.Net Developer

🏢 Summary: The offer is for a .NET Developer responsible for building and enhancing scalable backend systems and REST APIs for global travel platforms. The role involves contributing to architecture, optimizing performance, and collaborating in an agile environment to deliver reliable, high-quality software. It includes hybrid work, international projects, and professional development opportunities. 🗂️ Requirements: Minimum 3 years of commercial experience with .NET development, Strong knowledge of ASP.NET MVC, Experience developing REST APIs, Experience working in agile software development teams, Good knowledge of MS SQL, Good knowledge of Elasticsearch, Experience with CI/CD tools (Git, TeamCity or similar), Experience writing unit and integration tests, Ability to write clean, maintainable, and well-tested code, Very good English communication skills 📃 Skills: .NET, ASP.NET, MVC, REST, MS SQL, Elasticsearch, Git, TeamCity, CI/CD, UnitTesting, IntegrationTesting, Umbraco, Angular, AWS 🏢 Description: We are looking for a .NET Developer to join our team and help build scalable, high-quality solutions that power our global travel platforms. In this role, you will work on the development and enhancement of backend systems, contribute to architectural decisions, and collaborate with cross-functional teams to deliver reliable and efficient software used by customers worldwide. Your responsibilities Design, develop, and maintain applications using .NET technologies Translate business requirements into scalable and maintainable technical solutions Develop and enhance REST APIs and backend services Maintain, troubleshoot, and improve existing applications Refactor and optimize code to improve performance, scalability, and maintainability Write clean, well-structured, and testable code following best practices Participate in code reviews and contribute to improving development standards Identify and resolve performance bottlenecks and system issues Contribute to application architecture, technical design, and system documentation Collaborate closely with developers, QA engineers, Product Owners, and other stakeholders in an agile environment Our requirements At least 3 years of commercial experience with .NET development Strong knowledge of ASP.NET MVC and REST APIs Experience working within agile software development teams Good knowledge of MS SQL and Elasticsearch Experience with CI/CD tools and practices (Git, TeamCity or similar) Experience writing unit and integration tests Ability to write clean, maintainable, and well-tested code Very good English communication skills Nice to have Experience with Umbraco CMS Experience with Angular Knowledge of AWS services and cloud-based solutions How we work Clean Code principles Design patterns and software engineering best practices Code reviews and knowledge sharing Static code analysis Continuous Integration and Continuous Deployment (CI/CD) Agile and collaborative development environment What we offer Hybrid work model (1–2 days per week in our Katowice office) Opportunity to work on international, large-scale projects Attractive remuneration paid in EUR Flexible working hours Individual development budget Partially or fully funded training and certifications English lessons Mentoring and support from experienced technical leaders Participation in conferences in Poland and abroad A culture focused on learning, collaboration, and knowledge sharing Space to innovate and bring your own ideas to life Support for IT community initiatives

🏢 Summary: The role involves developing and maintaining scalable full-stack web applications using .NET and modern frontend frameworks. You will design robust Web APIs, optimize databases, and implement clean, testable code within CI/CD-driven environments. The position requires active participation in the full software development lifecycle for international projects. 🗂️ Requirements: Minimum 3 years commercial experience with .NET (C#, Web API, Entity Framework), Proficiency in Angular or React, Strong knowledge of JavaScript, HTML, CSS, Experience with SQL Server or PostgreSQL, Understanding of Unit Testing, Experience with Git, Experience with CI/CD pipelines, Knowledge of design patterns, Knowledge of software development best practices, Fluent English (min. B2), Availability for hybrid work mode 📃 Skills: .NET, C#, WebAPI, EntityFramework, Angular, React, JavaScript, HTML, CSS, SQL, SQLServer, PostgreSQL, UnitTesting, Git, CI/CD 🏢 Description: As a member of our development team, you will be responsible for building scalable web applications, designing robust APIs, and creating intuitive user interfaces. We value clean code, analytical thinking, and a proactive approach to technology. Our expectations: Minimum 3 years of commercial experience in .NET (C#, Web API, Entity Framework). Proficiency in Angular or React, along with JavaScript, HTML, CSS, and modern frontend libraries. Strong experience with relational databases such as SQL Server or PostgreSQL. Solid understanding of Unit Testing, Git, and CI/CD pipelines. Practical knowledge of design patterns and software development best practices. A collaborative mindset and the ability to explain complex technical issues clearly. Strong analytical skills and a "get it done" attitude. Fluent English (min. B2) for smooth collaboration with international partners. Open to work in hybrid mode. Main responsibilities: You will design, develop, and maintain scalable full-stack applications using .NET and modern frontend frameworks (Angular/React) for diverse client projects. You will be responsible for writing clean, testable code and implementing unit tests to ensure the highest software performance and reliability. You will work closely with cross-functional teams to architect robust Web APIs and optimize database schemas while following industry best practices and design patterns. You will actively participate in the full software development life cycle, including CI/CD processes and version control management, to ensure seamless project delivery.

