Software Engineer – Backend / Full Stack

A4Assist; New York (NY); Hybrid; USD 180,000 - 230,000; Full time

Benefits offered by this job

Competitive equity

Job summary

A4Assist in New York, NY is seeking a Backend / Full Stack Software Engineer to design and own scalable backend services and APIs, from architecture through production. You will work across the stack with product and engineering leadership, influencing architectural decisions and contributing to a fast-moving platform.

Join a high-autonomy team with exposure to fintech-like infrastructure and a strong emphasis on building robust, observable systems.

Qualifications

• 2-10 years of backend software engineering experience.
• Experience at a reputable, growing technology company or high-impact startup.
• Proven experience building and owning scalable backend systems end-to-end.
• Bachelor's degree in Computer Science or another technical field.
• Production experience with Docker and Kubernetes.
• Strong technical communication and problem-solving skills.
• Comfortable participating in technical discussions and architectural decisions.
• Willingness to work 4 days per week onsite in NYC (Monday-Thursday).
• Experience with Go or Node.js is strongly preferred.

Responsibilities

• Build and own backend services and components end-to-end.
• Design scalable APIs, backend systems, and infrastructure.
• Contribute to architecture decisions and engineering standards.
• Improve monitoring, alerting, and observability.
• Work across different areas of the platform.
• Collaborate closely with product and engineering leadership.
• Make technical decisions and communicate architectural tradeoffs clearly.

Skills

Backend development

System design

Go

Node.js

Education

Bachelor's degree in Computer Science

Tools

Docker

Kubernetes

Job description

Software Engineer - Backend / Full Stack

We're looking for a talented Backend / Full Stack Software Engineer to join a fast-growing technology company building scalable financial infrastructure and payment systems.

This is a high-autonomy engineering role where you'll work closely with technical and product leadership, own systems from architecture through production, and have a direct impact on what gets built.

Why This Role?

• Own systems end-to-end - architecture, development, deployment, and production
• Work on financial infrastructure and payment systems at meaningful scale
• Have a direct voice in technical and product decisions
• Work closely with engineering and product leadership
• Join a fast-moving, high-impact engineering environment
• Participate in architecture discussions, whiteboarding, and technical debates
• Build scalable systems supporting a growing platform
• Work across the technology stack rather than being limited to a narrow product area

What You'll Do

• Build and own backend services and components end-to-end
• Design scalable APIs, backend systems, and infrastructure
• Contribute to architecture decisions and engineering standards
• Improve monitoring, alerting, and observability
• Work across different areas of the platform
• Collaborate closely with product and engineering leadership
• Make technical decisions and communicate architectural tradeoffs clearly

What We're Looking For

Required:

• 2-10 years of backend software engineering experience
• Experience at a reputable, growing technology company or high-impact startup
• Proven experience building and owning scalable backend systems end-to-end
• Bachelor's degree in Computer Science or another technical field
• Production experience with Docker and Kubernetes
• Strong technical communication and problem-solving skills
• Comfortable participating in technical discussions and architectural decisions
• Willingness to work 4 days per week onsite in NYC (Monday-Thursday)

Strongly Preferred:

• Hands-on experience with Go or Node.js
• Fintech, payments, banking, or financial infrastructure experience
• Experience with AWS and Terraform
• Experience building distributed or highly scalable systems
• Experience at a VC-backed startup or rapidly growing technology company

$180K-$230K base salary + competitive equity

Compensation may flex higher for exceptional candidates based on experience and interview performance.

Location: New York, NY

Schedule: Monday-Thursday onsite, Friday remote

Employment: Full-time

Visa: Visa transfers may be considered

Interested?

If you're an engineer who enjoys owning problems end-to-end, making architectural decisions, building scalable systems, and working in a high-autonomy environment, we'd love to hear from you.