Senior Backend Software Engineer Job in Boston

Motion Recruitment; Boston (MA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Medical Insurance

Dental Benefits

Vision Benefits

Paid Time Off (PTO)

401(k) {including match – if available

Job summary

Motion Recruitment is seeking a Senior Backend Software Engineer to grow an AI-driven CRM platform. You will own backend architecture for core platforms, design scalable data models, and build external APIs in Node. You’ll lead technical decisions and drive multi-tenant SaaS capabilities to support complex customer workflows.

Ideal candidates have 8+ years in backend systems, a CS degree (MS preferred), and strong communication for practical tradeoffs across teams.

Qualifications

• 8+ years of experience building and scaling backend systems.
• BS in Computer Science (MS preferred) or a relevant field.
• Ability to communicate clearly and make practical tradeoffs.

Responsibilities

• Lead backend architecture and development for core platform initiatives
• Scale and enhance the API platform, including performance, versioning, and multi-tenant capabilities
• Design and develop scalable backend systems and customer-facing platform features
• Build and maintain core engineering frameworks and platform services
• Explore and implement AI-powered product capabilities

Skills

Backend architecture

Node.js

TypeScript

PostgreSQL

SaaS / multi-tenant

Technical leadership

Education

BS in Computer Science (MS preferred)

Job description

Job Description

A growing CRM startup company is looking to hire a Senior Backend Software Engineer to help build out and improve their AI driven modern CRM platform. You’ll work on their backend work streams, API platform, core data model, and systems that lead the way for new product capabilities. In this role, you’ll help build external API platforms, ship new AI-driven capabilities, build new applications in Node, and design data model and system architecture to support their increasingly complex customer workflows.

Required Skills & Experience

• Strong backend architecture and system design experience
• Strong experience with Node.js, TypeScript, PostgreSQL, database design, and backend scalable solutions
• Strong experience with SaaS platforms, multi-tenant architecture, and scalability
• Time spent in technical leadership roles (tech lead, staff engineer, or equivalent)

Desired Skills & Experience

• 8+ years of experience building and scaling backend systems
• BS in Computer Science (MS preferred) or a relevant field
• Ability to communicate clearly and make practical tradeoffs

What You Will Be Doing

Daily Responsibilities

• 100% Hands On
• Lead backend architecture and development for core platform initiatives
• Scale and enhance the API platform, including performance, versioning, and multi-tenant capabilities
• Design and develop scalable backend systems and customer-facing platform features
• Build and maintain core engineering frameworks and platform services
• Explore and implement AI-powered product capabilities

The Offer

• Bonus OR Commission eligible

You will receive the following benefits

• Medical Insurance
• Dental Benefits
• Vision Benefits
• Paid Time Off (PTO)
• 401(k) {including match – if applicable}

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.