Senior Software Engineer, Trust

About Checkr Checkr is building the data platform to power safe and fair decisions. Established in 2014, 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 DoorDash, Coinbase, Lyft, Instacart, and Airtable. 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 you get: A fast-paced and collaborative environment Learning and development allowance Competitive 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 Working at a startup within a startup Pay Transparency Disclosure One of Checkr’s core values is Transparency. To live by that value, we’ve made the decision to disclose salary ranges in all of our job postings. We use geographic cost of labor as an input to develop ranges for ... (truncated, view full listing at source)