Fullstack Dev (.NET & Angular & Flutter)

🏢 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: B2B contract opportunity for a Fullstack Developer to build and maintain scalable web and mobile applications using Angular, Flutter, and .NET technologies in a hybrid model. The role involves developing frontend and backend components, designing RESTful APIs, and ensuring security, performance, and quality within Agile teams. The position offers collaboration with cross-functional teams and growth across modern technologies. 🗂️ Requirements: Minimum 2 years of software development experience, Strong knowledge of Angular and Flutter, Proficiency in HTML, Proficiency in CSS, Strong knowledge of TypeScript, Strong knowledge of JavaScript frameworks, Experience with C#, Experience with .NET, Experience with SQL Server, Experience with NoSQL databases, Ability to design and implement RESTful APIs, Experience with Git, Experience working in Agile methodologies 📃 Skills: Angular, Flutter, HTML, CSS, TypeScript, JavaScript, C#, .NET, SQL, SQLServer, NoSQL, REST, Git, Agile 🏢 Description: We’re looking for a Fullstack Developer (m/f/n) to join our client's dynamic development team and help build high-quality, scalable applications that make an impact. You’ll work closely with cross-functional teams to deliver secure, performant, and user-friendly solutions — and have the opportunity to grow your skills across multiple technologies. What you’ll do: Develop, maintain, and enhance applications using Angular and Flutter Support backend development with C#/.NET and SQL Design and implement RESTful APIs and integrate them with frontend applications Ensure application security, performance, and scalability Perform unit testing, debugging, and participate in code reviews Collaborate in Agile sprints, contributing to planning, development, testing, and deployment Work closely with the Product team to translate requirements into technical solutions Stay up to date with emerging technologies and suggest process improvements What we’re looking for: 2+ years of software development experience Strong knowledge of Angular, Flutter, HTML, CSS, TypeScript, and JavaScript frameworks Experience with C#/.NET and SQL Server (plus NoSQL) Familiarity with Git and Agile methodologies Strong problem-solving skills and attention to detail Excellent communication and teamwork skills A proactive mindset and eagerness to learn new technologies Nice to have: Experience with Ionic or Cordova Knowledge of Azure or AWS cloud platforms Familiarity with Azure Functions, Azure DevOps, and CI/CD pipelines Experience with authentication frameworks (OAuth, JWT, IdentityServer) Interest in cross-platform development Offer: Contract type: B2B via Shimi Rate: 100 PLN/h netto+VAT Work model: hybrid (3 days at the office in Cracow) Benefits: Multisport and Luxmed cards

🏢 Summary: Full-stack role focused on leading frontend and mobile development with Angular and Flutter while supporting backend services in C#/.NET and SQL Server. The position involves building scalable applications, integrating REST APIs, and contributing across the full Agile lifecycle through CI/CD deployment. Hybrid work in Kraków with B2B contract. 🗂️ Requirements: 3+ years professional experience, Strong proficiency in Angular, Strong proficiency in Flutter, Strong proficiency in TypeScript, Strong proficiency in HTML, Strong proficiency in CSS, Experience with C#, Experience with .NET, Experience with SQL Server, Experience designing and integrating REST APIs, Experience with Git, Experience working in Agile methodology, Ability to perform unit testing and debugging, Knowledge of performance, scalability and secure coding practices 📃 Skills: Angular, Flutter, TypeScript, HTML, CSS, C#, .NET, SQLServer, REST, Git, Agile, CI/CD, Testing, Debugging 🏢 Description: Join a dynamic development team in Kraków to build high-quality, scalable applications. This role is unique in its breadth: you will lead frontend and mobile efforts using Angular and Flutter , while simultaneously supporting backend services powered by C#/.NET and SQL . You will be part of a product-focused team where your work directly impacts real customers daily, moving projects from initial requirements through Agile sprints to final deployment. Details Location: Kraków (Hybrid) Rate: 90-105 PLN/h net + VAT (B2B). Employment Type: Full-time. Seniority: 3+ years of professional experience. Start Date: ASAP. Responsibilities Cross-Platform Development: Building and maintaining applications using Angular (web) and Flutter (mobile). Backend Support: Developing and supporting services with C#/.NET and SQL Server . API Integration: Designing and implementing RESTful APIs and ensuring seamless frontend-to-backend connectivity. Quality Assurance: Performing unit testing, debugging, and participating in rigorous code reviews. Agile Collaboration: Contributing to the full lifecycle of Agile sprints, from planning to CI/CD deployment. Requirements Frontend/Mobile: Strong proficiency in Angular, Flutter, TypeScript , and modern CSS/HTML. Backend: Experience with C#/.NET and SQL Server (knowledge of NoSQL is a plus). Workflow: Familiarity with Git and Agile methodologies. Security: Awareness of performance, scalability, and secure coding practices. Nice to Have Mobile Extras: Experience with Ionic or Cordova . Cloud & DevOps: Familiarity with Azure/AWS , Azure Functions, and CI/CD pipelines. Identity: Knowledge of OAuth, JWT, or IdentityServer .

