Senior Backend Architect: Scalable Microservices

Prospex CRM; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Prospex CRM is seeking a Senior Software Engineer to lead backend architecture for our procure-to-pay platform. You will design, develop, and maintain scalable backend services and APIs, collaborating with product, frontend, and DevOps teams to deliver robust systems.

The role emphasizes integrations (including ERP systems), database optimization (MongoDB), and creating resilient, observable services. You will mentor engineers and influence long-term technology decisions to improve performance

Qualifications

• Breadth of backend design and implementation across services.
• Experience building scalable backend systems.

Responsibilities

• Lead system architecture for backend platforms.
• Develop scalable backend services and APIs.
• Collaborate with product, frontend, and DevOps teams.
• Integrate with critical third-party systems including ERPs.
• Optimize database queries and data storage (MongoDB).
• Troubleshoot and evolve backend systems for performance.
• Mentor junior developers and enforce best practices.
• Implement monitoring, logging, and alerting for reliability.
• Contribute to backend technology strategy and stack choices.

Skills

MEAN Stack

Distributed Systems

API Design

Node.js

Express.js

Nest.js

MongoDB

SQL/NoSQL

Websockets

Tools

Nx.dev

Job description

Prospex CRM is seeking a Senior Software Engineer to lead backend architecture for our procure-to-pay platform. You will design, develop, and maintain scalable backend services and APIs, collaborating with product, frontend, and DevOps teams to deliver robust systems.

The role emphasizes integrations (including ERP systems), database optimization (MongoDB), and creating resilient, observable services. You will mentor engineers and influence long-term technology decisions to improve performance