Senior Infrastructure Engineer

Casca; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity opportunity

Professional growth

Culture of innovation

Job summary

Casca is building AGI for banking, replacing legacy systems with AI-native infrastructure. We seek a Senior Infrastructure Engineer to own the foundations powering our AI-driven lending platform, including cloud, CI/CD, deployment automation and observability.

You'll write production-grade code, tackle distributed system challenges, and drive decisions that improve reliability, security and compliance across fast-paced fintech environments.

Qualifications

• 5+ years in infrastructure, platform engineering, or SRE roles.
• Production-grade automation experience with Python/Go/TypeScript/Rust.
• Strong AWS experience and core services knowledge.
• Proficiency with IaC tools and CI/CD systems.
• Hands-on with containers (Docker) and orchestration.

Responsibilities

• Own infrastructure-as-code for AWS and Cloudflare.
• Design and maintain CI/CD pipelines and deployment automation.
• Improve observability with metrics, logging, tracing, and alerts.
• Develop internal tooling to reduce toil and accelerate workflows.
• Drive reliability improvements including capacity planning and DR.
• Collaborate with product engineers to balance speed and maintainability.
• Contribute to security and compliance initiatives in fintech environment.

Skills

Infrastructure engineering

Python

Go

TypeScript

Rust

Cloud platforms (AWS)

IaC (Terraform, CDK, Pulumi)

CI/CD

Observability

Docker

Distributed systems

Tools

Terraform

CDK

Pulumi

Job description

Why Casca?

Casca is building AGI for banking. We're replacing decades-old legacy systems with AI-native technology that automates 90% of the manual work humans once had to do.

Role Overview

We're looking for a Senior Infrastructure Engineer to own and evolve the foundational systems that power Casca's AI-driven lending platform. You'll build and maintain the infrastructure that enables our engineering team to ship quickly and reliably - cloud infrastructure, CI/CD pipelines, deployment automation, and observability systems. You thrive on making other engineers more productive while ensuring our platform remains secure, compliant, and highly available. This is a hands-on role. You'll write significant code, debug complex distributed systems issues, and drive technical decisions that impact the entire engineering organization.

What You'll Do

• Own infrastructure-as-code (AWS CDK, Terraform or Pulumi) for cloud resources across AWS and Cloudflare.
• Design, build, and maintain CI/CD pipelines and deployment automation that enable fast, safe releases across multiple environments.
• Build and improve observability systems - metrics, logging, tracing, and alerting - that give engineers deep visibility into system behavior and enable rapid incident response.
• Develop internal tooling and automation that eliminates toil and accelerates developer workflows.
• Drive reliability improvements: capacity planning, failure mode analysis, disaster recovery, and incident response processes.
• Collaborate with product engineers to design systems that are operationally sound from day one - balancing speed of delivery with long-term maintainability.
• Contribute to security and compliance initiatives, ensuring infrastructure meets the requirements of a regulated fintech environment.

What You'll Bring

• 5+ years of experience in infrastructure, platform engineering, or SRE roles, with a track record of building systems that other engineers depend on daily.
• Strong coding skills in at least one of: Python, Go, TypeScript, or Rust. You write production-quality automation, not just glue scripts.
• Deep experience with cloud platforms (AWS preferred) and their core services - compute, networking, IAM, managed databases, and storage.
• Proficiency with infrastructure-as-code tools (Terraform, CDK, Pulumi) and CI/CD systems (GitHub Actions, BuildKite, or similar).
• Solid understanding of containerization (Docker) and container orchestration concepts, with hands-on experience running production workloads.
• Experience building and operating observability stacks - you've instrumented systems, built dashboards, and used telemetry data to diagnose production issues.
• Familiarity with common failure modes in distributed systems and strategies to mitigate them (blast radius control, graceful degradation, rollback mechanisms).
• Comfortable working in a fast-paced environment where you'll need to balance "doing it right" with "shipping it now."

Nice to Have

• Experience in regulated industries such as fintech or healthcare where security and compliance are first-class concerns.
• Familiarity with ML pipeline orchestration.
• Experience with multi-tenant SaaS architectures and customer-specific deployment requirements.
• Contributions to on-call rotations and incident response in high-stakes production environments.

What You'll Get

• Impact & Ownership: A unique opportunity to shape the future of banking through AI, owning end-to-end product initiatives.
• Collaborative Environment: Work alongside a talented and passionate team that values continuous improvement and knowledge sharing.
• Competitive Compensation: Includes salary, benefits, and potential equity in a fast-growing startup.
• Professional Growth: Access to resources and mentorship to expand your skill set, influence strategy, and accelerate your career.
• Culture of Innovation: We encourage risk-taking, learning from failures, and pushing the boundaries of what's possible in fintech.

As an early-stage company building at the frontier of AI, we work with high intensity and commitment. While schedules can vary by role/team, many weeks will demand extra focus, flexibility and time particularly during major launches and high-impact sprints. We're seeking those who are aligned to and able to commit to that expectation.