Senior Dotnet Developer

Lead .NET Developer/Architect Location: Oak Brook, Illinois (Hybrid, onsite Tuesday, Wednesday, Thursday)Duration: Contract-to-Hire Our client, a well-established, family-owned organization specializing in transportation, logistics, and rail services, is seeking a Lead .NET Developer/Architect to join their dynamic team. Known for its supportive, collaborative culture, and recognized as one of the best places to work in Chicago, this company offers an environment where individuals can thrive and grow. This opportunity is part of a team expansion driven by a high-priority initiative to design and build a new solution to replace an existing rail application.This role requires strong technical expertise in .NET, C#, Angular, and related Microsoft technologies, along with experience using Azure DevOps (ADO) for pipelines, CI/CD, and release management. The ideal candidate will also bring solid architecture experience and be comfortable contributing to the planning and execution of a system rewrite.We're looking for someone with demonstrated leadership skills who can effectively translate complex technical concepts for non-technical stakeholders and serve as a key liaison between business and technology teams.The ideal candidate will function as a Lead Developer / Architect, with strong hands-on expertise in: Microsoft technologies (.NET, C#, Azure)Angular Azure DevOps (ADO) Modern AI-assisted development tools (e.g., Cursor, Claude) Key Skills & ExpertiseAnalytical & Design ThinkingDemonstrated ability to lead end-to-end solution designTranslate complex business challenges into scalable, high-performance architecturesMicrosoft Visual StudioExpert-level proficiency in Visual Studio and related toolsStrong debugging, performance tuning, and workflow optimization skillsMicrosoft Stack (.NET / C#)Extensive experience with C# and .NET CoreDeep understanding of SOLID principles, dependency injection, and domain-driven designAbility to build modular, scalable, and maintainable systemsAzure Cloud ServicesExperience designing and managing cloud-native solutions using Azure (App Services, Functions, Key Vault, Azure SQL, DevOps)Focus on security, scalability, and cost optimizationFront-End Development (Angular)Strong experience with Angular and modern front-end frameworksAbility to design UI architecture and integrate complex APIsFocus on performance and user experienceSQL & Data AccessStrong background in relational database design and query optimizationExperience with Entity Framework Core and enterprise data modelingCore ResponsibilitiesDesign, develop, test, and maintain software solutions aligned with business needsParticipate in Agile ceremonies (stand-ups, sprint planning, retrospectives)Contribute to architectural discussions and long-term technology strategyEnhance and support existing applicationsFollow change management and deployment processesManage source code using version control toolsApply development best practices and organizational standardsCollaborate with QA, Project Managers, and Business Analysts to deliver high-quality solutionsSenior-Level ResponsibilitiesDesign and implement secure, scalable, high-performance applicationsLead projects or major modules from concept through deliveryProvide technical leadership and influence architectural decisionsMentor and guide Junior and Mid-Level DevelopersConduct code reviews to ensure quality and adherence to best practices to maintain code quality and promote best practices.You will receive the following benefits:Medical Insurance - Four medical plans to choose from for you and your familyDental & Orthodontia BenefitsVision BenefitsHealth Savings Account (HSA)Health and Dependent Care Flexible Spending AccountsVoluntary Life Insurance, Long-Term & Short-Term Disability InsuranceHospital Indemnity Insurance401(k)Paid Sick Time LeaveLegal and Identity Protection PlansPre-tax Commuter Benefit529 College Saver PlanMotion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP's Employment Accommodation policy. Applicants need to make their needs known in advance.

Created: 2026-05-16