Top .NET Developer Jobs in Baltimore, MD

Senior full‑stack .NET developer responsible for designing, building, testing, and deploying secure web applications. Work spans front-end (JS/HTML/CSS), middle-tier services (C#, Node.js), and persistence (SQL/NoSQL). Participate in architecture, code reviews, performance/scalability analysis, and cloud migration. Follow SOLID/OOP, SOA, and web security best practices.

Develop and maintain .NET Core/.NET 8 console applications integrating with EPA RCRAInfo REST APIs. Implement OAuth2 auth, parse/transform JSON/XML, perform SQL Server/Oracle data operations, and add robust logging (Serilog/NLog), retry policies (Polly), monitoring, and scheduled task automation. Support CI/CD and API integrations.

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.

Design, develop, and maintain scalable ASP.NET/C# APIs and microservices and front-end interfaces (Vue.js, AngularJS) for retail omni-channel and POS platforms. Contribute to architecture, write production-quality code, troubleshoot issues, participate in code reviews, and collaborate with product, design, and QA to deliver features with minimal onboarding.

Design, develop, implement and support web applications using .NET Core. Collaborate with internal bank teams and external vendors, troubleshoot production issues, and apply strong interpersonal, leadership, and problem-solving skills.

Designs, codes, tests, and documents .NET applications; follows SDLC and Agile/Scrum practices; supports Tier 3 incidents; works on system integration and CI/CD (Jenkins, GitHub); collaborates with product owners and vendors; participates in production releases and mentors junior developers.

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.

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

Own production reliability for customer-facing radar and weather data services across Azure, colocation, and edge Kubernetes. Refactor C#/.NET services for multi-replica safety, design multi-cluster HA, operate self-managed Kubernetes, improve observability and automation, lead incident response and postmortems, and drive operational excellence and capacity planning.

As a Principal .NET Software Engineer at Versapay, you will modernize payments infrastructure, improve scalability, design distributed services, and take ownership of payment workflows while collaborating with various teams to enhance customer experience.

The .Net Developer will design, implement, and maintain applications using VB .Net and C#, primarily focusing on financial systems and reporting.

The .NET Developer will develop new functionality and enhance existing applications while participating in team SCRUM meetings and conducting regression tests.

The .NET Developer will independently work on Client application source code, requiring skills in C#, .NET, and GUI design. They will manage tasks using TFS and communicate effectively in meetings.

Lead architecture, design, and implementation of enterprise .NET Core applications. Build and manage scalable Azure and AWS cloud infrastructure, architect SQL data warehouses and OLAP tuning, establish secure data pipelines and web services, provide technical leadership and mentorship, conduct code reviews, and evaluate open-source tools for integration and innovation.

The .Net Software Engineer is responsible for developing applications using multiple high-level programming and scripting languages, collaborating with various technologies, and ensuring system proficiency across platforms and databases.

The .Net Developer will work on SQL Server projects utilizing the Sync Framework and other Microsoft technologies, requiring at least three years of experience in software engineering.

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.

The .NET Developer will design, develop, and enhance web-based applications, maintain ERP solutions, and collaborate with cross-functional teams to support software throughout its lifecycle.

Maintain and enhance a portfolio of .NET web applications: write C#/.NET Core code, unit tests, and documentation; develop SQL queries and stored procedures; perform debugging, defect resolution, and ATO vulnerability remediation; ensure accessibility (Section 508/WCAG) compliance; use Azure DevOps for source control and CI/CD; participate in code reviews and technical working sessions under senior developer guidance.

Provide technical leadership to design, modernize, and sustain a portfolio of .NET web applications and Azure infrastructure. Develop and migrate WebForms to ASP.NET Core and SSRS to Power BI, maintain SQL Server databases, enforce secure coding and ATO compliance, ensure accessibility (Section 508/WCAG), and mentor junior developers while coordinating with VA stakeholders.

Hands-on lead developer/technical architect responsible for coding (.NET Core/.NET 8+), designing Azure-first architectures, building microservices and APIs, implementing Azure PaaS services and monitoring, performing code reviews and mentoring, troubleshooting production issues, and coordinating delivery with onshore/offshore teams.

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, 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.

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.

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.