Top Senior .NET Developer Jobs in NYC, NY

We are looking for a Senior .NET Software Engineer to take ownership of features and drive architectural decisions while building AI-powered EMR software.

Design, code, and test applications using .NET and SQL Server, develop web applications, create SQL queries, and integrate APIs. Provide technical support and guidance.

Design and implement APIs and web applications using .NET Core, C#, React, and Next.js. Collaborate with teams to ensure secure, efficient deployment and compliance with policies.

As a Senior .NET Developer, you will design, develop, and maintain scalable backend services and APIs, implement architecture decisions, and communicate with clients.

The Full Stack .Net Developer will develop and maintain web applications using Angular and C#. Responsibilities include code review and collaboration with cross-functional teams.

As a Senior Software Engineer, you'll design and deliver high-quality solutions, collaborate across teams, mentor junior engineers, and implement scalable software systems.

The Senior Software Engineer will design and maintain .NET applications in AWS and on-prem environments, focusing on data processing solutions and collaborating on technical designs while ensuring security and compliance best practices.

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.

Design and implement cross-platform features for KeeperChat (desktop, mobile, web). Build and maintain .NET/C# MAUI clients and React web UI, optimize performance and reliability, participate in code reviews, collaborate with product/design/backend teams, and mentor junior engineers while upholding security and code quality.

Lead the transformation of financial platforms, modernizing legacy systems into ASP.NET Core microservices while optimizing performance and implementing security protocols.

Lead the modernization of fintech platforms, focusing on refactoring legacy systems and delivering secure, high-performance applications. This role includes API development, performance optimization, and security integration.

Senior Software Engineer II designs, develops, tests, and deploys scalable .NET-based features and ERP integrations. Responsibilities include technical design, code reviews, CI/CD pipeline management, troubleshooting, mentoring peers, and ensuring reliability, performance, and security across cloud-native Azure services.

Lead design and implementation of scalable .NET Core + Angular applications. Communicate with stakeholders, estimate work, drive agile delivery, ensure code quality, mentor engineers, and collaborate across product, QA, and design to deliver client-facing solutions.

Seeking a Senior Full Stack .NET Developer to work on a social good project, with strong skills in C#, AngularJS, design, and UX. Requires 5+ years of experience.

Develop and maintain web and desktop applications using .NET technologies. Requires strong programming skills, experience with databases, and project management.

Seeking a Senior Software Developer for developing high-performance distributed systems for media workflows, including video transcoding and content delivery.

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.

The Staff Engineer will leverage 5+ years of experience in C#, JavaScript, and frameworks to lead and innovate solutions in a collaborative environment.

Develop and maintain high-quality software solutions, analyze requirements, and collaborate with project leaders to ensure deadlines are met while adhering to coding standards.

The .NET Developer will analyze requirements, write design specifications, and conduct software testing and performance tuning while being a proactive team player.

The Senior .NET Developer will handle requirements analysis, write design specifications, perform software testing, and troubleshoot issues, while possibly leading a team.

Design and develop high-volume, multi-tiered applications using .Net technologies. Ensure high code quality through testing and reviews, while collaborating with cross-functional teams.

The .NET Developer will analyze requirements, write design specifications, and develop applications using ASP.NET and related technologies. Experience in software testing and troubleshooting is required.

The Senior .NET Developer will design, develop, and maintain applications using .NET technologies, conduct performance tuning, and collaborate with team members on software methodologies and architecture.

The Senior Software Engineer will develop business solutions, support applications, and diagnose trading desk system issues using .Net technologies.