.NET Full Stack Engineer - Onsite NYC - 2325

Job Summary

We are seeking a Senior Full Stack Engineer to help modernize critical legacy business systems into reliable, maintainable, and well-tested applications using .NET 8, Angular, SQL Server, and disciplined Azure DevOps delivery practices.

What You'll Do

• Design and build .NET 8 services and Angular front ends that replace legacy modules while preserving decades of business rules with verified fidelity.
• Migrate schemas and data from Ingres to SQL Server, including the reconciliation work needed to prove correctness.
• Reconstruct system behavior from legacy source code and SME interviews before re-implementing it in modern platforms.
• Apply LLM-assisted workflows to analysis, code, tests, and documentation while following team standards for verification, review, and quality.
• Deliver software through Azure DevOps using code reviews, automated tests, CI/CD discipline, and production-ready engineering practices.
• Partner with business stakeholders, subject matter experts, and technical teammates to clarify requirements, document decisions, and reduce migration risk.
• Contribute to architecture discussions, technical design documentation, implementation plans, and production support readiness.

What You Bring

• 8+ years of professional software engineering experience, including senior-level ownership from design through production support.
• Strong problem-solving ability, intellectual curiosity, and a self-driven approach to learning unfamiliar systems and domains.
• Deep expertise in .NET, including C#, ASP.NET Core, async and concurrency patterns, dependency injection, EF Core performance considerations, resilience patterns, observability, and automated testing.
• Strong experience with modern Angular, preferably v17+, and strict-mode TypeScript, including signals, RxJS, change detection and performance, and complex reactive forms.
• Advanced SQL Server skills, including relational design, T-SQL, execution plans, indexing strategy, concurrency and locking, and schema migrations as code.
• Strong system design capability, including decomposing domains into clean boundaries, defending trade-offs against non-functional requirements, and communicating decisions through ADRs and design documentation.
• Practical understanding of domain-driven design and incremental migration patterns such as strangler fig and anti-corruption layers.
• Daily, beyond-autocomplete proficiency with AI-assisted development tools such as GitHub Copilot agent mode, Claude Code, or comparable tools.
• Experience using spec-first workflows, context engineering through repository instructions and prompt files, and disciplined review of AI-generated output as untrusted until tested and verified.
• Comfort reading unfamiliar legacy code and establishing what it actually does before modifying or replacing it.

Nice to Have

• Exposure to legacy technology stacks such as VB.NET, VB6, OpenROAD, PowerBuilder, Oracle Forms, Ingres, or other legacy relational database platforms.
• Familiarity with electric utility environments, including IT/OT operations, operational systems, regulatory expectations, or related business processes.
• Experience supporting modernization initiatives where accuracy, auditability, and continuity of existing business behavior are critical.

Ideal Candidate Profile

The ideal candidate is a hands-on senior engineer who enjoys deep technical analysis, careful modernization, and high-accountability delivery. You are comfortable moving between legacy code, business conversations, modern architecture, database migration, automated testing, and production readiness. You value AI-assisted engineering, but you also know that correctness comes from clear specifications, human review, repeatable tests, and disciplined verification.

Qualifications

• 8+ years of professional software engineering experience, including senior-level ownership from design through production support.
• Strong problem-solving ability, intellectual curiosity, and a self-driven approach to learning unfamiliar systems and domains.
• Deep expertise in .NET, including C#, ASP.NET Core, async and concurrency patterns, dependency injection, EF Core performance considerations, resilience patterns, observability, and automated testing.
• Strong experience with modern Angular, preferably v17+, and strict-mode TypeScript, including signals, RxJS, change detection and performance, and complex reactive forms.
• Advanced SQL Server skills, including relational design, T-SQL, execution plans, indexing strategy, concurrency and locking, and schema migrations as code.
• Strong system design capability, including decomposing domains into clean boundaries, defending trade-offs against non-functional requirements, and communicating decisions through ADRs and design documentation.
• Practical understanding of domain-driven design and incremental migration patterns such as strangler fig and anti-corruption layers.
• Daily, beyond-autocomplete proficiency with AI-assisted development tools such as GitHub Copilot agent mode, Claude Code, or comparable tools.
• Experience using spec-first workflows, context engineering through repository instructions and prompt files, and disciplined review of AI-generated output as untrusted until tested and verified.
• Comfort reading unfamiliar legacy code and establishing what it actually does before modifying or replacing it.