May 4, 2026

Full Stack udvikler

Senior • On-site

Copenhagen, Denmark

Til en af vores kunder søger vi en Full Stack udvikler med Blazor erfaring.

 

Benyttet teknologi

Der bygges grundlæggende som en modulær monolit, med elementer af DDD, og en generaliseret abstrakt metadata-drevet arkitektur, tilpasset de forretningsmæssige udfordringer. Systemet bygges på Microsoft-teknologi. Herunder .NET, ASP.NET Core, EF Core, Blazor (med FluentUI) og Aspire. Det er formodningen, at systemet vil driftes i Microsoft Azure (provisioneret via Bicep), men systemet bygges, så det kan køre andre steder (ikke stærkt koblet til Azure). Backlog, source-control, CI/CD m.v. håndteres i Azure DevOps, og der arbejdes i Microsoft Visual Studio 2026.

 

Kompetenceprofil

Konsulenten vil indgå som full-stack-udvikler i teamet, hvor full-stack er som beskrevet ovenfor, og skal kunne bidrage til hele stakken, men det er ikke et krav at kunne dække 100% af de nævnte faglige punkter.

 

Faglighed

  • Dybdegående kendskab og erfaring med C# (Herunder generics med komplekse constraints, covarians og contravariance, abstract static interface members, structs og value type semantics, ref returns m.v.)

  • Erfaring med den moderne .NET teknologi-stak (.NET 10, frozen og immutable collections, IAsyncEnumerable, Span m.v.)

  • Erfaring med Blazor (Vigtigt)

  • Erfaring med HTML og CSS til at kunne arbejde med en Blazor applikation bygget med FluentUI komponenter

  • Kendskab til principper fra domain driven design (Arvehierakier, aggregates, boundaries og stærke analytiske evner indenfor domænemodellering)

  • Erfaring med performance-kritisk kode (Pooling, allokeringer, inlining, boxing, defensive struct copies, benchmarking)

  • Erfaring med ASP.NET Core og HTTP (Endpoint routing, REST, CORS, PipeReader/PipeWriter m.v.)

  • Erfaring med framework/library udvikling og erfaring med kode-generering (Roslyn source generators)

  • Erfaring med systemudvikling, og oversættelse af forretningsmæssige krav til kode-implementation

  • Erfaring med integrationer fra begge sider; Både integrationer mod 3. part, og udstilling af integrationsflader til 3. part. (Herunder retries, outbox-pattern, kontrakt-bindinger og versionering, auth m.v.)

  • Har arbejdet med sikkerhed, herunder trusselsmodellering, IdP, mTLS, kryptering, RBAC m.v.

 

Personlighed

  • Har ikke en religiøs tilgang til udvikling af software, og ikke drevet af hype eller ensidigt fokus (TDD, DDD, Microservices, Event Driven, AI etc.)

  • Er indstillet på at arbejde på hele stakken (fra CSS og .NET til SQL og Bicep)

  • Kan tage imod, og give, feedback, også på den kode der produceres

  • Trives i et miljø hvor opgaverne ikke er fuldt kendte på forhånd, og du indgår i refinement

