Senior C# or ASP.NET Developer | Starszy Programista C# lub ASP.NET

Join Veeam, the leader in data resilience and AI trust solutions, dedicated to safeguarding and optimizing organizational data. With a profound commitment to ensuring data security and resilience, we empower businesses globally to navigate the complexities of AI-driven environments. Our headquarters in Seattle, complemented by offices across over 30 countries, supports a diverse clientele of more than 550,000 customers. Together, we strive to foster growth, learning, and impactful contributions to some of the world’s most recognized brands.About the RoleAs a C# Developer, you will be pivotal in designing, developing, and maintaining our internal automated testing framework and associated tools, while also contributing to the advancement of Veeam’s product suite.What You’ll DoDesign and develop a robust internal automated testing framework for Veeam products.Maintain and enhance internal tools and infrastructure.Engage actively in product development initiatives.Utilize AI-assisted tools to streamline engineering processes and enhance code quality.Collaborate with team members to analyze and discuss software requirements.Technologies You’ll Work WithC#, .NET 10, Windows/Linux, SQL, NUnit, xUnit, Multithreading, among others.What You’ll BringA strong interest in software testing methodologies.Proficient understanding of the C# programming language and the .NET framework.Solid grasp of software design and development principles.Fluency in English to effectively communicate within an international team.

Veeam Software seeks a Senior C# Developer based in Warsaw, Poland. This position centers on enhancing data management and cloud backup products. Collaboration and delivering clear results for clients are core values for the team. Key responsibilities Design and implement features for data management and cloud backup solutions using C# Collaborate with other developers to expand and strengthen product functionality Share ideas and participate in code reviews and team discussions Requirements Extensive hands-on experience with C# development Comfort working as part of a collaborative team Genuine interest in data management and cloud technologies

About Us At Hitachi Digital Services, we are a pioneering force in the global digital solutions landscape, committed to unlocking the immense potential of our world. Our people-centric approach empowers us to create meaningful change daily—whether it’s shaping future-ready urban spaces, conserving vital natural resources, safeguarding rainforests, or enhancing lives. We believe in the fusion of innovation, technology, and expertise to propel our clients from today’s challenges to tomorrow’s opportunities through the power of acceleration. We value diverse perspectives, experiences, and passions, and do not expect you to meet every requirement. Your unique journey can be an asset to us as we strive for greatness together. The Role Develop and implement new features for .NET applications, ensuring comprehensive documentation for the transfer of master data from various engineering systems to SAP. Provide technical support to users, diagnosing problems and recommending solutions, including enhancements on the SAP side. Oversee and maintain automated software tests to ensure product reliability. Collaborate with beta testers and developers of related software to refine solutions. Enhance existing processes and tools to boost product efficiency and effectiveness. What You’ll Bring In-depth knowledge of the .NET platform and proficiency in C# programming language. Strong familiarity with XML and Excel formats. Expertise in design patterns, particularly MVVM and SOLID principles. Experience with Visual Studio Enterprise, including unit testing and Git. Valuable insights into SAP data structures, function modules, and GUI for master data management. Strong communication skills and a willingness to engage with business stakeholders for requirement analysis and support.

We are seeking a highly skilled and motivated Senior Full Stack Developer proficient in Python 3 and C++. In this role, you will work closely with our engineering and development teams to design, implement, and maintain robust software solutions that meet our clients' needs.Your expertise will help in driving innovation and developing new features while ensuring the performance, quality, and responsiveness of applications.

Join our dynamic team at dev2 as a Senior Specialist in Auditing & Frameworks. In this role, you will leverage your expertise to enhance our auditing processes and frameworks, ensuring compliance and efficient operations.As a key member of our team, you will collaborate with cross-functional departments to identify areas for improvement and implement best practices. Your analytical skills will be pivotal in conducting audits, analyzing data, and providing actionable insights that drive strategic decisions.

Key Responsibilities• Develop robust software security and data protection solutions of the highest quality.• Conduct thorough research and recommend optimal methods to fulfill business needs.• Analyze existing architecture and legacy code to identify areas for improvement and continuous evolution of the product.• Improve software delivery and quality throughout all stages of the software development lifecycle.• Address and resolve any issues that may arise during the development process.• Collaborate with Support engineers to diagnose and fix reported software issues.• Work efficiently with team members and technical leads with minimal supervision.Essential Qualifications• Minimum of 5 years of experience with C++11 or newer.• Proven experience in client-server application development.• Strong proficiency with Git version control.• Understanding of foundational design principles for scalable applications.• Ability to perform comprehensive unit testing of software components for integration into larger systems.• Experience in independently and proactively leading features through the full development cycle while collaborating with various teams.• Familiarity with design patterns.• Highly organized with exceptional attention to detail.• Eagerness to learn and contribute innovative ideas.• Proficient in spoken and written English.Desirable Qualifications• Knowledge of best practices in cybersecurity.• Experience with Mac systems and Objective-C.• Background in Windows system development (using WinApi), low-level software development, driver development, Boost, and ClickHouse database.• Familiarity with Golang or Rust programming languages.• Understanding of AWS services.

