Backend Infrastructure Engineer

PROSTAFF; New York (NY); On-site; USD 140,000 - 200,000; Full time

Job summary

PROSTAFF is seeking a Backend Infrastructure Engineer to build the core platform from the ground up in New York. This early‑stage, high‑agency role puts you at the center of architecture, reliability, and scale for our enterprise infrastructure.

You’ll own AWS‑based scalability, multi‑tenant deployment patterns, and the IaC stack (Terraform, Kubernetes, Docker), turning deployment learnings into reusable platform primitives while shaping the long‑term architecture with clear communication.

Qualifications

• 3–6+ years building production infrastructure.
• Proven 0→1 platform experience designing systems, not only maintaining them.
• Deep AWS experience with containerized, distributed systems (Kubernetes, Fargate, EKS).
• Terraform or equivalent IaC expertise with strong architectural judgment.
• A genuine, conversational communicator, we value clarity over scripts.
• CS, Computer Engineering, or equivalent technical background.

Responsibilities

• Architecting and scaling our AWS-based infrastructure for rapid customer growth.
• Designing and maintaining multi-tenant deployment patterns: permissioning, isolation, redeployability.
• Owning our infrastructure-as-code layer (Terraform, Kubernetes, Docker) and setting standards for reliability and scale.
• Building new backend capabilities as signal comes in from enterprise design partners.
• Turning bespoke customer deployment learnings into reusable platform primitives.
• Making foundational architectural decisions in a zero-guardrail, early-stage environment.

Skills

Platform design

Distributed systems

Architectural judgment

Communication

CS/CE background

Education

CS/Computer Engineering degree

Tools

AWS

Kubernetes

Docker

Terraform

Fargate

EKS

Job description

Backend Infrastructure Engineer — Build the Core Platform (0→1)

We’re hiring a Backend Infrastructure Engineer who wants to build a platform from the ground up, not maintain one. This is a high‑agency role as one of our first engineering hires, owning the architecture, reliability, and scaling their core enterprise infrastructure.

Our clients product is the context layer for human work: multi‑tenant deployments, 800M+ data rows, and a rapidly expanding customer footprint. We need someone who has built foundational systems before and can make architectural decisions that define the platform for years.

What you will own

• Architecting and scaling our AWS‑based infrastructure for rapid customer growth
• Designing and maintaining multi‑tenant deployment patterns: permissioning, isolation, redeployability
• Owning our infrastructure‑as‑code layer (Terraform, Kubernetes, Docker) and setting standards for reliability and scale
• Building new backend capabilities as signal comes in from enterprise design partners
• Turning bespoke customer deployment learnings into reusable platform primitives
• Making foundational architectural decisions in a zero‑guardrail, early‑stage environment

What we’re looking for

• 3–6+ years building production infrastructure, not just operating it
• Proven 0→1 platform experience designing systems, not only maintaining them
• Deep AWS experience with containerized, distributed systems (Kubernetes, Fargate, EKS)
• Terraform or equivalent IaC expertise with strong architectural judgment
• A genuine, conversational communicator, we value clarity over scripts
• CS, Computer Engineering, or equivalent technical background