.NET Developer (with Java experience)

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

🏢 Summary: 12-month B2B contract for an experienced .NET Developer to design, develop, and enhance business-critical IT systems, combining software development with system and data analysis. The role involves building web applications, working with data warehouse processes, and translating business requirements into technical solutions in cooperation with stakeholders. Remote work with occasional visits to Łódź office. 🗂️ Requirements: Minimum 3 years of programming experience in IT projects, .NET and C# proficiency, Experience with SQL and SQL Server Integration Services, Experience with HTML and MVC.NET, Knowledge of JavaScript, jQuery, jQuery UI, HTML5, CSS3, Experience in web application development, Knowledge of Visual Studio Ultimate 2013, Understanding of unit testing and test automation, Knowledge of design patterns and object-oriented programming, Experience in designing and developing information systems for large-scale or financial institutions, Experience in business and system requirements analysis, English sufficient for technical documentation, Ability to work with Large Language Models 📃 Skills: .NET, C#, SQL, SSIS, HTML, MVC, JavaScript, jQuery, jQueryUI, HTML5, CSS3, VisualStudio, OOP, TestAutomation, LLMs 🏢 Description: PROJECT DETAILS: Contract B2B , 12 months + extensions Rate: up to 125 PLN/h nett + VAT Working model : remote with occasional visits to Łódź’s office (2 times per month) We are looking for an experienced .NET Developer to join a project focused on developing, implementing, and improving business-critical IT systems. This role combines hands-on software development with business and system analysis, data-related activities, documentation, testing, and cooperation with internal stakeholders and external vendors. The project involves IT systems that are partly based on Oracle technologies and data warehouse processes. The person in this role will work closely with business users to gather, analyse, and refine requirements, translate business concepts into clear system specifications, and support the delivery of high-quality technical solutions. RESPONSIBILITIES : Leading design and implementation activities within IT systems based on Oracle-related technologies. Developing and maintaining web applications using .NET, C#, SQL, HTML, JavaScript, jQuery, and related technologies. Cooperating with business users to gather, analyse, and clarify requirements for data and system solutions. Translating general business concepts into detailed functional and technical requirements. Participating in internal software testing and supporting test automation activities. Creating and updating technical and functional system documentation. Supporting the design of new solutions and contributing to future system development directions. Implementing improvements related to data quality across systems and applications, and exporting data to a data warehouse. Reviewing and providing feedback on technical specifications, project documentation, technical documentation, and administrative documentation prepared by external teams. Working with business stakeholders, internal clients, and external vendors. REQUIREMENTS : Minimum 3 years of programming experience in IT projects. Very good knowledge of .NET and C#. Experience with SQL, SQL Server Integration Services, HTML, and MVC.NET. Knowledge of JavaScript, jQuery, jQuery UI, HTML5, and CSS3. Experience in developing web applications. Knowledge of Visual Studio Ultimate 2013. Understanding of unit testing and test automation processes. Good knowledge of design patterns and object-oriented programming principles. Experience in designing and developing information systems for financial institutions or organisations with a similar scale, complexity, and IT quality requirements. Knowledge of business and system requirements analysis. Strong analytical thinking and the ability to formulate clear and precise conclusions. Ability to cooperate with business clients, internal stakeholders, and external suppliers. High level of independence, good work organisation, goal orientation, and consistency in task delivery. Strong communication skills, curiosity, and negotiation abilities. English is sufficient for working with technical documentation and professional literature. Ability to work with Large Language Models. Nice to Have Basic knowledge of UX design. Knowledge of Agile and XP methodologies. Knowledge of PL/SQL and Oracle databases. Practical experience with CASE tools, such as Sparx Systems Enterprise Architect. Knowledge of UML. Experience working in a matrix organisation. Knowledge of ITIL.

