Senior Software Engineer — C#/.NET, AWS, AI Tools

LoopNet; Irvine (CA); On-site; USD 124,000 - 187,000; Full time

Benefits offered by this job

Healthcare coverage

Vision and Dental coverage

401(k) retirement plan with match

Employee stock purchase plan

Paid time off

Job summary

LoopNet, the leading commercial real estate marketplace, is seeking a Senior Software Engineer to advance scalable C#/.NET solutions in a cloud-first environment.

In Irvine, CA, you will contribute to multi-product architectures, mentor engineers, and help set technical direction while delivering high-quality features across LoopNet and its brands using modern AI-assisted tooling. This role offers onsite collaboration four days a week with one day remote.

Qualifications

• Bachelor’s degree required.
• 6+ years of production development with C#/.NET.
• Proven history of building and launching products.
• Experience delivering software that meets specs and SLAs.
• Strong API/backend and testing experience.

Responsibilities

• Build scalable, high‑quality systems across products and brands.
• Contribute to architecture decisions and technical direction.
• Mentor engineers and promote best practices across the team.

Skills

C# / .NET

API development

Mentoring

Unit testing

Server-side architecture

Education

Bachelor's degree

Tools

AWS

Docker

Kubernetes

Datadog

Kafka

SQL databases

Job description

LoopNet, the leading commercial real estate marketplace, is seeking a Senior Software Engineer to advance scalable C#/.NET solutions in a cloud-first environment.

In Irvine, CA, you will contribute to multi-product architectures, mentor engineers, and help set technical direction while delivering high-quality features across LoopNet and its brands using modern AI-assisted tooling. This role offers onsite collaboration four days a week with one day remote.