{"schemaVersion":"jobsearcher.job.v1","id":"102d2e2f22d51dca8442a170","url":"https://jobsearcher.com/jobs/102d2e2f22d51dca8442a170","canonicalUrl":"https://jobsearcher.com/jobs/102d2e2f22d51dca8442a170","title":"Senior Web Developer","description":"*Overview*\n\n_*Onsite Only in Radnor, PA*_ - _*No Sponsorship at this time. No Remote Available. *_\n\nWe are seeking a highly skilled and energetic Senior Web Developer Contract to Permanent to join our dynamic development team. Join a team responsible for 100+ applications serving ~1,500 mortgage lending customers nationwide. You'll design cloud architecture, build modern APIs, and modernize legacy systems — roughly 50/50 new development vs. maintenance. Weekend deployments 1–2 times per month.\n\n*What we are looking for: *\n\n*1. AWS Cloud Architecture*\n\n* Design and implement scalable, secure, highly available solutions in AWS\n\n*2. C# / .NET Development*\n\n* 8+ years in C#, ASP.NET Core, .NET Framework 4.8, Web API\n* Build and maintain RESTful APIs, microservices, and background services\n* Comfortable across both modern .NET Core and legacy ASP.NET MVC codebases\n\n*3. Design & Architecture*\n\n* Design and implement scalable, secure, and highly available AWS cloud solutions.\n* Define cloud architecture standards, best practices, and governance.\n* Lead application modernization and cloud migration initiatives.\n\n*Additional Skills: *\n\n* *Authentication:* OAuth 2.0, OIDC, JWT, SSO (Okta)\n* *Databases:* Oracle (90% of our data) and PostgreSQL (new work) — stored procedures, performance tuning\n* *Frontend:* HTML, CSS, JavaScript; ability to work in React or Next.js\n* *CI/CD:* Azure DevOps pipelines\n* *Production support:* Troubleshoot issues, root cause analysis, on-call comfort\n\nPay: $120,000.00 - $125,000.00 per year\n\nBenefits:\n* 401(k)\n* Dental insurance\n* Health insurance\n* Vision insurance\n\nWork Location: In person","company":"Core Techs","rawCompany":"core techs","city":"Radnor","state":"PA","isRemote":false,"isActive":false,"createdAt":"2026-09-01T10:45:10.867Z","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":"Senior Web Developer","description":"*Overview*\n\n_*Onsite Only in Radnor, PA*_ - _*No Sponsorship at this time. No Remote Available. *_\n\nWe are seeking a highly skilled and energetic Senior Web Developer Contract to Permanent to join our dynamic development team. Join a team responsible for 100+ applications serving ~1,500 mortgage lending customers nationwide. You'll design cloud architecture, build modern APIs, and modernize legacy systems — roughly 50/50 new development vs. maintenance. Weekend deployments 1–2 times per month.\n\n*What we are looking for: *\n\n*1. AWS Cloud Architecture*\n\n* Design and implement scalable, secure, highly available solutions in AWS\n\n*2. C# / .NET Development*\n\n* 8+ years in C#, ASP.NET Core, .NET Framework 4.8, Web API\n* Build and maintain RESTful APIs, microservices, and background services\n* Comfortable across both modern .NET Core and legacy ASP.NET MVC codebases\n\n*3. Design & Architecture*\n\n* Design and implement scalable, secure, and highly available AWS cloud solutions.\n* Define cloud architecture standards, best practices, and governance.\n* Lead application modernization and cloud migration initiatives.\n\n*Additional Skills: *\n\n* *Authentication:* OAuth 2.0, OIDC, JWT, SSO (Okta)\n* *Databases:* Oracle (90% of our data) and PostgreSQL (new work) — stored procedures, performance tuning\n* *Frontend:* HTML, CSS, JavaScript; ability to work in React or Next.js\n* *CI/CD:* Azure DevOps pipelines\n* *Production support:* Troubleshoot issues, root cause analysis, on-call comfort\n\nPay: $120,000.00 - $125,000.00 per year\n\nBenefits:\n* 401(k)\n* Dental insurance\n* Health insurance\n* Vision insurance\n\nWork Location: In person","datePosted":"2026-09-01T10:45:10.867Z","dateModified":"2026-09-01T10:45:10.867Z","hiringOrganization":{"@type":"Organization","name":"Core Techs","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Radnor","addressRegion":"PA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"102d2e2f22d51dca8442a170"},"url":"https://jobsearcher.com/jobs/102d2e2f22d51dca8442a170"}}