🏢 Summary: Development of scalable, cloud-native applications using C#/.NET in a microservices architecture on Microsoft Azure. The role focuses on building high-performance, containerized systems, ensuring quality through CI/CD practices, and optimizing performance in modern cloud environments. Position requires strong engineering expertise and experience in travel-related solutions. 🗂️ Requirements: 5+ years experience with C# and .NET, 3+ years experience developing travel-related solutions, Experience with modern cloud architectures, Expertise in Microsoft Azure, Experience with containerized applications, Experience with SQL and NoSQL databases, Strong knowledge of microservices architecture, Understanding of API design principles, Knowledge of clean architecture and SOLID principles, Experience with CI/CD practices 📃 Skills: C#, .NET, Azure, SQL, NoSQL, Microservices, Containers, APIs, CI/CD, SOLID 🏢 Description: Our Client is a rapidly growing European technology company developing advanced digital solutions used by thousands of customers worldwide. The organization focuses on building scalable platforms and innovative products that support operational efficiency and business growth. Their engineering teams work in modern cloud environments and emphasize quality, user experience, and continuous delivery. The company operates internationally and continuously invests in product development and technology excellence. 📍 Location: Warsaw - once per week in the office 🚀 Your responsibilities Develop clean, scalable code using C# / .NET in microservices architecture and cloud-native environments Test and deploy systems and applications on Microsoft Azure Monitor and optimize system performance , identifying and resolving issues proactively Act as a technical expert for the system and support other internal teams Work in an Agile squad , with strong focus on user experience, quality assurance, and CI/CD practices Contribute to the engineering culture by sharing knowledge and applying best practices Work on projects that directly impact the company’s growth and product development 🎯 Our requirements 5+ years of professional experience in software development using C# / .NET and modern cloud architectures 3+ years of experience developing travel-related solutions Strong understanding of core software engineering principles and API design Proven expertise in building and managing high-performance containerized applications on Microsoft Azure Experience designing and managing SQL and NoSQL databases Deep understanding of microservices architecture, clean code, clean architecture, and SOLID principles Professional English proficiency ⭐ Nice to have Working knowledge of Angular / AngularJS Familiarity with AI tools supporting development workflows Experience working in Agile / Scrum environments Thank you for all applications. We will contact selected candidates. TQLO Sp. z o.o. – Employment Agency (KRAZ 33580)

🏢 Summary: The role involves designing, developing, and maintaining .NET applications and services with a strong focus on code quality and system reliability. The position includes writing automated tests, participating in architectural discussions, and collaborating with QA and DevOps teams. It is suited for an experienced .NET Developer comfortable working with production systems and modern development practices. 🗂️ Requirements: Commercial experience as .NET Developer, Strong knowledge of C#, Strong knowledge of .NET Framework or .NET 6+, Experience with SQL databases, Understanding of software architecture, Knowledge of data modeling, Experience maintaining production systems, English proficiency B2 or higher 📃 Skills: C#, .NET, SQL, REST, Selenium, Gherkin, Jenkins, HTTPS, LDAP, SSH, SFTP, TLS, Architecture, DataModeling, UnitTesting, IntegrationTesting 🏢 Description: Responsibilities: Designing, developing, and maintaining .NET applications and services Write and maintain automated unit and integration tests Participate in code reviews and architectural discussions Collaborate with QA, DevOps, and product teams Requirements: Commercial experience as a .NET Developer Strong knowledge of C#, .NET Framework and/or .NET 6+ Experience working with SQL databases Understanding of software architecture designs and data modeling Experience maintaining production systems Communicative English (B2) Nice to have: Experience creating technical documentation Experience with REST API, Selenium, Gherkin, Jenkins, HTTPS, LDAP, SSH, SFTP, TLS What we offer: Flexible forms of employment and working hours (CoE or B2B) An interesting, challenging job in the dynamically developing Capital Group company; Work on innovative projects using modern technologies; Direct impact on shaping the image of the Capital Group's companies on the market; Possibility to develop competences in a wide range; Attractive salary; Stability of employment and a friendly work atmosphere; Cool benefits, among others integration meetings, internal company competitions, fruit Tuesdays, sweet Thursdays and much more;