 Start: 1. Juni

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Krakow, Poland

18,000 - 22,000 PLN

🏢 Summary: Offer for an experienced Full Stack Developer to design and develop modern web applications across frontend and backend. The role focuses on building React-based user interfaces, implementing Java server-side logic, and working with PostgreSQL and Azure cloud services. It includes involvement in CI/CD processes and maintaining high code quality within an Agile environment. 🗂️ Requirements: Minimum 4–5 years of commercial experience as Full Stack Developer, Strong practical knowledge of React, Strong practical knowledge of Java, Strong practical knowledge of PostgreSQL, Experience with Azure Functions, Experience with CI/CD tools (Azure DevOps, GitHub Actions, Jenkins), Knowledge of Clean Code principles and code review standards, Experience working in Agile/Scrum methodology, English level minimum B2 📃 Skills: React, Java, PostgreSQL, Azure, AzureFunctions, CICD, AzureDevOps, GitHubActions, Jenkins, Microservices, Scrum, Agile, CleanCode 🏢 Description: Zakres obowiązków: Projektowanie, implementacja oraz rozwój nowoczesnych aplikacji webowych, obejmujących zarówno warstwę frontendową, jak i backendową, Tworzenie i rozbudowa responsywnych komponentów interfejsu użytkownika w technologii React, Programowanie wydajnej logiki serwerowej w języku Java, Projektowanie struktur danych oraz optymalizacja zapytań w środowisku bazodanowym PostgreSQL, Wdrażanie i rozwój usług opartych na technologii Azure Functions, Budowa oraz bieżące utrzymanie procesów ciągłej integracji i wdrażania (CI/CD), Ścisła współpraca w ramach interdyscyplinarnego zespołu projektowego (Developerzy, Inżynierowie QA, Architekci), Zapewnianie wysokiej jakości dostarczanego oprogramowania poprzez aktywny udział w procesach Code Review, Wymagania: Minimum 4–5 lat udokumentowanego doświadczenia komercyjnego na stanowisku Full Stack Developera, Bardzo dobra, praktyczna znajomość kluczowych technologii projektu: React (frontend), Java (backend) oraz baz danych PostgreSQL, Doświadczenie w pracy z rozwiązaniami typu serverless (Azure Functions) oraz z narzędziami do automatyzacji procesów CI/CD (np. Azure DevOps, GitHub Actions, Jenkins), Ugruntowana wiedza z zakresu dobrych praktyk inżynierii oprogramowania, w tym stosowanie zasad Clean Code, dbałość o pokrycie kodu testami oraz znajomość standardów przeglądu kodu, Doświadczenie w realizacji projektów prowadzonych w metodykach zwinnych (Agile / Scrum), Znajomość języka angielskiego na poziomie minimum B2, pozwalająca na swobodną komunikację w międzynarodowym środowisku projektowym, Mile widziane: Szersze doświadczenie w projektowaniu i optymalizacji rozwiązań w środowisku chmurowym Microsoft Azure, Znajomość oraz praktyczne doświadczenie w pracy z architekturą mikroserwisową, Udział w realizacji wysoce złożonych, skalowalnych systemów informatycznych klasy Enterprise,

Technology

moondigo sp. z o.o.

Fullstack Developer (.NET + React)

Mid

Remote

Warsaw, Poland

22,000 - 27,000 PLN

🏢 Summary: Long-term remote Full-Stack Developer role for a UK banking client within a global enterprise environment. The position involves building and maintaining .NET and React applications, integrating REST APIs, and working with SQL Server in a regulated financial services setting. Offers exposure to enterprise-scale banking solutions with a B2B contract and remote work from Poland. 🗂️ Requirements: 3+ years of full-stack development experience, Proficiency in C#, Experience with ASP.NET Core, Experience with .NET Web API, Experience with React, Knowledge of HTML5, Knowledge of CSS3, Knowledge of JavaScript, Knowledge of TypeScript, Experience with RESTful APIs, Experience with SQL Server, Knowledge of stored procedures, functions, and views, Experience with Entity Framework, Understanding of design patterns, Knowledge of database normalization, Experience with Azure DevOps, Knowledge of CI/CD, Understanding of application security, performance, and scalability, Bachelor's degree in Computer Science or related field 📃 Skills: C#, ASP.NET, .NET, React, HTML5, CSS3, JavaScript, TypeScript, REST, SQL, SQLServer, EntityFramework, AzureDevOps, CI/CD, Azure, SFTP 🏢 Description: We are looking for an experienced Full-Stack Developer to join a long-term project for one of the world's leading professional services organizations. You will work within a global technology team delivering solutions for a UK-based banking client in a regulated, enterprise-scale environment. Location: 100% Remote (Poland) with occasional visits to Warsaw office Client: Global professional services firm, banking & financial services sector, UK Requirements 3+ years of experience in full-stack development, with proficiency in most of the following: C#, ASP.NET Core, .NET Web API React — state management, component architecture HTML5, CSS3, JavaScript / TypeScript RESTful API design and integration SQL Server — queries, stored procedures, functions, views Entity Framework Design patterns and database normalization Azure DevOps for source control and CI/CD Application security, performance, and scalability best practices Bachelor's degree in Computer Science or related field Nice to Have Azure Cloud Services and cloud-native architecture SFTP and encryption/secure file transfer protocols Experience with vendor software integration and custom interfaces Responsibilities Design, develop, and maintain web applications using .NET (C#, ASP.NET Core) and React Build responsive user interfaces with HTML, CSS, JavaScript, and React Develop and consume RESTful APIs to connect client-side and server-side components Implement and optimize data storage using SQL Server (stored procedures, functions, views) Perform coding, debugging, testing, and troubleshooting throughout the development lifecycle Maintain and enhance existing systems, fixing complex bugs and escalating risks where needed Capture detailed requirements from stakeholders and translate them into technical specifications Ensure adherence to coding standards, design patterns, and security best practices Collaborate with vendor teams and third-party integrations Monitor emerging technologies and contribute ideas for continuous improvement We Offer 100% remote work from Poland Occasional team meetups in Warsaw Long-term project with a prestigious international client Exposure to enterprise-scale banking solutions B2B Contract Private medical care ( Luxmed ) MultiSport sports card

