{"schemaVersion":"jobsearcher.job.v1","id":"4979fd1ca8ac2db6850a4a18","url":"https://jobsearcher.com/jobs/4979fd1ca8ac2db6850a4a18","canonicalUrl":"https://jobsearcher.com/jobs/4979fd1ca8ac2db6850a4a18","title":"Software Developer (Full Stack – .NET)","description":"Software Developer (Full Stack – .NET)Location: Bannockburn, IL (Onsite with hybrid potential after 90 days) Employment Type: Evaluation-to-Hire Salary Range: $95,000 – $105,000 (based on experience)We are seeking a motivated and versatile Full Stack Software Developer to join our client's Internal Applications team. This role is ideal for someone who thrives in both maintaining legacy systems and contributing to modern platform development.You will play a key role in supporting and enhancing their existing e-commerce platform while helping design and build a next-generation, headless commerce solution. This position offers a unique opportunity to work across a wide technology stack in a collaborative and fast-paced environment.ResponsibilitiesE-Commerce PlatformMaintain, troubleshoot, and enhance the current e-commerce platform (C#, ASP.NET, XSLT, skins/templates)Develop new functionality and integrationsSupport and improve custom product configurator (KitBuilder)Participate in planning and building a modern, headless e-commerce platformSoftware DevelopmentDesign and develop responsive web applications aligned with business needsCollaborate with stakeholders to translate business requirements into technical solutionsWork cross-functionally with integration developers and designersEnsure consistency in UI/UX and branding across applicationsIntegrations & SystemsBuild and maintain integrations with third-party systems (ERP, WMS, APIs, payment gateways)Participate in architecture and system design discussionsCreate and maintain technical documentationSupport & TrainingDiagnose and resolve application issues for end usersProvide documentation and training to support system adoptionQualificationsBachelor's degree in Computer Science or related field3+ years of software development experienceStrong experience working in C# and.NET environments (REQUIRED)Ability to work within and maintain legacy systems without full rewritesStrong analytical, problem-solving, and communication skillsSelf-starter with the ability to learn new systems independentlyRequired Technical SkillsBackendC#, ASP.NET (MVC & Web Forms)REST API development and integrationService-Oriented Architecture (SOA)VB.NET (nice to have)FrontendHTML, CSS, JavaScript (REQUIRED)jQuery, AJAX, BootstrapExperience with modern frameworks (React, Vue, Next.js) is a plusDatabaseSQL Server (queries, stored procedures, performance tuning)Tools & PracticesVisual Studio, Git, Azure DevOpsAgile development methodologiesCI/CD pipelines and debugging practicesRole Breakdown75% Legacy system maintenance and enhancements25% Modern platform development (headless commerce initiative)","company":"Express Employment Professionals","rawCompany":"express employment professionals","city":"Deerfield","state":"IL","isRemote":false,"isActive":true,"createdAt":"2026-09-11T06:17:09.689Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Developer (Full Stack – .NET)","description":"Software Developer (Full Stack – .NET)Location: Bannockburn, IL (Onsite with hybrid potential after 90 days) Employment Type: Evaluation-to-Hire Salary Range: $95,000 – $105,000 (based on experience)We are seeking a motivated and versatile Full Stack Software Developer to join our client's Internal Applications team. This role is ideal for someone who thrives in both maintaining legacy systems and contributing to modern platform development.You will play a key role in supporting and enhancing their existing e-commerce platform while helping design and build a next-generation, headless commerce solution. This position offers a unique opportunity to work across a wide technology stack in a collaborative and fast-paced environment.ResponsibilitiesE-Commerce PlatformMaintain, troubleshoot, and enhance the current e-commerce platform (C#, ASP.NET, XSLT, skins/templates)Develop new functionality and integrationsSupport and improve custom product configurator (KitBuilder)Participate in planning and building a modern, headless e-commerce platformSoftware DevelopmentDesign and develop responsive web applications aligned with business needsCollaborate with stakeholders to translate business requirements into technical solutionsWork cross-functionally with integration developers and designersEnsure consistency in UI/UX and branding across applicationsIntegrations & SystemsBuild and maintain integrations with third-party systems (ERP, WMS, APIs, payment gateways)Participate in architecture and system design discussionsCreate and maintain technical documentationSupport & TrainingDiagnose and resolve application issues for end usersProvide documentation and training to support system adoptionQualificationsBachelor's degree in Computer Science or related field3+ years of software development experienceStrong experience working in C# and.NET environments (REQUIRED)Ability to work within and maintain legacy systems without full rewritesStrong analytical, problem-solving, and communication skillsSelf-starter with the ability to learn new systems independentlyRequired Technical SkillsBackendC#, ASP.NET (MVC & Web Forms)REST API development and integrationService-Oriented Architecture (SOA)VB.NET (nice to have)FrontendHTML, CSS, JavaScript (REQUIRED)jQuery, AJAX, BootstrapExperience with modern frameworks (React, Vue, Next.js) is a plusDatabaseSQL Server (queries, stored procedures, performance tuning)Tools & PracticesVisual Studio, Git, Azure DevOpsAgile development methodologiesCI/CD pipelines and debugging practicesRole Breakdown75% Legacy system maintenance and enhancements25% Modern platform development (headless commerce initiative)","datePosted":"2026-09-11T06:17:09.689Z","dateModified":"2026-09-11T06:17:09.689Z","hiringOrganization":{"@type":"Organization","name":"Express Employment Professionals","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Deerfield","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"4979fd1ca8ac2db6850a4a18"},"url":"https://jobsearcher.com/jobs/4979fd1ca8ac2db6850a4a18"}}