🏢 Summary: Long-term fully remote B2B contract for a .NET Developer focused on maintaining and developing applications based on .NET Framework 4.7 and WinForms. The role involves designing, optimizing, deploying, and supporting software solutions in production environments. The position emphasizes system improvement, code quality, and close collaboration within cross-functional teams. 🗂️ Requirements: Experience with .NET Framework (preferably 4.7), Experience with WinForms, Strong knowledge of SQL, Strong knowledge of Entity Framework, Experience in application deployment, Experience in production support, Ability to maintain and optimize existing systems, Experience in code refactoring and code quality improvement, Experience with technical documentation, Familiarity with Jira or similar issue-tracking tools, Strong debugging skills 📃 Skills: .NET, WinForms, SQL, EntityFramework, Jira, Debugging, Refactoring 🏢 Description: We are looking for a .NET Developer : Key Details: Long-term B2B contract (140–170 PLN/hour) Fully remote work Tech stack: .NET Framework (mainly 4.7), WinForms, SQL, Entity Framework Requirements: Experience with .NET Framework (preferably version 4.7) and WinForms Strong knowledge of SQL and Entity Framework Ability to design and develop software solutions aligned with user needs Experience with deploying applications and supporting them in production environments Skills in maintaining, improving, and optimizing existing systems (performance, security, functionality) Ability to collaborate effectively with cross-functional teams (engineers, designers, analysts, Product Managers) Experience in writing and maintaining technical documentation Familiarity with Jira or similar tools for tracking issues and feedback Experience with refactoring code and improving code quality Willingness to share knowledge and support team development Strong debugging and problem-solving skills to ensure application stability and reliability

🏢 Summary: Backend Developer (.NET) role in a long-term enterprise project focused on development and maintenance of large-scale business systems. The position involves designing and implementing new features, optimizing existing solutions, and ensuring high performance and stability. Hybrid work model with strong emphasis on code quality and system reliability. 🗂️ Requirements: Experience with C#, Knowledge of .NET Core / .NET 6+, Experience with ASP.NET / ASP.NET Core (MVC, Web API), Experience with Entity Framework / EF Core (migrations, query optimization), Experience with MS SQL Server (T-SQL, stored procedures, indexes, optimization), Experience with migration scripts and Entity Framework, Experience with SQL Server Agent Jobs, Knowledge of HTML5 and CSS3, Experience with JavaScript and jQuery, Knowledge of Bootstrap, Experience with IIS configuration and manual deployments, Ability to monitor logs and diagnose errors, Knowledge of Windows Server, Experience with REST and SOAP, Knowledge of JSON and XML, Experience with GIT 📃 Skills: C#, .NET, ASP.NET, MVC, WebAPI, EF, SQL, TSQL, MSSQL, HTML5, CSS3, JavaScript, jQuery, Bootstrap, IIS, WindowsServer, REST, SOAP, JSON, XML, GIT 🏢 Description: Dla naszego klienta poszukujemy Backend Developera (.NET) do długoterminowego projektu związanego z rozwojem i utrzymaniem systemów biznesowych o dużej skali. Rola obejmuje projektowanie i rozwój nowych funkcjonalności, optymalizację istniejących rozwiązań oraz współpracę z zespołami frontendowymi i infrastrukturalnymi. Projekt realizowany jest w środowisku enterprise, z naciskiem na jakość kodu, wydajność oraz stabilność systemów. Tryb pracy Praca hybrydowa: 3 dni pracy zdalnej 2 dni pracy w biurze w Warszawie Start Od zaraz (możliwość dopasowania terminu rozpoczęcia dla odpowiedniego kandydata) Wymagane kompetencje Backend / .NET Wymagane: C#, .NET Core / .NET 6+ ASP.NET / ASP.NET Core (MVC, Web API) Entity Framework / EF Core (migracje, optymalizacja zapytań) Mile widziane: .NET Framework 4.8 REST / SOAP Programowanie asynchroniczne i wielowątkowe Znajomość zasad SOLID i wzorców projektowych WCF, WinForms, WPF Office Interop / COM Interop Bazy danych Wymagane: MS SQL Server (T-SQL, procedury składowane, indeksy, optymalizacja) Skrypty migracyjne, praca z Entity Framework SQL Server Agent Jobs (harmonogramowanie i automatyzacja zadań) Mile widziane: SSIS (ETL) SAS, PostgreSQL, Oracle, Teradata Frontend Wymagane: HTML5, CSS3 JavaScript, jQuery Bootstrap DevOps / Utrzymanie Wymagane: IIS (konfiguracja, wdrożenia manualne) Monitorowanie logów i diagnostyka błędów Windows Server Mile widziane: WPF / WinForms (aplikacje desktopowe) Podstawy UNIX Dodatkowe kompetencje Komunikacja międzyserwisowa (REST, SOAP, JSON, XML) GIT

