💻 Junior Software Engineer (Staż)

🏢 Summary: Development of reliable and secure web applications in .NET for fintech payment systems, including system architecture design and database development. The role involves creating new functionalities, maintaining existing solutions, and ensuring high system availability. Position offers close collaboration with business teams and impact on core payment processes. 🗂️ Requirements: Higher education in Computer Science or related field (completed or in progress), Proficiency in C#, Knowledge of .NET platform, Experience in ASP.NET MVC or ASP.NET Core MVC, Knowledge of MS SQL Server, Ability to write SQL queries, Ability to work with technical documentation 📃 Skills: C#, .NET, ASP.NET, ASP.NETCore, MVC, SQL, MSSQL 🏢 Description: Software Engineer 🚀 Dołącz do ITCARD jako Software Engineer! Szukamy osoby, która chce rozwijać aplikacje .NET i tworzyć rozwiązania wspierające kluczowe procesy płatnicze w środowisku fintech . Będziesz pracować nad systemami, które muszą być niezawodne, bezpieczne i gotowe na szybki rozwój — dlatego liczymy na Twoją uważność, techniczną ciekawość i chęć szukania najlepszych rozwiązań. Jeśli lubisz projektować nowoczesne aplikacje , pracować blisko biznesu i mieć realny wpływ na działanie produktów, u nas znajdziesz przestrzeń do rozwoju i współpracy z doświadczonym zespołem ✨ 📍 Lokalizacja: Warszawa 💼 Tryb pracy: Stacjonarna / Hybrydowa 📝 Typ umowy: Umowa o pracę 💸 Branża: Płatności 📌 Twój zakres obowiązków: Rozwój aplikacji internetowych w technologii .NET; Tworzenie baz danych oraz architektury systemów; Projektowanie nowych aplikacji i funkcjonalności; Testowanie, analizowanie i modyfikowanie istniejących rozwiązań; Obsługa incydentów i awarii zgodnie z procedurami; Współpraca z użytkownikami i zespołami korzystającymi z aplikacji. 🎯 Nasze wymagania: Wykształcenie wyższe lub w trakcie studiów (preferowana informatyka); Umiejętność programowania w C# i znajomość platformy .NET; Doświadczenie w tworzeniu aplikacji internetowych w ASP.NET MVC / ASP.NET Core MVC; Znajomość MS SQL Server i języka SQL; Wysokie kompetencje techniczne i chęć ciągłego rozwoju; Umiejętność pracy z dokumentacją techniczną; Odpowiedzialność, zaangażowanie i nastawienie na rozwój; Komunikatywność i kreatywność w podejściu do zadań. ⭐️ Mile widziane: Znajomość JavaScript, CSS5, jQuery lub vue.js; Znajomość Git; Doświadczenie w tworzeniu aplikacji wielowarstwowych; Znajomość standardów OWASP i zagadnień bezpieczeństwa IT; Wiedza z zakresu nowoczesnych wzorców projektowych i architektonicznych; Certyfikaty techniczne potwierdzające umiejętności. To oferujemy: 💳 Możliwość zdobycia doświadczenia w rozwojowej branży technologicznej; 📄 Stabilne zatrudnienie w oparciu o umowę o pracę; 🕒 Elastyczne godziny pracy i możliwość pracy hybrydowej; 🎉 Dodatkowy dzień urlopu z okazji urodzin; ☂ Ubezpieczenie na życie; 🏥 Prywatną opiekę medyczną; 🏋️‍♀️ Kartę Multisport; 🗣  Onlinowy kurs języka angielskiego; 🤝 Program rekomendacji pracowników; 👕 Luźny dress code; 🎊 Integracje, konkursy i wydarzenia firmowe; 🤗 Pracę w zespole ekspertów otwartym na współpracę i wymianę doświadczeń. 🔗 Zainteresowany/a? Napisz do nas lub aplikuj bezpośrednio!

