Senior Software Engineer

Role overview

Senior Software Engineer joining Jona’s growing team to build reliable, performant, and scalable systems across the product. You’ll work across the stack—TypeScript APIs and modern React frontends—to help define architecture, improve developer experience, and raise code quality.

Responsibilities

• Drive technical decisions: propose, architect, and implement projects; design/maintain scalable systems and APIs
• Modernize legacy systems and ensure adherence to best practices
• Collaborate cross-functionally with product, design, and engineers to deliver user-facing and internal features
• Build, test, and deploy across frontend and backend; ensure code is performant, accessible, and maintainable
• Take ownership through production and improve the software delivery process
• Improve developer experience, including CI/CD pipelines and internal tooling
• Identify and resolve performance bottlenecks across client and server

What you’ll bring

• 5+ years building modern TypeScript web applications
• Strong React and Node.js knowledge
• Experience designing/integrating RESTful and RPC-style APIs
• Strong SQL knowledge (PostgreSQL preferred) and data modeling best practices
• Understanding of relational and non-relational databases
• Familiarity with modern CI/CD pipelines (especially GitHub Actions)
• Experience deploying production workloads on AWS
• Improving codebases via testing, observability, and refactoring
• Strong communication and collaboration with a product-minded approach
• Understanding of security issues and responsibilities

Nice to have

• Experience in a regulated environment (e.g., HIPAA)
• Experience with: Next.js, Nest.js, Effect, Drizzle, Pulumi

Additional details

• Remote role with optional/regular monthly meetups in New York City
• Competitive compensation with salary and meaningful equity; full benefits (medical/dental/vision)