Senior Fullstack Engineer

🏢 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: 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: Full-stack C#/.NET engineer role focused on building, testing, deploying and maintaining backend microservices and frontend applications using React or Angular. The position involves working with AWS and Terraform, maintaining production systems, and collaborating in Agile teams to deliver new features. Strong emphasis on software engineering principles and modern cloud-based architectures. 🗂️ Requirements: 3+ years commercial experience in C# development, .NET Core and .NET Framework experience, Frontend development with React or Angular and TypeScript, Experience with REST APIs, Knowledge of MS SQL, PostgreSQL or DynamoDB, Understanding of OOP, SOLID and Clean Code principles, Experience with microservices architecture, AWS and Terraform experience, Knowledge of testing, data structures and algorithms, Computer Science degree, Experience with Agile (SCRUM or Kanban), AI tooling usage 📃 Skills: C#, .NET, .NETCore, .NETFramework, TypeScript, JavaScript, Node.js, React, Angular, REST, AWS, Terraform, MSSQL, PostgreSQL, DynamoDB, Microservices, Docker, Kubernetes, Jenkins, CircleCI, GitlabCI, Datadog, CICD 🏢 Description: About the role You will need to be proficient in backend and frontend development with a thorough understanding of the technologies involved. Strong backend and frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: C#, .NET Core, .NET Framework, Typescript, JavaScript, Node.js, React, REST APIs, React, Angular, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a backend system written in C# and a frontend system written in React or Angular & TypeScript Deploying and maintaining microservices in AWS using Terraform Maintaining system on production used by consumers from several European countries Debugging issues Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Required Qualifications: 3+ years of production software development experience in C# engineer role Strong understanding of software engineering principles, testing, data structures and algorithms Hands-on experience in .NET Core and .NET Framework technologies Good knowledge of DBMS like MS SQL / PostgreSQL / DynamoDB Know-how of REST APIs Understanding of OO design patterns, SOLID principles and Clean Code Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Some experience or interest in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc.

🏢 Summary: Full-stack developer role focused on designing, developing, and maintaining web applications using Angular and .NET within an NX monorepo architecture. The position involves building RESTful APIs and microservices, creating responsive front-end interfaces, and ensuring high code quality through testing and CI/CD practices. The role emphasizes modern architectural principles, performance optimization, and secure application development. 🗂️ Requirements: Minimum 5 years of full-stack development experience with Angular and .NET, Strong proficiency in C# and .NET Core/Framework, Experience with Entity Framework and LINQ, Solid experience with Angular (v12+) and TypeScript, Hands-on experience with RxJS, Hands-on experience with NX monorepo architecture, Experience writing unit and integration tests with Jest, Experience with DevExtreme component library, Proficiency with Visual Studio, Experience with Git and Azure DevOps Services, Experience with SQL Server and query optimization, Knowledge of REST API design and HTTP standards, Understanding of software design patterns and SOLID principles, Bachelor’s degree in Computer Science, Engineering, or related field or equivalent experience 📃 Skills: Angular, TypeScript, RxJS, NgRx, .NET, C#, EntityFramework, LINQ, SQLServer, PostgreSQL, Jest, Git, AzureDevOps, VisualStudio, DevExtreme, NX, REST, HTTP 🏢 Description: The primary objective of this role is to design, develop, and maintain full-stack web applications using Angular and .NET technologies while adhering to modern architectural best practices. Main Responsibilities: Design, develop, and maintain full-stack web applications using Angular and .NET in an NX monorepo architecture. Develop RESTful APIs and microservices using .NET Core/Framework, following Clean Architecture principles. Build responsive, user-friendly interfaces with Angular, incorporating modern patterns like RxJS and NgRx. Work with relational databases like SQL Server and PostgreSQL, designing efficient data models. Write comprehensive unit and integration tests using Jest for maintaining high code quality. Manage version control with Git and oversee CI/CD pipelines in Azure DevOps Services. Participate in code reviews to improve code quality and team practices. Collaborate with product managers, UX designers, and other developers to deliver solutions on time. Contribute to optimizing application performance and ensuring security best practices. Key Requirements: Minimum 5 years of experience in full-stack development with Angular and .NET. Strong proficiency in C#, .NET Core/Framework, Entity Framework, and LINQ. Solid experience with Angular (v12+), TypeScript, and RxJS. Hands-on experience with NX monorepo structure. Proficiency with Jest for writing unit and integration tests. Experience with the DevExtreme component library. Proficiency with Visual Studio for .NET development. Hands-on experience with Git and Azure DevOps Services. Experience with SQL Server and optimized queries. Knowledge of REST API design and HTTP standards. Understanding of software design patterns and SOLID principles. Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience). Nice to Have: Experience in agile methodologies. Familiarity with cloud services like Azure or AWS. Exposure to frontend testing frameworks like Jasmine.