Join our dynamic Credit eTrading Technology team as a Senior C# Developer, where you will play a pivotal role in the enhancement and maintenance of our CDS pricing and marking application. This critical application supports 80 traders across three regions, enabling them to effectively manage their CDS positions with various tools for live maintenance and support.Key Responsibilities:Develop, test, and implement new functionalities for the CDS pricing and marking application.Collaborate within an agile team environment, ensuring timely delivery of projects.Engage in bug fixing and provide live support to ensure optimal application performance.Work closely with business analysts to identify and address any operational gaps.Partner with the QA team to uphold the highest standards of quality in our deliverables.

Veeam Software seeks an experienced C# Developer to join its Warsaw team. This position is designed for professionals who take pride in building dependable, thoughtfully designed software. Role overview The team emphasizes collaboration and values technical excellence. Developers here work together to achieve high-quality outcomes and maintain a supportive environment. What you will do Contribute to the design and development of software using C# Focus on delivering reliable and maintainable solutions Work closely with colleagues to achieve shared goals Requirements Professional experience with C# development Commitment to quality and attention to detail Interest in collaborative problem-solving

Veeam Software seeks a Senior C# Developer in Warsaw, Poland, to work on Microsoft 365 solutions. This role involves building and maintaining software that enhances Veeam’s product offerings. Key responsibilities Design and develop software applications in C# that integrate with Microsoft 365. Maintain and improve existing code to support new features and ongoing enhancements. Collaborate with engineering, product, and QA teams to deliver updates and improvements. Contribute to solutions that address customer needs and refine the user experience. Location This position is based in Warsaw, Poland.

Join our dynamic team at CodeTwo as a C# / ASP.NET Developer! You will have the opportunity to work in beautiful locations such as Wrocław or Jelenia Góra, or even remotely. In this role, you will:Develop new applications and enhance existing software in the CodeTwo ecosystem using Visual Studio, focusing on cloud-based front-end and back-end technologies with ASP.NET and C#.NET.Collaborate within small teams on projects following SCRUM/Agile methodologies, utilizing tools like Azure DevOps.Participate in all software development phases, from concept and analysis to design and implementation.Utilize ASP.NET related technologies such as Blazor, TypeScript, React, Angular, JavaScript, CSS, Less, and C#.NET technologies like WPF, WCF, and WIX.Engage in Azure programming (e.g., Azure Functions, Cosmos DB, Azure SQL, Web Apps, Cloud Services, Mesh, Kubernetes).Write automated tests including unit, integration, and coded UI tests (e.g., Selenium).Create and maintain technical documentation for the software developed.

Join our innovative team at inetum2 as a Senior C++ Software Engineer, where you will play a pivotal role in developing cutting-edge software solutions. This is an exciting opportunity for skilled engineers to work in a dynamic environment that fosters creativity and collaboration.

At Veeam, we are committed to being the Data and AI Trust Company, empowering organizations to secure and comprehend their data and AI assets. As the leading provider in data resilience and security posture management, we are uniquely positioned to address the convergence of identity, data security, and AI risk. With our headquarters in Seattle and a presence in over 30 countries, Veeam proudly protects more than 550,000 customers globally, ensuring their businesses operate smoothly. Join us on our journey as we move forward together, fostering growth, learning, and making a significant impact for some of the world’s most prominent brands.About the RoleWe are seeking a motivated Junior C# Developer to become a key part of our team focused on Veeam Backup and Replication, along with its extensions.What You’ll DoDevelop and design REST APIs for Veeam Backup & Replication.Create new products while providing support for existing features.Engage in individual and team development of components and overall product architecture.Technologies We Use:C#, .Net 10, Windows/Linux, MS SQL, PostgreSQL, Multithreading.

The AES IT team at Alpha Technologies is actively seeking a skilled C# Developer to join our dynamic team. This role is pivotal in server-side application development and the delivery of innovative solutions. The successful candidate will primarily focus on enhancing our algorithmic trading platform, which includes both foundational frameworks and auxiliary systems and tools.As a C# Developer, you will:Engage in C#/.NET application development within a Windows Server environment.Contribute to the development of strategy simulation and back-testing frameworks.Create advanced user interfaces for order entry.Implement automated unit tests and quality assurance regression test suites.Manage configuration and release processes.Analyze and resolve technical problems.Provide third-line support for developed applications.In addition to your primary responsibilities, you will:Deliver software following the complete software development life cycle.Collaborate closely with the AES IT London product development team and front-office personnel.Work in tandem with other IT teams to leverage existing technologies as needed.Develop a comprehensive understanding of key system dependencies.Support and maintain the applications you develop.

