Onsetto

Job Summary:
Onsetto is a company focused on building the future of business banking by helping financial institutions grow deposits and transform business services. The Engineer II role involves designing, building, and maintaining backend services and APIs, owning system reliability and performance, and working across backend systems and infrastructure with increasing responsibility for system design. The position requires ownership of production systems and collaboration with product and engineering teams to deliver scalable and reliable solutions.
Responsibilities:
• Design, build, and maintain backend services and APIs
• Own specific systems or components, including their reliability in production
• Debug complex issues across services, infrastructure, and data flows
• Improve system performance, scalability, and fault tolerance
• Contribute to CI/CD pipelines, deployment processes, and release quality
• Use LLM tools effectively to accelerate development while maintaining quality
• Participate in incident response and lead root cause analysis efforts
• Collaborate with product and engineering to define clear, testable solutions
• Contribute to system design decisions and technical tradeoffs
Qualifications:
Required:
• 3–5 years of experience building production software systems
• Strong proficiency in at least one backend language (Python preferred)
• Experience designing and building APIs and working with databases
• Solid understanding of system design fundamentals (scalability, reliability, failure modes)
• Ability to debug across layers (application, infrastructure, data)
• Demonstrated ownership of systems or major features
• Comfort working in environments with real operational constraints
Preferred:
• You have owned a system or service in production
• You proactively identify and fix reliability or performance issues
• You think in terms of tradeoffs, not just implementation
• You improve systems beyond your immediate scope
• You use tools (including AI) to increase speed without sacrificing quality
• You help raise the bar for those around you
Company:
Onsetto operates as a business account switching and relationship-primacy platform. Founded in 2024, the company is headquartered in Minneapolis, USA, with a team of 2-10 employees. The company is currently Early Stage.