.NET Developer | Sage IT | Hartford, CT

Tech Junction Ltd; Hartford (CT); On-site; USD 120,000 - 160,000; Full time

Job summary

Sage IT in Hartford, CT seeks a senior .NET Developer with 12+ years of progressive experience to own enterprise software design and backend engineering. You will drive full-stack development, RESTful APIs, and microservices in a fast-paced, on-site setting with cross-functional collaboration.

Responsibilities include architecture, performance optimization, and mentoring junior engineers, while maintaining strict coding standards and lifecycle processes for enterprise solutions.

Qualifications

• 12+ years of progressive hands-on .NET experience and enterprise architecture.
• Strong proficiency in C#, .NET Core, ASP.NET, and Web API.
• Experience with SQL Server, ORM frameworks, microservices, cloud + CI/CD.

Responsibilities

• Design, develop, test, and deploy scalable enterprise applications using C#, .NET Core, and ASP.NET.
• Architect and implement RESTful APIs, microservices, and distributed cloud services.
• Optimize database performance and data access layers with SQL Server and EF.
• Lead code reviews, testing, and performance profiling to ensure high quality.
• Collaborate with cross-functional teams and provide technical leadership.

Skills

C#/.NET

ASP.NET Core

Web API

SQL Server

ORM frameworks

Microservices

CI/CD pipelines

Debugging & Testing

Stakeholder communication

Education

Bachelor’s or Master’s degree in Computer Science / Software Engineering

Tools

Docker

Kubernetes

Jira

Confluence

ServiceNow

Job description

Position Summary

Driving advanced .NET software architecture, enterprise application development, and robust backend engineering in Hartford, Connecticut, Sage IT is actively seeking experienced .NET Developers with 12+ years of progressive professional experience for a permanent full-time on-site professional engagement. In this vital senior software engineering role, you will take full operational, tactical, and technical ownership of enterprise .NET application design, C# programming, ASP.NET Core, microservices architecture, database integration, code refactoring, performance optimization, and cross-functional engineering collaboration. Bringing over a decade of deep technical expertise in building scalable enterprise software solutions, you will empower an elite technology consulting enterprise to achieve uncompromised system reliability, ultra-low latency transaction processing, and superior application performance. This prestigious career opportunity offers competitive remuneration, enterprise client exposure, and professional growth within a leading global IT recruitment and software solutions corporation.

Detailed Job Description

As a .NET Developer supporting Sage IT on an on-site professional basis in Hartford, Connecticut, you will take full operational, tactical, and technical ownership of full-stack application development, architectural design, code reviews, and cross-functional engineering collaboration. Your day-to-day responsibilities include designing, developing, testing, and deploying scalable enterprise applications utilizing C#, .NET Core, ASP.NET, Entity Framework, and modern web technologies, building and maintaining robust RESTful APIs and microservices architectures, optimizing database queries and data access layers across SQL Server, collaborating proactively with project managers, quality assurance engineers, and technical recruitment leadership like Sridhar Marasa at Sage IT, adhering to strict corporate coding standards and modern software development lifecycles, and managing application requirements by submitting your updated resume via direct email to [e-mail] while explicitly mentioning your position title, visa status, and current location.

Key Responsibilities

• Design, develop, test, and deploy scalable enterprise-grade applications utilizing C#, .NET Core, and ASP.NET.
• Architect and implement high-performance RESTful APIs, microservices, and distributed cloud services.
• Optimize database performance, indexing strategies, and data access layers utilizing SQL Server and Entity Framework.
• Conduct rigorous code reviews, unit testing, integration testing, and performance profiling to ensure pristine code quality.
• Collaborate proactively with cross-functional software engineering, product management, and QA squads.
• Enforce strict adherence to enterprise security standards, coding guidelines, and software design patterns.
• Investigate production incidents, diagnose complex software bugs, and execute rapid root-cause analysis (RCA).
• Maintain meticulous technical documentation, API specifications, system architecture diagrams, and version control repositories.
• Participate actively in sprint planning, architectural design sessions, and technical roadmap discussions.
• Provide technical leadership and mentorship to junior software engineers across project teams.

Required Qualifications & Skills

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Information Technology, or a related technical discipline.
• Minimum of 12+ years of progressive professional hands-on experience in .NET software development and enterprise architecture.
• Strong, demonstrable operational programming proficiency in C#, .NET Core, ASP.NET, and Web API development.
• Comprehensive working knowledge and practical hands-on experience with SQL Server, relational database design, and ORM frameworks.
• Solid practical grasp of microservices architecture, cloud deployment, and CI/CD pipelines.
• Proven expertise in debugging complex enterprise software, writing unit tests, and optimizing application throughput.
• Strong analytical problem-solving skills and effective stakeholder communication capabilities.
• Mandatory legal work authorization and physical availability for professional on-site operations in Hartford, Connecticut.

Nice-to-Have Skills

• Professional vendor certifications such as Microsoft Certified: Azure Developer Associate or AWS Certified Solutions Architect.
• Prior professional working experience supporting Tier-1 global financial institutions, insurance corporations, or enterprise software enterprises.
• Hands-on familiarity with containerization platforms (Docker, Kubernetes) and messaging queues (Kafka, RabbitMQ).
• Experience utilizing enterprise agile tracking and IT service desk platforms (Jira, Confluence, ServiceNow).
• Active participation in software engineering user groups, open-source .NET projects, or technical forums.

Application Information

Recruiter: Sage IT Recruitment Division
Contact Name: Sridhar Marasa (Technical Recruitment Lead)
Email: [e-mail]
Phone:
Company Website: https://www.sageitinc.net
Salary/Rate: Market Competitive / Enterprise Senior .NET Engineering Package
Work Schedule: On-Site Professional Operations (Hartford, CT)
Deadline: Open until filled (Urgent Hartford Senior .NET Developer Opening)
Notice Period: Immediate to 30 Days Preferred
Contract Duration: Permanent / Full-Time Employment

Recruitment Pro Tip

When applying for this .NET Developer position with Sage IT in Hartford, ensure your resume explicitly highlights your 12+ years of C#/.NET enterprise architecture tenure, microservices background, and current visa status.