Senior Software Developer - Legacy Modernization & AI Integration

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Software Developer based in the United States.

This role sits at the crossroads of legacy system modernization and next-generation AI-augmented software engineering. You will help transform large-scale ASP.NET WebForms applications into a modern, scalable React and API-driven architecture, playing a key role in shaping both technical direction and engineering standards. Beyond migration work, you will act as a technical leader and mentor, helping elevate team capabilities across frontend, backend, and DevOps practices. A significant part of the role involves integrating and championing AI-assisted development workflows, using tools such as Claude to improve productivity, code quality, and delivery speed. You will collaborate closely with distributed teams, including offshore engineers, product managers, and designers. This is a high-impact position where your decisions directly influence platform modernization and engineering culture.

Accountabilities

This role is responsible for leading modernization efforts, improving engineering practices, and enabling scalable, high-quality software delivery across a distributed development environment.

• Lead the migration of legacy ASP.NET WebForms applications to a modern React frontend and API-first backend architecture.
• Define scalable engineering patterns, reusable components, and coding standards to support long-term modernization efforts.
• Identify architectural risks and ensure migration work is properly scoped and delivered incrementally within Agile sprints.
• Champion AI-augmented engineering practices, integrating tools such as Claude into planning, coding, testing, and review workflows.
• Mentor and support engineers through pairing, code reviews, and knowledge-sharing sessions to elevate overall team capability.
• Build and maintain strong collaboration with offshore development teams, ensuring clarity in requirements and consistency in delivery.
• Establish and maintain CI/CD quality gates and automated testing practices using tools such as Playwright.
• Partner with product and design teams to translate requirements into well-structured technical solutions.
• Participate actively in Agile ceremonies, contributing to continuous improvement and delivery excellence.
  
  

Requirements

This role requires strong full-stack experience with modern .NET and React ecosystems, combined with technical leadership and experience in distributed teams.

• 7+ years of professional software development experience, with strong expertise in C# and the .NET ecosystem.
• Hands-on experience with ASP.NET Web API and building scalable RESTful services.
• Strong proficiency in React, including TypeScript, modern state management approaches, and component-driven architecture.
• Demonstrated experience using AI/LLM tools (e.g., Claude) as part of real engineering workflows, not just for basic assistance.
• Strong understanding of prompt engineering and agentic workflows, including when and how to apply AI tools effectively.
• Experience building and maintaining automated test suites using Playwright within CI/CD pipelines.
• Familiarity with cloud environments such as AWS, Azure, or GCP, and deployment of modern applications.
• Proven ability to mentor engineers and provide technical leadership in distributed or remote-first teams.
• Experience working with offshore or cross-time-zone teams using asynchronous collaboration models.
• Strong communication skills and solid understanding of Agile/Scrum principles.
• Bachelor’s degree in Computer Science or related field, or equivalent professional experience.
  
  

Benefits

• Competitive base salary: $120,000 - $145,000 annually
• Annual discretionary bonus program

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• Comprehensive health, dental, and vision insurance coverage
• Health Savings Account with employer contributions
• Employer-paid short-term disability and life insurance
• 401(k) plan with up to 4% employer match
• Flexible PTO policy including sick leave, volunteering, and personal time
• Paid company holidays plus end-of-year closure period
• Remote-first work environment with eligible U.S. state coverage
• Educational reimbursement and ongoing professional development support
• Career growth opportunities in modern AI-driven engineering practices
  
  

How Jobgether Works

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

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We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.