{"id":3588029,"url":"https://alion.io/job/easysoftgroup-senior-net-engineer","title":"Senior .Net Engineer","company":{"id":4449252,"name":"EasySoftGroup","domain":"easysoftgroup.com","url":"https://alion.io/company/easysoftgroup","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kraków, 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solutions in a fast-paced, agile environment.\nKey Responsibilities\nDesign, develop, and maintain scalable backend services using C# and .NET (6+)\nBuild and optimise RESTful APIs to support modern frontend applications\nArchitect and implement microservices-based systems with a focus on modularity and resilience\nDevelop and deploy solutions leveraging AWS cloud services\nEnsure systems are highly available, secure, and performant\nCollaborate with frontend engineers to ensure smooth API integration and performance\nPartner with product and design teams to translate business requirements into technical solutions\nParticipate in architecture discussions, code reviews, and agile ceremonies\nWrite clean, maintainable, and well-tested code following industry best practices\nImplement automated testing strategies (unit, integration, end-to-end)\nIdentify and reduce technical debt, improving long-term system sustainability\nMonitor and improve system performance, reliability, and scalability\nStay current with emerging technologies and contribute to continuous improvement initiatives\nRequired Qualifications\n5+ years of experience in backend software engineering (web or SaaS environments)\nStrong proficiency in C#, .NET, ASP.NET Core\nExperience building and maintaining web-based applications and APIs\nSolid understanding of distributed systems and cloud-native architecture\nHands-on experience with AWS\nExperience designing and implementing event-driven systems\nStrong knowledge of relational databases (e.g., SQL Server) and ORM tools (e.g., Entity Framework)\nPreferred Qualifications\nExperience with AWS services such as Lambda, API Gateway, DynamoDB, and Elasticsearch\nFamiliarity with Infrastructure as Code (e.g., Terraform)\nExperience with CI/CD pipelines (e.g., GitHub Actions, TeamCity)\nKnowledge of containerisation and orchestration (Docker, Kubernetes)\nExposure to serverless architectures\nExperience supporting backend systems for modern frontend frameworks (e.g., React)\nFamiliarity with observability and monitoring tools\nSoft Skills\nStrong communication skills and ability to collaborate across distributed teams\nProactive mindset with a strong sense of ownership and accountability\nAbility to prioritise effectively and deliver results under time constraints\nAnalytical problem-solving skills with attention to detail\nCustomer-focused approach to building reliable and user-centric systems\nWhat We Offer\nOpportunity to work on large-scale, globally distributed systems\nCollaborative and international engineering environment\nCompetitive salary and benefits package\nFlexible hybrid working model\nCareer growth opportunities and support for continuous learning\nInterested? 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