Senior Software Engineer - Platform & Infrastructure

Responsibilities

• Own and evolve the reliability posture of the ModernFi network (observability, incident response, SLOs, and on-call practices)
• Lead the buildout of a more advanced release pipeline with merge queues, feature-flag tooling, and per-domain release gates for highest-stakes services
• Take ownership of cloud platform, Pulumi modules, AWS account structure, identity, networking, and tooling for product engineers
• Drive security and compliance posture: Vanta remediation, SOC 1/2 readiness, vulnerability scanning, secrets and key management, and hardening across the stack
• Upgrade on-call tooling, runbooks, rotations, and postmortems while participating in infrastructure on-call rotation
• Partner with product engineering pods to ship abstractions that reduce platform drag
• Cultivate operational excellence through code reviews, design discussions, and mentorship

Requirements

• 5+ years of software engineering experience with significant time on infrastructure, platform, or reliability-focused work in production
• Deep fluency with cloud infrastructure (AWS preferred), infrastructure-as-code (Pulumi, Terraform), and modern CI/CD pipelines
• Security mindset with familiarity in SOC 2, compliance tooling like Vanta, secrets management, key rotation, and least-privilege access
• Hands-on experience with modern observability stack (Datadog, Prometheus + Grafana, Elastic stack) and track record of setting observability standards, defining SLOs, running postmortems
• Comfortable owning systems end-to-end from IaC provisioning to recovery runbooks
• Experience in small, fast-moving engineering teams with track record of improving reliability
• Excellent communication skills and ability to explain complex concepts clearly

Tech Stack

• AWS / Pulumi IaC
• PostgreSQL (RDS), ECS, Docker
• Temporal
• Python (FastAPI, SQLAlchemy)
• Datadog, PagerDuty, GitHub Actions
• Auth0, Vanta, Fern