🏢 Summary: Software Engineer role focused on building and maintaining scalable cloud-based applications with modern frontend technologies and DevSecOps practices. The position involves full software development lifecycle responsibilities, frontend architecture, observability, and collaboration with cross-functional teams in a hybrid work environment. Candidates should have strong experience with JavaScript/TypeScript, frontend frameworks, cloud concepts, and software engineering principles. 🗂️ Requirements: Bachelor's degree in Computer Science, Software Engineering, or related field, 5+ years of professional software development experience, JavaScript, TypeScript, React, Angular, Vue, HTML5, CSS3, Browser APIs, Accessibility, Cloud deployment concepts, Azure, Data structures, Algorithms, Software design principles, SQL, NoSQL, MSSQL, MySQL, MongoDB, GitHub, GitLab, DevSecOps, Frontend architecture, Problem-solving, Fluent English 📃 Skills: JavaScript, TypeScript, React, Angular, Vue, HTML5, CSS3, Azure, SQL, NoSQL, MSSQL, MySQL, MongoDB, GitHub, GitLab, Docker, Kubernetes, CI/CD, Scrum, Kanban 🏢 Description: Summary The Software Engineer will play a key role in designing, developing, and maintaining high-quality software solutions that meet the evolving needs of users and the business, while collaborating with cross-functional teams and contributing through the entire software development lifecycle. Main Responsibilities: Design, develop, test, deploy, and maintain robust, scalable, and high-performance software applications using cloud components. Develop reusable UI components and frontend architecture (design systems, state management, routing, bundling). Write clean, efficient, and well-documented code following best practices. Collaborate with product managers, UX/UI designers, and engineers to define, design, and ship new features. Debug and resolve technical issues, ensuring optimal application performance and reliability. Contribute to architectural discussions and decisions, shaping the future of the technical stack. Stay up-to-date with emerging technologies and industry trends to improve development processes and tools. Participate in code reviews, technical documentation, and continuous improvement of engineering standards. Apply DevSecOps practices: dependency management, vulnerability scanning, secrets handling, and secure coding. Establish observability for frontend applications (real-user monitoring, client-side logging, error tracking, performance monitoring). Identify and implement opportunities for automation and process improvements. Key Requirements: Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent practical experience. 5 years of professional experience in software development. Strong proficiency in JavaScript/TypeScript and modern frontend frameworks (React, Angular, or Vue). Strong understanding of web fundamentals: HTML5, CSS3, browser APIs, security basics, and accessibility. Familiarity with cloud deployment concepts (preferably Azure) and environment configuration. Solid understanding of data structures, algorithms, and software design principles. Experience with SQL and/or NoSQL databases (MSSQL, MySQL, MongoDB, etc.). Experience with version control systems (GitHub/GitLab). Strong problem-solving skills and ability to troubleshoot complex issues. Excellent communication and interpersonal skills. Ability to work independently and manage multiple priorities. Nice to Have: Experience with Docker and Kubernetes. Familiarity with CI/CD pipelines and GitHub actions/workflows. Experience with agile development methodologies (Scrum, Kanban). Proficiency with Agentic IDEs and "Agent in the loop" workflows. Experience in modern CSS architecture and ability to consistently implement design docs. Other Details: Location: Remote (hybrid model) Work Model: Hybrid (3 days in office/week) Work hours: CET Time zone (9 hours) Expected language skill: Fluent English

🏢 Summary: Full-time remote Software Engineer role focused on building and maintaining enterprise-grade web applications using Angular 20+ and ASP.NET Core (.NET 9+) in a cloud-native environment. The position involves end-to-end development, secure integrations, scalable architecture, and CI/CD-driven deployments. The engineer will work across the full stack, ensuring performance, security, and high code quality. 🗂️ Requirements: Strong experience with modern web development, Proficiency in Angular 20+, Proficiency in ASP.NET Core (.NET 9+), Proficiency in TypeScript and C#, Experience with Azure AD and MSAL, Experience with Entity Framework Core, Experience with SQL Server and relational databases, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Ability to write unit and integration tests 📃 Skills: Angular, ASP.NET, TypeScript, C#, AzureAD, MSAL, EntityFramework, SQL, Docker, Kubernetes, CI/CD, Vitest, xUnit, Moq, Azure, REST, AzureDevOps 🏢 Description: Software Engineer Work model : Remote Employment Type: Full-Time Job Summary We are seeking a highly skilled Software Engineer with strong experience in modern web application development to join our team in a fully remote setup. The ideal candidate will design, build, and maintain enterprise-grade applications using Angular 20+, ASP.NET Core (.NET 9+), and cloud-native technologies. This role requires excellent technical expertise, a proactive mindset, and the ability to collaborate effectively within