Senior Software Engineer, Criminal Screenings
Role summary
Checkr is seeking a Senior Software Engineer to advance its data platform. This role involves collaborating with engineers and product teams to architect and deliver new platform capabilities and product initiatives. The engineer will focus on modernizing the technical stack, simplifying architecture, and automating workflows for scalability and efficiency. Responsibilities include developing new features from design to release, balancing speed with long-term growth, ensuring system availability through on-call rotations and incident response, and providing mentorship to other engineers. The ideal candidate has 5+ years of backend development experience with proficiency in Ruby, Golang, or JavaScript/TypeScript, and a strong understanding of CS fundamentals, databases, data structures, algorithms, and APIs.
About CheckrCheckr is building the data platform to power safe and fair decisions. Over 140,000 companies and millions of people rely on Checkr for AI verification in the moments that matter most: getting a new job, a new place to live, a car ride, childcare, even a date. Customers include Uber, Pennymac, Airbnb, Doordash, Amazon, 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.
As a Senior Software Engineer at Checkr, you will play a crucial role in advancing our product in our mission to create the data platform of the future. Across the product development lifecycle, you will collaborate with other engineers and product counterparts to architect and deliver new platform capabilities and key product initiatives. Your passion for technical excellence will drive progress in modernizing our technical stack, simplifying system architecture, and automating manual workflows to ensure our platform's scalability and efficiency.
The Criminal Screenings team is on a mission to orchestrate and deliver the world’s most trusted background check and criminal screening reports, building best-in-class, scalable products that are transparent and accessible to everyone at Checkr.
We own market-leading criminal screening coverage across National Criminal searches, Watchlist, Sex Offender Registry, and jurisdictional workflows—including federal, state, county, and municipal levels—with a strong focus on accuracy, fairness, and fast turnaround times. If you’re passionate about building automation-first solutions, driving radical transparency, and creating delightful experiences that help millions of people get hired fairly, we’d love to have you join our team.
What you'll do:
What you bring:
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Pay Transparency Disclosure
We use geographic cost of labor as an input to develop ranges for our roles and as such, each location where we hire may have a different range. If this role is remote, we have listed the top to the bottom of the possible range, but we will specify the target range for an exact location when you are selected for a recruiting discussion. For more information on our compensation philosophy, see our website.
What We Offer
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 CheckrCheckr 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 PolicyIf you are a California resident or are located in Alberta or British Columbia, our Applicant Privacy Policy applies to our collection and processing of your personal information when you apply for a role with us or otherwise participate in our recruitment process.
*Legitimate Checkr emails will always include our official domain name after the @ symbol (e.g., name@checkr.com or name@ext.checkr.com).
Sample Checkr interview questions
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Continuous Subarrays Sum Equals K Find the total number of continuous subarrays whose sum equals K. Input: nums = [1,2,3], k = 3 Output: 2 Explanation: Both the contiguous subarray [1,2] and the single-element subarray [3] sum perfectly to the target of 3.
codingmedium - 2
Dot Product of Two Sparse Vectors Calculate the dot product of two sparse vectors. Input: nums1 = [0,1,0,0,2], nums2 = [0,0,0,0,5] Output: 10 Explanation: Multiplies the aligned non-zero values (2 * 5) and ignores all the zeros, yielding a dot product of 10.
codingmedium - 3
Alien Dictionary Order Derive the alien dictionary order from a sorted list of alien words. Input: words = ["z","x","z"] Output: "" (Empty String) Explanation: The letter 'z' cannot come before 'x' and then suddenly after 'x', creating a cycle and making the dictionary invalid.
codingmedium - 4
Palindrome After Deleting One Character Determine if a string can be a palindrome after deleting at most one character. Input: s = "abc" Output: FALSE Explanation: Deleting any single character leaves either "ab", "bc", or "ac", none of which result in a valid palindrome.
codingmedium - 5
Split Array into Consecutive Subsequences Split an array into consecutive subsequences. Input: nums = [1,2,3,4,4,5] Output: FALSE Explanation: The numbers can form [1,2,3,4], but the remaining leftover group [4,5] is too short to form a valid sequence of length 3.
codingmedium
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