🏢 Summary: Full-stack software engineering role focused on building, deploying, and maintaining backend systems in C#/.NET and frontend applications in React or Angular. The position involves designing system architecture, developing microservices in AWS, and working within Agile teams to deliver scalable production solutions. Strong emphasis on cloud infrastructure, CI/CD, and clean architectural practices. 🗂️ Requirements: 5+ years of production experience in C# development, Hands-on experience with .NET Core and .NET Framework, Experience with React or Angular, Experience designing and consuming REST APIs, Experience with AWS and Terraform or CloudFormation, Experience with CI/CD processes, Knowledge of MS SQL, PostgreSQL, or DynamoDB, Understanding of OO design patterns and SOLID principles, Computer Science degree, Experience working in Agile (SCRUM or Kanban), Proficiency in English 📃 Skills: C#, .NET, TypeScript, JavaScript, Node.js, React, Angular, AWS, Terraform, CloudFormation, REST, SQL, PostgreSQL, DynamoDB, CI/CD, SCRUM, Kanban 🏢 Description: About the role You will need to be proficient in backend and frontend development with a thorough understanding of the technologies involved. Strong backend and frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: C#, .NET Core, .NET Framework, Typescript, JavaScript, Node.js, REST APIs, React, Angular, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a backend system written in C# and a frontend system written in React or Angular & TypeScript Design software architecture between backend, frontend and mobile apps Deploying and maintaining microservices in AWS using Terraform Maintaining system on production used by consumers from several European countries Debugging issues Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Recruiting and mentoring new team members Required qualifications: 5+ years of production software development experience in C# engineer role Exposure and experience in frontend development in React or Angular frameworks Solid hands-on experience in .NET Core and .NET Framework technologies Experience in working with AWS and Terraform / CloudFormation Strong knowledge of DBMS like MS SQL / PostgreSQL / DynamoDB Expertise of REST APIs Strong hands-on experience of CI&CD processes Proficiency in OO design patterns, SOLID principles, Clean Code and solving architectural problems Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Working experience with one of the object-oriented and/or functional languages such as Java, Elixir, C++, Golang, Erlang, Python, Kotlin

🏢 Summary: Full-stack C#/.NET engineer role focused on building, deploying, and maintaining backend microservices and modern frontend applications in React or Angular. The position involves designing system architecture, developing REST APIs, and managing cloud infrastructure on AWS using Terraform. You will work on production systems used across multiple European countries within an Agile environment. 🗂️ Requirements: 5+ years production experience as C# engineer, Strong frontend experience with React or Angular, Hands-on experience with .NET Core and .NET Framework, Experience with AWS and Terraform or CloudFormation, Experience with MS SQL, PostgreSQL, or DynamoDB, Expertise in REST APIs, Strong experience with CI/CD processes, Knowledge of OOP, SOLID principles, Clean Code, Experience in software architecture design, Computer Science degree, Experience with AI tooling, Experience working in Agile (SCRUM or Kanban) 📃 Skills: C#, .NET, .NETCore, TypeScript, JavaScript, Node.js, REST, React, Angular, AWS, Terraform, CloudFormation, MSSQL, PostgreSQL, DynamoDB, CICD, OOP, SOLID, CleanCode, Microservices, SCRUM, Kanban 🏢 Description: About the role You will need to be proficient in backend and frontend development with a thorough understanding of the technologies involved. Strong backend and frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: C#, .NET Core, .NET Framework, Typescript, JavaScript, Node.js, REST APIs, React, Angular, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a backend system written in C# and a frontend system written in React or Angular & TypeScript Design software architecture between backend, frontend and mobile apps Deploying and maintaining microservices in AWS using Terraform Maintaining system on production used by consumers from several European countries Debugging issues Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Recruiting and mentoring new team members Required qualifications: 5+ years of production software development experience in C# engineer role Exposure and experience in frontend development in React or Angular frameworks Solid hands-on experience in .NET Core and .NET Framework technologies Experience in working with AWS and Terraform / CloudFormation Strong knowledge of DBMS like MS SQL / PostgreSQL / DynamoDB Expertise of REST APIs Strong hands-on experience of CI&CD processes Proficiency in OO design patterns, SOLID principles, Clean Code and solving architectural problems Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Working experience with one of the object-oriented and/or functional languages such as Java, Elixir, C++, Golang, Erlang, Python, Kotlin.

