Senior .NET Backend Udvikler

🏢 Summary: Part-time Frontend Developer role focused on building and modernizing user-facing applications as part of a database modernization project. Responsibilities include developing forms, search and reporting pages, and integrating frontend solutions with REST APIs. The role also involves driving UX processes and strengthening React and Next.js practices within the team. 🗂️ Requirements: Proven experience with React and Next.js, Experience integrating REST APIs (JSON/OpenAPI), Experience with UX tools for prototyping and user testing, Proficiency with Git and GitLab for version control, Experience working with Kanban boards, Ability to integrate frontend solutions with backend services, Experience with user involvement and iterative testing 📃 Skills: React, Next.js, REST, JSON, OpenAPI, Git, GitLab, Kanban, UX, Prototyping, UserTesting, Java, Databases 🏢 Description: emagine søger lige nu en Frontend Udvikler til en af vores kunder. Projektet ved kunden, har til formål at modernisere kundens database. Hovedansvarsområder Konsulenten skal bidrage til udviklingen af brugervendte applikationer. Herunder bl.a.: En indberetningsformular til registrering af boringer En moderniseret søgeside, der giver adgang til data fra databasen Rapport- og detaljesider til visning af data for enkelte entitete Et indgangswebsite med beskrivelse og dokumentation af systemet. Konsulenten forventes at arbejde tæt sammen med det øvrige team og skal kunne koble frontend-løsningerne til eksisterende og kommende backend-tjenester i form af REST API'er. Ud over selve udviklingsopgaverne, forventes konsulenten at bidrage proaktivt til at etablere og drive UX-processer i teamet, herunder brugerinddragelse, prototyping og iterativ afprøvning af løsninger. Det er desuden et ønske, at konsulenten aktivt bidrager til at styrke teamets kompetencer inden for React og Next.js gennem sparring og videndeling i det daglige arbejde. Nøglekrav Erfaring med React og Next.js Erfaring med REST API-integration (JSON/OpenAPI) Erfraring med UX-værktøjer til prototyping og brugertest Git/GitLab til versionsstyring og projektopfølgning via kanban-boards Kendskab til Java-backend og databaseintegration er en fordel, men ikke et krav. Erfaring med brugerinddragelse og iterativ afprøvning. Opstart: 4 august 2026 Varighed: 5 mdr. Workload: Deltid, onsite. Ca. 21 timer om ugen, fordelt på 3 dage, med deltagelse i daglige stand-ups på de tre faste projektdage. Lokation: København

🏢 Summary: Short-term contract for a MES Developer to develop and enhance Manufacturing Execution Systems using C# and .NET. The role focuses on digitalizing and optimizing production processes through backend development and system integrations with production equipment, ERP systems, and databases. Engagement is 4–6 months with possible extension, based in Høje Taastrup. 🗂️ Requirements: Strong C# skills, Solid .NET experience, Experience with MES systems, Experience with databases, Experience with system integration 📃 Skills: C#, .NET, MES, SQL, ERP, Cloud, Backend, Integration 🏢 Description: MES Udvikler (C# / .NET) Vi søger en dygtig udvikler til udvikling og videreudvikling af MES-løsninger (Manufacturing Execution Systems). Du bliver en central del af arbejdet med at digitalisere og optimere produktionsprocesser gennem moderne softwareløsninger baseret på C# og .NET. Dine arbejdsopgaver Udvikling og vedligeholdelse af MES-systemer Integration mellem produktionsudstyr, ERP-systemer og databaser Udvikling af backend-løsninger i C# og .NET Nøglekrav Stærke færdigheder i C# Solid erfaring med .NET Kendskab til MES-løsninger Erfaring med databaser Evne til at integrere systemer effektivt Nice to Have Erfaring med ERP-systemer Kendskab til brug af cloud-løsninger Start: ASAP Varighed: 4-6 måneder + mulighed for forlængelse Location: Høje taastrup

