ZipRecruiter

Log In

1

Senior Dot Net Developer Jobs in Baltimore, MD (NOW HIRING)

Serigor, Inc.

Senior .NET Developer (Onsite)

Columbia, MD · On-site

$53.75 - $70.75/hr

Senior .NET Developer (Onsite) Location: Columbia, MD Job Type: Full-Time * We are seeking a highly experienced Senior .NET Developer to support large-scale enterprise modernization initiatives ...

Technogen, Inc.

Senior.Net Developer

Baltimore, MD · On-site

$54.25 - $71.50/hr

Senior .Net Developer Location: Local to VA,MD Duration: Long Term Required Skills: 7+ years of ... experience in .NET application development. Strong expertise in C#, ASP.NET, .NET Core, Web APIs ...

Apex Informatics

Lead .Net Developer (W2)

Baltimore, MD · On-site

$60/hr

Net Developer client -T Rowe Price Duration- Long term contract Type- Hybrid Joining ASAP T Rowe Price is looking for senior .Net developer. The key skillset for the role is experience with Data ...

Baer

Senior .NET Azure AI Developer (17515)

Woodlawn, MD · On-site

$57.25 - $71/hr

Senior .NET Azure AI Developer Location: Onsite - Woodlawn, MD (Mon-Fri) Duration: 9 months Rate: All-inclusive Alignment: W2 or C2C Overview Seeking a talented Senior .NET Azure AI Developer to join ...

Resource Point LLC

.NET Developer Senior

Linthicum Heights, MD · On-site

$54.75 - $72.25/hr

H-1B Transfers AND CORP-TO-CORP Candidates WILL NOT BE CONSIDERED for this position Job Title: .Net Developer Senior Location: Linthicum Heights MD, Onsite position & Onsite interview Duration: 12 ...

FedTec LLC

.NET Developer

Baltimore, MD · On-site

$48 - $63.25/hr

.NET Developer Prudent Technology is seeking a senior-level .NET Developer to provide application development, database engineering, and metadata support to SSA's Data Strategy and Enablement (DSAE ...

Amentum

Software Developer - Senior

Fort George G Meade, MD · On-site

$60.50 - $79.75/hr

The Senior .NET Core Developer will be a key contributor to the development and maintenance of SENTINEL, a web-based application used to track counterintelligence related entities and their ...

Pae

Software Developer - Senior

Fort George G Meade, MD

$60.50 - $79.75/hr

The Senior .NET Core Developer will be a key contributor to the development and maintenance of SENTINEL, a web-based application used to track counterintelligence related entities and their ...

next page

Showing results 1-20

All JobsDot Net Developer JobsSenior Dot Net Developer JobsSenior Dot Net Developer Jobs in Baltimore, MD

Senior Dot Net Developer information

See Baltimore, MD salary details

$36

$59

$77

How much do senior dot net developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for senior dot net developer in Baltimore, MD is $59.82, according to ZipRecruiter salary data. Most workers in this role earn between $52.55 and $66.88 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior dot net developer?

To thrive as a Senior Dot Net Developer, you need advanced proficiency in C#, .NET frameworks, object-oriented programming, and a bachelor's degree in computer science or a related field. Expertise with Visual Studio, SQL Server, Azure DevOps, and relevant certifications like Microsoft Certified: .NET Developer are highly valued. Strong problem-solving, leadership, and effective communication skills help drive complex projects and mentor junior team members. These competencies ensure robust, scalable software solutions and foster high-performing development teams.

What is the difference between Senior Dot Net Developer vs Software Engineer?

AspectSenior Dot Net DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related, .NET certificationsBachelor's in CS or related, various programming certifications
Work EnvironmentDeveloping .NET applications, coding, debuggingDesigning, coding, testing software across platforms
Employer & Industry UsageTech companies, finance, healthcare using .NETBroad industry use, including tech, finance, startups
Common Search & ComparisonYesYes

The main difference between a Senior Dot Net Developer and a Software Engineer lies in their focus areas. Senior Dot Net Developers specialize in building and maintaining applications using the .NET framework, often with specific certifications. Software Engineers have a broader scope, working across various programming languages and platforms. Both roles are vital in tech industries, but the Senior Dot Net Developer role is more specialized in Microsoft technologies.

How does a senior .NET developer typically collaborate with cross-functional teams during a project lifecycle?

As a Senior .NET Developer, you will frequently work alongside product managers, UI/UX designers, quality assurance testers, and other developers to deliver robust software solutions. Your role often involves clarifying technical requirements, providing input on architecture and feasibility, and ensuring seamless integration with other systems. Effective communication and proactive problem-solving are vital, as you'll help bridge the gap between technical and non-technical stakeholders. Regular code reviews and agile ceremonies like sprint planning and stand-ups are common in this collaborative environment.

What does a senior dot net developer do?

