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# Staff Software Engineer - Backend/Start-Up/Cambridge, MA

- **Company:** Kelly Services Inc.
- **Location:** Boston, MA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Software as a Service, Cloud Computing, Relational Databases, Node.Js, TypeScript, Backend, Api Design
- **Published:** July 14, 2026
- **Apply:** https://dejobs.org/x/x/C345463790F54EEFAD23A8795D5EA862/job/

## About the Role

Strong experience with backend frameworks (Node/TypeScript), relational databases, and API design

Technical leadership in large-scale projects

Experience with multi-tenant SaaS and product-driven systems

Strong communication skills

Desired Skills & Experience

Cloud infrastructure experience

Mentorship ability

8+ years of professional development

What You Will Be Doing

Hands-on backend development

Leading architecture and API scaling

Collaborating with product and engineering teams

Improving core system performance and reliability

## Description

A start up in Boston is hiring a Staff Backend Engineer to help lead the development and architecture of their core backend systems. In this role, you'll work with product leadership and engineering teams to shape scalable API platforms, build new product features, and create data models that support rapid platform growth.

You'll be working on multi-tenant SaaS products, complex data models, and modern APIs. You will thrive in a collaborative environment, take full ownership of impactful projects, and contribute meaningfully to both team mentorship and the technical vision of the company.


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