🏢 Summary: B2B Software Engineer role focused on building and enhancing frontend applications with Angular and Flutter while supporting backend services in C#/.NET and SQL. The position involves developing RESTful APIs, ensuring application security and performance, and working in Agile sprints within a mostly remote setup. The role combines cross-platform development with backend integration and modern DevOps practices. 🗂️ Requirements: 3+ years of software development experience, Strong knowledge of Angular and Flutter, Strong knowledge of HTML, CSS, TypeScript, JavaScript, Experience with C#/.NET, Experience with SQL Server, Experience with NoSQL databases, Experience designing and implementing RESTful APIs, Experience with Git, Experience working in Agile methodologies, Ability to perform unit testing and debugging 📃 Skills: Angular, Flutter, HTML, CSS, TypeScript, JavaScript, C#, .NET, SQL, SQLServer, NoSQL, REST, Git, Agile, Azure, AWS, AzureFunctions, AzureDevOps, CI/CD, OAuth, JWT, IdentityServer, Ionic, Cordova 🏢 Description: Join a client’s company as a Software Engineer, working on frontend development with Angular and Flutter, supporting backend services with C#/.NET and SQL, and collaborating on user-friendly applications. RESPONSIBILITIES Develop, maintain, and enhance applications using Angular and Flutter Support backend development with C#/.NET and SQL Design and implement RESTful APIs and integrate them with frontend applications Ensure application security , performance , and scalability Perform unit testing , debugging, and participate in code reviews Collaborate in Agile sprints , contributing to planning, development, testing, and deployment Work closely with the Product team to translate requirements into technical solutions Stay up to date with emerging technologies and suggest process improvements REQUIREMENTS 3+ years of software development experience Strong knowledge of Angular , Flutter , HTML , CSS , TypeScript , and JavaScript frameworks Experience with C#/.NET and SQL Server (plus NoSQL) Familiarity with Git and Agile methodologies Strong problem-solving skills and attention to detail Excellent communication and teamwork skills A proactive mindset and eagerness to learn new technologies NICE TO HAVE Experience with Ionic or Cordova Knowledge of Azure or AWS cloud platforms Familiarity with Azure Functions, Azure DevOps, and CI/CD pipelines Experience with authentication frameworks (OAuth, JWT, IdentityServer) Interest in cross-platform development WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 90-100 PLN/hour / Cooperation based on a B2B contract. Hybrid work: (90% remote) from Kraków (1-2 times a month in the office). The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Ilona Wójcik Junior IT Delivery Consultant ilona.wojcik@speedapp.pl +48 882 842 363

