Senior Software Engineer - Distributed Systems (Remote)

Cast AI; United States; Remote; USD 81,000 - 112,000; Full time

Benefits offered by this job

Remote-first

Equity options

Learning budget

Hackathon

Team events

Equipment budget

Extra days off

Job summary

Cast AI is seeking a Senior Software Engineer to help build the Agent Platform, an infrastructure layer enabling scalable agent fleets across cloud and self-hosted environments. You will own features end-to-end from design to production rollout, across multiple tech stack components.

This role emphasizes security, observability, and rapid delivery in a remote-first environment. You will collaborate with product and other engineering teams to solve problems without textbook solutions, delivering

Qualifications

• Production experience with Go or TypeScript is strongly preferred; candidates without either should demonstrate strong systems programming skills in a comparable language.
• Strong debugging, optimization, and performance-tuning skills.
• Hands-on experience with cloud platforms (AWS, GCP, or Azure) and Kubernetes is a strong plus.
• Observability tooling (Prometheus, Grafana, OpenTelemetry), CI/CD and DevOps practices experience.
• Startup mindset: adaptable, proactive, and comfortable with ambiguity.
• Strong English skills, both verbal and written.
• You’ve personally driven a complex project end-to-end.
• (Agent Platform) Experience in virtualization, networking, security, and Kubernetes internals is a strong plus

Responsibilities

• Design and build distributed systems that run agent fleets at scale across cloud and self-hosted environments, with security at its core
• Make every agent action observable, auditable, and governable
• Develop a remote-first experience of working with agents

Skills

Go

TypeScript

Systems programming

Cloud platforms

Kubernetes

Observability tooling

CI/CD

English skills

End-to-end ownership

Tools

Prometheus

Grafana

OpenTelemetry

Job description

Cast AI is seeking a Senior Software Engineer to help build the Agent Platform, an infrastructure layer enabling scalable agent fleets across cloud and self-hosted environments. You will own features end-to-end from design to production rollout, across multiple tech stack components.

This role emphasizes security, observability, and rapid delivery in a remote-first environment. You will collaborate with product and other engineering teams to solve problems without textbook solutions, delivering