Why This Job is Featured on The SaaS Jobs
Checkr Trust sits in a distinct corner of the SaaS landscape where product value is tied to risk signals and decisioning. The role is notable because it supports a product that must translate complex, high-volume data into dependable APIs and workflows that other SaaS businesses can embed. The “start-up lab” framing also signals a hybrid environment: a smaller product surface with meaningful autonomy, backed by an established platform.
For a SaaS engineer, the long-term career upside is in building the muscles that matter across modern B2B software: shipping customer-facing capabilities end to end, integrating third-party services, and treating experimentation as part of delivery rather than an afterthought. Work that spans product discovery through production reliability tends to transfer well to SaaS companies where engineering is measured on adoption, retention, and operational quality.
This position fits senior builders who prefer owning outcomes over narrowly scoped tickets, and who enjoy collaborating across customer, product, and engineering lines. It will suit someone comfortable working with ambiguous requirements, making pragmatic tradeoffs, and improving systems that need to stay resilient under heavy traffic and real-world edge cases.
The section above is editorial commentary from The SaaS Jobs, provided to help SaaS professionals understand the role in a broader industry context.
Job Description
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
