Lead .NET Developer

Delphi-US, LLC - Peacemakers in the Talent War; Windsor (CT); On-site; USD 83,000 - 91,000; Full time

Job summary

Delphi-US is seeking a Lead .NET Developer in Hartford, CT to provide technical leadership within a modern Microsoft environment, influence architecture, and guide platform modernization across multiple teams delivering scalable, secure enterprise solutions.

You will establish standards, mentor engineers, participate in architectural reviews, and partner with security and product teams to implement cloud-native designs, microservices, and API-first approaches using Azure.

Qualifications

• Bachelor's degree required in CS/engineering or related field.
• Extensive enterprise application development experience with C#, ASP.NET, ASP.NET Core, and modern .NET platforms.
• Proven track record designing and implementing large-scale distributed systems in production.
• Strong understanding of software architecture principles and patterns.
• Ability to lead technical initiatives across multiple teams without direct authority.
• Experience delivering cloud-based solutions, preferably in Azure.
• Excellent written and verbal communication skills, with ability to influence senior stakeholders.

Responsibilities

• Architect and design scalable, resilient enterprise solutions using modern .NET technologies.
• Lead architectural governance and ensure alignment with enterprise standards.
• Drive platform modernization initiatives, including migration from legacy .NET Framework to current platforms.
• Establish and promote engineering standards, best practices, and development methodologies.
• Provide technical guidance and mentorship to engineering teams, fostering technical excellence.
• Lead technical reviews, architecture discussions, and strategic technology decisions.
• Document and defend architectural decisions through ADRs and design documents.
• Collaborate with cross-functional teams to translate business needs into technical solutions.
• Evaluate emerging technologies and recommend adoption strategies aligned with goals.
• Support implementation of cloud-native architectures, microservices, and API-first design.
• Drive automation in deployment, testing, and operational practices to improve reliability.
• Partner with security teams to embed security and privacy considerations into architecture and delivery.

Skills

C#

ASP.NET

ASP.NET Core

Distributed systems

Leadership

Communication

Education

Bachelor's degree in computer science, engineering, or a related field

Tools

Azure

Microservices

Job description

Lead .NET Developer | Location: Hartford, CT | Contract | Hourly Pay Range $60-$66

Join a forward-thinking team as a Lead .NET Developer, where you\'ll provide technical leadership within a modern Microsoft technology environment. This role offers the chance to influence architecture, lead platform modernization efforts, and guide multiple teams in delivering scalable, secure, and maintainable enterprise solutions.

Key Responsibilities

• Architect and design scalable, resilient enterprise solutions using modern .NET technologies.
• Lead architectural governance and ensure alignment with enterprise standards.
• Drive platform modernization initiatives, including migration from legacy .NET Framework applications to current platforms.
• Establish and promote engineering standards, best practices, and development methodologies.
• Provide technical guidance and mentorship to engineering teams, fostering a culture of technical excellence.
• Lead technical reviews, architecture discussions, and strategic technology decisions.
• Document and defend architectural decisions through ADRs and design documents.
• Collaborate with cross-functional teams to translate business needs into technical solutions.
• Evaluate emerging technologies and recommend adoption strategies aligned with organizational goals.
• Support implementation of cloud-native architectures, microservices, and API-first design.
• Drive automation in deployment, testing, and operational practices to improve system reliability and efficiency.
• Partner with security teams to embed security and privacy considerations into architecture and delivery.

Required Qualifications

• Bachelor\'s degree in computer science, engineering, or a related field.
• Extensive experience in enterprise application development with C#, ASP.NET, ASP.NET Core, and modern .NET platforms.
• Proven experience designing and implementing large-scale distributed systems in production.
• Strong understanding of software architecture principles and patterns, with sound judgment on when to apply them.
• Demonstrated ability to lead technical initiatives across multiple teams without direct authority.
• Experience delivering cloud-based solutions, preferably in Azure.
• Strong problem-solving skills, including diagnosing production incidents in complex systems.
• Excellent written and verbal communication skills, with the ability to influence senior stakeholders.

Preferred Qualifications

• Experience with cloud platforms, especially Microsoft Azure, at an enterprise level.
• Knowledge of platform engineering and internal developer platform practices.
• Familiarity with event-driven architecture and messaging platforms.
• Experience building mission-critical applications with defined SLAs/SLOs.
• Background in regulated industries such as healthcare, financial services, or pharmaceuticals.
• Leading large-scale legacy modernization or cloud migration programs.
• Relevant certifications such as Microsoft Certified Azure Solutions Architect Expert or Azure DevOps Engineer Expert.
• Experience with SRE practices, including SLOs, error budgets, and incident management.
• Contributions to open source projects, technical publications, or industry conferences.
• Experience integrating AI/GenAI capabilities into enterprise solutions.

About Delphi-US

Delphi-US is a national IT Services firm based in Newport, Rhode Island. Delphi attracts our nation\'s best and brightest Technical & Professional Talent and positions our nation\'s finest employers to further their competitive advantages. Delphi\'s core technical focus includes Data Intelligence Engineering & Analytics, AI/ML Operational Excellence, DevOps & Cloud Computing, Health IT & Life Sciences, and Energy Management/Power Systems; serving domains from sensitive national energy sectors to critical financial services, biomed, life sciences & pharma, major government & municipal institutions, and much of the USA\'s Fortune 500 corporations. Delphi Associates are deployed on critical IT Projects where their consultative business acumen, comprehensive technical expertise, and committed service mission drives our client\'s success. Our proprietary skill-based and cultural matching process results in higher qualified project teams, custom curated for our client\'s specific technical & functional goals. We are supremely experienced, friendly, professional, and ready to advocate on your behalf. Delphi has an indelible understanding of employer expectations, a track record of project success and we deliver lasting results.

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