A Senior Dot Net Developer designs, develops, and maintains software applications using Microsoft's .NET framework. They work on complex projects, often leading development teams, architecting solutions, and ensuring code quality through best practices. Their responsibilities also include troubleshooting issues, optimizing application performance, and mentoring junior developers. They typically collaborate with other IT professionals and stakeholders to deliver scalable and efficient software solutions.
What are the most commonly searched types of Dot Net Developer jobs in Baltimore, MD? The most popular types of Dot Net Developer jobs in Baltimore, MD are:
What are popular job titles related to Senior Dot Net Developer jobs in Baltimore, MD? For Senior Dot Net Developer jobs in Baltimore, MD, the most frequently searched job titles are:
What job categories do people searching Senior Dot Net Developer jobs in Baltimore, MD look for? The top searched job categories for Senior Dot Net Developer jobs in Baltimore, MD are:
What cities near Baltimore, MD are hiring for Senior Dot Net Developer jobs? Cities near Baltimore, MD with the most Senior Dot Net Developer job openings:
Senior Dot Net Developer jobs near you
Infographic showing various Senior Dot Net Developer job openings in Baltimore, MD as of August 2026, with employment types broken down into 1% As Needed, 91% Full Time, 6% Part Time, 1% Contract, and 1% Nights. Highlights an 96% Physical, and 4% Remote job distribution, with an average salary of $124,423 per year, or $59.8 per hour.

Senior .NET Developer (Onsite)

Serigor, Inc.

Columbia, MD • On-site

$53.75 - $70.75/hr

Full-time

Re-posted 18 days ago

Job description

Job Title: Senior .NET Developer (Onsite)
Location: Columbia, MD
Job Type: Full-Time
Job Description:
  • We are seeking a highly experienced Senior .NET Developer to support large-scale enterprise modernization initiatives focused on transforming legacy Mainframe applications into modern, cloud-ready .NET platforms.
  • The ideal candidate will have strong expertise in enterprise Microsoft technologies, distributed systems, APIs, database modernization, DevOps, and cloud platforms. This role involves working closely with modernization teams to support application conversion, remediation, integration, testing, and cloud enablement efforts.
  • Experience supporting Mainframe modernization, automated code conversion, and enterprise transformation programs is highly preferred.

Key Responsibilities:
  • Design, develop, enhance, and support enterprise-grade applications using modern .NET technologies
  • Support Mainframe-to-.NET modernization and migration initiatives, including AI-assisted code conversion efforts
  • Refactor and optimize converted code to align with modern .NET engineering standards and architecture principles
  • Develop RESTful APIs, gRPC services, backend services, batch jobs, and distributed integration solutions
  • Build scalable, maintainable, and high-performance applications
  • Support enterprise database modernization, data migration, DB2 integration, and SQL Server optimization
  • Collaborate with Mainframe SMEs, architects, QA teams, DevOps engineers, and business analysts
  • Support remediation, integration testing, regression testing, and functional equivalence validation
  • Contribute to CI/CD pipelines, DevOps automation, deployment processes, and modernization frameworks
  • Troubleshoot application issues, perform root cause analysis, debugging, and performance tuning
  • Work within AWS and Azure cloud environments
  • Develop technical documentation, deployment guides, and operational runbooks
  • Mentor junior developers and contribute to engineering best practices

Required Qualifications:
  • 10+ years of enterprise .NET development experience
  • Strong hands-on expertise with:
    • C#
    • ASP.NET / ASP.NET Core
    • .NET Framework / .NET Core / .NET 6+
    • Web APIs / RESTful Services
    • gRPC Services
    • Entity Framework / EF Core
    • Angular and/or React
    • JavaScript
    • LINQ
    • Windows Services and scheduled batch processing
    • PowerShell scripting
  • Strong experience building distributed and service-oriented applications
  • Solid understanding of:
    • Object-Oriented Programming (OOP)
    • SOLID principles
    • Design patterns
    • Secure coding practices
  • Experience with:
    • Microservices architecture
    • API integrations
    • Git and Azure DevOps
    • CI/CD pipelines and DevOps automation
    • Docker and containerization
    • Kubernetes or container orchestration platforms
  • Strong database expertise with:
    • Microsoft SQL Server
    • DB2
    • Stored procedures
    • Query optimization
    • Data migration and performance tuning
  • Experience with messaging/event technologies such as Kafka, RabbitMQ, or Azure Service Bus
  • Strong troubleshooting, debugging, and optimization skills
  • Experience working in Agile/Scrum environments
  • Excellent written and verbal communication skills

Cloud & Infrastructure Experience
AWS Experience with:
  • EC2
  • S3
  • IAM
  • CloudWatch
  • Cloud-based deployments and monitoring
  • Hybrid cloud environments

Microsoft Infrastructure Experience with:
  • Windows Server
  • IIS deployment and configuration
  • Enterprise application hosting and deployment support

Preferred Qualifications:
  • Experience supporting Mainframe modernization initiatives involving:
    • COBOL-to-.NET transformation
    • AI-assisted code conversion
    • Functional equivalence validation
    • Legacy application modernization
  • Exposure to Mainframe technologies such as:
    • COBOL
    • JCL
    • CICS
    • VSAM
    • DB2
    • IMS
  • Experience supporting government, financial, healthcare, tax, or other large enterprise modernization programs
  • Experience with automated modernization tools and modernization factory delivery models
  • Exposure to hybrid and multi-cloud enterprise environments

Apply