🏢 Summary: Full Stack developer role focused on building a modular monolith based on Microsoft technologies, with strong emphasis on Blazor and modern .NET. The position involves working across the entire stack, from frontend with Blazor and FluentUI to backend, integrations, and cloud infrastructure in Azure. The developer will contribute to architecture, performance-critical code, and secure integrations in a DDD-inspired system. 🗂️ Requirements: Strong experience with C# including advanced language features, Experience with modern .NET stack (.NET 10), Proven experience with Blazor, Experience with ASP.NET Core and HTTP concepts, Experience with EF Core, Experience with HTML and CSS, Knowledge of Domain Driven Design principles, Experience with performance optimization in .NET, Experience with integration patterns (REST, retries, outbox, versioning), Experience with security implementations (IdP, mTLS, encryption, RBAC), Experience with Azure and infrastructure as code, Experience with CI/CD pipelines 📃 Skills: C#, .NET, Blazor, ASP.NET, EF, HTML, CSS, Azure, Bicep, AzureDevOps, VisualStudio, DDD, REST, HTTP, Roslyn, SQL, FluentUI, Aspire, mTLS, RBAC, CI/CD 🏢 Description: 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

🏢 Summary: Senior .NET Developer role focused on building and maintaining extended functionalities within a distributed, cloud-based system. The position involves working with modern .NET technologies, Angular, cloud platforms, and microservices architecture in an Agile/Scrum environment. The role requires close collaboration with stakeholders while applying clean code and best development practices. 🗂️ Requirements: Bachelor’s degree or Microsoft .NET certification, Strong experience with .NET and C#, Experience with ASP.NET Core and Web API, Experience with Angular (2+), Experience with Azure or AWS, Experience with microservices and distributed systems, Experience with PostgreSQL and SQL Server, Experience with database migrations, Experience with GitHub, Knowledge of SOLID and DRY principles, Fluent English (written and spoken) 📃 Skills: .NET, C#, ASP.NET, Angular, Azure, AWS, Microservices, Kafka, PostgreSQL, SQL, GitHub, WebAPI 🏢 Description: We are looking for a Senior .Net Developer . Responsibility: Develop and maintain extended functionalities Collaborate closely with internal and external consultants, as well as key business stakeholders Work with technologies including Angular (2+), Azure/AWS Cloud, and the .NET stack (.NET 8/9, ASP.NET Core, C#, Web API), along with microservices and distributed systems, Kafka (or similar messaging tools), and databases such as PostgreSQL and SQL Server Actively participate in daily stand-ups, sprint reviews, and planning sessions with Danish colleagues, contributing to continuous improvement of the Scrum process To succeed in this role, you: Hold a relevant bachelor’s degree or a Microsoft certification related to .NET Apply clean code principles and best practices such as SOLID and DRY, with a strong object-oriented mindset Have proven experience in Microsoft .NET (C#), GitHub, PostgreSQL, and database migrations Communicate fluently in English, both written and spoken

🏢 Summary: Java developer role focused on further development and modernization of a complex integration and data platform, including new development and migration to a newer platform. The position involves backend development with API integrations, test automation, and close collaboration on architecture and best practices. The assignment runs from July 2026 to June 2027 with full-time workload in Copenhagen. 🗂️ Requirements: Strong experience in Java backend development, Experience with automated unit and integration testing, Experience with CI/CD pipelines and build/deploy automation, Experience with code quality assurance practices, Understanding of DevOps principles, Experience working in structured operational and delivery setups 📃 Skills: Java, Backend, API, UnitTesting, IntegrationTesting, CI/CD, DevOps, Automation, Build, Deployment 🏢 Description: Vi søger stærke Java-udviklere til videreudvikling og modernisering af en kompleks integrations- og dataplatform. Opgaven spænder over nyudvikling, videreudvikling af eksisterende løsninger samt migrering til en nyere platform. Dine opgaver: - Analyse og udarbejdelse af løsningsforslag - Udvikling af funktionel og gennemtestet kode (primært backend – evt. fullstack afhængigt af profil), inkl. API-integrationer - Bidrage til udvikling af nye generiske moduler - Migrering af eksisterende funktionalitet til ny platform - Testautomatisering og komponenttest - Dokumentation - Samarbejde om arkitektur og best practices - Identificere og reducere teknisk gæld - Vidensdeling i teamet Vi forestiller os, at du har erfaring med: - Solid Java-baseret backend-udvikling - Automatiserede tests (unit- og integrationstest) - CI/CD pipelines og build/deploy automation - Kvalitetssikring af kode - DevOps-principper - Drift og leverancer i strukturerede setups Det er en fordel, hvis du har: - Erfaring med migrering mellem teknologiplatforme - Arbejdet i større, regulerede eller procesdrevne organisationer Startdato: 01.07.2026 Slutdato: 30.06.2027 Workload: 100%

