.Net Developer

Location: Hartford, CT Salary: $50.00 USD Hourly - $53.00 USD Hourly Description:
ONLY W2 and local candidates

Job Title: .Net Developer

Location Hartford, CT (Hybrid)

Duration: 12+ Months Contract

Position Overview

We are seeking an experienced Senior Developer to support the design, development, modernization, and maintenance of enterprise applications. This role combines software engineering, requirements analysis, data migration validation, and Agile delivery responsibilities. The ideal candidate will be a hands-on contributor within a cross-functional Scrum team, partnering with business stakeholders, product owners, developers, testers, and data specialists to deliver scalable, high-quality solutions.

This position will play a key role in application modernization initiatives, including Power Platform development, customer-facing web applications, cloud-based solutions, and legacy system migration efforts. A strong focus will be placed on data migration validation, automation, and ensuring the integrity of migrated data across environments.

Key Responsibilities

Requirements Analysis & Documentation

• Partner with business and technical stakeholders to gather, analyze, and document business, functional, and technical requirements.
• Translate business requirements into well-defined user stories and acceptance criteria.
• Manage and refine product backlogs using Azure DevOps.
• Document current-state and future-state business processes, workflows, integrations, and data dependencies.
• Develop and maintain data mapping documentation between legacy and modernized systems.
• Create interface mapping documentation to align legacy functionality with new application components.
• Ensure end-to-end traceability of requirements throughout the software development lifecycle.

Software Development & Solution Delivery

• Design, develop, enhance, and maintain applications using ASP.NET MVC, Entity Framework, and Azure-based services.
• Build and support web applications, Power Apps solutions, and customer-facing interfaces.
• Implement and optimize Azure App Services, Azure SQL databases, and related cloud components.
• Develop database objects, stored procedures, and performance optimization solutions.
• Collaborate on SSIS-based ETL processes, data integration, and migration activities.
• Contribute to CI/CD pipeline development and deployment automation using Azure DevOps and Git repositories.
• Participate in peer code reviews and promote coding standards, security, maintainability, and performance best practices.

Data Migration Validation & Testing

• Design, develop, and execute reusable automated data validation scripts to verify migration completeness and accuracy.
• Validate record counts, data transformations, business rules, referential integrity, and data consistency across environments.
• Investigate and resolve data discrepancies in collaboration with development and data engineering teams.
• Maintain detailed documentation of validation procedures, transformation logic, and testing outcomes.
• Support system testing, integration testing, and user acceptance testing efforts.
• Create and execute test cases and manage defects through Azure DevOps.

Agile Delivery & Team Collaboration

• Serve as an active member of a self-organizing Agile Scrum team.
• Participate in sprint planning, daily stand-ups, sprint reviews, retrospectives, and backlog refinement sessions.
• Collaborate with Product Owners and stakeholders to prioritize work and define sprint objectives.
• Contribute to continuous improvement initiatives and foster a collaborative, accountable team culture.

Minimum Qualifications

• Proven experience developing enterprise web applications using ASP.NET MVC and Entity Framework.
• Strong knowledge of Microsoft Azure services, including:
• Azure SQL
• Azure App Service
• Azure DevOps
• CI/CD Pipelines
• Git Repositories
• Expertise in creating and executing automated data validation and testing scripts using SQL and scripting technologies.
• Strong understanding of relational databases, data modeling, data migration, and mapping methodologies.
• Experience documenting and validating data migration and interface mapping activities.
• Hands-on experience with Azure DevOps for backlog management, test management, and defect tracking.
• Solid understanding of Agile and Scrum methodologies.
• Advanced proficiency with Microsoft Office tools, including Excel and Visio.

Preferred Qualifications

• Experience supporting application modernization or digital transformation initiatives.
• Familiarity with enterprise security models, access controls, and role-based authorization.
• Experience with API integrations, system interoperability, and reporting validation.
• Experience working on large-scale data migration projects.
• Background in public sector, education, healthcare, or highly regulated environments is a plus.

Key Deliverables

• User Stories and Acceptance Criteria
• Functional and Non-Functional Requirements Documentation
• Business Process Maps and Workflow Diagrams
• Data Mapping and Interface Mapping Documentation
• Developed, Tested, and Deployed Application Components
• Automated Data Validation and Migration Testing Scripts
• Test Plans, Test Cases, and Test Execution Results
• Requirements Traceability Matrix
• CI/CD Deployment Artifacts
• Status Reports, Risk Logs, and Issue Tracking Documentation

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