top 10, etc.
Desired skills and experience:
Previous PCI DSS experience would be advantageous
Payments Industry experience advantageous
Experience with CQRS would be advantageous.
Required behaviors and attributes:
Excellent knowledge of software development methodologies and techniques.
Strong analytical and problem-solving skills.
Attention to detail.
Good communication skills, both verbal and written.
Proactive in identifying areas for improvement in the development process.
Collaborative approach to work with developers, testers, and other stakeholders.
Advocate of development practices including TDD/BDD & DDD.
We offer:
Co-financing of sport activities (Multisport)
Additional private medical care
Pizza Tuesday
Relaxation zone –football table
Integration meetings
No dress code
and much more!
Are you ready to take your next step or know someone who is? Apply to ClearCourse today!
