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Backend Software Engineer II

Denver, California, United StatesOnsiteFull Time$127,000–$176,000 /yrPosted 2 months agoVisa sponsorship availableHidden Gem · YC Startup

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Role summary

Checkr is seeking a Backend Software Engineer II to join their team. This role involves owning product development from design to release, collaborating with cross-functional teams, and delivering high-quality, scalable, and secure code. The engineer will work with a tech stack including Ruby, Javascript, SQL, NoSQL databases, and message queues. Responsibilities include designing, developing, testing, deploying, maintaining, and improving products, as well as monitoring and resolving production issues. The role emphasizes a customer-centric, product-oriented, and experimentation mindset, with a focus on quality and a strong sense of ownership. The position is hybrid, requiring 3 days a week in the office.

**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](https://www.forbes.com/lists/cloud100/) and is a Y Combinator 2024 [Breakthrough Company](https://www.ycombinator.com/blog/yc-top-companies-2024).

As a Software Engineer at Checkr, you will work on high impact engineering projects that help build a fairer future for all. You will work in a collection of small services built on Ruby and Javascript, with both SQL and NoSQL databases, as well as message queues for asynchronous tasks. Checkr was founded by engineers for engineers; we want to create the best environment for developers to build, learn and love their work.

**What you’ll do:**

* Own the product development of features from design, implementation, to release
* Partner with product, design and other stakeholders in designing new features
* Collaborate with other engineers in architecting and implementing new features
* Design, develop, test, deploy, maintain, and improve our products
* Deliver performant, reliable, scalable, and secure code capable of supporting hundreds of thousands of transactions a day
* Monitor, investigate, triage, and resolve production issues as they arise for services owned by the team
* Bring a customer-centric, product-oriented mindset to the table - collaborate with customers and internal stakeholders to resolve product ambiguities and ship impactful features
* Experimentation mindset - autonomy and empowerment to validate a customer need, get team buy-in, and ship a rapid MVP
* Quality mindset - you insist on quality as a critical pillar of your software deliverables
* Develop new end to end web applications
* Instrument and deploy new product experiments with a data-driven mindset

**What you bring:**

* 2+ years of full stack software development experience
* Proficiency in Ruby and Javascript (or similar languages/frameworks)
* Proficiency with test frameworks and automation (e.g. Cypress)
* Passionate about XP practices, Domain Driven Design, and Continuous Delivery
* Experience developing RESTful APIs
* Bonus points for experience with in-house component-based design systems
* Strong documentation skills
* A strong sense of ownership from feature design through production release
* A desire to collaborate with external stakeholders
* An eagerness to learn, collaborate, improve, innovate, and have fun
* 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

**What you’ll 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

**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 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](https://checkr.com/company/careers)._

On-target Earnings OR Base Salary range (San Francisco, CA)

$150,000—$176,000 USD

**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 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](https://checkr.com/company/careers)._

On-target Earnings OR Base Salary range (Denver, CO)

$127,000—$149,000 USD

_At Checkr, we believe a hybrid 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_](http://sfgov.org/olse/sites/default/files/Document/FCO%20Art.%2049%20Official%20Notice%20to%20print%202017.pdf)_._

**Applicant Privacy Policy**\
If you are a California resident or are located in Alberta or British Columbia, our [Applicant Privacy Policy](https://checkr.com/legal/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.

Sample Checkr interview questions

  • 1

    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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