{"id":914453,"url":"https://alion.io/job/twoday-oy-senior-net-developer-microservices-integrations","title":"Senior .NET Developer - Microservices & Integrations","company":{"id":617070,"name":"Twoday Oy","domain":"beanbakers.fi","url":"https://alion.io/company/beanbakers","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"B","score":75,"open_postings":8,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":30,"computed_at":"2026-10-01T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Copenhagen, Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":63000,"max_usd":174000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":4821},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AI Agents","optional":false},{"name":"Azure DevOps","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Rest API","optional":false},{"name":"Azure","optional":true}],"status":"live","first_seen_at":"2026-09-04T14:16:14Z","employer_posted_date":"2026-09-04","last_verified_at":"2026-09-30T16:32:41Z","board_verified":true,"closed_at":null,"days_open":27,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":27},"description":"Twoday is the leading digital transformation partner in Northern Europe with a global presence. With approximately 3,000 specialists, we collaborate with some of the most admired private and public organisations to deliver cutting-edge digital solutions. Our expertise spans software engineering, Data & AI, cloud platforms, digital experiences and business applications.\nWe are now looking for a Senior Platform Engineer to help transform a large-scale development and deployment platform from traditional DevOps into a modern AI-assisted and agentic engineering setup.\nPermanent position at Twoday | Copenhagen\nSenior .NET Developer - Microservices & Integrations\nAre you an experienced .NET developer with strong integration skills and the confidence to advise customers on technical solutions? Do you understand how complex systems interact - and can you take responsibility from initial clarification through design and implementation?\nThen you may be the Senior .NET Developer we are looking for.\nYour role\nYou will join Twoday as a permanent employee, with your first assignment being with a major Danish public-sector organisation.\nYou will work in a complex system landscape involving microservices, APIs and integrations between several business-critical solutions. The role requires more than strong development skills: you must also be able to understand technical dependencies, challenge proposed solutions and communicate your recommendations clearly to both technical and non-technical stakeholders.\nYou will work independently while collaborating closely with the customer, external delivery partners, architects and developers.\nYour responsibilities will include:\nDeveloping and maintaining solutions in C# and .NET\n\nDesigning and implementing microservices, APIs and integrations\n\nWorking with RabbitMQ and message-based communication\n\nEnsuring robust error handling, logging, monitoring and traceability\n\nUnderstanding system landscapes, dependencies and technical constraints\n\nReviewing technical proposals and advising the customer on appropriate solutions\n\nDriving technical clarifications across systems and stakeholders\n\nTaking responsibility from solution design through implementation and release\n\nContributing constructively to architecture and solution discussions\n\nDeveloping and maintaining automated tests\n\nSupporting CI/CD pipelines and delivery processes in Azure DevOps\n\nProducing clear and useful technical documentation\n\nUsing AI-assisted development tools to increase delivery speed and quality\n\nWhat you bring\nWe expect you to have solid professional experience with .NET development - typically around five years or more - combined with sufficient technical maturity to work independently in a complex customer environment.\nYou have experience with several of the following:\nC# and modern .NET\n\nMicroservices and distributed systems\n\nREST APIs and system integrations\n\nRabbitMQ or comparable messaging technologies\n\nError handling and resilient integration patterns\n\nAutomated testing\n\nAzure DevOps and CI/CD\n\nLogging, monitoring and traceability\n\nTechnical documentation\n\nAI-assisted software development\n\nExperience from complex enterprise or public-sector system landscapes will be an advantage.\nYour way of working\nYou combine hands-on development skills with a broad understanding of how systems and organisations connect. You can identify dependencies and limitations, ask the right questions and drive technical clarifications until a workable solution has been established.\nYou are confident in customer-facing situations and able to explain technical matters clearly. You are also comfortable assessing recommendations from external delivery partners and providing the customer with an independent technical perspective.\nYou work proactively, take ownership and follow your tasks through from design to implementation. At the same time, you understand the importance of documentation, operational stability and constructive collaboration.\nThe customer works at a high pace and expects AI tools to be an active part of the development process. You must therefore be willing and able to use AI-assisted tools effectively while maintaining responsibility for the quality, security and correctness of your work.\nFluency in Danish, both verbally and in writing, is required. You must also be able to work onsite at the customer’s office in Copenhagen when needed.\nTwoday offers\nA permanent position in one of the Nordic region’s leading technology companies\n\nA technically challenging first assignment with significant responsibility\n\nThe opportunity to work on business-critical solutions with clear societal value\n\nSkilled colleagues and strong professional communities\n\nOpportunities to develop your technical and advisory capabilities\n\nAbout Twoday\nTwoday operates from modern offices across 30 locations in Norway, Sweden, Denmark, Finland, and Lithuania. We have a strong and unique social environment with highly engaged employees. If you are the candidate we are looking for, you will play a central role with exciting opportunities to grow within an international and innovative group, working on cutting-edge technology and software solutions. You will also have the flexibility to occasionally work from one of our main offices in Oslo, Stockholm, Copenhagen, Helsinki or Vilnius.\nDiversity & inclusion\nDo you not meet all the requirements? Studies show that women and minorities are less likely to apply for a job if they don’t meet every qualification. At Twoday, we are committed to building a workplace and community where everyone is welcome. If you are excited about this role but your previous experience doesn’t perfectly align with the job description, we still encourage you to apply.","description_format":"text","description_chars":5748,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Danish","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Custom Software Development","AI Consulting & Integration"],"lifecycle":[{"event":"open","at":"2026-09-14T19:00:35Z"}],"liveness":{"score":57,"band":"ok","label":"Likely open","p_open":1,"p_active":0.755,"p_room":0.75,"age_days":26,"expected_fill_days":30,"reasons":["conf:13","velocity","win:late"],"computed_at":"2026-10-01T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/twoday-oy-senior-net-developer-microservices-integrations","json_url":"https://alion.io/job/twoday-oy-senior-net-developer-microservices-integrations.json","meta":{"generated_at":"2026-10-01T20:01:19Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2736,"day_limit":5000,"remaining_today":2264,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}