🏢 Summary: Senior C#/.NET Full Stack Engineer role focused on maintaining and evolving a large, business-critical enterprise/SaaS system with complex domain logic. The position involves backend and frontend development, mobile applications with Cordova, API design, and architectural contributions for scalable, high-load systems. The engineer will work extensively with legacy code, performance optimization, and complex technical problem-solving. 🗂️ Requirements: 8+ years commercial experience with C# and .NET, Strong experience with Angular or AngularJS, Extensive knowledge of JavaScript and TypeScript, Hands-on experience with Cordova for iOS and Android, Experience in API development using .NET, Experience with relational databases and SQL, Experience with Git version control, Experience working on large enterprise or SaaS systems, Strong debugging and complex problem-solving skills, Ability to work with large and legacy codebases, Experience with scalable and high-load architectures, Understanding of software architecture and design patterns 📃 Skills: C#, .NET, Angular, AngularJS, JavaScript, TypeScript, Cordova, iOS, Android, SQL, SQLServer, Git, REST, APIs 🏢 Description: We are looking for a strong C#/.NET engineer to join a project focused on large enterprise and SaaS systems. This role is suited for an experienced engineer who is comfortable working with complex business logic, large codebases, and mature systems, and who takes ownership of technical decisions rather than just implementing tasks. About the Project: The project is a long-running, business-critical system with a complex domain and significant technical depth. You will work on maintaining and evolving an existing platform, including improving scalability, performance, and reliability. A substantial part of the work involves understanding legacy code, debugging complex issues, and contributing to the system as a key technical member of the team. Responsibilities: Design, develop, and maintain backend solutions using C#/.NET; Build and maintain cross-platform mobile applications using the Cordova framework (iOS and Android); Develop and maintain front-end features using Angular and TypeScript; Design and implement APIs using the .NET framework; Work with complex business logic in large enterprise or SaaS environments; Analyze, understand, and improve existing and legacy codebases; Solve complex technical and production issues; Collaborate closely with other engineers and stakeholders; Contribute to architectural decisions for scalable and high-load systems. Qualifications: 8+ years of solid commercial experience with full stack .NET/C# development combined with Angular or AngularJS; Extensive experience with Angular, JavaScript, and TypeScript for front-end development; Hands-on experience with the Cordova framework for building mobile applications (iOS and Android); native mobile development experience is not required; Expertise in API development using the .NET framework; Strong understanding of software architecture principles and experience applying design patterns to real-world projects; Hands-on experience with relational databases (e.g. SQL Server) and SQL for data querying and optimization; Experience with version control systems (e.g. Git) and familiarity with agile methodologies; Experience working on large enterprise systems and/or SaaS platforms; Experience playing a key role in projects (e.g. key developer, leading engineer, technical owner); Strong experience solving complex technical problems and very good debugging skills; Ability to work effectively with large and unfamiliar codebases; Experience with scalable architectures and high-load systems; An engineering mindset with the ability to deeply understand systems and make mature technical decisions. Recruitment Process: Initial interview with our recruitment team; Technical interview with the client; Final decision and offer. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.

🏢 Summary: Development role focused on designing and delivering software solutions for a UK financial institution, working closely with business teams across the full technology stack. The position involves building modern .NET and Angular applications, contributing to solution design, and supporting production systems. 🗂️ Requirements: 5+ years experience with .NET and C#, Commercial experience with Angular, Experience with .NET 6 or higher, Experience with .NET Core, Experience with SQL databases, Cross-stack development experience, Experience with API design and development, Knowledge of Azure cloud 📃 Skills: .NET, .NETCore, C#, Angular, SQL, Azure, APIs 🏢 Description: We are looking for a Developer to join our team and work with us for one of our clients - financial institution from UK. Main goals: design & development of software solutions to support the business requirements. Responsibilities Design, develop and deliver software solutions in conjunction with the Business Teams Work in conjunction with the Business Teams during the design process to contribute to business and technical solutions Actively promote and distribute knowledge amongst peers in the development team Identify innovative opportunities which will improve the businesses ability to succeed Provide expert / second line application support to users About You Must have: +5 years of experience: .NET, C#, Angular & English Skills: Cross stack working knowledge, including the following mandatory technologies: Microsoft technologies including .NET (6 and above) .NET Core C# Angular SQL Desirable: Knowledge of Azure cloud Knowledge of API Design and Development Analytical skills and ability to understand complex problems Willingness to investigate, trial and propose new concepts, technologies and approaches Enthusiastic and flexible attitude to work Nice to have: Copilot experience Understanding of automated testing techniques Other Relevant Information: Team player Good attention to detail Good communication skills Willing to take responsibility What we offer Friendly organisational culture Work in a small company in a friendly atmosphere, where your satisfaction is an important value B2B or work contract Flexible working format - remote, office-based or hybrid Flexible working hours Integration events English lessons

