Remote Principal Software Architect (.NET & Azure)

One Call; Boston (MA); Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote work

Generous time off

Comprehensive benefits package

Supportive services

Job summary

One Call is seeking a Senior/Principal Software Engineer to provide architectural depth and hands-on leadership in a legacy-heavy environment modernizing toward modern frameworks. You will guide engineers, drive critical decisions, and deliver high-quality software across .NET, SQL Server, and front-end stacks in a remote-first setting.

You will mentor teams, improve CI/CD maturity, champion observability, and work across APIs, data, and deployment pipelines, balancing delivery velocity with

Qualifications

• 10+ years building enterprise .NET applications in C# (.NET Framework + .NET Core).
• Experience modernizing large legacy .NET codebases with service extraction and modularization.
• Familiarity with Azure cloud services, logging, monitoring, and observability patterns.
• Experience in healthcare, workers' compensation, claims processing, or regulated industries.

Responsibilities

• Own and drive architecture and design discussions across multiple applications and services.
• Provide pragmatic, hands-on guidance to teams working across .NET, SQL, and mixed front-end stacks.
• Evaluate legacy architectures and propose modernization patterns; catalyze refactors and consolidation.
• Champion engineering excellence: code quality, testing, CI/CD maturity, observability, and maintainability.
• Unblock teams quickly by diagnosing issues across the entire stack and collaborating with product teams.

Skills

C# / .NET

SQL Server

REST APIs

Azure

CI/CD

VB.NET

Distributed systems

Leadership

JavaScript/TypeScript

Education

Bachelor's degree in Computer Science or related

Tools

Azure DevOps

MSTest

NUnit

XUnit

Git

PowerShell

Job description

One Call is seeking a Senior/Principal Software Engineer to provide architectural depth and hands-on leadership in a legacy-heavy environment modernizing toward modern frameworks. You will guide engineers, drive critical decisions, and deliver high-quality software across .NET, SQL Server, and front-end stacks in a remote-first setting.

You will mentor teams, improve CI/CD maturity, champion observability, and work across APIs, data, and deployment pipelines, balancing delivery velocity with