.NET Developer | Sage IT | Hartford, CT

Sage IT; Hartford (CT); On-site; USD 150,000 - 190,000; Full time

Job summary

Sage IT in Hartford, CT is seeking a senior .NET Developer to drive advanced architecture, backend engineering, and enterprise application design on-site. You will own C#, .NET Core, ASP.NET, microservices, and SQL Server related development for high-availability systems.

With 12+ years of hands-on experience, you will lead technical decisions, review code, mentor junior engineers, and collaborate across cross-functional teams to deliver scalable solutions.

Qualifications

• 12+ years of progressive professional hands-on experience in .NET software development and enterprise architecture.
• Strong experience with C#, .NET Core, ASP.NET and Web API development.
• Hands-on experience with SQL Server, relational design, and ORM frameworks.
• Understanding of microservices, cloud deployment, and CI/CD pipelines.
• Ability to debug complex enterprise software, write unit tests, and optimize performance.
• Excellent communication and stakeholder management skills.

Responsibilities

• Design, develop, test, and deploy scalable enterprise-grade applications using C#, .NET Core, and ASP.NET.
• Architect and implement high-performance RESTful APIs, microservices, and distributed cloud services.
• Optimize database performance and data access layers with SQL Server and Entity Framework.
• Conduct code reviews, unit testing, integration testing, and performance profiling.
• Collaborate with cross-functional teams including product management and QA.
• Mentor junior engineers and contribute to architectural roadmap and best practices.

Skills

C#

NET Core

ASP.NET

Web API

SQL Server

Microservices

CI/CD

Unit testing

Mentorship

Security

Education

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

Tools

Docker

Kubernetes

Git

Entity Framework

Jira

Confluence

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.