RETR

Senior Software Engineer

Remote, United States remote Entry $10 - $170,000
remote Technology & IT Salary listed Curated
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About the role

Headquarters: Remote
URL: https://retr.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. 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. Experience with authentication patterns (JWT, cookie auth, SAML2, OpenID Connect). Mobile app development experience.

How we operate

Three philosophies we run by:

Give more than you get.

Lead with value.

Do the right thing.

Five values behind them: Honesty. Integrity. Fairness. Accountability. Excellence.

You'll love this job if you already operate this way. If you don't, we're not the right fit for you.

Beyond that, you'll thrive here if you're a problem solver who prefers new problems to familiar formulas, comfortable in a small team that moves fast and wears many hats, and someone who ships.

What we offer

$150,000-$170,000 base salary. 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. We're bootstrapped. No stock grants.

Bureaucracy. We're small and we like it that way.

Layers between you and the work. You'll report to our Director of Engineering. He reports to our CTO, who is an engineer. That's the org.

How to apply

Send a resume and a short note about what you've built that you're proud of to [email protected]. We read every application. If there's a fit, we'll set up a conversation and then a paid technical exercise that reflects the actual work.

We're an equal opportunity employer. We welcome candidates of all backgrounds, experiences, abilities, and perspectives. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

More at retr.app.

To apply: https://weworkremotely.com/remote-jobs/retr-senior-software-engineer

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role
Technology & IT API integration CSS Javascript MySQL Project Management remote

Likely questions

  1. Tell us about work you have done that is close to the Senior Software Engineer role.
  2. How would you approach your first 30 days at RETR?
  3. Which of API integration, CSS and Javascript have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with API integration, CSS and Javascript.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Software Engineer role because I can bring practical experience in API integration, CSS and Javascript, learn the team quickly, and contribute to the outcomes RETR needs from this hire.

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