🏢 Summary: Full-time 6-month onsite senior iOS consultant role focused on developing and maintaining a customer-facing app using modern iOS technologies. The consultant will work primarily with Swift and SwiftUI, contributing to performance optimization, async features, database integration, and API development. Onsite presence in Greater Copenhagen is required at least four days per week. 🗂️ Requirements: Minimum 5 years iOS development experience, Strong experience with Swift, Strong experience with SwiftUI, Experience with UIKit, Solid understanding of Async/await, Experience with iOS versions 16–26, Experience with Realm DB, Proficiency with Xcode 📃 Skills: Swift, SwiftUI, UIKit, iOS, Async/await, Realm, Xcode, APIs, GitHub, DevOps 🏢 Description: Introduktion og Resumé: Vi søger en erfaren iOS senior konsulent til en fuldtidsopgave over en periode på 6 måneder, med mulighed for forlængelse. Konsulenten vil spille en central rolle i udviklingen af kundeappen og skal kunne arbejde onsite minimum 4 dage om ugen i Storkøbenhavn, med mulighed for at arbejde remote de resterende dage. Vigtige færdigheder inkluderer erfaring med Swift , SwiftUI , og en dyb forståelse af iOS versioner fra 16 til 26. Primære Ansvarsområder: Udvikle og vedligeholde kundeappen ved hjælp af Swift og SwiftUI. Integrere Async/await funktionaliteter i appen. Implementere databaser ved hjælp af Realm DB. Brug af Xcode til at optimere applikationsydelse. Skabe åbne API'er til integration med andre systemer. Nøglekrav: Min. 5 års erfaring med iOS udvikling. Stærk erfaring med Swift og SwiftUI. Erfaring med UIkit teknologi. Solid forståelse for Async/await programmering. Erfaring med iOS versioner fra 16 til 26. Kendskab til Realm DB og Xcode. Ønskelige Kompetencer: Erfaring med DevOps-praksis. Kendskab til GitHub Actions.

🏢 Summary: Senior Java Developer role focused on building and maintaining secure, business-critical login and access management solutions for digital banking. The position involves developing next-generation authentication systems, integrating with third-party services and Curity identity server, and ensuring high code quality and security standards. Work is done in an agile environment with strong emphasis on architecture and secure software design. 🗂️ Requirements: Minimum 5 years experience in software development, Solid experience with Java, Experience with Quarkus framework, Understanding of microservices architecture, Knowledge of Domain Driven Design (DDD), Knowledge of Clean Architecture, Experience with Openshift or similar container platforms, DevOps experience, Experience with monitoring tools, Experience with system integrations and identity solutions, Experience with threat modeling and security practices, Relevant degree in software engineering or computer science 📃 Skills: Java, Quarkus, Microservices, DDD, CleanArchitecture, Openshift, DevOps, Monitoring, Curity, Security, Containers, Integration 🏢 Description: emagine søger lige nu en Java-udvikler Introduktion & Sammenfatning Som Senior Software Developer i denne stilling vil du spille en central rolle i at sikre sikker og stabil adgang til digitale bankløsninger. Du vil udvikle og vedligeholde forretningskritiske systemer, der styrer login for både bankkunder og bankmedarbejdere – samtidig med at du understøtter integrationer til eksterne finansielle tjenester. Vi arbejder agilt og har en god balance mellem faglig fordybelse og tæt sparring i hverdagen. Hovedansvarsområder I denne rolle vil du bidrage væsentligt til udviklingen af næste generations login-løsninger. Dine opgaver inkluderer: Udvikle og vedligeholde kritisk software med fokus på adgangsstyring og login. Arbejdet med integrationer til tredjepartsleverandører og vores partners identity server, Curity. Sikre høj kodekvalitet via Domain Driven Design og Clean Architecture. Indgå i trusselsmodellering og sikkerhedsarbejde omkring vores systemer. Deltage i teamets arkitektur- og udviklingsdiskussioner. Nøglekrav Solid erfaring med Java og frameworks som Quarkus. Forståelse for softwarearkitektur – især microservices, DDD og Clean Architecture. Kendskab til containerplatforme som Openshift. DevOps-erfaring – og gerne erfaring med monitoring. En relevant uddannelse (fx softwareingeniør eller datalog) og minimum 5 års erfaring. Nice to Have Færdigheder inden for agil udvikling. Erfaring med cloud-løsninger. Andre Detaljer Stillingen er beliggende i Silkeborg, og det forventes, at du er min. 3 dage onsite. Ansøgningsprocessen er løbende, og interviews finder sted mellem 26/5 og 3/6.