🏢 Summary: Hybrid .NET Software Engineer role (3 days onsite in Krakow or Wroclaw) focused on designing, developing, and maintaining scalable and secure applications within the Microsoft ecosystem. The position involves building backend services, APIs, and UI components, integrating with databases and cloud services, and ensuring high performance and architectural compliance. 🗂️ Requirements: 8+ years of experience in .NET development, Strong proficiency in C# and .NET 6/7+, Experience building RESTful APIs, Experience with ASP.NET Core, Experience with SQL Server or PostgreSQL, Experience with Entity Framework Core, Experience with Azure cloud platform, Experience with CI/CD pipelines, Basic knowledge of Docker and Kubernetes, Experience with automated testing frameworks (xUnit, NUnit, Moq) 📃 Skills: C#, .NET, ASP.NET, REST, Swagger, JavaScript, HTML, CSS, Blazor, React, SQL, SQLServer, PostgreSQL, EntityFramework, Azure, Docker, Kubernetes, AzureDevOps, GitHubActions, xUnit, NUnit, Moq 🏢 Description: Experience: 8+ years Work Mode: Hybrid – 3 days per week from Krakow or Wroclaw Position: .NET Software Engineer Responsibilities: As a .NET Software Engineer, you will design, develop, and maintain robust, scalable, and secure applications within the Microsoft .NET ecosystem. Your work will encompass building backend services, APIs, and user interfaces using C#, ASP.NET Core, and related technologies. You will integrate software components with databases, cloud services, and enterprise systems, ensuring high performance, maintainability, and compliance with architectural standards. Required Skills: Programming Languages & Frameworks: C#, .NET 6/7+, ASP.NET Core API Development: RESTful APIs, Swagger/OpenAPI Frontend Technologies: JavaScript, HTML/CSS, Blazor or React Databases & ORM: SQL Server, PostgreSQL, Entity Framework Core CI/CD Pipelines: Azure DevOps, GitHub Actions Cloud Platforms: Azure Containerization & Orchestration: Docker, Kubernetes (basic exposure) Testing Frameworks: xUnit, NUnit, Moq 📩 If you’re interested and meet the qualifications, please apply or send your CV to Veranika Lazarava at veranika.lazarava@dcvtechnologies.co.uk

🏢 Summary: Junior .NET Developer role focused on building and maintaining applications that integrate data into internal systems using C# and .NET technologies. The position involves working on Windows services, web applications, and AWS-based components while ensuring scalability, stability, and code quality. This is a full-time opportunity with remote or hybrid work options and professional development support. 🗂️ Requirements: Basic knowledge of C#, Basic knowledge of .NET technologies, Familiarity with cloud solutions, Familiarity with MS SQL databases, Understanding of design patterns, Understanding of programming best practices, Willingness to write unit and integration tests, Ability to design scalable and stable solutions, Ability to propose technical solutions with advantages and disadvantages comparison, English proficiency at B2 level, Ability to work in a team, Familiarity with Git, Understanding of SDLC methodologies, Familiarity with CI/CD pipelines 📃 Skills: C#, .NET, AWS, SQL, MS SQL, Git, CI/CD, REST, Angular, AngularJS, Snowflake, Jira, Confluence, Jenkins 🏢 Description: We are looking for a Junior .NET Developer to join our technology team focused on integrating data coming into our system. As a team member, you will assist in creating, developing, and maintaining applications using .NET technology, with a focus on C#. The applications we create include Windows services, web applications, and components deployed using native AWS solutions. Requirements: Basic knowledge of C# and .NET technologies. Familiarity with cloud solutions. Familiarity with MS SQL databases. Understanding of basic design patterns and best programming practices. Willingness to learn and write unit and integration tests. Ability to design scalable and stable solutions with guidance. Ability to propose technical solutions with the comparison of advantages/disadvantages under supervision. English proficiency at B2 level. Ability to work in a team, good communication skills, and the ability to share knowledge. Familiarity with Git. Understanding of software development lifecycle (SDLC) methodologies. Familiarity