Senior Full-Stack Engineer: Build Scalable Backend & Infra

Untitledinbrackets; New York (NY); Hybrid; USD 150,000 - 230,000; Full time

Benefits offered by this job

Flexible days in office

Free lunch in the office

Competitive salary and equity

Health, dental, and vision insurance

Opportunities for professional growth

Job summary

Untitledinbrackets is seeking a senior full-stack engineer focused on backend, infrastructure, and performance. You will design core systems alongside the founding team, using Remix/React, Postgres, Redis, Node.js, and AWS + Terraform.

The role emphasizes shipping features end-to-end, owning CI and deployment, and improving observability while delivering fast, reliable data delivery. Ideal candidates have 7+ years in backend/infrastructure or startup leadership, fluency in major languages, and a

Qualifications

• 7+ years of backend and infrastructure engineering or equivalent startup/executive experience
• Fluency in at least one major language (Python, TypeScript, Go, Java, C++)
• Strong SQL and NoSQL fundamentals
• Deep database skills: schema design, constraints, migrations, zero-downtime changes
• Experience with AWS, GCP, or Azure
• Experience with containerization and orchestration (Docker, Kubernetes)
• Ability to ship end-to-end features with cross-functional teams
• Proven track record shipping in startups/small teams; ownership of whole features
• Side projects or open source contributions demonstrating impact
• Strong exploratory communication and product-minded thinking
• Comfort with ambiguity and high autonomy
• Knowledge of infrastructure as code (Terraform, Ansible)
• Familiarity with Remix/React, Postgres, Redis, Node.js, cloud tools and observability

Responsibilities

• Design and optimize backend systems for performance, scalability, and reliability
• Ship features end to end with engineers, designers, and founders
• Own CI, testing, and deployment infrastructure
• Improve observability, monitoring, and alerting to respond faster to incidents
• Optimize databases and infrastructure, including caching and connection pooling
• Make real-time, synchronized data delivery feel instant

Skills

Python

TypeScript

Go

Java

C++

SQL

NoSQL

Performance optimization

System design

Cloud fundamentals

Tools

AWS

PostgreSQL

Redis

Docker

Kubernetes

Terraform

Ansible

GCP

Azure

Job description

Untitledinbrackets is seeking a senior full-stack engineer focused on backend, infrastructure, and performance. You will design core systems alongside the founding team, using Remix/React, Postgres, Redis, Node.js, and AWS + Terraform.

The role emphasizes shipping features end-to-end, owning CI and deployment, and improving observability while delivering fast, reliable data delivery. Ideal candidates have 7+ years in backend/infrastructure or startup leadership, fluency in major languages, and a