Software Engineer – Backend / Full Stack

A4Assist
New York, New York, United StatesFull-time$180,000–$230,000Posted Sep 18, 2026

About the role

🚀 Software Engineer – Backend / Full Stack

📍 New York, NY | 4 Days Onsite | 💰 $180K–$230K Base + Equity | Full-Time

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

Take projects from design → development → deployment → production

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

Tech Stack

Go • Node.js • Docker • Kubernetes • Terraform • PostgreSQL • REST APIs • gRPC • AWS

💰 Compensation & Work Model

$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.

Apply now to learn more.

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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
  • Take projects from design to development to deployment to production
  • 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

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

Benefits

  • Competitive equity
  • Flexible compensation for exceptional candidates

Skills mentioned

GoNode.jsDockerKubernetesTerraformPostgreSQLREST APIsgRPCAWSDistributed Systems

About A4Assist

A4assist is a leading outsourcing firm that offers virtual services in the sectors of BPO, RPO, and KPO. Our expert team has extensive experience in providing clients with the finest and most customized solutions. We understand the importance of customer satisfaction, which is why we aim to provide high-quality service at all times. No mobile information will be shared with third parties/affiliates for marketing/promotional purposes.

Outsourcing and Offshoring Consulting11-50 employeesNew York City, New York