with building CI/CD pipelines. Nice to Have: Experience with AWS Cloud Services. Familiarity with monitoring and logging tools in AWS. Experience with GitHub. Basic knowledge of API design principles (RESTful). Familiarity with agile methodologies and tools such as Jira/Confluence/Jenkins. Experience with front-end technologies (Angular, AngularJS) is a plus. Knowledge or experience with Snowflake is a plus. Responsibilities: Assist in developing and enhancing applications using .NET (C#). Learn and work with cloud solutions. Write and maintain unit and integration tests under guidance. Contribute to designing and implementing solutions with an emphasis on scalability and stability. Propose technical solutions for presented problems with support from team members. Work with MS SQL databases. Collaborate with other team members and share knowledge. Maintain high code quality following best practices and design patterns. Work closely with Project Managers and other staff members to collect requirements, estimate work, and ensure that projects are delivered according to schedule. We offer: Employment Contract/ B2B Remote work or hybrid work (office in Gliwice) Full time position The possibility of professional development Stable working environment - we focus on long-term cooperation English/Spanish lessons Private medical care Luxmed Live Insurance Allianz Mutlisport Birthday leave Voluntary days International projects Position available immediately

🏢 Summary: Junior .NET Developer role focused on building and maintaining data integration applications using C# and .NET. The position involves developing Windows services, web applications, and AWS-based components while following best practices and design patterns. The role includes working with MS SQL databases, cloud solutions, and CI/CD processes in a collaborative environment. 🗂️ Requirements: Basic knowledge of C#, .NET knowledge, Familiarity with cloud solutions, Familiarity with MSSQL, Understanding of design patterns, Knowledge of programming best practices, Willingness to write unit tests, Willingness to write integration tests, Ability to design scalable solutions with guidance, Ability to propose technical solutions under supervision, Familiarity with Git, Understanding of SDLC, Familiarity with CI/CD pipelines 📃 Skills: C#, .NET, AWS, MSSQL, Git, CI/CD, REST, Jenkins, Jira, Confluence, Angular, Snowflake, SDLC 🏢 Description: We are looking for a Junior .NET Developer to join our technology team focused on integrating data coming into our system. As a team member, you will assist in creating, developing, and maintaining applications using .NET technology, with a focus on C#. The applications we create include Windows services, web applications, and components deployed using native AWS solutions. Requirements: Basic knowledge of C# and .NET technologies. Familiarity with cloud solutions. Familiarity with MS SQL databases. Understanding of basic design patterns and best programming practices. Willingness to learn and write unit and integration tests. Ability to design scalable and stable solutions with guidance. Ability to propose technical solutions with the comparison of advantages/disadvantages under supervision. English proficiency at B2 level. Ability to work in a team, good communication skills, and the ability to share knowledge. Familiarity with Git. Understanding of software development lifecycle (SDLC) methodologies. Familiarity with building CI/CD pipelines. Nice to Have: Experience with AWS Cloud Services. Familiarity with monitoring and logging tools in AWS. Experience with GitHub. Basic knowledge of API design principles (RESTful). Familiarity with agile methodologies and tools such as Jira/Confluence/Jenkins. Experience with front-end technologies (Angular, AngularJS) is a plus. Knowledge or experience with Snowflake is a plus. Responsibilities: Assist in developing and enhancing applications using .NET (C#). Learn and work with cloud solutions. Write and maintain unit and integration tests under guidance. Contribute to designing and implementing solutions with an emphasis on scalability and stability. Propose technical solutions for presented problems with support from team members. Work with MS SQL databases. Collaborate with other team members and share knowledge. Maintain high code quality following best practices and design patterns. Work closely with Project Managers and other staff members to collect requirements, estimate work, and ensure that projects are delivered according to schedule. We offer: Employment Contract/ B2B Remote work or hybrid work (office in Gliwice) Full time position The possibility of professional development Stable working environment - we focus on long-term cooperation English/Spanish lessons Private medical care Luxmed Live Insurance Allianz Mutlisport Birthday leave Voluntary days International projects Position available immediately