🏢 Summary: Remote Senior .NET Developer role (EST hours) focused on designing and enhancing backend services for a banking trading platform, with strong emphasis on .NET and Oracle PL/SQL development in an Agile environment. The position involves building scalable integrations and maintaining critical trading functionalities. It targets experienced backend engineers within financial services. 🗂️ Requirements: 6+ years backend development experience, Strong experience with .NET Framework, Strong experience with C#, Solid expertise in Oracle PL/SQL, Experience with REST APIs, Experience with distributed application architectures, Experience in enterprise or financial services environments, Ability to work in Agile teams, Poland based candidate, Availability to work EST hours 📃 Skills: .NET, C#, Oracle, PLSQL, REST, SQL, CI/CD, Git, Agile 🏢 Description: *We are looking for Poland based candidate. The job is remote with EST working hours. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. Build scalable backend solutions powering the next generation of digital trading experiences. The Role We are looking for a Senior .NET Developer to join a high-performing delivery team supporting the enhancement and expansion of a leading banking client’s trading application platform. You will play a key role in designing, developing, and maintaining backend services and integrations that support critical trading functionality and business operations. This role is ideal for someone with strong backend engineering expertise, solid database development experience, and a collaborative mindset who enjoys working in fast-paced Agile delivery environments. What You’ll Do Design, develop, and maintain backend services and APIs using .NET Framework technologies Develop and optimize Oracle PL/SQL packages, procedures, functions, and database objects Collaborate with cross-functional teams including QA, business analysts, and frontend developers to deliver new trading platform features Participate in code reviews, technical design discussions, and release activities to ensure high-quality software delivery Troubleshoot production issues, identify performance improvements, and support ongoing platform stability What We’re Looking For 6+ years of backend development experience within enterprise or financial services environments Strong hands-on experience with .NET Framework and C# application development Solid expertise in Oracle PL/SQL development and database optimization Experience working with REST APIs, integrations, and distributed application architectures Strong problem-solving, communication, and stakeholder collaboration skills within Agile teams Bonus Points For Experience working on trading platforms, banking systems, or capital markets applications Familiarity with performance tuning and query optimization in Oracle databases Exposure to CI/CD pipelines, source control tools, and automated deployment processes Understanding of secure coding standards and enterprise application best practices We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. Recruitment Process: HR Interview with the recruiter Technical Interview Client Interview Feedback and offer

🏢 Summary: Senior .NET Developer role focused on building and modernizing a real-time digital platform with microservices architecture and Kubernetes readiness. The position involves backend development in .NET, API integrations, architectural decision-making, and occasional frontend work in React within a highly autonomous technical team. The offer includes hybrid work, flexible hours, and long-term B2B cooperation. 🗂️ Requirements: 6+ years commercial experience as .NET Developer, Very good knowledge of modern .NET versions, Experience with asynchronous and multithreaded programming, Practical knowledge of microservices or SOA architecture, Experience with REST API, Knowledge of CI/CD and basic DevOps practices, Basic knowledge of React, Understanding of application security principles, Teamwork and communication skills, English level B1/B2 📃 Skills: .NET, C#, REST, React, RabbitMQ, Kubernetes, CI/CD, DevOps, SOA, Microservices, API, Node.js 🏢 Description: Cześć! W związku z rozwojem firmy oraz planowaną budową kolejnych zespołów, poszukujemy Senior .NET Developera. Dołączysz do zespołu rozwijającego zaawansowaną, cyfrową platformę reagującą w czasie rzeczywistym na zdarzenia z wielu zewnętrznych systemów. Projekt wyróżnia się złożoną logiką biznesową, kodem wielowątkowym oraz dużym naciskiem na wydajność i optymalizację w kluczowych obszarach. System przechodzi obecnie transformację z architektury monolitycznej na mikroserwisy, przygotowując się do wdrożenia w środowisku Kubernetes. Nowe funkcjonalności