Back to all roles

Lead Software Architect | Upto $95/hr

Remote-first Full-time Now hiring

About The Job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey. Position: Senior Full-Stack Engineer, Multi-Tenant SaaS Platforms Type: Contract Compensation: $75–$95/hour Location: Remote Role Responsibilities

  • Lead architecture decisions across frontend, backend, data, and infrastructure for a multi-tenant SaaS product. Balance configurability with maintainability.
  • Build admin-managed configuration for fee models, reporting periods, escalation rules, and integrations. Ensure no code changes are required per tenant.
  • Design and maintain RBAC across distinct user populations with separate permission matrices per portal.
  • Develop fee calculation engines supporting percentage, flat, capped, and tiered models. Deliver audit-ready exports at penny-level precision.
  • Implement payment lifecycle tracking, cash reconciliation, and exception handling against external payment systems.
  • Integrate payment processors, procurement ERPs, CRM systems, and notification services into a cohesive platform.

Qualifications

Must-Have

  • 5+ years of professional full-stack engineering experience.
  • 2+ years as a lead or sole developer on a production SaaS product.
  • Experience building multi-tenant SaaS with tenant-level configurability.
  • Developed role-based access control spanning internal operators, vendors, and customers.
  • Built fee calculation engines and payment lifecycle tracking.
  • Integrated payment processors, procurement ERPs, and CRM systems.
  • Strong written and verbal communication skills.

Preferred

  • Experience with government procurement or regulated financial compliance.
  • Familiarity with government payment gateways.
  • BI embedding experience with row-level data isolation across tenants.
  • Experience exposing platform functionality through a typed SDK or API.

Application Process (Takes 20–30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
  • For any help or support, reach out to: [email protected]

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity. Apply tot his job Apply To this Job

More remote roles

Field Service Software Engineer

Remote-first Full-time

.Net Full Lead , Remote

Remote-first Full-time

Senior Principal Software Engineer

Remote-first Full-time

Senior Software Engineer (Full Stack Java/React) - Commissions Platform - HYBRID

Remote-first Full-time

Software Engineer, Performance Marketing

Remote-first Full-time

Software Engineer (Engineer III to Principal) - Formal Methods

Remote-first Full-time

Sr Staff Engineer - Software

Remote-first Full-time

Sr. Software Engineer II - Backend

Remote-first Full-time

IT Manager, Senior (Senior Software Development Manager)

Remote-first Full-time

Senior Cloud Software Engineer - Intelligent Document Processing

Remote-first Full-time

SaaS Commissioned Sales Representative APAC (Remote)

Remote-first Full-time

Experienced Customer Service Representative – Virtual Customer Support Specialist (Work From Home) at arenaflex

Remote-first Full-time

Tax Preparer/CPA

Remote-first Full-time

Experienced Full Stack Data Entry Specialist – Remote Customer Service Team Lead

Remote-first Full-time

Account Executive (Retail)

Remote-first Full-time

Experienced Customer Service Manager – Driving Exceptional Customer Experiences in a Dynamic Retail Environment

Remote-first Full-time

Experienced Chat Support Agent (Remote) - Entry Level, No Degree Required - $15-$18 per Hour

Remote-first Full-time

Experienced Full Stack Software Engineer – Web & Cloud Application Development

Remote-first Full-time

Senior Engineer, Supply Chain Systems (Remote)

Remote-first Full-time

[Remote] Workers Compensation Claims Adjuster (California Experience Required)

Remote-first Full-time