Senior .NET Developer

Compunnel, Inc.; Town of Florida (NY); On-site; USD 110,000 - 150,000; Full time

Job summary

A leading tech company is seeking a Senior .NET Developer to lead the architecture, development, and optimization of enterprise applications in the energy sector. This role requires over 8 years of experience in .NET and SQL Server, expertise in C# and ASP.NET, and the ability to guide junior developers. Responsibilities include designing scalable enterprise applications, implementing cloud-native solutions, and leading technical design sessions. Competitive compensation and opportunities for professional growth are offered.

Qualifications

• 8+ years of experience in .NET and SQL Server development.
• Strong expertise in C#, ASP.NET, MVC, Web API, and .NET Core.
• Extensive SQL Server experience including schema design, stored procedures, triggers, indexing, performance tuning, and execution plan optimization.

Responsibilities

• Design, develop, and optimize scalable enterprise applications using .NET technologies.
• Lead large-scale data migration initiatives from legacy platforms to modern architectures.
• Implement and maintain CI/CD pipelines for .NET applications.

Skills

C#

ASP.NET

MVC

Web API

SQL Server

Cloud-native application development

Agile/Scrum methodologies

CI/CD practices

Education

Bachelor’s degree in Computer Science, Engineering, or equivalent experience

Tools

Azure DevOps

Jenkins

GitHub Actions

Power BI

SSRS

Crystal Reports

Job description

The Senior .NET Developer will lead the architecture, development, and optimization of enterprise applications supporting commercial energy operations.

This role combines hands-on development with technical leadership, overseeing system integrations, large-scale data migrations, and business intelligence initiatives.

The position requires strong full-stack .NET development experience, advanced SQL Server expertise, cloud-native application development, and the ability to collaborate with business and technology stakeholders while guiding junior developers.

Key Responsibilities

• Design, develop, and optimize scalable enterprise applications using C#, ASP.NET, MVC, Web API, and .NET Core.
• Build and support RESTful and SOAP APIs for system integrations and third-party connectivity.
• Implement microservices and cloud-native applications deployed on AWS and/or Azure.
• Design and maintain SQL Server databases including schemas, stored procedures, triggers, functions, and ETL processes.
• Lead technical design sessions and translate business requirements into maintainable, scalable solutions.

Technical Leadership & Quality

• Establish and maintain coding standards, architectural patterns, and best practices.
• Mentor junior and mid-level developers on .NET technologies, SQL performance, and architectural principles.
• Conduct peer and formal code reviews with a focus on quality, security, performance, and maintainability.
• Evaluate and recommend new technologies, frameworks, and tools to support enterprise strategy.

Data Integration & Migration

• Lead large-scale data migration initiatives from legacy platforms to modern architectures.
• Build and support real-time and batch data synchronization processes for enterprise system interoperability.
• Support reporting and business intelligence initiatives using Power BI, SSRS, or Crystal Reports.

DevOps & CI/CD

• Implement and maintain CI/CD pipelines using Azure DevOps, Jenkins, or GitHub Actions.
• Automate build, test, and deployment processes for .NET applications.
• Manage deployments across development, UAT, and production environments.
• Implement logging, monitoring, and alerting solutions to support production stability.
• Lead technical workstreams from design through production support.
• Coordinate with distributed or offshore teams and provide guidance.
• Collaborate with architects, product owners, vendors, and business stakeholders to define solutions.
• Produce technical documentation including architecture diagrams, SOWs, and implementation guides.
• Manage technical relationships with vendors supporting enterprise applications.

Required Qualifications

• 8+ years of experience in .NET and SQL Server development.
• Strong expertise in C#, ASP.NET, MVC, Web API, and .NET Core.
• Extensive SQL Server experience including schema design, stored procedures, triggers, indexing, performance tuning, and execution plan optimization.
• Strong understanding of software design patterns including MVC, Repository, Factory, and Singleton.
• Experience designing and delivering complex enterprise applications.
• Hands-on experience with CI/CD pipelines and DevOps practices.
• Familiarity with Agile/Scrum methodologies and leading technical delivery.
• Strong troubleshooting skills for production issues and performance bottlenecks.
• Excellent communication skills for working with both technical and non-technical stakeholders.
• Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
• Energy or utility industry experience strongly preferred.