powstają jako niezależne, skonteneryzowane serwisy, komunikujące się za pomocą RabbitMQ i API REST, co daje zespołowi pełną swobodę w kształtowaniu kierunku technologicznego. W roli tej będziesz miał możliwość podejmować wraz zespołem kluczowe decyzje architektoniczne, brać czynny udział w doborze technologii, a także uczestniczyć w całym cyklu życia produktu. Nasz dział IT ma pełną kontrolę nad decyzjami technologicznymi, co w połączeniu z płaską strukturą w firmie, pozwala na sprawne wprowadzanie innowacyjnych rozwiązań. Widełki: 135 - 189 PLN net/h (B2B) + VAT Zakres odpowiedzialności: - Rozwój i utrzymanie backendu w oparciu o .NET - Projektowanie i implementacja skalowalnych, wydajnych rozwiązań - Tworzenie i rozwój API oraz integracji systemowych - Okazjonalna praca przy warstwie frontendowej w React - Dbanie o jakość kodu poprzez Code Review i dobre praktyki - Współpraca z innymi developerami oraz zespołami technicznymi - Aktywny udział w decyzjach technicznych i architektonicznych Wymagania: - Minimum 6 lat doświadczenia komercyjnego jako .NET Developer - Bardzo dobra znajomość aktualnych wersji .NET - Doświadczenie w pracy z kodem asynchronicznym i wielowątkowym - Praktyczna znajomość architektury mikroserwisowej lub SOA - Doświadczenie w pracy z API (REST) - Znajomość CI/CD oraz podstawowych praktyk DevOps - Podstawowa znajomość React i gotowość do realizowania okazjonalnych zadań frontendowych - Świadomość zasad bezpieczeństwa aplikacji - Dobre umiejętności komunikacyjne i doświadczenie w pracy zespołowej - Język angielski na poziomie min. B1/B2 Mile widziane: - Zainteresowanie architekturą systemów - Znajomość Node.js - Zainteresowanie obszarem DevOps Co otrzymasz? - Atrakcyjne wynagrodzenie w oparciu o kontrakt B2B: 135 - 189 PLN net/h + VAT - Swobodny wybór narzędzi i możliwość wpływu na kształt i rozwój stanowiska - Stabilne zatrudnienie na kontrakcie na czas nieokreślony - Elastyczne godziny pracy - W 80% pracę zdalną - Dużą niezależność i samodzielność - Możliwość rozwoju i proponowania rozwiązań - Bezpośredni wpływ na architekturę i rozwój systemów - Budżet na zakup sprzętu - Pakiet kafeteryjny - Współpracę z zespołem doświadczonych programistów, w tym bezpośrednio z CTO firmy - Dobrą atmosferę oraz nastawienie na rozwiązywanie problemów

🏢 Summary: Senior .NET Developer role focused on building and evolving a real-time digital platform with complex business logic and multithreaded code. The position involves migrating a monolithic system to microservices and developing containerized services deployed on Kubernetes. You will design scalable backend solutions, create REST integrations, and influence architectural decisions across the full product lifecycle. 🗂️ Requirements: Minimum 6 years of commercial experience as .NET Developer, Very good knowledge of current .NET versions, Experience with asynchronous and multithreaded programming, Practical experience with microservices architecture or SOA, Experience in designing and developing REST APIs, Knowledge of CI/CD and basic DevOps practices, Basic knowledge of React and readiness to handle occasional frontend tasks, Understanding of application security principles, English at minimum B1/B2 level 📃 Skills: .NET, C#, REST, Microservices, SOA, Kubernetes, Docker, RabbitMQ, CI/CD, React, Multithreading, Asynchronous, DevOps, API 🏢 Description: Cześć! W związku z rozwojem firmy oraz planowaną budową kolejnych zespołów, poszukujemy Senior .NET Developera. Dołączysz do zespołu rozwijającego zaawansowaną, cyfrową platformę reagującą w czasie rzeczywistym na zdarzenia z wielu zewnętrznych systemów. Projekt wyróżnia się złożoną logiką biznesową, kodem wielowątkowym oraz dużym naciskiem na wydajność i optymalizację w kluczowych obszarach. System przechodzi obecnie transformację z architektury monolitycznej na mikroserwisy, przygotowując się do wdrożenia w środowisku Kubernetes. Nowe funkcjonalności powstają jako niezależne, skonteneryzowane serwisy, komunikujące się za pomocą RabbitMQ i API REST, co daje zespołowi pełną swobodę w kształtowaniu kierunku technologicznego. W roli tej będziesz miał możliwość podejmować wraz zespołem kluczowe decyzje architektoniczne, brać czynny udział w doborze technologii, a także uczestniczyć w całym cyklu życia produktu. Nasz dział IT ma pełną kontrolę nad decyzjami technologicznymi, co w połączeniu z płaską strukturą w firmie, pozwala na sprawne wprowadzanie innowacyjnych rozwiązań. Lokalizacja: Gdańsk, praca hybrydowa (3-4x w tygodniu praca zdalna) Widełki: 135 - 189 PLN net/h (B2B) + VAT Zakres odpowiedzialności: Rozwój i utrzymanie backendu w oparciu o .NET, Projektowanie i implementacja skalowalnych, wydajnych rozwiązań, Tworzenie i rozwój API oraz