cross-functional teams while working independently on complex tasks. Key Responsibilities Design and develop enterprise applications using Angular 20+ for the front end and ASP.NET Core (.NET 9+) for the back end. Implement standalone components and signals-based architecture to deliver responsive and maintainable user interfaces. Integrate Azure MSAL authentication, RESTful APIs, and external system integrations. Build and optimize data access layers using Entity Framework Core and manage relational data in SQL Server. Ensure application security through authentication, authorization, and data protection using Azure AD. Deploy and manage environments using Docker, Kubernetes, and CI/CD pipelines. Write comprehensive unit and integration tests for both front-end (Vitest) and back-end (xUnit, Moq). Collaborate with cross-functional teams to maintain shared libraries and iterate based on user feedback. Troubleshoot, debug, and optimize applications for scalability and performance across the entire stack. Participate actively in code reviews, including reviewing and approving Pull Requests. Document progress, key decisions, and outcomes using Azure DevOps Boards and Wiki. Required Qualifications Strong professional experience in software engineering with modern web technologies. Proficiency in Angular 20+, ASP.NET Core (.NET 9+), and TypeScript/C#. Hands-on experience with Azure AD, MSAL, and secure application design. Solid understanding of Entity Framework Core, SQL Server, and relational data modeling. Experience with Docker, Kubernetes, and CI/CD workflows. Ability to write high-quality unit and integration tests. Strong analytical and problem-solving skills. Excellent communication skills and the ability to work effectively in a remote environment. What We Offer Fully remote work environment. Collaborative and supportive team culture. Opportunities for continuous learning and professional growth. Work with modern technologies and impactful enterprise projects.

🏢 Summary: Software Engineer role focused on modernizing a mission-critical aviation platform by developing cloud-hosted backend services and scalable cloud-native solutions in AWS. The position involves backend modernization, Kubernetes and container management, CI/CD automation, and operational reliability improvements in a distributed engineering environment. The role offers hybrid work flexibility, B2B or UoP employment, and benefits including healthcare and life insurance. 🗂️ Requirements: Experience developing backend applications in cloud environments, Strong knowledge of AWS and cloud-native architectures, Hands-on experience with Linux, Hands-on experience with Docker, Hands-on experience with Apache, Hands-on experience with Java, Hands-on experience with Spring Boot, Experience with Kubernetes and containerized workloads, Experience with CI/CD, Experience with Infrastructure as Code, Experience with automation, Understanding of cloud security, Understanding of monitoring and production support practices, Strong troubleshooting and problem-solving skills, Ability to work independently and collaborate within distributed teams, English level B2 or higher 📃 Skills: AWS, Linux, Docker, Apache, Java, Spring, Kubernetes, CI/CD, IaC, Automation, SQL, MySQL, Security, Monitoring 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Strong knowledge of AWS and cloud-native architectures Hands-on experience with Linux, Docker, Apache, Java and Spring Boot Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a month in the office in Gdańsk or less frequently, depending on your availability Salary: 190 PLN net/h - to negotiate Benefits: life insurance, private healthcare, Multisport card

🏢 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: The offer is for a Software Engineer to modernize and develop cloud-hosted backend services for a mission-critical aviation platform used globally. The role focuses on building scalable, resilient, cloud-native solutions in AWS, improving automation, CI/CD, and Kubernetes-based environments. You will contribute to transforming a legacy system into a modern, secure, and highly scalable ecosystem. 🗂️ Requirements: Experience developing backend applications in cloud environments, Hands-on experience with Linux, Docker, Apache, PHP, Strong knowledge of AWS and cloud-native architectures, Experience with Kubernetes and containerized workloads, Experience with CI/CD and Infrastructure as Code, Knowledge of cloud security and monitoring practices, Ability to troubleshoot production systems, English B2 level or higher 📃 Skills: AWS, Linux, Docker, Apache, PHP, Kubernetes, CI/CD, IaC, SQL, MySQL, SQLServer, AI 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Hands-on experience with Linux, Docker, Apache, and PHP or Java Strong knowledge of AWS and cloud-native architectures Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a week in the office in Gdańsk or less frequently, depending on your availability Salary: up to 190 PLN net/h Benefits: life insurance, private healthcare, Multisport card Recruitment steps Recruitment call with Agnieszka from KUBO Client interview (may require 2 rounds) Feedback and decision

