Senior Backend Engineer - Build Scalable APIs (Remote)

Duna; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Duna is a remote-first, fast-moving team of builders seeking exceptional people who love to create, build, and ship. We value curiosity, authenticity and kindness as core culture.

This role is about owning production-grade backend systems, shaping architecture, and delivering high-trust APIs in a modern stack. Join us to contribute from anywhere in the US, collaborate deeply, and grow with ambitious teammates who push boundaries while maintaining a human-focused approach to product and

Qualifications

• Senior or staff-level experience building and owning production systems.
• Systems thinking—you see beyond features to long-term system behaviour.
• Clear communicator who enjoys breaking down complexity and collaborating deeply.
• Appetite for learning and working in ambiguity.
• Curiosity, big ambitions, kindness.
• Bonus if you've built AI features and the evaluations behind them, or worked on product analytics.

Responsibilities

• Design and build backend systems that are clean, testable, and efficient.
• Architect scalable APIs and infrastructure for high-trust environments.
• Own core systems end to end, and stay hands-on in the code.
• Bring strong opinions on testing, quality, and long-term maintainability.
• Tackle complex product challenges with a user-first mindset.
• Shape our engineering practices and technical culture.

Skills

Senior/Staff level experience

Systems thinking

Clear communication

Ambiguity handling

Curiosity

Big ambitions

Kindness

Tools

Node.js

TypeScript

Express

Postgres

RabbitMQ

Kubernetes

AWS

Job description

Duna is a remote-first, fast-moving team of builders seeking exceptional people who love to create, build, and ship. We value curiosity, authenticity and kindness as core culture.

This role is about owning production-grade backend systems, shaping architecture, and delivering high-trust APIs in a modern stack. Join us to contribute from anywhere in the US, collaborate deeply, and grow with ambitious teammates who push boundaries while maintaining a human-focused approach to product and