Senior Full-Stack Software Engineer

8am is a company focused on building SaaS products that enhance professional workflows. They are seeking a Senior Full-Stack Software Engineer to design, build, and scale technology solutions that improve user experiences and support multiple product initiatives.

Responsibilities:

• Design and implement scalable web applications using modern frameworks such as Ruby on Rails, React, Node/NestJS, and NextJS
• Modernize existing applications to enhance user experience, performance, and long-term maintainability
• Utilize, contribute to, and evolve reusable UI component libraries
• Work closely with UX partners to design and ship intuitive, high-quality user experiences
• Contribute to core platform capabilities that support multiple products (e.g., identity, authentication, APIs, shared services)
• Help define and evolve backend architectures that enable scalability, reliability, and sustainable growth
• Proactively identify and implement improvements to application performance, scalability, and maintainability
• Design, build, and maintain backend services and RESTful APIs
• Build or contribute to iOS and Android mobile applications using Expo / React Native, as applicable
• Evaluate and implement AI-powered features where they create meaningful customer and business value
• Stay current with emerging technologies and apply them thoughtfully to real-world problems
• Partner with product managers to assess trade-offs, identify risks, and align technical solutions with business goals
• Collaborate with engineers, designers, QA, DevOps, and cross-functional stakeholders to deliver outcomes—not just features
• Support software deployments through debugging, troubleshooting, and coordination with DevOps and QA teams
• Participate in Agile ceremonies including sprint planning, grooming, and retrospectives
• Mentor and coach other engineers, sharing best practices and helping raise the technical bar across the team
• Provide technical expertise in software architecture, design patterns, and maintainable system design

Requirements:

• Bachelor's degree in Computer Science or a related field, or equivalent professional experience
• 7+ years of experience designing, building, and debugging large-scale, cloud-based applications (with flexibility for deeper senior-level experience)
• Experience building production-grade applications with React, including reusable components, complex state management, and performance optimization, with comfort contributing across the full stack
• Professional experience building and maintaining backend services using Ruby on Rails (or deep experience with a comparable MVC framework)
• Solid understanding of SOLID principles, software design patterns, and scalable architecture
• Proficiency in SQL and experience working with relational databases such as PostgreSQL or MySQL
• Experience working in Agile / Lean product development environments (Scrum, Kanban)
• Comfortable leveraging AI tools and technologies to improve workflows, productivity, or product capabilities
• Excellent communication, collaboration, and documentation skills
• Demonstrated experience leveraging AI tools and technologies to improve workflows, enhance decision-making, or drive innovation
• Experience designing and building distributed systems or shared platform services
• Familiarity with authentication and authorization standards (OAuth 2.0, OIDC, SAML)
• Experience with asynchronous messaging systems (e.g., Kafka, AWS SQS)
• Experience with cloud platforms such as AWS or Google Cloud Platform
• Experience with NodeJS, NextJS, and modern frontend technologies (Bootstrap, Tailwind)
• Experience building mobile applications using Expo / React Native
• Experience deploying applications with Docker and Kubernetes
• Background building scalable SaaS products