🏢 Summary: Opportunity to modernize a mission-critical aviation platform by designing and developing cloud-hosted backend services in a scalable, cloud-native AWS environment. The role focuses on building resilient APIs, improving automation and CI/CD pipelines, and managing Kubernetes-based infrastructure to support global aviation data distribution. You will contribute to a large-scale modernization initiative emphasizing scalability, security, and operational excellence. 🗂️ Requirements: Experience developing backend applications in cloud environments, Hands-on experience with Linux, Docker, Apache, and PHP or Java, Strong knowledge of AWS and cloud-native architectures, Experience with Kubernetes and containerized workloads, Experience with CI/CD and Infrastructure as Code, Understanding of cloud security, monitoring, and production support practices, Strong troubleshooting and problem-solving skills, English proficiency at minimum B2 level 📃 Skills: AWS, Linux, Docker, Apache, PHP, Java, Kubernetes, CI/CD, IaC, SQL, SQLServer, MySQL, AI 🏢 Description: We are looking for a Software Engineer to join a team responsible for modernizing a mission-critical aviation platform used by tens of thousands of customers worldwide. You will help design, build, and evolve cloud-hosted backend services that support the distribution of aviation data across desktop, mobile, and aircraft-connected workflows. This is a unique opportunity to work on a high-impact product while contributing to a large-scale modernization initiative focused on cloud-native architecture, automation, scalability, security, and operational excellence. Working closely with cross-functional teams, you will help transform a well-established platform into a modern, resilient, and highly scalable ecosystem capable of supporting future growth and new product offerings. Key responsibilities Develop and modernize backend services hosted in AWS Design and implement scalable, resilient cloud-native solutions Build and improve APIs, integrations, and automated backend processes Enhance CI/CD pipelines, infrastructure automation, monitoring, and observability Manage and troubleshoot Kubernetes-based environments and containerized applications Support production systems and drive reliability, security, and operational improvements Collaborate with product, mobile, desktop, QA, and DevOps teams to deliver high-quality solutions Leverage AI-assisted development tools to improve engineering efficiency while maintaining high standards of quality and security Ideal candidate profile Experience developing backend applications in cloud environments Hands-on experience with Linux, Docker, Apache, and PHP or Java Strong knowledge of AWS and cloud-native architectures Experience with Kubernetes and containerized workloads Experience with CI/CD, Infrastructure as Code, and automation Understanding of cloud security, monitoring, and production support practices Strong troubleshooting and problem-solving skills Ability to work independently and collaborate within distributed teams English min. B2. Nice to Have: Experience modernizing legacy applications and services Experience with SQL Server and MySQL Experience building highly available and resilient production systems Experience using AI-assisted software development tools Conditions Employment type: B2B or UoP Location: Gdańsk Work model: 1 day a week in the office in Gdańsk or less frequently, depending on your availability Salary: up to 190 PLN net/h Benefits: life insurance, private healthcare, Multisport card Recruitment steps Recruitment call with Agnieszka from KUBO Client interview (may require 2 rounds) Feedback and decision

🏢 Summary: The role involves designing, developing, and maintaining scalable cloud-based frontend applications with strong emphasis on architecture, performance, and security. It focuses on building reusable UI components, applying DevSecOps practices, and ensuring high-quality, observable, and reliable software delivery. The engineer collaborates across teams while contributing to architectural decisions and continuous improvement of development standards. 🗂️ Requirements: Bachelor's degree in Computer Science, Software Engineering or equivalent experience, 5+ years of professional software development experience, Strong proficiency in JavaScript and TypeScript, Experience with modern frontend frameworks (React, Angular, or Vue), Strong knowledge of HTML5, CSS3, browser APIs, and web security (XSS, CSP), Understanding of accessibility standards (WCAG), Familiarity with cloud deployment concepts (preferably Azure), Solid understanding of data structures, algorithms, and software design principles, Experience with relational or NoSQL databases, Experience with Git-based version control systems, Experience with Docker and Kubernetes, Experience with CI/CD pipelines and GitHub Actions, Knowledge of DevSecOps practices, Experience with CSS architecture and design tokens, Fluent English 📃 Skills: JavaScript, TypeScript, React, Angular, Vue, HTML5, CSS3, WCAG, Azure, MSSQL, MySQL, MongoDB, Cassandra, CosmosDB, GitHub, GitLab, Docker, Kubernetes, CI/CD, GitHubActions, DevSecOps, Scrum, Kanban 🏢 Description: Summary The Software Engineer role plays a critical part in enhancing software solutions that align with user and business demands by designing, developing, and maintaining applications throughout their lifecycle. Main Responsibilities: Design, develop, test, deploy, and maintain robust, scalable, and high-performance software applications using cloud components. Develop reusable UI components and frontend architecture (design systems, state