Top Remote .NET Developer Jobs

Develop scalable full-stack applications, APIs, services, and responsive user experiences using .NET and React. Collaborate with architects, designers, product managers, and engineers throughout the product lifecycle. Participate in technical design, architecture, code reviews, automated testing, documentation, deployment, and continuous improvement while ensuring security, performance, scalability, reliability, and maintainability. Work within an Agile, DevOps-oriented team and contribute to observability, integrations, and peer coaching.

Own and evolve Swyfft’s partner-facing insurance API, including resource design, versioning, backward compatibility, authentication, rate limiting, error handling, metrics, documentation, and contract testing. Build production C# code, maintain the translation layer between public APIs and internal systems, support partner integrations, and collaborate with QA and product. The role requires substantial public API experience, strong API security and multi-tenancy knowledge, and fluency in C#, ASP.NET Core, SQL Server, and Azure.

Designs, develops, maintains, and troubleshoots scalable software applications using .NET, SQL Server, UI frameworks, and cloud technologies. Collaborates with product owners, developers, testers, and technology leads; participates in code reviews; writes documented code; and improves software development practices.

Develop and maintain C# and .NET software using object-oriented design, testing, CI/CD, automation, and modern engineering practices. Analyze requirements, troubleshoot complex applications, participate in Scrum ceremonies, conduct code reviews, document technical solutions, and contribute to distributed systems, REST services, microservices, containerization, and AI-enabled projects. Provide technical guidance, collaborate across teams, and continuously improve development processes.

Build and support complex features across C#/.NET back-end services and React front ends. Responsibilities include technical design, API and data modeling, secure and tested coding, production troubleshooting, code reviews, mentoring, documentation, and improving engineering practices. Collaborate with Product, QA, DevOps, Technical Leads, and architecture teams while balancing delivery, maintainability, performance, accessibility, observability, and security.

Develop, test, maintain, and support secure, scalable full-stack .NET applications in an Agile/Scrum environment. Responsibilities include API and database development, technical documentation, code and design reviews, SDLC compliance, security and audit adherence, collaboration with architects and business partners, mentoring junior engineers, leading project delivery, and participating in on-call support and occasional travel.

Develop and maintain secure C#/.NET applications and data integration solutions supporting VA healthcare modernization. Responsibilities include database and API development, troubleshooting, testing, performance optimization, Agile collaboration, CI/CD, application security, production support, and technical documentation. The role also evaluates AI-assisted development tools and LLM integrations for code generation, testing, data mapping, and migration workflows.

Develop and maintain secure C#/.NET applications and data integration solutions for a federal healthcare modernization project. Responsibilities include database development, REST/SOAP services, troubleshooting, testing, performance optimization, application security, deployment support, Agile collaboration, and documentation. The role also evaluates AI-assisted development and LLM integrations for code generation, testing, data mapping, and migration workflows. Candidates must support remote multidisciplinary teams and be eligible for a Public Trust clearance.

Develop and modernize legacy web applications by remediating security vulnerabilities, migrating systems to .NET 8+ on AWS, and applying secure coding standards. Responsibilities include refactoring applications, resolving defects, developing and deploying web services, addressing penetration-test and automated-scan findings, and supporting phased deployments. The role requires strong C#, VB.NET, and VB6 experience, relational database knowledge, fluent English, and availability during US time zones.

Design, develop, and maintain cloud-based software using .NET and C#. Collaborate with international teams throughout the software development lifecycle, including architecture, coding, testing, deployment, feature development, and bug fixes. Apply clean-code principles and pragmatic design practices. Support containerized deployments with Docker and Kubernetes, and coordinate effectively across multisite development teams.

Leads architecture and development of complex backend services for a commercial health plan platform. Designs .NET Core and Azure systems, develops claims, eligibility, and benefits functionality, manages healthcare data integrations, and owns cloud infrastructure and CI/CD architecture. Provides technical leadership through code reviews, testing standards, mentoring, and architecture decisions while ensuring performance, reliability, security, and regulatory compliance.

Develop and optimize Microsoft .NET applications, legacy systems, and microservices with a focus on performance, scalability, reliability, and observability. Responsibilities include code reviews, performance testing, CI/CD integration, architecture and sprint delivery, legacy code and SQL tuning, cloud application deployment on Azure, automated testing, and resolving customer issues. The developer collaborates with architects, QA, technical support, and cross-functional teams using SAFe Agile practices.

