Staff Fullstack Engineer – Backend-Driven APIs & Scale

Modulate; Somerville (MA); Hybrid; USD 180,000 - 200,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Flexible PTO

Hybrid work model

HSA

FSA

Company holidays

Career growth resources

Equity

Job summary

Modulate is hiring a Staff Fullstack Engineer with a strong backend focus to scale our Developer and Enterprise APIs and backend services powering ML-powered voice technology. You will design, build, and optimize systems that enable safer, more trusted voice environments for our customers.

You will collaborate across engineering and product teams to craft scalable backend platforms, while occasionally delivering frontend features for integrated product experiences.

Qualifications

• Proven experience designing production-grade APIs and backend systems.
• Strong backend focus with ability to build frontend features when needed.
• Fullstack expertise with a clear strength in backend development.
• Experience building greenfield products and scaling existing systems.
• Solid understanding of system architecture, scalability, and distributed systems.
• Proven ability to collaborate effectively across engineering teams.
• Experience shipping products from concept to production.

Responsibilities

• Collaborate with engineers and product leaders to scope, design, and deliver new platform capabilities.
• Design, build, test, and deploy backend services and APIs powering customer products.
• Build frontend functionality where needed for seamless end-to-end experiences.
• Maintain and operate production systems ensuring reliability and performance.
• Contribute to architecture decisions and engineering best practices.
• Mentor teammates through code reviews and technical leadership.

Skills

Python (OOP)

APIs design

Fullstack backend

Distributed systems

System architecture

Collaboration across teams

Shipping products

Tools

React

AWS

Docker

Kubernetes

Job description

Modulate is hiring a Staff Fullstack Engineer with a strong backend focus to scale our Developer and Enterprise APIs and backend services powering ML-powered voice technology. You will design, build, and optimize systems that enable safer, more trusted voice environments for our customers.

You will collaborate across engineering and product teams to craft scalable backend platforms, while occasionally delivering frontend features for integrated product experiences.