🏢 Summary: Full-time Lead/Senior Backend Developer role focused on building and operating distributed .NET-based systems in the pricing domain. The position involves end-to-end ownership of features, Infrastructure as Code, and continuous delivery within a multicultural, distributed setup. The assignment runs 7–9 months in Aarhus with flexibility, starting ASAP. 🗂️ Requirements: Strong experience with .NET, Experience with distributed systems, Experience with Infrastructure as Code, Experience with Kubernetes, Experience with Azure, Experience with PostgreSQL, Experience with Kafka, Experience with Helm, Experience with Terraform, Experience with Marten, Experience with Argo, Basic knowledge of React or similar frontend frameworks, Fluent English communication skills, Danish language proficiency 📃 Skills: .NET, Helm, Terraform, PostgreSQL, Marten, Kafka, Kubernetes, Azure, Argo, React 🏢 Description: emagine are seeking a skilled Lead Developer/Senior Backend Developer with strong experience in .NET frameworks to join our team in the pricing domain. The ideal candidate will possess extensive technical knowledge and demonstrate effective collaboration across multicultural teams. Main Responsibilities: As a Lead Developer, your main duties encompass: Solve tasks collaboratively through pair programming or mob programming sessions. Embrace cultural diversity within distributed teams across Denmark, Portugal, and India. Practice Continuous Delivery to ensure smooth deployments. Comfortable working in a complex domain with evolving requirements. Implement Infrastructure as Code ( IaC ) solutions. Adapt well to fast-changing environments and shifting priorities. Communicate effectively in English across distributed teams. Work with distributed systems and understand complex architectures . Take full ownership of features: “You build it, you run it” from development to production. Participate actively in refinement, planning, and retrospectives . Ensure stories meet Definition of Done , including testing and documentation. Collaborate with QA and other roles to maintain high quality standards . Key Requirements: Strong experience with .NET (9/10 proficiency). Helm . Terraform . PostgreSQL . Marten . Kafka . Kubernetes . Azure . Argo . Basic understanding of React or similar frontend frameworks for integration. Nice to Have: Experience with agile methodologies. Understanding of cloud-native design principles. Other Details: Start: ASAP Duration: 7-9 months Work load: Full time Location: Aarhus, with some flexibility Language: Danish and English