🏢 Summary: The role involves developing and maintaining an enterprise-grade web application within the .NET ecosystem, with a strong focus on backend development and system architecture. You will design and enhance REST APIs, implement business logic, and integrate modern .NET Core solutions with legacy .NET Framework components. The position emphasizes scalable architecture, database optimization, and high code quality through comprehensive testing. 🗂️ Requirements: 5+ years of experience in .NET development, Strong expertise in .NET Core and backend systems, Experience designing and building REST APIs, Hands-on experience with Entity Framework Core, Experience with relational databases, especially SQL Server, Understanding of software architecture and design patterns, Experience working with .NET Framework 4.8, Experience with unit, integration, and end-to-end testing, Ability to integrate and maintain backend services, Basic knowledge of React or experience collaborating with frontend teams 📃 Skills: .NET, C#, ASP.NET, REST, Swagger, OpenAPI, EntityFramework, SQLServer, SQLite, React, xUnit, NUnit, AI, Copilot, ChatGPT 🏢 Description: Additional information The project focuses on the development and maintenance of an enterprise-grade web application built on the .NET ecosystem, with a strong emphasis on backend and system architecture. The main responsibility is to design and enhance REST APIs and business logic , including integration with existing components based on .NET Framework 4.8. The system relies on relational databases (SQL Server) and ORM solutions such as Entity Framework Core, with a strong focus on quality through multi-level testing. The role also involves collaboration with the frontend layer (React), although it is not the primary focus. The environment requires a high level of autonomy, technical decision-making, and a proactive approach to improving the existing architecture. You’re ideal for this role if you: Have 5+ years of experience in .NET development, with strong expertise in .NET Core and backend systems Are confident in designing and building REST APIs, including architecture and best practices (e.g., Swagger/OpenAPI) Have hands-on experience with Entity Framework Core and relational databases such as SQL Server Understand software architecture, design patterns, and how to build scalable, maintainable systems Are familiar with legacy environments, including .NET Framework 4.8, and can work across modern and existing solutions Have solid experience with testing (unit, integration, end-to-end) and care about code quality Have basic knowledge of React or are comfortable working closely with frontend teams Use AI tools (e.g., Copilot, ChatGPT) to improve development efficiency Take ownership of your work and proactively identify improvements rather than waiting for tasks Your day-to-day responsibilities include:​ Designing, developing, and maintaining backend services using .NET Core Building and enhancing REST APIs, ensuring performance, scalability, and clear documentation (Swagger/OpenAPI) Integrating new features with existing systems based on .NET Framework 4.8 Implementing business logic and ensuring consistency across application layers Working with databases (SQL Server, SQLite) and optimizing data access with Entity Framework Core Writing and maintaining tests (unit, integration, end-to-end) to ensure high code quality Collaborating with frontend developers (React) to ensure smooth end-to-end functionality Participating in architectural discussions and contributing to technical decisions Identifying areas for improvement and proactively proposing enhancements Using AI tools to streamline development and increase productivity

🏢 Summary: Enterprise-level .NET developer role focused on building and maintaining scalable web applications aligned with client business requirements and Microsoft standards. The position involves C# development, collaboration with stakeholders, and support activities, with hybrid work at Tagus Park. Candidates may also gain certification in Microsoft Dynamics CRM. 