Remote Senior Software Architect - Impactful Leader

One Call; Boston (MA); Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Remote work

Generous time off

Comprehensive benefits

Colleague assistance program

Job summary

One Call is seeking a Senior/Principal Software Engineer to provide architectural depth and hands-on leadership in a large, legacy-heavy environment that is actively modernizing. You will guide teams, improve engineering practices, and deliver high quality software across multiple critical applications.

This remote-first role sits at the center of technical decision-making, working with .NET, SQL Server, WinForms/Web Forms, and modern .NET Core stacks.

Qualifications

• 10+ years building enterprise .NET applications in C# (.NET Framework + .NET Core).
• Experience modernizing large legacy .NET codebases and Azure cloud services.
• Familiarity with healthcare/ workers' compensation or regulated industries.

Responsibilities

• Technical Leadership & Architecture: drive architecture discussions across multiple applications and services.
• Delivery & Cross‑functional Collaboration: partner with Product, QA, Design, and other teams to ensure predictable delivery.
• Hands‑On Software Development: contribute quality code in .NET, C#, and VB.NET; develop web apps and APIs.

Skills

C#

VB.NET

ASP.NET MVC

Web API

Web Forms

WinForms

SQL Server

Azure Cloud

Azure DevOps

JavaScript/TypeScript

REST APIs

Tools

MSTest

NUnit

XUnit

Moq

PowerShell

Bash

Entity Framework

Dapper

Job description

One Call is seeking a Senior/Principal Software Engineer to provide architectural depth and hands-on leadership in a large, legacy-heavy environment that is actively modernizing. You will guide teams, improve engineering practices, and deliver high quality software across multiple critical applications.

This remote-first role sits at the center of technical decision-making, working with .NET, SQL Server, WinForms/Web Forms, and modern .NET Core stacks.