Senior Software Engineer (Onboarding)

About this role

• As a Senior Software Engineer, you will be leveraging your experience working within a service-oriented architecture
• You will be responsible for separating data and functionality as necessary, and will demonstrate an understanding and use of automated testing as a productivity multiplier
• You are eager to learn and passionate about improvement
• You want to understand how systems work, and you think about how to make them work even better
• You will work closely with product managers, designers and other engineers to scope, design, and build new features and functionality
• You will be working primarily on backend systems
• We’re currently using Ruby on Rails as our main language, but prior experience in RoR is not a requirement
• The Onboarding teams transform a weeks-long, support-heavy onboarding process into a fully self-serve experience, leveraging AI-powered data ingestion and real-time validation to take companies from signed contract to running payroll in a matter of days
• A core part of this work is unifying how people join Justworks — today, full-time, contractor, and international hires across PEO, ASO, and EOR each follow entirely different flows, and this role brings them all into one
• Ultimately, this is about building the first product experience every new customer has
• If onboarding feels hard, nothing else matters — making this role a direct driver of activation rate, time-to-first-payroll, and onboarding completion
• Collaborate with a cross functional team to design a next-generation platform to unlock new business capabilities
• Take ownership of designing and implementing APIs, systems integrations and backend services
• Promote engineering excellence through technical leadership, knowledge-sharing and mentorship
• Instate best-practices observability and monitoring as “first principles” of all our services
• Keep extremely sensitive data compartmentalized and secure
• Perform other related duties as assigned
• Technologies Used
• Langua...