Typescript Backend Engineer

Plexus Resource Solutions Ltd; New York (NY); On-site; USD 140,000 - 200,000; Full time

Job summary

Plexus Resource Solutions Ltd is seeking a Senior Backend Engineer to own core backend systems in NYC, shaping foundational architectural decisions and building reliable infrastructure. It is a hands-on role within a small, senior team and requires US work authorization.

The role focuses on TypeScript/Node.js backend development, scalable distributed systems, and integration with complex external financial systems. Onsite in NYC with high autonomy and ownership.

Qualifications

• 5+ years of software engineering experience.
• Production experience with payments infrastructure.
• Strong TypeScript/Node.js backend experience.

Responsibilities

• Design and build core backend systems handling high-volume transactions.
• Own systems end-to-end across APIs, infrastructure, deployment, and reliability.
• Integrate with complex external financial systems.
• Drive backend architecture and engineering best practices.

Skills

Payments infrastructure

Distributed systems

Backend engineering

Node.js

TypeScript

Tools

AWS

Kubernetes

Terraform

Temporal

Solana

Rust

Job description

Senior Backend Engineer (NYC)

(ONSITE IN NYC| MUST HAVE USWORK AUTHORISATION)

Plexus is partnered with a rapidly growing, venture-backed startup building critical financial infrastructure.

Overview:

We're looking for a Senior Backend Engineer to own core systems, make foundational architectural decisions, and build reliable infrastructure at scale. This is a highly hands-on role within a small, senior team.

Responsibilities:

• Design and build core backend systems handling high-volume transactions.
• Own systems end-to-end across APIs, infrastructure, deployment, and reliability.
• Integrate with complex external financial systems.
• Drive backend architecture and engineering best practices.

Requirements:

• Proven payments infrastructure experience in production.
• 5+ years of software engineering experience preferred.
• Strong TypeScript / Node.js backend experience.
• Experience building scalable, distributed systems.

Bonus:

• Crypto, Solana, or Rust experience.
• Experience with AWS, Kubernetes, Terraform, or Temporal.

Why Join:

• Build critical infrastructure from the ground up.
• High autonomy and ownership within a small, senior team.