integracji systemowych, Okazjonalna praca przy warstwie frontendowej w React, Dbanie o jakość kodu poprzez Code Review i dobre praktyki, Współpraca z innymi developerami oraz zespołami technicznymi, Aktywny udział w decyzjach technicznych i architektonicznych,. Wymagania: Minimum 6 lat doświadczenia komercyjnego jako .NET Developer, Bardzo dobra znajomość aktualnych wersji .NET, Doświadczenie w pracy z kodem asynchronicznym i wielowątkowym, Praktyczna znajomość architektury mikroserwisowej lub SOA, Doświadczenie w pracy z API (REST), Znajomość CI/CD oraz podstawowych praktyk DevOps, Podstawowa znajomość React i gotowość do realizowania okazjonalnych zadań frontendowych, Świadomość zasad bezpieczeństwa aplikacji, Dobre umiejętności komunikacyjne i doświadczenie w pracy zespołowej, Język angielski na poziomie min. B1/B2. Mile widziane Zainteresowanie architekturą systemów Znajomość Node.js, Zainteresowanie obszarem DevOps. Co otrzymasz? Atrakcyjne wynagrodzenie w oparciu o kontrakt B2B: 135 - 189 PLN net/h + VAT Swobodny wybór narzędzi i możliwość wpływu na kształt i rozwój stanowiska, Stabilne zatrudnienie na kontrakcie na czas nieokreślony, Elastyczne godziny pracy, W 80% pracę zdalną, chyba że lubisz pracę w biurze, wtedy zapraszamy serdecznie do nas częściej :) Dużą niezależność, samodzielność, Możliwość rozwoju i proponowania rozwiązań - bezpośredni wpływ na architekturę i rozwój systemów, Budżet na zakup sprzętu, Pakiet kafeteryjny, Współpracę z zespołem doświadczonych programistów, w tym będziesz pracować bezpośrednio z CTO firmy, Dobrą atmosferę oraz nastawienie na rozwiązywanie problemów, dzięki czemu większość ludzi jest z nami od lat.

🏢 Summary: Senior .NET Developer role focused on building and enhancing a custom industrial application supporting end-to-end production and logistics processes. The position involves backend development in .NET, frontend development with Angular, and designing microservices-based solutions deployed in AWS. The project emphasizes scalability, traceability, and continuous product improvement. 🗂️ Requirements: Minimum 5 years of commercial experience as a .NET Developer, Strong hands-on experience with .NET in backend development, Practical experience with Angular in frontend development, Experience with microservices-based architecture, Experience with AWS cloud services 📃 Skills: .NET, Angular, AWS, Microservices 🏢 Description: We are looking for a Senior .NET Developer to join a long‑term product development project in the industrial and manufacturing domain. The role focuses on building and maintaining a custom‑built application that supports end‑to‑end production and logistics processes for industrial clients. The project uses modern technologies and follows an innovation‑driven approach, with strong emphasis on process traceability, scalability, and continuous improvement. Your tasks Develop and maintain backend solutions using .NET for a custom industrial application Implement new product functionalities according to business and process requirements Build and extend frontend features using Angular Design and develop solutions based on a microservices architecture Develop, deploy, and maintain solutions in an AWS cloud environment Requirements Minimum 5 years of commercial experience as a .NET Developer Strong hands‑on experience with .NET in backend development Practical experience with Angular in frontend development Experience working with microservices‑based architectures Experience working with AWS cloud services Fluency in English Residing in Poland required

🏢 Summary: Backend Developer (.NET) role focused on development, maintenance, and modernization of an existing logistics system. The position involves working with legacy code, fixing bugs, refactoring, and improving business logic within a live operational environment. The role requires close collaboration with development and analytics teams. 🗂️ Requirements: 3–5 years of experience with .NET, Proficiency in C#, Experience with ASP.NET MVC or ASP.NET Core, Strong knowledge of SQL Server, Experience working with legacy codebases, Ability to debug and analyze complex issues, Experience with REST API, English level B2 minimum 📃 Skills: .NET, C#, ASP.NET, MVC, Core, SQL, SQLServer, REST, EntityFramework, Docker, UnitTesting 🏢 Description: Organizacja z branży logistycznej, rozwijająca własne systemy operacyjne, poszukuje osoby na stanowisko Backend Developer (.NET). Rola skupiona jest na rozwoju i stabilizacji istniejącego systemu oraz stopniowym jego unowocześnianiu. Zakres obowiązków Rozwój i utrzymanie systemu w technologii .NET Analiza i rozwiązywanie błędów w systemie (bugfixy) Refaktoryzacja istniejącego kodu Analiza logiki biznesowej i jej usprawnianie Współpraca z zespołem developerskim i analitycznym Praca z kodem bez pełnej dokumentacji Wymagania Min. 3–5 lat doświadczenia w .NET Dobra znajomość: C# ASP.NET (MVC / Core) SQL Server Doświadczenie w pracy z istniejącym kodem (legacy) Umiejętność debugowania i analizy problemów Znajomość REST API Znajomość języka angielskiego na poziomie minimum B2 Mile widziane Entity Framework (klasyczny i Core) Podstawy testów jednostkowych Znajomość Docker Oferujemy Pracę przy systemach o realnym wpływie na operacje biznesowe Możliwość rozwoju technologicznego Stabilne zatrudnienie Wpływ na jakość i rozwój systemu