Veeam is recognized as the Data and AI Trust Company, dedicated to empowering organizations to fully comprehend, secure, and maintain the resilience of their data and AI systems. As a leader in data resilience and security posture management, Veeam is designed for the convergence of identity, data, security, and AI risk management. With its headquarters in Seattle and operations in over 30 countries, Veeam safeguards the data of more than 550,000 customers globally, who rely on Veeam to ensure their business continuity. Join us in our mission to advance fearlessly, fostering growth, learning, and making a significant impact for some of the world's largest brands.About the RoleWe are seeking a skilled C# Developer to join our team, where you will play a pivotal role in enhancing the backend of Veeam Backup for Hypervisors, improving data protection and fostering business resilience.What You'll DoDesign and implement business logic for virtualization products (RHV, Nutanix, Proxmox VE, etc.)Develop new functionalities and enhance existing featuresImplement significant functionalities across various components of the productContribute to the individual development of components and the overall architecture of the product

Join our dynamic team at Alarm.com as a Senior Software Engineer specializing in .NET and C#. In this role, you will leverage your expertise to design, develop, and maintain high-quality software solutions that enhance our cutting-edge security and automation platforms. You will collaborate with cross-functional teams to deliver innovative features that meet our client's needs while ensuring optimal performance and scalability.

Join Veeam, a pioneering company at the forefront of data and AI trust, dedicated to ensuring organizations understand, secure, and strengthen their data resilience. As an industry leader in data security and management, Veeam is uniquely positioned to enhance the convergence of identity, data, security, and AI risk. With our headquarters in Seattle and a presence in over 30 countries, we proudly safeguard the operations of more than 550,000 customers globally. Be part of our fearless journey as we grow, learn, and make significant contributions to some of the world’s leading brands.About the RoleWe are on the lookout for a C++ Developer to join our dynamic team, focusing on the development of advanced NAS backup functionalities for Veeam Backup & Replication.What You’ll DoDesign and implement efficient data processing algorithms within a multithreaded framework.Develop innovative data storage formats and integrate cloud services.Implement and optimize network protocols and APIs for seamless component interaction.Enhance and finalize existing functionalities of the Veeam Backup & Replication product.Technologies You'll Work WithUtilize technologies such as C++ 17, C#, Windows/Linux, STL, Boost, and Multithreading.What You’ll BringA minimum of 3 years of experience in commercial software development.Strong expertise in C++ and the Standard Template Library (STL).Proficiency in developing multithreaded applications.Solid understanding of algorithms and data storage structures.Fluency in English for effective collaboration in international teams.Bonus SkillsFamiliarity with system APIs (WinAPI or POSIX).Experience with Linux platform development or eagerness to learn.Knowledge of network programming.Experience using AI-powered tools.Understanding of modern development practices.

Tietoevry seeks a Senior Software Engineer skilled in C programming to join the Tieto Tech Consulting team in Szczecin. This role centers on developing software for the telecommunications sector, contributing to projects that influence how people connect and communicate. Key responsibilities Design, develop, and maintain software solutions in C for telecom applications Follow established software engineering practices to ensure code reliability and efficiency Collaborate with team members to design, implement, and test new features Support projects aimed at enhancing client service delivery in telecommunications Requirements Extensive experience with C programming Background in software engineering, preferably within the telecommunications industry Strong teamwork and communication skills Dedication to delivering high-quality work that meets evolving communication needs

Join our innovative team at inetum2 as a JVM Software Engineer / C Developer. In this role, you will leverage your expertise in Java Virtual Machine (JVM) and C programming to design, develop, and maintain high-quality software solutions.We are looking for someone passionate about technology, who thrives in a collaborative environment and is eager to tackle complex challenges. You will work closely with cross-functional teams to deliver robust applications that meet our clients' needs.

Sopra Steria is looking for a Senior Software Engineer in Katowice with strong C++ and Qt skills. This position centers on designing and building applications that meet high standards for performance and usability. Role overview Work closely with a team of engineers to create software solutions using C++ and Qt. The focus is on delivering reliable, well-crafted applications that provide a solid user experience. What you will do Design and implement applications with C++ and Qt Collaborate with other engineers throughout the development process Contribute to projects that require attention to performance and user interface quality Requirements Proven experience with C++ and Qt Ability to work effectively in a collaborative team environment