Senior .NET Technical Lead — POS Platform Modernization

Osi Digital Inc; Minneapolis, Saint Paul (MN, MN); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Osi Digital Inc. is seeking a Senior Technical Lead for the Customer’s POS codebase. The role is hybrid in the Greater Minneapolis area, with on-site involvement in Richfield, MN as needed.

You will own the hardest technical problems, coordinate across teams, mentor engineers, and influence architectural decisions while still contributing code. You will drive incremental modernization, raise quality standards, and work with stakeholders to translate business goals into pragmatic technical plans.

Qualifications

• Deep expertise in C# and .NET Framework 4.x.
• Hands-on experience migrating to .NET 6/8/10, including multi-targeting, netstandard2.0.
• Strong WCF skills: reading bindings, configurations, and contracts, and debugging services.

Responsibilities

• Own the technical direction of the POS codebase and be accountable for its health, stability, and evolution.
• Lead incremental modernization from .NET Framework toward modern .NET without a big-bang rewrite.
• Protect production by reviewing changes for risk, anticipating how things can break, and ensuring safe releases.
• Coordinate technical decisions across onshore and offshore developers so work stays consistent and aligned.
• Mentor senior engineers and set engineering standards for code, documentation, and process.
• Work directly with The Customer, including onsite visits, to understand needs, push back on unrealistic designs or timelines, and propose improvements.

Skills

C#

NET Framework 4.x

Migration to .NET 6/8/10

WCF

SQL Server

ADO.NET

MSBuild

Azure DevOps

Tools

Azure DevOps pipelines

MSBuild

NuGet

PowerShell

TeamCity

Job description

Osi Digital Inc. is seeking a Senior Technical Lead for the Customer’s POS codebase. The role is hybrid in the Greater Minneapolis area, with on-site involvement in Richfield, MN as needed.

You will own the hardest technical problems, coordinate across teams, mentor engineers, and influence architectural decisions while still contributing code. You will drive incremental modernization, raise quality standards, and work with stakeholders to translate business goals into pragmatic technical plans.