🏢 Summary: Hybrid Regular .NET Developer role focused on building and maintaining IT solutions for the financial sector, including Oracle-based systems and web applications. The position involves software development, system design, testing, documentation, and collaboration with business users and external vendors. Candidates should have strong experience with .NET technologies, SQL, web development, and enterprise-scale financial systems. 🗂️ Requirements: Very good knowledge of .NET framework, Ability to work with LLMs, Minimum 3 years of experience with C# and .NET, Experience with WCF, Experience with SQL and SSIS, Knowledge of ASP.NET MVC, Proficiency in JavaScript, Proficiency in jQuery, Proficiency in HTML5 and CSS3, Experience with Visual Studio Ultimate 2013, Knowledge of unit testing and test automation, Experience developing web applications, Understanding of OOP principles and design patterns, Experience designing IT systems for financial institutions or enterprise environments, Ability to analyze business and system requirements, English proficiency for technical documentation 📃 Skills: .NET, C#, WCF, SQL, SSIS, HTML, HTML5, ASP.NET, MVC, JavaScript, jQuery, CSS3, VisualStudio, OOP, LLM, Oracle, PLSQL, UML, ITIL, AGILE, XP 🏢 Description: .NET Developer (Regular) Financial Technology Sector | Hybrid Work (Łódź, Poland) Work Model: Hybrid (On-site 2 times a month in Łódź) Role Overview & Responsibilities We are seeking a skilled Regular .NET Developer to join our team and build high-quality IT solutions for the financial sector. In this role, you will be responsible for: Conducting design and implementation work in IT systems (including Oracle-based technologies). Collaborating with end/business users to gather and analyze data requirements for new solutions, specifically detailing general tasks and business concepts. Actively participating in internal software testing. Creating and updating technical and functional system documentation. Cooperating in the development of new solutions and defining technical directions. Implementing actions to improve data quality in systems and applications exporting data to the data warehouse. Supporting the review of technical specifications, as well as project, technical, and administrative documentation prepared by third-party vendors. Key Requirements Absolute Must-Haves: Very good knowledge of the .NET framework. Ability to work with Large Language Models (LLMs) . Strong teamwork skills combined with high independence. Experience & Technical Skills: Minimum 3 years of programming experience in IT projects using C#, .NET (including v4.5), WCF, SQL, SQL Server Integration Services (SSIS), HTML, and ASP.NET MVC. Proficiency in JavaScript, jQuery, jQuery UI, HTML5, and CSS3. Familiarity with Visual Studio Ultimate 2013. Knowledge of unit testing and the test automation process. Proven experience in developing web applications. Strong understanding of Object-Oriented Programming (OOP) principles and design patterns. Practical experience designing and programming IT systems for financial institutions (or similar enterprise environments in terms of scale, complexity, and quality standards). Soft Skills & Competencies: High degree of independence, goal orientation, and consistency in task execution. Excellent work organization, fast learning ability, and teamwork skills. Knowledge of business and system requirements analysis, specifically analytical thinking and precise communication. Ability to effectively cooperate with business clients, internal stakeholders, and external suppliers. High communication skills, natural inquisitiveness, and negotiation abilities. English proficiency sufficient for freely working with technical documentation and literature. Nice to Have Understanding of basic UX design principles. Familiarity with AGILE and XP methodologies. Knowledge of PL/SQL and Oracle databases. Practical knowledge of at least one CASE tool (e.g., Sparx Systems Enterprise Architect) and UML. Experience working in a matrix organizational structure. Familiarity with ITIL best practices.