🗂️ Requirements: Bachelor's or Master's degree, 5+ years experience with .NET, Experience with web technologies, Strong knowledge of C#, Strong knowledge of WCF, Strong knowledge of SQL, Strong knowledge of HTML5, Strong knowledge of JavaScript, English proficiency C1 📃 Skills: .NET, C#, WCF, SQL, HTML5, JavaScript, .NETCore, DynamicsCRM, PowerPlatform, AzureFunctions, LogicApps 🏢 Description: The main function of this role is to develop enterprise-level applications using .NET technology, focusing on building solutions that meet the business requirements of clients while adhering to Microsoft's standards. Responsibilities: Develop and maintain enterprise applications using .NET and web technologies. Collaborate with team members to gather and analyze business requirements from clients. Write clean, scalable, and efficient C# code, leveraging WCF, SQL, HTML5, and JavaScript. Work independently while acting as a reliable team player. Participate in logical exercises and interviews during the hiring process. Engage in product support and demonstrate applications to customers when required. Must Haves: Master's or Bachelor's degree in a relevant field. A minimum of 5 years of experience with .NET and web technologies. Strong knowledge of C#, WCF, SQL, HTML5, and JavaScript. Fluency in English, minimum C1 level. Nice to Have: Experience with .NET Core and/or Microsoft Dynamics CRM. 3 or more years of experience specifically in C# development. Experience with the Microsoft Power Platform, especially Customer Engagement. Familiarity with Azure Functions and Azure Logic Apps. Other Details: Location: Tagus Park (1x per week in office). Certification offered in Microsoft Dynamics CRM for candidates. Two-phase interview process: logical exercise followed by an interview with the technical director/partner.

🏢 Summary: Opportunity for a junior Java developer to work in an agile, international environment delivering high-quality solutions for clients across various industries. The role involves designing, developing, testing, and maintaining reliable code while collaborating with global teams and using modern development practices. Projects include diverse technologies, with a strong Microsoft-based ecosystem and CI/CD practices. 🗂️ Requirements: Bachelor’s or Master’s Degree in Computer Science or related field, 1–3 years of commercial Java development experience, Strong knowledge of object-oriented programming, Understanding of data modelling, Knowledge of design patterns and architectural patterns, Experience with modern system development practices, Ability to perform unit and manual testing, Good English communication skills 📃 Skills: Java, OOP, DataModeling, DesignPatterns, Architecture, UnitTesting, .NET, C#, EntityFramework, MVC, AzureDevOps, Docker, SonarQube, Git, CI/CD 🏢 Description: Are you ready to take on a job in a leading IT services company where you will work alongside professionals from around the world? Take your career to the next level and develop your skills with us. Together, we’ll create strong, sustainable societies, successful companies, and better lives for us all. About the job An agile, international environment Clients from across different domains and industries Find bottlenecks, bugs and devise solutions Unit and manual testing, delivering high-quality solutions Design, develop, and maintain reliable code using the best practices Produce high-quality deliverables Accommodate business and technical requirements Work with different languages and technologies (they vary from project to project), a large part of our tech stack is Microsoft (.NET 6, C#, Entity Framework, MVC) with Azure DevOps, Docker, SonarQube, and Git for CI/CD)). About you: Graduate (Bachelor’s or Master’s Degree) of Computer Science or other related numerate discipline Have at least 1-3 years of commercial Java development experience after graduation Good English skills, both spoken and written Strong understanding of object-oriented programming and data modelling Familiar with various design, architectural patterns and modern system development Open towards and able to quickly learn new technologies Our perks and benefits: Access to the Benefit Platform (Medical Insurance, Life Insurance, Multisport card etc.) Scandinavian work environment Drinks and snacks available at the office Professional IT skills development support Internal training at the Netcompany Academy International cooperation with colleagues from Denmark, Norway, the UK and Vietnam Attractive offices with a great location in Warsaw: Puławska 180 (Metro Wilanowska) and Wronia 10 (Metro Rondo Daszyńskiego) English and Danish lessons at the office In Netcompany we believe that a diverse and inclusive workplace is central to our success, which is why all qualified candidates are invited to apply regardless of gender, sexual orientation, disability, age, religion and belief, ethnic background, nationality, gender identity or culture. We are committed to live out a culture where we provide equal opportunities for all.