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Junior Net Developer Jobs in Maryland (NOW HIRING)

Senior .NET Developer (Onsite)

Columbia, MD · On-site

$53.75 - $70.75/hr

NET modernization and migration initiatives, including AI-assisted code conversion efforts ... Mentor junior developers and contribute to engineering best practices Required Qualifications ...

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Mentor junior developers and provide technical guidance across development projects. * Maintain ... meridiantechnologies.net Our Core Expertise Includes: Advanced Analytics Agile Development ...

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Junior Net Developer information

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$36

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How much do junior net developer jobs pay per hour?

As of Aug 30, 2026, the average hourly pay for junior net developer in Maryland is $36.05, according to ZipRecruiter salary data. Most workers in this role earn between $27.55 and $41.54 per hour, depending on experience, location, and employer.
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Infographic showing various Junior Net Developer job openings in Maryland as of August 2026, with employment types broken down into 81% Full Time, 6% Part Time, and 13% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution, with an average salary of $74,988 per year, or $36.1 per hour.

Senior .NET Developer (Onsite)

Columbia, MD • On-site

Serigor, Inc.
Construction • 51 - 200 employees

$53.75 - $70.75/hr

Full-time

Re-posted 7 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