Develop and maintain legacy VB.NET ERP and modern SaaS applications using C#, .NET, Angular, and SQL Server. Build RESTful APIs and integrations, optimize database performance, troubleshoot production issues, modernize legacy functionality, and use AI coding agents for development, refactoring, testing, and debugging. Collaborate remotely with product, development, and QA teams while ensuring code quality, security, performance, and maintainability.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Senior .NET Web App Developer responsible for designing and building .NET web applications, implementing Oracle PL/SQL solutions, using Entity Framework and Blazor, applying design principles, producing technical documentation, performing performance tuning, and collaborating in Scrum/Agile teams with Bitbucket, JIRA, Tempo, and Confluence.

Develop and maintain web-based applications using .NET/C#, JavaScript, HTML/CSS, SQL and Oracle/SQL Server. Perform root cause analysis, collaborate with teams for requirements, follow Agile SDLC, present change demonstrations, and use Azure DevOps/Jira for lifecycle management. Implement and maintain Blazor components.

Build and maintain full-stack behavioral health technology features and services. Responsibilities include translating team goals into technical plans, designing APIs and services, evaluating technical tradeoffs, identifying risks, contributing to architecture, collaborating with product and QA, mentoring junior engineers, and improving testing and engineering practices. The role requires C#, TypeScript, .NET, modern frontend frameworks, databases, CI/CD, Docker, Kubernetes, and automated testing experience.

Leads architecture and hands-on development of a next-generation online banking platform using .NET and C#. Responsibilities include system design, production coding, team mentorship, full-stack development, AI/LLM integration, cloud infrastructure, CI/CD, real-time services, security, compliance, and rapid product delivery. The role partners with financial institutions and internal technology groups to build secure, scalable solutions for regulated banking environments.

Design, build, and maintain production-grade .NET web applications and APIs on Azure. Own full-stack delivery from data models and SQL to front-end components, CI/CD, testing, and architecture. Collaborate with product and delivery teams, participate in code reviews, and ensure secure, observable, well-tested services.

Leads the design, development, and implementation of full-stack applications using C#, .NET, Angular, Azure, and SQL Server. Collaborates with cross-functional teams, ensures application security, performance, and scalability, applies Git-based version control practices, mentors developers, and stays current with emerging technologies.

Design, develop, test, maintain, and document secure .NET web and database applications. Build responsive front-end experiences, integrate APIs and data feeds, support Azure and AWS cloud applications, and apply OWASP-aligned security practices. Translate stakeholder requirements into technical solutions, participate in Agile development, code reviews, vulnerability remediation, troubleshooting, testing, and documentation. Collaborate with technical, security, database, cloud, and business teams while supporting GIS integrations and continuous improvement.

Develop and maintain scalable .NET applications, backend services, and REST APIs supporting cloud-based email and Microsoft 365 products. Collaborate with product, QA, DevOps, and engineering teams in an Agile environment. Modernize legacy systems, troubleshoot production issues, conduct code reviews, and optimize application performance, security, reliability, and scalability.

Build and maintain scalable, cloud-native APIs and high-value core system components using .NET and related technologies. Lead software architecture and testing discussions, enhance core offerings, collaborate cross-functionally, and ensure quality through code reviews, unit testing, functional testing, telemetry, and performance tuning. Mentor teammates and contribute to continuous technical and process improvement.

Develop and maintain cloud-native applications using .NET, Angular, and Azure. Modernize legacy .NET Framework systems, support migration to .NET Core, build RESTful services, and work with Entity Framework, Docker, and Kubernetes. Collaborate cross-functionally in Agile environments, address client needs, and ensure compliance with security, governance, and accessibility standards. This remote role requires occasional travel and eligibility for Public Trust or suitability determination.

Develop and maintain business-critical investment applications for private equity, private placements, and real estate operations. Translate business requirements into software modules, collaborate with stakeholders, apply disciplined development and QA practices, test and implement changes, maintain applications, and resolve support issues. The role requires .NET and C# development, SQL expertise, client communication, project planning, and the ability to work effectively across teams in a hybrid Hartford environment.