Senior Software Engineer
Rinsed
Software Engineering
United States
USD 225k-245k / year + Equity
Posted on Feb 5, 2026
Senior Software Engineer
United States
Engineering
Remote
Full-time
At Rinsed, we are building software to run the $15bn Car Wash industry.
We're a B2B SaaS company, providing car washes with all the tools they need to transition to a subscription model. Modern car washes are fully-automated tunnels that can wash over 200 cars/hr, and they are moving from selling single washes to all-you-can-wash subscriptions. We are giving this $15bn underserved market the tools to manage and grow their subscription revenue.
We are a small team, who just raised our Series B from VMG Technology in addition to our Series A from Founder's Fund and Bedrock Capital. We are currently installed at over 3,000 car washes nationally helping to manage more than 8 million car wash memberships. What we've built so far is just the beginning. Get to be part of the founding DNA of building a great product, a great culture, and a great company!
A Day in the Life
We are seeking a driven, intellectually curious candidate who is excited to work at a fast-growing startup.
As a Software Engineer, you will help create the DNA of the product, team, and culture. You’ll contribute to the technical aspects of new product development, own core infrastructure and security as the company grows, and make important strategic decisions alongside the founders and rest of the Dev team.
A typical day for this role at Rinsed includes:
- Write code that is efficient, clean, simple, easy to read and well tested
- Work closely with the team to define software requirements and implement them
- Analyze requirements, follow up with stakeholders and communicate product changes internally
- Collaborate cross-functionally and externally to build and improve Rinsed products
- Set and advocate for long-term infrastructure, security, and architectural direction
- Contribute to PCI/SOC2 discussions, evidence gathering, remediation
About You
You are driven, self-disciplined and naturally curious. You’re a strong collaborator who is transparent about progress on tasks, seeks feedback early and often, and works effectively with the team. You’re pragmatic and have a bias for action, even when solutions are imperfect.
You bring the following experience and expertise:
- 5+ years of full stack software engineering experience with expertise in cloud infrastructure
- Familiarity with Ruby on Rails, Postgres, Snowflake, JS, AWS
- Experience with Infrastructure as Code (Pulumi and/or AWS CDK strongly preferred).
- Strong database expertise with experience in architecture design and optimization
- Experience building and securing RESTful APIs with knowledge of authentication, authorization, and API security best practices
- Strong hands-on experience (3+ years) designing, implementing, and troubleshooting AWS networking services in production environments
- Track record of leading technical initiatives, establishing engineering best practices, conducting architecture reviews, and mentoring team members
Our Investment in You
- Work closely with senior engineers and leadership to drive initiatives forward.
- By joining as one of our early team members, there is enormous opportunity ahead for you to have an outsized impact and shape the future of Rinsed in this role.
- Competitive salary and benefits including unlimited PTO, health / dental / vision insurance and more.
- An incredible team with a great blend of hustle, productivity, and fun.
The estimated annual cash salary for this role is $225,000 - $245,000. This position is also eligible for incentive stock options, subject to the terms of applicable Rinsed plans. Rinsed provides an estimate of the compensation for roles that may be hired as required by state regulations. Compensation may vary based on (a) location, as we factor in specific location when benchmarking compensation for most roles, (b) individual candidate skills and qualifications, and (c) individual candidate experience. We leverage current market data to determine compensation, and reserve the right to modify this information at any time, subject to applicable law.
Rinsed embraces diversity and is proud to be an equal opportunity employer. As part of our commitment to diversifying our workforce, we do not discriminate on the basis of age, race, sex, gender, gender identity, color, religion, national origin, sexual orientation, marital status, citizenship, veteran status, or disability status.
We are also committed to providing reasonable accommodations for qualified individuals with disabilities in our job application process. If you need assistance or an accommodation due to a disability, you may contact people@rinsed.co.
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A veteran who served on active duty in the U.S. military and is entitled to disability compensation (or who but for the receipt of military retired pay would be entitled to disability compensation) under laws administered by the Secretary of Veterans Affairs, or was discharged or released from active duty because of a service-connected disabilityRecently separated veteran
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Req ID: R15