management, routing, bundling). Write clean, efficient, and well-documented code following best practices. Collaborate with product managers, UX/UI designers, and other engineers to define, design, and ship new features. Debug and resolve technical issues, ensuring optimal application performance and reliability. Contribute to architectural discussions and decisions, helping to shape the future of our technical stack. Stay up-to-date with emerging technologies and industry trends, continuously seeking to improve our development processes and tools. Participate in code reviews, technical documentation, and continuous improvement of engineering standards. Apply DevSecOps practices: dependency management, vulnerability scanning, secrets handling, and secure coding. Establish observability for frontend applications (real-user monitoring, client-side logging, error tracking, performance monitoring). Key Requirements: Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience. 5 years of professional experience in software development (3+ years for mid-level, 5+ for senior). Strong proficiency in JavaScript/TypeScript and modern frontend frameworks (React, Angular, or Vue). Strong understanding of web fundamentals: HTML5, CSS3, browser APIs, security basics (XSS, CSP), accessibility (WCAG). Familiarity with cloud deployment concepts (preferably Azure) and environment configuration. Solid understanding of data structures, algorithms, and software design principles. Experience with relational and/or NoSQL databases (e.g., MSSQL, MySQL, MongoDB, Cassandra, Cosmos DB). Experience with version control systems (e.g., Github, GitLab). Strong problem-solving skills and the ability to troubleshoot complex issues. Excellent communication and interpersonal skills, with the ability to work effectively in a team environment. Ability to work independently and manage multiple priorities. Experience with Docker and Kubernetes. Familiarity with CI/CD pipelines, Github actions/workflow. Experience with agile development methodologies (Scrum, Kanban). Proficiency with Agentic IDEs and experience with "Agent in the loop" workflows. Proficiency with design tokens, mastery of CSS architecture (CSS Modules, Type-safe CSS), and ability to implement designs consistently across different frontend stacks. Nice to Have: Advanced knowledge of design systems and UI/UX principles. Experience with cross-browser compatibility testing. Familiarity with performance optimization techniques for web applications. Other Details: Language Requirements: Fluent English.

🏢 Summary: Senior Software Engineer role focused on designing, building, and scaling secure enterprise web applications and high-performance SaaS platforms. The position covers backend APIs, microservices, testing, technical leadership, and Azure-based CI/CD delivery within Agile teams. 🗂️ Requirements: 6+ years of full-lifecycle software development experience, Experience developing and maintaining large-scale web applications and SaaS solutions, Strong proficiency in C#, .NET Core, and .NET Framework, Hands-on experience with Azure Cloud services, RESTful architectures, and CI/CD pipelines, Experience with NUnit, Moq, Jest, and Git, Strong problem-solving and technical communication skills 📃 Skills: C#, .NET, Azure, REST, Microservices, NUnit, Moq, Jest, Git, CI/CD, SaaS 🏢 Description: We are looking for a skilled and passionate Senior Software Engineer to join the core engineering team. In this role, you will play a key part in designing, building, and scaling enterprise-grade web applications and high-performance SaaS solutions. If you have a strong foundation in Microsoft technologies, cloud architecture, and modern engineering practices—and love solving complex technical challenges—we would love to hear from you! Key Responsibilities Architecture & Development - Design, build, and maintain scalable, secure, and resilient web applications and SaaS platforms. API & Backend Systems - Implement and optimize RESTful APIs, microservices, and Web API integrations. Quality & Testing - Drive software quality by writing comprehensive unit tests using NUnit, Moq, and Jest, and advocate for test-driven practices. Technical Leadership - Participate in code reviews, architectural discussions, and technical planning to ensure clean, maintainable code. Agile Collaboration - Work closely with cross-functional teams using Agile methodologies to deliver features iteratively and efficiently. DevOps & Version Control - Utilize Git and Azure DevOps for continuous integration, project tracking, and modern deployment pipelines. Key Requirements Experience - 6+ years of hands-on experience in full-lifecycle software development. SaaS & Web Architecture - Proven track record of developing and maintaining large-scale web applications and SaaS solutions. Core Tech Stack - Strong proficiency in C#, .NET Core, and .NET Framework. Cloud & DevOps - Hands-on experience with Azure Cloud services, RESTful architectures, and CI/CD pipeline concepts. Testing & Tools - Solid experience with unit testing frameworks: NUnit, Moq, and Jest; and version control with Git. Communication - Excellent problem-solving skills and the ability to articulate technical concepts clearly to team members. Nice to Have Agile Frameworks - Experience working within a SAFe (Scaled Agile Framework) environment. Mentorship - Passion for coaching junior developers and fostering team growth.