🏢 Summary: Senior C# / .NET Engineer role focused on maintaining and evolving a large, business-critical enterprise/SaaS system with complex domain logic. The position involves working with legacy codebases, solving complex technical issues, and contributing to architectural decisions for scalable, high-load systems. The engineer will also support frontend integration using Angular technologies when needed. 🗂️ Requirements: Strong commercial experience with C#, .NET development experience, Knowledge of Angular or AngularJS, Knowledge of TypeScript, Experience with large enterprise or SaaS systems, Experience working with legacy codebases, Experience solving complex technical problems, Strong debugging skills, Experience with scalable and high-load architectures, Ability to work with large and unfamiliar codebases 📃 Skills: C#, .NET, Angular, AngularJS, TypeScript, SQL, REST, OOP 🏢 Description: We are looking for a strong C# / .NET engineer to join a project focused on large enterprise and SaaS systems. This role is suited for an experienced engineer who is comfortable working with complex business logic, large codebases, and mature systems, and who takes ownership of technical decisions rather than just implementing tasks. About the Project: The project is a long-running, business-critical system with a complex domain and significant technical depth. You will work on maintaining and evolving an existing platform, including improving scalability, performance, and reliability. A substantial part of the work involves understanding legacy code, debugging complex issues, and contributing to the system as a key technical member of the team. Responsibilities: Design, develop, and maintain backend solutions using C# / .NET; Work with complex business logic in large enterprise or SaaS environments; Analyze, understand, and improve existing and legacy codebases; Solve complex technical and production issues; Collaborate closely with other engineers and stakeholders; Contribute to architectural decisions for scalable and high-load systems; Support frontend integration using Angular / AngularJS and TypeScript where needed. Qualifications: Strong commercial experience with C# / .NET; Knowledge of Angular or AngularJS and TypeScript; Experience working on large enterprise systems and/or SaaS platforms; Experience playing a key role in projects (e.g. key developer, leading engineer, technical owner); Strong experience solving complex technical problems; Experience working with legacy code; Very good debugging skills; Ability to work effectively with large and unfamiliar codebases; Experience with scalable architectures and high-load systems; An engineering mindset with the ability to deeply understand systems and make mature technical decisions. Recruitment Process: Initial interview with our recruitment team; Technical interview with the client; Final decision and offer. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.

🏢 Summary: B2B contract role for a Full-Stack Software Engineer to develop and maintain backend services in C#/.NET and frontend components in React within a dynamic, international project environment. The position involves building scalable solutions, integrating REST APIs, and supporting implementations with effective problem-solving. Remote work with long-term project engagement. 🗂️ Requirements: Proficiency in C# and .NET for scalable services development, Experience with React.js and React Query, Experience with Azure SQL and MS SQL, Experience building RESTful APIs with ASP.NET Core (OpenAPI), Knowledge of CI/CD processes and Agile methodologies, Experience with Azure DevOps or GitHub, English at minimum B2 level 📃 Skills: C#, .NET, React, ReactQuery, AzureSQL, MSSQL, REST, ASP.NET, OpenAPI, CI/CD, AzureDevOps, GitHub, Azure 🏢 Description: We are currently looking for a Full-Stack Software Engineer for our client, a world-leading provider of digital solutions and applications, with a particular focus on the energy, maritime, and healthcare markets. If working in a dynamic environment is something you’re comfortable with and you use the tech stack listed below on a daily basis, this opportunity is for you! Key responsibilities Developing advanced backend solutions in C# Creating and maintaining frontend components Preparing technical documentation Supporting implementations through quick and effective problem-solving Balancing changing priorities with ongoing development work Ideal candidate profile Proficient in .NET for building scalable services React.js, React Query Azure SQL, MS SQL RESTful APIs with ASP.NET Core (OpenAPI Standard) Knowledge of Agile methodologies and CI/CD processes (Azure DevOps, GitHub) English on B2 level nice to have: Experience with Azure (App Services, Azure Functions, Key Vault, Storage Accounts, Entra ID) Experience using AI-based development tools (Microsoft Copilot, GitHub Copilot) Conditions Employment Type: B2B contract Salary: Depends on your experience Work Model : Remote work model (possible 2–4 business trips per year to the office in Poland or Norway) Benefits : private medical care, sport card, life insurance Project duration: Project start March/April, with a duration of at least until the end of the year Recruitment steps Phone call with Recruiter Client interview Feedback and decision

