Architecture Principal Software Architect Remote (US)

A8 Core; Northern (KY); Remote; USD 180,000 - 230,000; Full time

Job summary

Financial Infrastructure, Inc. is seeking a Principal Software Architect to own the evolution of major platform domains, driving modernization, scalability, and reliability as a hands-on technical leader. This is not a management role and requires cloud-native platform transformation.

You will collaborate with Product teams, shape reference architectures, and lead migrations while ensuring measurable business outcomes and increased development velocity across the U.S. remote environment.

Qualifications

• 15+ years software engineering experience.
• 10+ years architecture experience.
• Expert-level C# and .NET expertise.
• Experience modernizing enterprise platforms.

Responsibilities

• Create reference architectures.
• Lead migration to .NET 10.
• Improve observability.
• Improve reliability.
• Partner with Product teams.
• Deliver modernization initiatives
• Increase development velocity and align with customer needs.

Skills

Software engineering

Architecture leadership

C# / .NET expert

Enterprise modernization

Tools

Event Hub

Service Bus

OpenTelemetry

Application Insights

Azure

Job description

Service status · A8 Core™ · The Operating System for Financial Accounts · The account operating system · API-first

The Principal Software Architect owns the evolution of one or more major platform domains and serves as a hands-on technical leader responsible for modernization, scalability, reliability, and engineering excellence.

Location Remote (United States) Reports to Chief Architect Team Architecture

The Principal Software Architect owns the evolution of one or more major platform domains and serves as a hands-on technical leader responsible for modernization, scalability, reliability, and engineering excellence.

This is not a management role.

This is a builder’s role.

We are looking for someone who thrives in complexity, embraces ownership, and can transform mature systems into modern, cloud-native platforms.

What you’ll own

Potential ownership areas include:

• Account Platform
• Ledger
• Custody
• Retirement Administration
• Alternative Assets
• Compliance
• API Platform
• Reporting

Responsibilities

• Create reference architectures

Platform Modernization

• Lead migration to .NET 10
• Improve observability
• Improve reliability

Customer Impact

• Partner with Product teams
• Support strategic customer requirements

Qualifications

Required

• 15+ years software engineering experience
• 10+ years architecture experience
• Expert-level C# and .NET expertise
• Experience modernizing enterprise platforms

Technical environment

Platform

Data

Messaging

Event Hub Service Bus

Observability

OpenTelemetry Application Insights

Security

First 90 Days

• Complete architecture assessment
• Identify modernization priorities

First 6 Months

• Deliver modernization initiativesImprove reliability

First 12 Months

• Deliver measurable business outcomes
• Increase development velocity

Join the team

Why join A8 Core™

You will have the opportunity to help build one of the most ambitious financial infrastructure platforms in the industry while working alongside world-class engineers and architects.