# Senior Software Engineer

**Company:** [Checkr](https://hotfix.jobs/companies/checkr)
**Location:** San Francisco, CA
**Role:** Fullstack Engineering
**Salary:** $185k – $218k/yr
**Experience:** 5+ years
**Skills:** Ruby, Ruby on Rails, JavaScript, React, REST APIs, API Integrations, asynchronous architecture, Event-Driven Architecture, Observability, container orchestration, Data Analysis, web scraping
**Posted:** 2026-08-03

> Build and own end-to-end full-stack products, APIs, and event-driven systems in Checkr’s Trust startup lab. The role requires 5+ years of experience, strong Ruby/Rails and JavaScript/React skills, startup adaptability, and a customer-centric experimentation mindset.

## Job Description

## Responsibilities
- Work closely with customers, engineers, and leaders to design, build, and launch new products.
- Own the end-to-end development process for applications, from shaping ideas through delivery.
- Build and improve APIs, including integrations with third-party services.
- Partner with customer success, customers, and stakeholders to understand needs and deliver useful features.
- Maintain reliable, maintainable code through testing, thoughtful reviews, and sound engineering practices.
- Run and measure product experiments to guide future development.
- Build scalable APIs and asynchronous, event-based architectures capable of handling very high traffic.

## Requirements
- Bachelor's or master's degree in computer science or an engineering discipline.
- Experience founding or working in early roles at successful, fast-paced startups.
- **5+ years** of full-stack software development experience.
- Advanced knowledge of Ruby and Rails, JavaScript, React, or similar languages and frameworks.
- An experimentation mindset and ability to validate customer needs, gain team buy-in, and rapidly ship MVPs.
- Comfort with ambiguity and balancing speed with quality in an early-stage environment.
- Strong ownership, bias for action, resilience, curiosity, and focus on meaningful outcomes.

## Nice-to-Haves
- Experience building scalable architectures for 10 million or more users, including observability tooling and container orchestration.
- Background in trust and safety, identity verification, background-check products, or criminal data.
- Expertise in data analysis and processing.
- Experience building and using scrapers and scraping technology.

## Compensation and Benefits
- Base salary range: **$185,000–$218,000 USD** for San Francisco, CA.
- Competitive cash and equity compensation.
- Learning and development allowance.
- Medical, dental, and vision coverage at 100%.
- Up to $25,000 reimbursement for fertility, adoption, and parental planning services.
- Flexible PTO policy.
- Monthly wellness stipend.
- In-office work is expected at least 3 days per week.

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**Apply:** https://hotfix.jobs/jobs/afa0de65-925f-40a5-a650-e4265b00a52d
**Canonical:** https://hotfix.jobs/jobs/afa0de65-925f-40a5-a650-e4265b00a52d