Senior Backend Engineer — AI-Driven SaaS Platform (Node/TS)

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

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.