Software Engineer

maegnet; New York (NY); On-site; USD 120,000 - 160,000; Full time

Job summary

A cutting-edge technology company seeks a Senior Backend Engineer to join an infrastructure team focused on developer-first commerce systems. This role requires 8+ years of experience, strong proficiency in Node.js and Postgres, and expertise in complex products. You'll design backend systems, collaborate with product teams, and influence architectural decisions. Ideal candidates thrive in high-ownership environments and have a passion for solving technical challenges. This position is based in New York with a strong emphasis on ownership and collaboration.

Qualifications

• 8+ years of backend engineering experience with strong proficiency in Node.js or Postgres.
• Experience working with complex products, such as orchestration tooling or payments infrastructure.
• Strong individual contributor background; recent roles should be hands-on.

Responsibilities

• Design, build, and maintain backend systems using Node.js and Postgres.
• Architect and evolve complex distributed systems that support large-scale workflows.
• Collaborate closely with product and developer experience teams.

Skills

Backend engineering experience

Node.js proficiency

Postgres proficiency

Complex problem solving

Strong communication skills

Job description

We're looking for a Senior Backend Engineer to join a fast-moving infrastructure team building highly flexible, developer-first commerce systems. This role is ideal for someone who thrives in high-ownership environments, enjoys solving complex technical challenges, and has deep experience working on products with significant architectural complexity.

Responsibilities:

• Design, build, and maintain backend systems using Node.js and Postgres
• Architect and evolve complex distributed systems that support large-scale workflows, data models, and APIs
• Collaborate closely with product and developer experience teams to deliver features that unlock new capabilities for customers
• Work with early customers to understand use cases and guide them through architectural decisions
• Build reliable, performant services with strong observability, testing, and security practices
• Contribute to internal engineering standards, tooling, and documentation
• Identify bottlenecks, propose solutions, and drive improvements across the infrastructure
• Help shape foundational components of a managed services platform for hosted commerce infrastructure

Must-Haves:

• 8+ years of backend engineering experience with strong proficiency in Node.js or Postgres
• Based in East Coast Americas or Europe
• Experience working with complex products, such as:
• Orchestration or workflow tooling (e.g., Temporal, Alloy)
• Payments infrastructure (e.g., Stripe, Checkout, Adyen)
• Delivery or ride-sharing applications

Experience scaling early-stage startups, ideally from Seed through Series A/B

Strong individual contributor (IC) background; recent roles should be hands-on

Familiarity with e-commerce, payments, logistics, or API-driven infrastructure is a plus

Nice-to-Haves:

• Based in NYC
• IC (individual contributor)role in the last two positions
• Ex-CTO or founder experience
• Experience with distributed systems

What You'll Bring:

Strong technical judgment with the ability to simplify complex problems

A product mindset and deep appreciation for developer experience

High ownership, autonomy, and a bias for action

Excellent communication and cross-functional collaboration skills

Why This Role Is Exciting:

You'll be working on the core technology behind a new generation of commerce infrastructure. You'll have meaningful ownership over architecture, influence foundational engineering decisions, and contribute to a team that values craftsmanship, speed, and clarity.