🏢 Summary: The offer is for a Backend .NET Developer responsible for building and maintaining scalable backend solutions within a DevOps-driven environment. The role involves full software development lifecycle participation, cloud integration, and performance optimization. The position requires collaboration in Agile teams and ensuring high code quality and seamless deployment processes. 🗂️ Requirements: Proven experience with .NET development, Strong knowledge of Docker, Strong knowledge of Kubernetes, Familiarity with Microsoft Azure, Experience with Azure DevOps Server, Experience working in Agile environments, Experience implementing CI/CD practices, Ability to optimize application performance and scalability 📃 Skills: .NET, Docker, Kubernetes, Azure, AzureDevOps, CI/CD, Agile 🏢 Description: Main Responsibilities Design, develop, and maintain robust backend solutions. Collaborate across teams to ensure seamless software integration. Participate in the full software development lifecycle. Implement DevOps practices for continuous integration and delivery. Optimize application performance and scalability. Review and improve code quality through peer reviews. Key Requirements Proven experience with .NET development. Strong knowledge of Docker and Kubernetes . Familiarity with Microsoft Azure and Azure DevOps Server . Experience working in Agile environments . Strong problem-solving skills. Nice to Have Experience with microservices architecture . Knowledge of additional programming languages. Familiarity with front-end technologies.

🏢 Summary: The offer is for a Backend .NET Developer responsible for building and maintaining robust backend systems while supporting full software development lifecycle and DevOps practices. The role involves working in Agile teams, ensuring high performance, scalability, and seamless integration of applications. The position also emphasizes containerization and cloud-based solutions using Azure. 🗂️ Requirements: Proven experience with .NET development, Strong knowledge of Docker, Strong knowledge of Kubernetes, Familiarity with Microsoft Azure, Experience with Azure DevOps Server, Experience working in Agile environments 📃 Skills: .NET, Docker, Kubernetes, Azure, AzureDevOpsServer, Agile, DevOps, Microservices 🏢 Description: Main Responsibilities Design, develop, and maintain robust backend solutions. Collaborate across teams to ensure seamless software integration. Participate in the full software development lifecycle. Implement DevOps practices for continuous integration and delivery. Optimize application performance and scalability. Review and improve code quality through peer reviews. Key Requirements Proven experience with .NET development. Strong knowledge of Docker and Kubernetes . Familiarity with Microsoft Azure and Azure DevOps Server . Experience working in Agile environments . Strong problem-solving skills. Nice to Have Experience with microservices architecture . Knowledge of additional programming languages. Familiarity with front-end technologies.

