Work Mode: Freelance / Part-timeLocation: RemoteCooperation Model: Flexible (standby / on-call duties)We are looking for a .NET Developer to support second-line support (2nd line) in one of our projects. The role is based on an on-call / standby model, with schedules planned in advance together with the team.Tickets are assigned after initial analysis on the client’s side – this is not 1st line support nor a call center. The team consists of developers and a coordinator (PM).Project24/7 on-call dutyResponsibilitiesHandling service requests (2nd line support)Analyzing and diagnosing issues in .NET applicationsBug fixing in existing codebasesWorking with REST APIsCollaboration with other developers (backend, frontend, mobile)Testing the correctness of implemented fixesDirect communication with the client regarding reported issuesWork ModelNo fixed number of working hoursFlexible model based on rotational on-call dutiesOn-call schedules planned in advance together with youClear communication of availability and ticket acceptance is essentialCompensationStandby / On-call:180 PLN per weekday (24h)250 PLN per weekend day (24h)➕ Hourly rate for actual work performedRequirementsMin. 3years of experience in .NET backend developmentGood proficiency in C#, ASP.NET Core API, and Entity Framework CoreExperience with SQL Server, Docker, and RedisFamiliarity with asynchronous communication (RabbitMQ or similar)Experience with unit testing frameworks (xUnit or similar)Strong problem-solving skills and focus on performance and scalabilityAvailability for on-call workNice to HaveExperience in 2nd / 3rd line supportExperience with high-availability systems (SLA, on-call)Knowledge of monitoring and logging toolsExperience in direct communication with clientsWe value your trust in providing us your data, thus we are striving to use commercially acceptable means of protecting it. Below you will find the necessary information about the data we collect and process when you send us your CV.The controller of your personal data is Miquido Spółka z ograniczoną odpowiedzialnością sp. k. with its seat in Krakow, Zabłocie 43a, 30-701 Kraków, Poland (“Miquido”, “We”, “Our” or “Us”). See more