🏢 Summary: Senior Software Developer role focused on designing and developing advanced configuration solutions for the manufacturing industry, including AI-powered product discovery features. The position involves building scalable backend systems, enterprise front-end applications, and maintaining high code quality within an Agile, CI-driven environment. It is a full-time, long-term B2B contract with remote work and occasional on-site visits. 🗂️ Requirements: Master’s degree in Computer Science, Software Engineering or similar, 8+ years of software engineering experience, Strong expertise in C#, Strong expertise in .NET, Experience with React, Experience with JavaScript, Experience building scalable backend systems, Experience with performance optimization or large data sets, Experience with unit testing and integration testing, Experience with continuous integration, Ability to work independently and take ownership 📃 Skills: C#, .NET, React, JavaScript, Azure, AI, CI, UnitTesting, IntegrationTesting 🏢 Description: Client : Danish configuration solutions for the manufacturing industry Contract : B2B Work model: Remote with occasional trips to the client's premises Contract Length : 3-year contract with possibility of extensions Workload : full-time Summary: The Senior Software Developer role in the team is crucial for designing and developing sophisticated configuration solutions aimed at enhancing customer value through innovative software features. Main Responsibilities: Be part of designing, implementing and maintaining our standard products Understand how products are used and applied to create value for customers Development of new customer features Design and implement unit test and integration test of own code modules Design and implement AI-powered product discovery and conversational solutions leveraging agentic AI technology Participate in the development and maintenance of the teams’ continuous integration Code reviews and retrospective learning processes Maintenance, troubleshooting, and continuous improvement of existing software Participate in the creation and evolution of development processes and coding standards Key Requirements: A Master’s degree in Computer Science, Software Engineering or similar. 8+ years of software engineering experience Strong expertise in C# and .NET Experience with front-end development for enterprise software (React and JavaScript). Experience with performance optimization or large data sets Solid experience building scalable backend systems Strong focus on code quality, testing, and reliability Ability to drive work independently and take full ownership Nice to Have: Experience with Azure or other cloud platforms Background in enterprise software (ERP, CPQ, or similar domains) Experience integrating agentic AI into enterprise software solutions. Other Details: The position is based in a cross-functional team collaborating with Product Management and QA, within an Agile development environment with continuous integration practices.

🏢 Summary: Senior Software Engineer role focused on developing and maintaining a complex enterprise .NET platform, combining backend development, production troubleshooting, and performance optimization. The position involves working on identity-related systems and improving architecture, reliability, and code quality within a large-scale environment. The engineer will contribute to technical decisions and future platform evolution. 🗂️ Requirements: 5+ years commercial experience with C# and .NET, Strong knowledge of ASP.NET Core, Experience with asynchronous programming, Experience with dependency injection, Hands-on experience with Entity Framework Core, Strong understanding of SQL Server, Experience with query optimization, Experience with OAuth2, Experience with OpenID Connect, Experience with JWT, Experience supporting and troubleshooting production systems, Fluent English 📃 Skills: C#, .NET, ASP.NET, EntityFramework, SQLServer, OAuth2, OpenIDConnect, JWT, IdentityServer, Duende, ActiveDirectory, AzureAD, MicrosoftGraph, Quartz.NET, SignalR, Playwright, AzureDevOps, CI/CD 🏢 Description: We are looking for an experienced Senior Software Engineer to develop and maintain a complex enterprise .NET platform used by global organizations. This role combines backend development , production troubleshooting , performance optimization , and work on identity-related systems . 💼 Responsibilities: Design, develop, and maintain backend services built with C# and .NET Investigate and resolve complex production issues and customer-reported problems Optimize application performance, database queries, and system reliability Collaborate with Product, Support, and Engineering teams on technical solutions Improve architecture, code quality, and engineering standards Participate in technical discussions and contribute to future platform development ✅ Requirements: 5+ years of commercial experience with C# and .NET Strong knowledge of ASP.NET Core and modern .NET applications Experience with asynchronous programming and dependency injection Hands-on experience with Entity Framework Core Good understanding of SQL Server, query optimization, and database performance Experience with OAuth2, OpenID Connect, JWT Experience supporting and troubleshooting production systems Fluent English communication skills 🌟Nice to have: Experience with IdentityServer / Duende IdentityServer Understanding of Active Directory, Azure AD or Microsoft Graph Hands-on experience with Quartz.NET or similar scheduling frameworks Familiarity with SignalR, Playwright, Azure DevOps and CI/CD pipelines 🎁 We offer: Work on a mature enterprise product used globally Influence technical decisions and platform evolution Private healthcare Life insurance Multisport Opportunity to work with modern .NET technologies and large-scale systems