Technology

moondigo sp. z o.o.

Fullstack Developer (.NET + React)

Mid

Remote

22,000 - 27,000 PLN

🏢 Summary: Full-Stack Developer role on a long-term, enterprise-scale banking project, delivering web solutions using .NET and React in a regulated environment. The position involves end-to-end development, API integration, and database optimization within a global technology team. Work is fully remote from Poland with collaboration on complex financial systems. 🗂️ Requirements: 3+ years of full-stack development experience, Proficiency in C# and ASP.NET Core, Experience with .NET Web API, Strong knowledge of React including state management and component architecture, Experience with HTML5, CSS3, JavaScript or TypeScript, Experience designing and integrating RESTful APIs, Strong SQL Server skills including queries and stored procedures, Experience with Entity Framework, Knowledge of design patterns and database normalization, Experience with Azure DevOps for source control and CI/CD, Understanding of application security, performance, and scalability best practices, Bachelor's degree in Computer Science or related field 📃 Skills: C#, .NET, ASP.NETCore, WebAPI, React, HTML5, CSS3, JavaScript, TypeScript, REST, SQL, SQLServer, EntityFramework, AzureDevOps 🏢 Description: We are looking for an experienced Full-Stack Developer to join a long-term project for one of the world's leading professional services organizations. You will work within a global technology team delivering solutions for a UK-based banking client in a regulated, enterprise-scale environment. Location: 100% Remote (Poland) with occasional visits to Warsaw office Client: Global professional services firm, banking & financial services sector, UK Requirements 3+ years of experience in full-stack development, with proficiency in most of the following: C#, ASP.NET Core, .NET Web API React — state management, component architecture HTML5, CSS3, JavaScript / TypeScript RESTful API design and integration SQL Server — queries, stored procedures, functions, views Entity Framework Design patterns and database normalization Azure DevOps for source control and CI/CD Application security, performance, and scalability best practices Bachelor's degree in Computer Science or related field Nice to Have Azure Cloud Services and cloud-native architecture SFTP and encryption/secure file transfer protocols Experience with vendor software integration and custom interfaces Responsibilities Design, develop, and maintain web applications using .NET (C#, ASP.NET Core) and React Build responsive user interfaces with HTML, CSS, JavaScript, and React Develop and consume RESTful APIs to connect client-side and server-side components Implement and optimize data storage using SQL Server (stored procedures, functions, views) Perform coding, debugging, testing, and troubleshooting throughout the development lifecycle Maintain and enhance existing systems, fixing complex bugs and escalating risks where needed Capture detailed requirements from stakeholders and translate them into technical specifications Ensure adherence to coding standards, design patterns, and security best practices Collaborate with vendor teams and third-party integrations Monitor emerging technologies and contribute ideas for continuous improvement We Offer 100% remote work from Poland Occasional team meetups in Warsaw Long-term project with a prestigious international client Exposure to enterprise-scale banking solutions B2B Contract Private medical care ( Luxmed ) MultiSport sports card