Senior Software Engineer

About Checkr
Checkr is building the data platform to power safe and fair decisions. Checkr’s innovative technology and robust data platform help customers assess risk and ensure safety and compliance to build trusted workplaces and communities. Checkr has over 100,000 customers including Amazon, DoorDash, Netflix, Kimpton, and Anthropic.

We’re a team that thrives on solving complex problems with innovative solutions that advance our mission. Checkr is recognized on Forbes Cloud 100 2025 List and is a Y Combinator 2024 Breakthrough Company.

Checkr Trust is building safer communities by providing our customers with risk signals about its users. Every year, our team provides insights on tens of millions of users across multiple verticals: online dating, car rental, short-term rentals, and many more. We acquire, analyze, and deliver insights in smart, scalable ways that help organizations identify and mitigate risk.

Trust is part of the Checkr start-up lab: we operate with the speed of a small startup, while enjoying the leverage and resources of a known technology brand.

Since launching, we’ve seen significant growth and we are looking for a Senior Full Stack Software Engineer to play a pivotal role in the continued growth of our startup. As part of our small team, you will be empowered to take significant end-to-end ownership - from idea to execution to real customer and business impact.

What you’ll do:

• Work closely with customers, engineers, and leaders to design, build, and launch new products.


• Take full ownership of the entire process of developing end-to-end applications – from shaping the idea to delivering the finished application.


• Build and improve APIs, including integrating with third-party services to expand what our products can do.


• Embrace a customer-centric, product-first approach – partner directly with customer success, customers and stakeholders to better understand their needs and turn those into useful features.


• Keep code reliable and easy to maintain with solid testing, thoughtful reviews, and good practices.


• Run and measure product experiments, using what you learn to guide future development.


• Building scalable APIs and asynchronous event-based architecture that can reliably handle very high traffic.

What you bring:

• BS/MS degree in either computer science or an engineering discipline.


• Have founded or held early roles at successful fast-paced startups.


• 6+ years of full stack software development experience.


• Advanced knowledge in Ruby (Rails), Javascript (React), or similar languages/frameworks.


• Experimentation mindset: autonomy and empowerment to validate a customer need, get team buy-in, and ship a rapid MVP.


• Early-stage approach: comfort with ambiguity, balancing speed and perfection, and the confidence and curiosity to help guide product direction.


• An A-player mindset with a strong bias for action: you raise the bar, move with urgency, stay resilient through ambiguity, and take ownership to deliver meaningful outcomes.

Nice to have:

• Experience building scalable technical architecture that can scale to 10mm+ users (including observability tooling, container orchestration, etc).
  Background in trust & safety, IDV, background check products or criminal data.


• Expertise in data analysis and processing.


• Experience building and working with scrapers and scraping technology

What We Offer

• A fast-paced and collaborative environment


• Learning and development allowance


• Competitive cash and equity compensation, and opportunity for advancement


• 100% medical, dental, and vision coverage


• Up to $25K reimbursement for fertility, adoption, and parental planning services


• Flexible PTO policy


• Monthly wellness stipend

At Checkr, we believe an in office work environment strengthens collaboration, drives innovation, and encourages connection. Our hub locations are Denver, CO; San Francisco, CA; Nashville, TN; and Santiago, Chile. Individuals are expected to work from the office 3+ days a week. In-office perks are provided, such as lunch five times a week, a commuter stipend, and an abundance of snacks and beverages. A relocation stipend may be available for those willing to relocate to a Checkr hub location.

Equal Employment Opportunities at Checkr
Checkr is committed to building the best product and company, which requires hiring talented and qualified individuals with a diverse set of perspectives and lived experiences. Checkr believes in hiring people of all backgrounds, including those whose histories are impacted by the justice system in accordance with local, state, and/or federal laws, including the San Francisco’s Fair Chance Ordinance.

Applicant Privacy Policy
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*Legitimate Checkr emails will always include our official domain name after the @ symbol (e.g., [email protected] or [email protected]).