Senior Backend Engineer - Real-Time Messaging & Scale

Blooio; New York (NY); On-site; USD 140,000 - 190,000; Full time

Job summary

Blooio is hiring a Senior Software Engineer to join the founding team and own significant pieces of the core platform. You will design and scale backend services, APIs, and messaging infrastructure while contributing to frontend features and integrations.

Ideal candidates have 5+ years in SaaS or developer-focused products, strong API design skills, and comfort working closely with founders in a fast-paced startup. Security and performance matter in every decision.

Qualifications

• 5+ years of professional software engineering experience, ideally building SaaS platforms or developer-focused products.
• Strong backend engineering and API design skills with experience in distributed systems.
• Proficiency with modern languages and stacks including JavaScript/TypeScript, Python, and relational databases.
• Experience with Next.js and React is a plus for full-stack contributions.
• Ability to own projects end-to-end in a fast-moving startup environment.

Responsibilities

• Design, build, and maintain scalable backend services, APIs, and core messaging infrastructure.
• Develop features across the customer dashboard, internal tools, and web applications.
• Build REST APIs, webhooks, third-party integrations, and automated workflows.
• Improve system reliability, performance, security, and scalability as usage grows.
• Help design robust, maintainable systems capable of real-time messaging and high-throughput workloads.
• Work directly with founders to translate product requirements into features.
• Write maintainable, well-tested code, conduct reviews, troubleshoot production issues, and improve engineering practices.
• Independently lead projects from design through deployment and maintenance.

Skills

Backend development

Node.js/TypeScript

Python

REST APIs

Distributed systems

Cloud infrastructure

Docker

Next.js

React

PostgreSQL

Tools

Docker

PostgreSQL

CI/CD tooling

Job description

Blooio is hiring a Senior Software Engineer to join the founding team and own significant pieces of the core platform. You will design and scale backend services, APIs, and messaging infrastructure while contributing to frontend features and integrations.

Ideal candidates have 5+ years in SaaS or developer-focused products, strong API design skills, and comfort working closely with founders in a fast-paced startup. Security and performance matter in every decision.