Top .NET Developer Jobs in Austin, TX

Senior .NET full-stack developer responsible for custom application development, API integrations, database optimization, deployments, troubleshooting, performance, security, and production support using .NET/C#, ASP.NET Core, SQL, modern frontend frameworks, cloud, and CI/CD.

Develop and implement secure ASP.NET web applications while collaborating with analysts for design updates. Ensure compliance with security and accessibility standards.

Contract remote .NET/Kentico web developer to build interactive, dynamic websites. Requires front-end web development experience and familiarity with the Kentico CMS. Six-week engagement.

Design, develop, test, and deploy .NET solutions (APIs and web apps). Build and consume RESTful services, work with SQL and NoSQL databases, use cloud (Azure/AWS) and Docker, apply unit/integration/performance testing, participate in code reviews, define features via spikes, and architect scalable, high-performance systems. Support occasional after-hours and on-call rotation.

Seeking a Senior .Net Developer with at least 5 years experience in Microsoft technologies for an urgent role with a top insurance company.

Develop, maintain, and optimize backend services and RESTful APIs using Node.js, Java, or .NET. Integrate with databases and third-party services, collaborate with cross-functional teams, participate in code reviews, and ensure performance, reliability, and security in an Agile environment.

The Back End Software Engineer will design and build scalable services for a SaaS platform, collaborate with teams, and contribute to quality code and architecture discussions.

Design, build, and maintain scalable web applications for payroll and accounting. Collaborate with engineers and product partners, write tested code, participate in code reviews, contribute to architecture, improve CI/CD and monitoring, support production (including on-call), and communicate progress while continuously learning.

Expert-level full‑stack .NET engineer who designs, develops, tests, and supports secure, scalable enterprise applications. Leads large projects, authors technical specs, mentors engineers, enforces SDLC and security/audit requirements, participates in Agile/Scrum, and drives technical strategy and innovation. Availability for occasional travel and on-call support is required.

Architect, develop, test, and operate .NET (C#) back-end services and RESTful APIs for a multi-tenant SaaS identity platform. Design and maintain SQL Server data layer, contribute to Azure-hosted deployments and CI/CD pipelines, perform code/design reviews, mentor peers, and collaborate with product, architecture, and DevOps teams.

The Integration Developer supports and maintains Rhapsody and .NET applications, automates workflows, and modernizes legacy systems for public health data exchange.

The Senior Full Stack .NET Engineer designs and maintains software systems, manages API integrations, and works closely with cross-functional teams to improve internal platforms and resolve production issues.

Remote junior .NET developer to design, build, integrate, deploy, and provide production support for web applications serving housing programs. Responsibilities include data/business analysis, developing reports, QA testing, writing documentation and user guides, gathering requirements, creating mock-ups, and configuring application deployments.

Develop modern applications using .NET/.NET Core with Database/SQL and Azure. Work remotely, troubleshoot proactively, and contribute to a distributed digital-nomad developer community.

Develop and maintain InfoTrack's cloud-based web solution: build backend C#/.NET services, integrate third-party SOAP/REST APIs, design databases, implement full-stack features (React/JS), follow microservices patterns, write tests, collaborate in Agile teams, and recommend product and usability improvements.

The Senior .NET Developer will work on developing and maintaining applications, mentor junior developers, and ensure compliance with regulations. The role requires expertise in full-stack development, particularly with SQL Server databases and Azure.

The C# / .NET Developer will design and maintain middleware applications, build Shopify integrations, and support a mobile app backend in a remote work environment.

Build and maintain scalable, cloud-native APIs using .NET. Enhance core platform components, lead architecture and testing discussions, optimize telemetry and performance, collaborate cross-functionally, conduct code reviews, and mentor team members.

Seeking a Senior Software Engineer to design and implement multimedia data systems using C# and .NET Core. Responsibilities involve developing high-performance applications, collaborating with teams, and driving engineering excellence in an Agile environment.

Build and maintain web-based e-commerce applications using C#/.NET and ASP.NET MVC. Work in Visual Studio with Git, unit and integration testing, and a build server. Collaborate with the development team to design and implement features, ensure code quality, and support company growth. Preferred experience includes .NET Core, Web API, JavaScript frameworks, ORMs, and MAUI.

The Senior .Net Developer will enhance SDG's C#/.NET Core codebase, design high-load services, and optimize MS SQL queries, benefiting from a remote work environment and attractive benefits.

As a Senior Software Engineer at PerfectServe, you'll design, build, and maintain high-quality code for healthcare communication systems, mentoring junior engineers and collaborating across teams to improve patient care and clinical workflows.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

Develop, test, deploy, and maintain .NET-centric web applications using C#, Angular 17+, and Azure. Build and consume REST APIs, work with SQL Server, source control, CI/CD pipelines, and collaborate on code reviews, debugging, performance optimization, and third-party integrations.

Develop and maintain scalable software solutions, mentor developers, and integrate AI tools. Collaborate on technical solutions aligned with business goals.