🏢 Summary: Fullstack Developer role focused on building scalable web applications using ASP.NET, C#, and React, with strong emphasis on API design, event-driven architecture, and cloud-native environments. The position involves end-to-end development, CI/CD practices, containerized deployments, and collaboration in agile teams. Ideal for engineers experienced in backend services, modern frontend ecosystems, and orchestration tools. 🗂️ Requirements: Strong experience with ASP.NET, Strong experience with C#, Experience building scalable backend services and APIs, Strong experience with React, Understanding of modern frontend architecture, Experience with API design, Experience with GitLab CI/CD, Experience with RabbitMQ, Experience with Docker, Experience with Kubernetes 📃 Skills: ASP.NET, C#, React, TanStack, Tailwind, Playwright, RabbitMQ, Docker, Kubernetes, GitLab, Linux, Unity, APIs, CI/CD 🏢 Description: Role Overview We are looking for a skilled Fullstack Developer with strong backend expertise in ASP.NET and C#, combined with modern frontend development using React. The role involves building scalable web applications, designing robust APIs, and contributing to cloud-native and event-driven architectures. The ideal candidate is comfortable working across the full stack, collaborates well in agile teams, and has an interest in modern tooling, orchestration, and frontend ecosystems. Core Responsibilities • Design, develop, and maintain scalable fullstack applications • Build and maintain backend services using ASP.NET and C# • Develop responsive and modern frontend applications using React • Design and integrate APIs and asynchronous communication flows • Collaborate with developers, designers, QA, and DevOps teams • Contribute to architecture discussions and technical decisions • Ensure code quality through testing, reviews, and CI/CD practices • Participate in deployment, monitoring, and troubleshooting activities Must-Have Skills Backend • Strong experience with ASP.NET • Strong experience with C# • Experience building scalable backend services and APIs Frontend • Strong experience with React • Good understanding of modern frontend architecture and component-based development Should-Have Skills • Experience with GitLab Pipelines / CI-CD • Experience with API design and best practices Frontend Libraries & Tooling • Experience with: o TanStack o Tailwind CSS o Playwright o AI agent development (Kiro, Claude, Cursor) Messaging & Async Communication • Experience with: o RabbitMQ o Event-driven and asynchronous communication patterns • Understanding of async workflows across frontend and backend systems Infrastructure & Orchestration • Experience with: o Docker o Kubernetes • Familiarity with containerized deployments and orchestration Nice-to-Have Skills • Interest or experience in Unity / game development • Strong Linux competence Preferred Qualifications • Experience working in agile development environments • Strong problem-solving and debugging skills • Understanding of scalable and maintainable software architecture • Good communication and collaboration skills • Passion for learning modern technologies and frameworks Tech Stack Summary Area Backend: ASP.NET, C# Frontend: React Frontend Libraries: TanStack, Tailwind, Playwright Messaging: RabbitMQ Infrastructure: Docker, Kubernetes CI/CD: GitLab Pipelines Additional: Linux, API Design, Unity

🏢 Summary: Backend-focused role involving development of scalable web applications using Java and React/Next.js. The position includes building and optimizing server-side components, APIs, and databases while ensuring performance and security. Close collaboration with cross-functional teams and end-to-end responsibility for backend quality and scalability are expected. 🗂️ Requirements: Minimum 4 years experience in similar role, Proficiency in Java server-side programming, Strong knowledge of React and Next.js, Experience with React Router and Redux, Experience with MySQL, PostgreSQL or MongoDB, Experience building scalable web applications, Knowledge of web performance and security principles, Experience with Git version control, Ability to conduct testing and debugging, English level B2 or higher 📃 Skills: Java, React, Next.js, Redux, ReactRouter, MySQL, PostgreSQL, MongoDB, SQL, NoSQL, API, REST, Git, AWS, Azure, GCP, Docker, NodeJS, Security, Testing 🏢 Description: Responsibilities: Designing, developing, and maintaining the server-side logic of web applications Implementing scalable and efficient server-side components and APIs Build React/Next.js based applications Working with relational and/or NoSQL databases to store and retrieve data efficiently Designing and optimizing database schemas for performance and scalability Integrating third-party APIs and web services to enhance application functionality Developing custom APIs to facilitate communication between front-end and back-end systems Implementing security best practices to protect against common web application vulnerabilities Conducting regular security audits and implement necessary measures Optimization: optimizing server-side code for maximum speed and scalability Monitoring and troubleshooting performance issues Collaborating with front-end developers, UI/UX designers, and other team members to ensure seamless integration of components Using version control systems (e.g., Git) to manage and track changes to the codebase Conducting thorough testing of server-side components to identify and fix bugs Collaborating with QA engineers for comprehensive testing Clear and comprehensive documentation for back-end systems and APIs Requirements: At least 4 years of experience in a similar position Proficiency in Java server-side programming Thorough understanding of React/Next.js core principles along with React router, hooks, Redux (or the like) workflows, Web performance and security Experience with database systems (e.g., MySQL, PostgreSQL, MongoDB) Proven experience in back-end development and building scalable web applications Strong analytical and problem-solving skills with attention to detail Effective communication skills to collaborate with cross-functional teams Ability to adapt to changing project requirements and technologies English at least B2 Nice to have: Familiarity with cloud platforms (e.g., AWS, Azure, GCP) Previous experience in Front-end development with Docker Experience with NodeJS Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program