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About the Role

Checkr Trust is building safer communities by providing customers with risk signals about its users. As a Senior Full Stack Software Engineer, you will play a pivotal role in the continued growth of our startup, taking significant end-to-end ownership from idea to execution and customer impact.

Responsibilities

• 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 product capabilities.
• 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.

Requirements

• BS/MS degree in either computer science or an engineering discipline.
• Have founded or held early roles at successful fast-paced startups.
• 5+ years of full stack software development experience.
• 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.
• 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.

Skills

• Ruby (Rails)
• Javascript (React)

Location

• San Francisco, CA

Work Type

• Onsite (3+ days a week)

Experience Level

• 5+ years of full stack software development experience
• Senior

Education Level

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

Salary/Compensations

• $185,000—$218,000 USD

Benefits

• 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
• Lunch five times a week
• Commuter stipend
• Relocation stipend may be available

About the Company

• Checkr 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.
• Customers include Uber, Pennymac, Airbnb, Doordash, and Anthropic.
• Checkr is recognized on Forbes Cloud 100 2025 List and is a Y Combinator 2024 Breakthrough Company.
• 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.

Equal Opportunity

• 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.