🏢 Summary: Development of an innovative web platform for the financial industry using C# and modern web technologies. The role involves designing, building, and enhancing product features with .NET Core, React.js, and SQL databases. The position offers real impact on product evolution through hands-on technical contribution. 🗂️ Requirements: Minimum 5 years of experience in object-oriented programming, Solid experience in C# and .NET Core development, Experience in building web applications using MVC framework, Hands-on experience with SQL databases, Working knowledge of React.js, Practical experience with Entity Framework 📃 Skills: C#, .NET, .NETCore, MVC, SQL, MSSQL, Oracle, React, EntityFramework, OOP 🏢 Description: We are looking for a skilled C# Developer to join our team working on an innovative web platform for the financial industry . If you enjoy working with modern technologies like .NET Core, Azure, and React.js/Angular , and want to be part of a collaborative team. We’d love to hear from you! Your role As a C# Developer , you will work alongside experienced engineers, contributing to the development of new product features and enhancing existing ones. You’ll have a direct impact on the product's evolution, with the freedom to bring in your own ideas and solutions. Offer A real opportunity to make an impact — we truly value ideas and suggestions from the team, and we encourage you to bring them to life, Attractive salary and the chance to work with modern technologies, Occasional international travel (mainly to London, UK), A modern office in the center of Wrocław. Requirements Minimum 5 years of experience in object-oriented programming, Solid experience in designing, coding, and debugging in C# / .NET Core , Experience in building web applications using the MVC framework , Hands-on experience with SQL databases (e.g., MS SQL, Oracle), Working knowledge of React.js , or Angular Practical understanding of Entity Framework , Strong communication skills in English (both written and spoken) and the ability to collaborate effectively in a team, Proactive attitude, enthusiasm, and a results-driven mindset — we’re looking for people who love learning and using new technologies to build great products. Nice to have: Familiarity with design patterns , Experience with CSS frameworks (e.g., Bootstrap), Knowledge of Microsoft Azure , Understanding of CI/CD processes , including automated deployments with Azure DevOps.

🏢 Summary: C# Developer role focused on building and enhancing a modern web platform for the financial industry using .NET Core, React, and cloud technologies. The position involves developing new features, maintaining existing functionality, and contributing to architectural decisions within a collaborative engineering team. The offer includes impactful product work with modern tech stack and international collaboration. 🗂️ Requirements: Minimum 5 years of experience in object-oriented programming, Strong experience with C#, Commercial experience with DotNetCore, Experience building web applications using MVC, Hands-on experience with SQL databases, Experience with MSSQL or Oracle, Working knowledge of React, Practical experience with EntityFramework 📃 Skills: C#, DotNetCore, MVC, SQL, MSSQL, Oracle, React, EntityFramework, Azure, AzureDevOps, CICD, OOP 🏢 Description: We are looking for a skilled C# Developer to join our team working on an innovative web platform for the financial industry . If you enjoy working with modern technologies like .NET Core, Azure, and React.js , and want to be part of a collaborative team. We’d love to hear from you! Your role As a C# Developer , you will work alongside experienced engineers, contributing to the development of new product features and enhancing existing ones. You’ll have a direct impact on the product's evolution, with the freedom to bring in your own ideas and solutions. Offer A real opportunity to make an impact — we truly value ideas and suggestions from the team, and we encourage you to bring them to life, Attractive salary and the chance to work with modern technologies , Occasional international travel (mainly to London, UK), A modern office in the center of Wrocław . Requirements Minimum 5 years of experience in object-oriented programming, Solid experience in designing, coding, and debugging in C# / .NET Core , Experience in building web applications using the MVC framework , Hands-on experience with SQL databases (e.g., MS SQL, Oracle), Working knowledge of React.js , Practical understanding of Entity Framework , Strong communication skills in English (both written and spoken) and the ability to collaborate effectively in a team, Proactive attitude, enthusiasm , and a results-driven mindset — we’re looking for people who love learning and using new technologies to build great products. Nice to have: Familiarity with design patterns , Experience with CSS frameworks (e.g., Bootstrap), Knowledge of Microsoft Azure , Understanding of CI/CD processes , including automated deployments with Azure DevOps.