Senior Software Engineer
Job Overview
app/ Why this role matters right now RETR is a bootstrapped, profitable B2B SaaS company. We passed $10M ARR and growing with a team of twelve. No investors, no burn, no VC-driven headcount ramp. Just customers who pay, expand, and stay.
We're building the "Carfax for mortgage and real estate. " RETR is the data intelligence layer that mortgage professionals use to find and win real estate agent referral partnerships. This is the third engineering hire on a small team. What you build ships.
Job Description
What you own affects revenue that same month, not the fiscal year. What you'll do Design, develop, and maintain scalable ASP.
NET Core applications and REST APIs across a layered (WebUI → Services → Repositories → NHibernate → SQL Server) architecture Collaborate with product managers, designers, and engineers to define requirements and technical specifications Lead architecture discussions and contribute to decisions on scalability, performance, and system design Build and maintain background jobs with Hangfire, integrations with Stripe, Twilio, SendGrid, and Azure services Troubleshoot and resolve complex technical issues in production and development environments Participate in Agile development Stay current on emerging technologies and evaluate their potential impact on the platform The team Three engineers total.
You'll report to our Director of Engineering. He reports to our CTO, who is an engineer himself. That's the org. Everyone ships. Everyone owns. The stack Backend. ASP. NET Core, C#, REST APIs, layered architecture Data.
SQL Server with NHibernate ORM Frontend. Razor/MVC, jQuery, Bootstrap Infrastructure. Azure (Blob Storage, Key Vault, SignalR), Hangfire for background jobs Integrations.
Stripe, Twilio, SendGrid What we're looking for 5+ years of professional experience with C# and . NET (Core / .
NET 5+) Strong understanding of RESTful API design, layered architecture patterns, and ORM frameworks (NHibernate, EF Core, or similar) Solid SQL Server experience - complex queries, schema design, and performance tuning Comfortable working across the stack: backend services, Razor/MVC views, and JavaScript (jQuery/Bootstrap) Experience with Azure services (Blob Storage, Key Vault, SignalR) or equivalent cloud platforms Strong source control practices (Git), code review, and DevOps experience A creative problem solver with strong listening, logic, and critical thinking skills Team player with a passion for helping others succeed and a commitment to doing the right thing Bonus.
Key Responsibilities
- We're building the "Carfax for mortgage and real estate." RETR is the data intelligence layer that mortgage professionals use to find and win real estate agent referral partnerships.
- What you build ships.
- What you'll do Design, develop, and maintain scalable ASP.NET Core applications and REST APIs across a layered (WebUI → Services → Repositories → NHibernate → SQL Server) architecture Collaborate with product managers, designers, and engineers to define requirements and technical specifications Lead architecture discussions and contribute to decisions on scalability, performance, and system design Build and maintain background jobs with Hangfire, integrations with Stripe, Twilio, SendGrid, and Azure services Troubleshoot and resolve complex technical issues in production and development environments Participate in Agile development Stay current on emerging technologies and evaluate their potential impact on the platform The team Three engineers total.
- Lead with value.
Required Skills and Qualifications
- Stripe, Twilio, SendGrid What we're looking for 5+ years of professional experience with C# and .NET (Core / .NET 5+) Strong understanding of RESTful API design, layered architecture patterns, and ORM frameworks (NHibernate, EF Core, or similar) Solid SQL Server experience - complex queries, schema design, and performance tuning Comfortable working across the stack: backend services, Razor/MVC views, and JavaScript (jQuery/Bootstrap) Experience with Azure services (Blob Storage, Key Vault, SignalR) or equivalent cloud platforms Strong source control practices (Git), code review, and DevOps experience A creative problem solver with strong listening, logic, and critical thinking skills Team player with a passion for helping others succeed and a commitment to doing the right thing Bonus.
- Experience with authentication patterns (JWT, cookie auth, SAML2, OpenID Connect).
- Mobile app development experience.
- We welcome candidates of all backgrounds, experiences, abilities, and perspectives.
Benefits and Perks
- Stripe, Twilio, SendGrid What we're looking for 5+ years of professional experience with C# and .NET (Core / .NET 5+) Strong understanding of RESTful API design, layered architecture patterns, and ORM frameworks (NHibernate, EF Core, or similar) Solid SQL Server experience - complex queries, schema design, and performance tuning Comfortable working across the stack: backend services, Razor/MVC views, and JavaScript (jQuery/Bootstrap) Experience with Azure services (Blob Storage, Key Vault, SignalR) or equivalent cloud platforms Strong source control practices (Git), code review, and DevOps experience A creative problem solver with strong listening, logic, and critical thinking skills Team player with a passion for helping others succeed and a commitment to doing the right thing Bonus.
- National band, no geo-adjustment Fully remote, US-based Company-paid medical at 100% of your individual premium Dental, vision, life, short-term and long-term disability employer-provided 401(k) with match: 100% of your first 1% plus 50% of your next 5% 25 days PTO plus 13 paid holidays, including Christmas Eve and the day after Thanksgiving $100 weekly meal stipend, $100 monthly wellness stipend Full home office setup: laptop, monitors, camera, peripherals provided What we don't offer Big-tech RSUs.
USA Jobs Today role summary
Role Summary
Senior Software Engineer at RETR is a remote United States position and is listed as Full Time.
app/ Why this role matters right now RETR is a bootstrapped, profitable B2B SaaS company.
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- Review the stated qualifications, including: Experience with authentication patterns (JWT, cookie auth, SAML2, OpenID Connect).
- Confirm that the official application page still lists the role as open.
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About the Company
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