🏢 Summary: B2B contract for two .NET + Blazor Developers to build and maintain scalable backend services and modern microfrontend-based systems in the insurance domain. The role focuses on developing REST integrations, contributing to system architecture, and enhancing existing modules in a hybrid work model. You will work with .NET technologies and Blazor WebAssembly to deliver robust, modular solutions. 🗂️ Requirements: Commercial experience in C# and .NET / .NET Core, Practical experience with Blazor WebAssembly, Experience designing and maintaining REST API, Knowledge of Entity Framework Core and SQL Server, Understanding of SOLID and Clean Code principles, Experience with modular architecture, Experience working with microfrontends, Proficiency with Visual Studio, Experience with Git or Bitbucket 📃 Skills: C#, .NET, .NETCore, Blazor, WebAssembly, EFCore, SQLServer, REST, Kafka, JavaScript, TypeScript, xUnit, NUnit, Git, Bitbucket, VisualStudio 🏢 Description: Szukamy 2 Software Developer / Engineer (.NET + Blazor) Kontrakt B2B Szukamy aż dwóch utalentowanych programistów Software Developer / Engineer (.NET + Blazor), którzy dołączą do zespołu naszego klienta z branży ubezpieczeń by rozwijać zaawansowane systemy i współtworzyć nowoczesną architekturę. Jeśli czujesz się pewnie w świecie .NET, a technologie frontendowe nie są Ci obce – czekamy właśnie na Ciebie! 💻 Stack: Backend: C#, .NET / .NET Core, EF Core, SQL Server, REST API, Apache Kafka Frontend: Blazor WebAssembly, Mikrofrontendy, podstawy JS/TS Dobre praktyki: SOLID, Clean Code, Architektura modularna 🗺️ Gdzie i jak pracujemy? Model hybrydowy: 4 dni zdalnie, 1 dzień w tygodniu w biurze w Warszawie, Ochota Czym będziesz się zajmować? Rozwojem i utrzymaniem skalowalnych usług backendowych w technologii .NET . Implementacją nowoczesnych integracji opartych na REST API oraz Apache Kafka . Analizą wymagań biznesowych oraz projektowaniem komponentów systemu. Aktywnym udziałem w definiowaniu i rozwoju architektury systemu ( backend + mikrofrontendy ). Refaktoryzacją oraz ciągłym ulepszaniem istniejących modułów. Czego oczekujemy? (Must Have) Komercyjnego doświadczenia w programowaniu w C# oraz .NET / .NET Core . Praktycznej znajomości Blazor WebAssembly do tworzenia aplikacji frontendowych. Doświadczenia w projektowaniu, implementacji i utrzymaniu REST API . Znajomości Entity Framework Core oraz relacyjnych baz danych ( SQL Server ). Zrozumienia i stosowania w praktyce zasad SOLID, Clean Code oraz architektury modularnej. Doświadczenia w pracy z mikrofrontendami . Sprawnego poruszania się w Visual Studio oraz systemach kontroli wersji ( Git / Bitbucket ). Mile widziane (Nice to Have): Doświadczenie w integracjach asynchronicznych z wykorzystaniem Apache Kafka (tworzenie producentów i konsumentów). Podstawowa znajomość JavaScript / TypeScript . Doświadczenie w pisaniu testów automatycznych ( xUnit, NUnit , testy integracyjne). Oferujemy: Możliwość skorzystania z pakietów medycznych oraz karty multisport. 👋 Brzmi jak Twoje kolejne wyzwanie zawodowe? Kliknij "Aplikuj" i porozmawiajmy o szczegółach!